/* Changes for RSL * *--------------------------------------------------------------------- * v1.42 Released 7/12/2011 * * 1. radar_to_uf.c (RSL_radar_to_uf_fp): Changed scale_factor used for storing * differential phase (PH) in UF from 100 to 10. The usual scale factor * of 100 caused values over 327.67 to become negative when converted to * short integer. *--------------------------------------------------------------------- * v1.41 Released 6/22/2011 * * 1. wsr88d_m31.c: Simplified the WSR-88D ray structure and supporting code. * Added support for dual-polarization data fields. * Thanks go to Andy Spencer for code contributions. * wsr88d_to_radar.c, wsr88d_m31.c: Renamed load_wsr88d_m31_into_radar to * wsr88d_load_m31_into_radar, to be consistent with naming convention. * 2. Added support for Sigmet 2-byte data types, as well as HydroClass 1 and 2 * byte types. Files involved: nsig_to_radar.c, nsig.c, nsig.h, volume.c. * Modified nsig_to_radar.c and rsl.h to handle Sigmet dual PRF. * Thanks to Fabio Sato and Cesar Beneti for the dual PRF code. * 3. Completed DORADE ingest. Files involved: dorade_to_radar.c, dorade.c, * volume.c. * 4. rsl.h, radar.c, radar_to_uf.c, uf_to_radar.c, volume.c: modified for RHI. * nsig_to_radar.c: Thanks go to Scott Collis for a bug fix involving RHI. * 5. anyformat_to_radar.c: Thanks to Thiago Biscaro for fixing a pipe problem * that caused processes to remain open. * 6. gzip.c: Thanks to Dan Sheldon for fix for a file descriptor leak. *--------------------------------------------------------------------- * v1.40 Released 10/10/2008 * * 1. wsr88d_m31.c (load_wsr88d_m31_into_radar): Corrected a potential problem * in which the end of sweep or volume might occur at a point in the program * that was isolated from the code that handles that condition. * Store vcp in radar header. * 2. rsl.h: Added vcp to radar header structure for WSR-88D. * 3. nsig_to_radar.c: Corrected a problem involving Extended Header, which * when present, caused elevation in ray header to be set to 0. * 4. wsr88d_m31.c (wsr88d_load_ray_into_radar): Changed the way we determine * whether or not to keep the reflectivity field (we don't want it from * Doppler split cuts). The previous method was inadequate for VCP 121. * 5. read_write.c (RSL_write_radar_fp, RSL_write_volume, RSL_write_sweep) * (RSL_write_ray): Initialize header_buf to zero to avoid junk in output * files. This provides clean outputs for comparing in test situations. *--------------------------------------------------------------------- * v1.39 Released 07/24/2008 * * 1. Added wsr88d_m31.c. It contains routines to handle new Message Type 31 * in WSR-88D Level II Build 10. * 2. wsr88d_to_radar.c: Modified to call message 31 routine. * 3. wsr88d.c: Added code for VCPs 211, 212, 213. * 4. lassen_to_radar.c: Added a fix for PhiDP provided by Scott Collis of BMRC. * *--------------------------------------------------------------------- * v1.38 Released 11/29/2007 * * 1. wsr88d.c (wsr88d_read_sweep): Modified to handle unusual message packets * at start of WSR-88D files from some future GPM sites. * *--------------------------------------------------------------------- * v1.37 Released 06/19/2007 (Severity: low) * * 1. radar_to_uf.c, uf_to_radar.c: Modified to use Local Use Header to store * and retrieve WSR-88D VR azimuth. This is necessary because WSR-88D runs * separate scans for DZ and VR at lower elevations, which means that they * have different azimuths for a given ray. Thanks go to Pat Kennedy of CSU * for discovering this problem and for bringing it to our attention. * 2. lassen_load_sweep in lassen_to_radar.c: Removed 1.4 dB correction for * reflectivity--BMRC version no longer uses it. * *--------------------------------------------------------------------- * v1.36 Released 08/29/2006 (Severity: low) * * 1. Forgot to put the modified wsr88d_locations.dat file into previous * release. * *--------------------------------------------------------------------- * v1.35 Released 08/28/2006 (Severity: low) * * 1. lassen_to_radar.c: fixed a bug in lassen_load_sweep where sweep index * was being used for sweep number in headers. * 2. radar.c: Modified RSL_get_volume to return volume for any field type. * It had been limited to velocity, spectrum width and reflectivity types. * 3. Added SQ_INDEX for Signal Quality Index field. Files modified: rsl.h, * volume.c, nsig_to_radar.c, nsig.h, uf_to_radar.c, radar_to_uf.c. * 4. wsr88d_locations.dat modified to change height units from feet to meters. * Thanks go to Dave Makofski for finding and fixing that one. * *--------------------------------------------------------------------- * v1.34 Released 02/15/2006 (Severity: low) * * 1. wsr88d.c: Fixed a bug in checking msg_type. The problem occurred while * processing data from Houston, which recently switched over to the new * Open RDA (ORDA) being implemented by NEXRAD. Msg_type is in the * righthand byte of a two-byte word, the left containing Channel ID, * but the full two-byte value was being used to check msg_type. This * became a problem when ORDA used a non-zero value for Channel ID. * 2. wsr88d.c and wsr88d_to_radar.c: Added information for new VCPs 12 and * 121. * 3. Added Huntsville site to wsr88d_locations.dat. * *--------------------------------------------------------------------- * v1.33 Began 02/25/2004. Released 08/27/2004 (Severity: low) * * 1. Modified wsr88d_to_radar.c and anyformat_to_radar.c to handle change in * WSR-88D header record for Level II Build 5 data format. * 2. Fixed a bug in wsr88d.c, wsr88d_read_sweep, which caused the last ray * of sweep to be deleted along with empty rays in second tilt and above. * *--------------------------------------------------------------------- * v1.32 Began 11/05/2003. Released 02/13/2004 (Severity: low) * * 1. Changed computation of sweep seconds in nsig_to_radar.c to eliminate * rounding error. * 2. wsr88d_to_radar.c: removed call to wsr88d_get_wavelength, which computed * the WSR-88D wavelength when parameters were available, or returned a * constant otherwise. Replaced with constant wavelength of 10 cm. Thanks to * Joe Holmes of SIGMET for noticing differing wavelengths between fields. * 3. Added ingest for Rainbow format. Only handles DZ. * *--------------------------------------------------------------------- * v1.31 Began 04/30/2003. Released 09/03/2003 (Severity: low) * * 1. nsig_to_radar.c: removed unused #define, made some cosmetic changes in * code and comment alignment. * 2. Makefile.am: Added line to install include-directory under target * install-exec-hook. * 3. Added code to configure.in to fix yywrap unresolved reference that * occurred when installing rsl when the TSDIS toolkit was not installed. * *--------------------------------------------------------------------- * v1.30 Began 07/30/2001. Released 03/13/2003 (Severity: low) * * 1. Increased the size of parameter arrays in nsig.c as recommended by * Paul Kucera, to accommodate NPOL polarimetric parameters. * 2. Fixed a bug in nsig_endianess in nsig.c. * 3. Modified uf_to_radar to compute unambiguous range using PRF. Reduced * UF record length by removing extra byte at end of record. Made to handle * 4-digit years (previously assumed 2-digit, as declared in UF documention). * 4. Modified hdf_to_radar to use more accurate value for sweep.h.nrays. * 5. Corrected computation in function wsr88d_get_azimuth_rate in wsr88d.c. * 6. Fixed bug in sweep rate computation in wsr88d.c * 7. Changed wsr88d_ray_to_float in wsr88d.c to use field data pointers * provided in the data, instead of computing offsets. The latter method is * incorrect according to NOAA Radar Operations Center. * 8. Modified radar_to_uf to get fixed angle for mandatory header from value * stored in ray. Previously used average elevation of sweep. * 9. Added examples/adjust_gate_size.c, and added enhanced version of qlook.c * which uses it. *10. Fixed problem in which rsl libraries could not be built if a library * didn't already exist in the target directory. Brought configure.in up to * date with autoconf version 2.53 standards. Removed acconfig.h. *11. Removed outdated email addresses found in comments. * *--------------------------------------------------------------------- * v1.29 Began 09/19/2000. Released 4/3/2001 (Severity: low) * * 1. Modified radar_to_hdf_1.c maskBuild() to build MZ mask differently: * maskBuild was checking where CZ and DZ volumes were equal * to build MZ volume (mask). Now, maskBuild just checks where * CZ volume == BADVAL, for runtime speed, and because the comparison between * CZ and DZ volumes was corrupted by the addition of qcParm[ZCAL] to * each CZ range bin in level_1_qc.c qualityControl(). This change is * compatible with Danny Rosenfeld's algorithm by which CZ range bins * are set to BADVAL. * 2. Included Stacy Brodzik's modifications for storing calibration constants * in UF (radar_to_uf.c, uf_to_radar.c). * 3. Corrected version string and units for sweep rate written to UF mandatory * header in radar_to_uf.c, thanks to Joseph Holmes of Sigmet for catching * the inaccuracies. Corrected rounding error in latitude/longitude for UF * mandatory header in same program. Modified assignments of sweep rate * and/or azimuth rate in uf_to_radar.c and hdf_to_radar.c * *--------------------------------------------------------------------- * v1.28 Began 03/23/2000. Released: 7/24/2000 (Severity: low) * * 1. Added 3 functions to volume.c : * RSL_add_dbz_offset_to_volume() , RSL_add_dbz_offset_to_sweep(), * RSL_add_dbz_offset_to_ray() * 2. Modified nsig.h , nsig_to_radar.c , volume.c to handle sigmet's * RhoHV and PhiDP fields. * 3. Modified volume.c to fix problem with subsequent calls to * read_these_sweeps() * 4. Modified uf_to_radar.c to compute unambiguous range for * Radar structure. * *--------------------------------------------------------------------- * * v1.27 Began 01/11/2000. Released: 2/17/2000 (Severity: low) * * 1. Modified files radar_to_hdf_1.c and radar_to_hdf_2.c * to accomodate random ray lengths, eg, Berrimah data. * *---------------------------------------------------------------------- * v1.26 Began 12/11/1999. Released: 12/21/1999 (Severity: low) * * 1. Configuration change for rapic.l and rapic.y. * 2. Changed dependency for rsl.h and wsr88d.h * *---------------------------------------------------------------------- * v1.25 Began 11/30/1999. Released: 12/10/1999 (Severity: medium) * * 1. Merged branch v1.24.1. * 2. Added configure/configure.in/Makefile.in. * 3. Added Makefile.am (automake) and other related files. * 4. Configuration is a snap: * * configure --prefix=/some/dir/to/install * make install * *---------------------------------------------------------------------- * v1.24.1 Began 8/1/1999. Released: 11/30/1999 (Severity: new features) * * 1. Introduced radar->h.project[24] -- project name. * 2. Added dorade ingest -- RSL_dorade_to_radar. * 3. Added examples/kwaj_subtract_one_day.c -- fix KWAJEX dates. * 4. Removed rsl_popen/pclose routines from gzip.c. I found * a way to eliminate the 'Broken pipe' message, the message * reappeared in linux 2.2.* series, by flushing the * stream when looking at the magic numbers in anyformat_to_radar.c. * 5. HDF ROUTINES ARE REMOVED. I have moved them to gvs for level_1. * See gvs/src/gvslib/. That's where they live now. The interface * RSL_hdf_to_radar and RSL_radar_to_hdf remain as hooks. If * you have libgvs, then you can specify -DHAVE_TSDIS_TOOLKIT in * the Makefile. * *---------------------------------------------------------------------- * v1.24 Began 6/25/1999. Released: 6/28/1999 (Severity: bug fix) * * 1. UF ingest improperly set the Fixed angle. * 2. Removed max_reasonable_dbz (60) from gts.c. The app must decide * what a max allowable dbz is. * *---------------------------------------------------------------------- * v1.23 Began 3/31/1999. Released: 4/2/1999 (Severity: upgrade) * * 1. Added EDGE format ingest. This requires the library ETOR * which is obtained from Enterprise Electronics. * To build this component, set -DHAVE_EDGE in Makefile. * *---------------------------------------------------------------------- * v1.22 Began 3/4/1999. Released: 3/4/1999 (Severity: bux fix) * * 1. Forgot to set the global 'rsl_kdp_wavelen' in nsig_to_radar.c. * *---------------------------------------------------------------------- * v1.21 Began 02/16/1999. Released: 3/4/1999 (Severity: minor bux fix) * * 1. UF code didn't recognize VE, now it does. * 2. RSL_SPEED_OF_LIGHT unifies c throughout the library. * 3. Modification to KDP processing for Sigmet. New * F and INVF functions. * *---------------------------------------------------------------------- * v1.20 Began 11/12/98. Released: 01/25/1999 (Severity: bug fix/upgrade) * * 1. Fixed RADTEC ingest. Does RHI too, but, * RSL doesn't have any good RHI image routines. * * 2. Added: RSL_set_color_table * RSL_get_color_table * * 3. Added: '-b x' option to any_to_gif. This makes images black below * x dbz. This is a simple noise filter. *---------------------------------------------------------------------- * v1.19 Began 9/15/98. Released: 9/23/98 (Severity: bug fix) * * 1. Modified file volume.c . New INV_F, _F routines for diff refl. * * 2. Created examples/images to hold a base-line set of images * to compare when running 'run_tests'. Modified run_tests * to compare images. * *---------------------------------------------------------------------- * v1.18 Began 4/28/98. Released: 8/13/98 (Severity: upgrade) * * 1. Added routines: * RSL_radtec_to_radar -- in radtec_to_radar.c * RSL_fix_time -- in volume.c * * 2. Added files: * radtec.c * radtec.h * radtec_to_radar.c * * 3. Modified image generation. Images are produced out to 'range' * specified. Each image pixels is no longer 1km, but radius/range. * * 4. any_to_gif can now accept range and image size arguments. * * 5. RADTEC requires PKWARE routines explode and crc32. * RADTEC is built into RSL, if you specify -DHAVE_PKWARE in * the Makefile. When using RADTEC, you must link your application * staticly; with -static. * * Contact PKWARE at 414-354-8699. * * 6. Modified radar_to_hdf_1.c. Removed ZDR data from 1C-51 HDF. * * 7. Moved HDF_FILE_VERSION definition from toolkit_1BC-51_appl.h * into the application level_1.c * *---------------------------------------------------------------------- * v1.17 Began 4/23/98. Released: 4/28/98 (Severity: upgrade) * * 1. Finally received info regarding KDP (KD_INDEX) for SIGMET. * Assumming the units are similar for LASSEN. Boosted nsig_to_radar * to recognize KDP. It is really KDP * wavelength. * The units are deg*cm/km. You must divide out the wavelength, * if that is desired. * * 2. BADVAL/NOECHO mod for nsig_to_radar.c. This should affect * the values that may be stored in any possible UF output. * * WTD : lassen_to_radar.c - check the ZDR conversion, if any. Do * we need this? * WTD : RHI * *---------------------------------------------------------------------- * v1.16 Began 3/6/98. Released: 4/21/98 (Severity: bug fix/upgrade) * * 1. Changed how any_to_gif output's filenames produced. Now, they * are written to stdout. -v (verbose) and -V (all volume) options * are added. Changed image_gen.c (RSL_volume_to_gif) to output * filenames to stdout. * * 2. You really do need 'bison' (GNU yacc), 'flex' (GNU lex) and * make (GNU make) to build this library. This has been true * since v1.15 when I introduced the rapic format. These programs * are superior to those on your stock Unix system, so take the * time to install them. * * 3. README explains how to apply patches. * * 4. Eliminated the reduce/reduce conflict in rapic.y * * 5. Year 2000 compliant. * * 6. I forgot the format in sprintf. See rapic.y. * *---------------------------------------------------------------------- * v1.15 Began 2/20/98. Released: 3/4/98 (Severity: bug fix/upgrade) * * 1. Michael Whimpey from BMRC, Australia changed code, for the * different callibrations, between, Pre_mctex, mctex, Gunn_Pt * periods. Please see code where there is m.whimpey. See * lassen_to_radar.c * * 2. Added RAPIC format ingest. RSL_rapic_to_radar. * I used GNU Bison (YACC) and GNU Flex (LEX) to code the RAPIC ingest. * This format is used by the Berrimah radar. See rapic_to_radar.c, * rapic_routines.c, rapic.y, and rapic.l. * Not tested w/ older YACC and LEX found on older Unix systems. * * 3. Fixed a bug regarding the reading of stdin streams. Now * you can read compressed or uncompressed files from stdin. * Previously, you couldn't specify NULL as a filename and * have it work reliably in all cases for any file format. * This bug was found by accident and it is nothing you should * be worried about in earlier RSL releases. The reason you need * not worry about it is because 'RSL_anyformat_to_radar' cannot * accept NULL as a filename. For you to notice this, you must * have called the specific ingest routine for the format * being read: RSL_lassen_to_radar, for example. * * 4. Bug in the UF ingest. The scale_factor needs to be float. * When it was 'int', round off errors (truncation) were * happening. This affected the Velocity data, only. The reflectivity * data seemed unaffected, because, the magnitude of the values * was high enough to avoid truncation. *---------------------------------------------------------------------- * v1.14 Began 2/2/98. Released: 2/3/98 (Severity: upgrade) * * 1. Added calibration for Gunn Point radar. Assumes that * the radar name will be 'Gunn_Pt'. * *---------------------------------------------------------------------- * v1.13 Began 1/16/98. Released: 1/26/98 (Severity: minor bug fix) * * 01/16/98 * * 1. radar_to_hdf_1.c: Changed decision algorithm regarding * whether or not to write a VOS into a 1C-51 HDF file. * 1C-51 HDF VOS time_slot status is encoded within the * metaData field 'TK_GEN_DATE_INPUT_FILES'. * *---------------------------------------------------------------------- * v1.12 Began 1/12/98. Released: 1/12/98 (Severity: minor bug fix) * * 1. Changed HDF metadata item for empty granules. * *---------------------------------------------------------------------- * v1.11 Began 12/17/97. Released: 12/17/97 (Severity: minor bug fix) * * 1. Increased the size of pipecmd in RSL_write_gif and TK_MAX_FILENAME to 256.* 2. Modified image_gen.c to increase the data range of Zdr values. * 3. Bug fix in radar_to_hdf_1.c: No longer dumps core for "tiny" sweeps having fewer than 5 rays. * *---------------------------------------------------------------------- * v1.10 Began 8/27/97. Released: 10/21/97 (Severity: minor upgrade) * * 1. Modified ZDR image generation: rsl.h, image_gen.c, ZDR color tables. * 2. Added South Africa data format ingest. Not possible to * interface in RSL_anyformat_to_radar, at this time. The format * is primitive and I need to convert RVPC to dBZ. * 3. Modified HDF component to maintain integrity of anomalous_condition * flags. (RFVAL, APFLAG, NOECHO, BADVAL) * Files: toolkit_1BC-51_appl.h, hdf_to_radar.c, radar_to_hdf_2.c * 4. Modified radar_to_hdf_1.c for TSDIS/DAAC metadata requirements. * 5. Modified any_to_gif.c to output site and date/time for image filenames. * 6. Added QC algorithm parameter. Modified files: * toolkit_1BC-51_appl.h, radar_to_hdf_1.c, radar_to_hdf_2.c, * hdf_to_radar.c * *---------------------------------------------------------------------- * v1.9 Began 8/18/97. Released: 8/18/97 (Severity: bug fix) * * 1. Mofified radar_to_hdf_1.c : Metadata mods for TSDIS. * *---------------------------------------------------------------------- * v1.8 Began 7/30/97. Released: 8/05/97 (Severity: upgrade) * * 1. Added RSL_read_these_sweeps. Specify specific sweep numbers for * ingest. This drastically speeds up ingest, if you're only interested * in the first or first couple of sweeps. For example, making * base scan images. * wsr88d -done * UF -done * sigmet -done * lassen -done * HDF -done * toga -done * mcgill -done. BUT, apparently, mcgill ingest is broken!!! * When did this happen? * * 2. Added RSL_load_zdr_color_table(); * Includes color tables for this field. See colors/ * * 3. More HDF mods; more warning messages. * * 4. The TRMM Office has fixed several bugs in the TSDIS toolkit. * For proper HDF creation, that conform to TSDIS HDF specifications, * you will need toolkit 4.5r1.1. * * Toolkit 4.5r1.1 is an unofficial release; the TRMM office will * pass this out upon request. * *---------------------------------------------------------------------- * v1.7 Began 7/23/97. Released: 7/25/97 (Severity: bug fix) * * 1. Handles corrupt SIGMET files more gracefully. * * 2. All lat/lon (degree,minute,second) triplets have the same sign. * Except, if UF, then what ever the file tells me and if they're * not all the same sign, then you'll have * to correct the UF w/ an RSL application. In other words, UF * stores the lat/lon as deg/min/sec and they have their own signs; * Strict UF have deg/min/sec all w/ the same sign, anyway. * * 3. Minor changes to HDF component of RSL. *---------------------------------------------------------------------- * v1.6 Began 5/02/97. Released: 7/23/97 (Severity: bug fix) * * 1. wsr88d_to_radar.c -- Was too permissive. No longer defaults to KMLB. * If unable to establish a valid site based on callID or first_file, * returns NULL. * * 2. 18 Jul 97 Kolander * Modified radar_to_uf.c & uf_to_radar.c : Fixed some incorrect and * missing sweep and ray header values. Salvaged some numerical precision. * * 3. Fixed a time problem in nsig_to_radar.c. Daylight savings time. * * 4. Saves lat/lon on each ray for UF. * *-------------------- * 16 Jun 97 Kolander * * Modifications to radar parameter calulations in: * wsr88d_to_radar.c, wsr88d.h, wsr88d.c, nsig_to_radar.c, * lassen_to_radar.c, rsl.h * * Modified HDF-related files: * hdf_to_radar.c toolkit_1BC-51_appl.h * and split file 'radar_to_hdf.c' into two files: * radar_to_hdf_1.c and radar_to_hdf_2.c * Can handle oddly sized and/or corrupt VOSs. *---------------------------------------------------------------------- * v1.5 Began 3/17/97. Released: 4/30/97 (Severity: minor upgrade) * * 1. Additional error checking in wsr88d.c to warn when number of gates * expected is exceeded. * 2. Changes by Mike Kolander affect the HDF component of RSL. This * version of RSL works with the TSDIS toolkit 4.0. * 3. Changes to carpi and cube functions, see below. *------------------------- * Date: 26 Mar 97 kolander * * Files: radar_to_hdf.c, hdf_to_radar.c * Moved QC parameters out of the metadata string into VOS comments * field. * * Files: rsl.h, anyformat_to_radar.c * Moved enum File_type definition from anyformat_to_radar.c into * rsl.h *-------------------------- * Date: 17 Mar 97 kolander * * File: rsl.h * Changed carpi structure: * Added f, invf fields. * (Carpi_value **)data is now a doubly indexed array 'data[nrow][ncol]' * Changed slice structure: * Added f, invf fields. * (Slice_value **)data is now a doubly indexed array 'data[nrow][ncol]' * Added function prototypes for: * RSL_free_carpi, RSL_free_cube, RSL_free_slice, RSL_new_cube, * RSL_new_slice, RSL_carpi_to_cart, RSL_carpi_to_gif, * RSL_carpi_to_pict, RSL_carpi_to_ppm, RSL_carpi_to_pgm * * File: cube.c * Added functions: * RSL_free_slice, RSL_new_slice, RSL_new_cube, RSL_free_cube * Modified functions: * RSL_volume_to_cube, RSL_get_slice_from_cube * * File: carpi.c * Added functions: * RSL_free_carpi * Modified functions: * RSL_new_carpi, RSL_find_rng_azm, RSL_cappi_to_carpi * * File: image_gen.c * Added functions: * (These are modified clones of the sweep image_gen functions.) * RSL_carpi_to_cart, RSL_carpi_to_gif, RSL_carpi_to_pict,, * RSL_carpi_to_ppm, RSL_carpi_to_pgm * *---------------------------------------------------------------------- * v1.4 Began 12/24/96. Released: 3/7/97 (Severity: bug fix) * * 1. Some WSR88D files have a 'radial status' of 28. This is un- * documented. I assume it means some catastrophic reset has occured. * Therefore, the code that counts the number of rays is modified * to rely on the 'ray_num' reported upon reading the file. * Also, I assume that when the status tells me that I'm reading * the 'start of a new elevation' (status == 0) that all subsequent * records will overwrite previously stored rays. * * I've seen this status number(28) occur, rarely, in the * WSR88D data. See wsr88d.c. * * 2. Removed kwaj component. - Mike. * * 3. Installs toolkit_1BC-51_appl.h in INCDIR. This file is needed * only if you plan to use the HDF component. * * 4. Fixes a freeing bug in nsig.c. Added member nparams to the * NSIG_Sweep structure to track this for the free routine. * * 5. Ray indexing bug fixed in wsr88d_to_radar.c which produced an * invalid time when the first wsr88d ray was null. Basically, using * 'i' instead of 'iray'. *---------------------------------------------------------------------- * v1.3 Began 08/26/96. Released: 12/17/96 (Severity: upgrade) * * 1. Lassen field 'Zdr' loaded into RSL 'ZD' field, not the RSL 'DR' * field, as originally envisioned within HDF functions. Henceforth, * 'ZD' represents (linear) reflectivity depolarization ratio: * ZD = 10log(Z_horiz/Z_vert) in units dB * as opposed to the circular depolarization ratio. * * What exactly are the RSL 'LR' and 'DR' fields?? * * * For consistency of field nomenclature: * * Renamed 'CR' to 'CD'. (corrected ZDR for 1C-51) * 'MR' to 'MD'. (1C-51 mask for ZDR) * * CD_F returns ZD_F * CD_INVF returns ZD_INVF * * 2. Sort by time forgot to compare the hour field. Minor fix. * * 3. Fix z_to_r to return proper value. * * 4. Lassen ingest: fix the sign of deg/min/sec so they match. * Trusting that the sign of the deg is correct. * * 5. Added RSL_select_fields. This reduces memory requirements * upon ingest. You can select, "all" (default), "none" (just to * get header info) or "dz", "vr", ... * * WHAT? STATUS? * lassen done * wsr88d done * UF done * nsig done * nsig2 done * kwaj not applicable as it only has DZ. * hdf done * mcgill not applicable as it only has DZ. * toga not done. If you want to do this, feel free. * * 6. Uses 'gzip -1'. This cuts the time for making UF files in half. * * 7. Renamed 'makefile' to 'Makefile' * * 8. The HDF component has changed drastically and is not compatable * with previous versions. It may change again, contingent upon * the TSDIS toolkit 3.5.2.1 (as of 12/17/96). Expect minor changes * to the HDF component in the future. * * 9. Pruning of sweeps and rays now sets moved object pointers to * NULL. See prune.c * *10. Updated nsig_to_radar.c to check for ant_scan_mode. If mode is * RHI, then return NULL because RSL can't handle RHIs. --Paul * *11. Split memory management routines for hdf processing. --Mike K. *---------------------------------------------------------------------- * v1.2 Began 08/26/96. Released: 9/6/96 (Severity: minor bug-fix upgrade) * * 1. Eliminated zero sized arrays in lassen.h. SGI 'cc' can't * handle zero sized arrays. This brings back the -pedantic * compile flag. * * 2. Implemented popen and pclose (called rsl_popen and rsl_pclose) * to eliminate the annoying message 'Broken pipe.' on SGI and HP * computers. * * 3. The HDF component is incompatable with earlier versions because * of the use of additional fields. It now uses the MASK fields * and calibration information. It should be considered that the * HDF component is in a state of flux. * * 4. Minor bug in nsig.c wherein when rays are missing (0 sized) * that not all rays present will be ingested. This is fixed. * * 5. Copyrighted the software. * * 6. 'anyformat_to_radar' can recognize HDF files. * *---------------------------------------------------------------------- * v1.1 Began 08/21/96. Released: 08/22/96 (Severity: SERIOUS bug fix) * If you have already upgraded to RSL v1.0.1, then this is a minor * upgrade. * * 1. I should have left well enough alone. But, getting rid * of rsl.h.template in favor of only having rsl.h has revealed * a serious bug. * * THIS BUG IS IN V1.0 ONLY. * * The type for 'Range' could be built into * the RSL differently than how your application is built. * For instance, if RSL is built with USE_TWO_BYTE_PRECISION, then * your application will think 'Range' is a one byte storage class, * because the default RSL configuration is to use one byte storage. * * This bug slipped through all the tests that I perform and was * discovered only when using the radar_to_hdf component of RSL. * Thanks to Mike Kolander for finding this one. * * Configuration instructions are changed so that you must edit * rsl.h to use one byte precision. * * 2. All MCTEX fields are recognized and loaded into Radar. * h.f and h.invf are modeled after LASSEN conversion functions. * 3. Added radar_to_hdf.o to makefile. * 4. In examples/any_to_gif.c, outputs all fields. * 5. Three convience arrays are defined in rsl.h. * a. RSL_ftype[]; * b. RSL_f_list[]; * c. RSL_invf_list[]; * Each array is MAX_RADAR_VOLUMES long and contain: strings * representing the field type, a pointer * to the F function, and a pointer to the INVF function. * * Usage is conditional by defining USE_RSL_VARS before including * rsl.h. Use: * #define USE_RSL_VARS * #include "rsl.h" * * Normally, you shouldn't worry about this. * * 6. Removed -pedantic compile flag because LASSEN code has a 0 * sized array -- no warnings. *---------------------------------------------------------------------- * v1.0 Began 04/19/96. Released: 8/18/96 (Severity: minor upgrade) * * 1. Ignore SIGPIPE when making images. * 2. Can read UF files of MCTEX data. This UF file contains * RH and PH fields. This is LASSEN data that has been converted * to UF via a sun program. It is the LASSEN II format. * 3. Fixed date/time == 0 when calling uf_to_radar multiple times. * The second and subsequent calls produced 0 for the * radar->h.year/month/day and radar->h.hour/min/second. * 4. Always allocate MAX_RADAR_VOLUMES for new radars during ingest. * This will allow one to test any volume index for presence. * 5. Set the default functions to DZ_F. This sets CZ_F correctly. * It is unclear if the other conversion fuctions are properly * defined. * 6. Pure UF file ingest bug fixes. * 7. Added RSL_hdf_to_radar - Mike Kolander. * 8. Added RSL_radar_to_hdf - Mike Kolander. * 9. New field type: XZ for X-band Reflectivity. * 10. Working version of nsig_to_radar. - Paul Kucera. * This version works on both big endian and little endian (Linux), * and, for both version 1 and version 2 formats. Version 2 * files are generated on big-endian machines (so far, SGI Iris * computers), whereas, Version 1 files were written on * little-endian DEC computers. Two routines are provided: * * RSL_nsig_to_radar(char *infile); * RSL_nsig2_to_radar(char *infile); * * Nsig ingest can handle nsig files/tapes that were * written on a DEC (little endian) or an SGI (big endian). * It is handled automatically by examination of the 'magic' bytes. * You will note that the byte-ordering in the file is dependant * on which machine wrote the tape or file. The New-SIGMET * documentation does not specify which byte-ordering is to be used * when the file is written. * * Re-wrote nsig.c and beefed up nsig.h. Now, there is an * interface to read an entire nsig sweep. You can loop through * the returned sweep and pick your values, and load RSL. * This re-write was done to make reading version 2 files easier. * Additionally, all NSIG code for version 1 and version 2 files * is centrally located in: * nsig.h * nsig.c * nsig_to_radar.c * To have both versions supported in the same files, I use #ifdef * and the C preprocessor. 'nsig.h' is saturated with #ifdef NSIG_VER2 * constructs. Thus, only one source is maintained for both NSIG versions. * * 11. Added RSL_print_version(); * 12. Added docs for users guide, hdf. * 13. Added html 'grouping by functionality' page. * 14. Restores stdin and stdout when creating pipes. * The pipe readers need to loop until no data available, because * 'read/fread' will not get all the data in one call. * 15. Added moving platform headers to Ray structure: * float pitch; Pitch angle. * float roll; Roll angle. * float heading; Heading. * float pitch_rate; (angle/sec) * float roll_rate; (angle/sec) * float heading_rate; (angle/sec) * float lat; Latitude (degrees) * float lon; Longitude (degrees) * int alt; Altitude (m) * int rvc; Radial velocity correction (units of velocity) * * This information typically comes from NSIG. For other formats * the values are all zero. * 16. Read version 1.3 and 1.4 of LASSEN data. RSL_lassen_to_radar. * This means that RSL can read MCTEX data. * 17. Users manual. Walk a novice through a simple example and explain * what header information is important. Teach how to take advantage * of the library. * 18. Eliminated the #ifeq in makefile. Thus, rsl.h.template is removed * and rsl.h is resurrected. *---------------------------------------------------------------------- * v0.45 Began 03/26/96. Froze: 03/27/96 (Severity: minor) * * 1. Fixed broken pipe problem on HP and SGI. Cause unknown. * All I did was to remove the pclose in any_format_to_radar.c * It seems that if there is any data left in the pipe that a * SIGPIPE is sent when trying to close the pipe. * On SGI's this causes a core dump. This bug is difficult to * reproduce. * 2. Nsig ingest is severly broken. It always was. Work in * progress. * 3. It is important that TSDIS get this version to run on their SGI * as it prevents a core dump. Normally, this shouldn't affect * anyone. *---------------------------------------------------------------------- * v0.44 Began 03/19/96. Froze: 03/19/96. * * 1. In prune.c, pointers that are pruned are now set to NULL. * This elimated core dumps associated with trying to free structues. * 2. On gzip-ed UF output, stdout is flushed before the pipe is opened. * 3. Added reverse.c -- Reverse the order of the sweep pointers in * a volume. *---------------------------------------------------------------------- * v0.43 Began 03/01/96. Froze: 03/05/96. * * 1. farea.c -- nbins fix. * 2. On UF output, checks for NOECHO. * *---------------------------------------------------------------------- * v0.42 Began 11/27/95. Froze: 02/16/96. * * 1. Removed '#include '. * 2. Added a couple of missing prototypes in rsl.h.template. * 3. Added: * Ray *RSL_prune_ray (Ray *ray); * Sweep *RSL_prune_sweep (Sweep *s); * Volume *RSL_prune_volume(Volume *v); * Radar *RSL_prune_radar (Radar *r); * * These routine remove dataless substructures. Prompted by * poor NCAR ingest routines for UF files; it is wise to prune * a Radar prior to calling RSL_radar_to_uf. Therefore, if * software cannot read the UF files created by RSL, then try these * prune functions before outputting the UF file. In either case, * RSL_radar_to_uf produces valid UF files. * 4. Removed trigraph in mcgill.c. * 5. Fixed lassen ingest problem on Linux. I think XDR has a bug * where bit fields are not loaded properly. This is a kludge fix. * 6. Removed column.c. Code not mature and takes way too much * RAM. Included in the removal are the vertical structure routines. * The code has been moved to the application (qcwin). * 7. RSL_get_first_ray_of_sweep now returns when the ray number is 1 or * 0. This drasitically speeds the routine. * 8. Increased the UF buffer size from 4096 to 16384. *---------------------------------------------------------------------- * v0.41 Began 11/01/95. Froze: 11/20/95. * * 1. Minor doc changes. More up to date with implementation. * 2. Implemented 'radar_type' in the radar_header structure. Values * are strings and are: "wsr88d", "lassen", "uf", "nsig", "mcgill", * "kwajalein", "toga". * 3. Increased range of data (internal storage conversion functions) * when using 2 byte storage. Some nsig data can have values below the * default wsr88d function range. * 4. 'farea.c' -- Volumes are used to compute the fractional area. * This matches the latest specification of the function. * 5. Automatically uncompress files. Transparently sets up * a decompression pipe. If the input is not stdin, then 'anyformat_to...' * can peek inside a compressed file and determine what ingest routine to * use. Reading copmressed files from disk and internally uncompressing * them turns out to be the fastest form of ingesting wsr88d (only format * timed) data on my 486. However, I get mixed results on the HP 755. * 'anyformat_to...' uses 'gunzip' to peek inside compressed files. * 6. Can make gzip-ed UF files. The new routine is 'RSL_radar_to_uf_gzip'. * Also, RSL_radar_to_uf_fp takes a file pointer. Thus, you can * define your own output filter. * 7. Added RSL_write_radar_fp, RSL_write_radar_gzip. *---------------------------------------------------------------------- * v0.40 Began 10/24/95. Froze: 10/24/95. * * 1. Type cast for Sweep_header and Ray_header was removed so that * stock 'cc' on SGI could digest the code. File: column.c. Why? * * Version 0.39 was short lived. :-) *---------------------------------------------------------------------- * v0.39 Began 7/1/95. Froze: 10/24/95. * * 1. Mcgill library is not separate. Included in rsl in whole. * 2. Interpolation routines added. * 3. Added RSL_load_height_color_table -- and the colors/*height.clr * 4. Added RSL_load_rainfall_color_table -- and the colors/*rainfall.clr * 5. Removed RSL_print_{volume,sweep,ray} * 6. Removed some unused routines. * 7. Vertical_structure is its own type composed of Vertical_sweeps and * Vertical_rays (columns). * 8. Added doc/internal_routines.html. * 9. UF is exchangable between big and little endian. Finally, this * has been fixed. Now UF can be generated on little endian machines * and read on big endian (the UF generated is in big endian format even * on the little endian machine). And, visa versa. *10. New version of RSL_get_vertical_structure in column.c. Doc's updated. *11. Fixed bug in radar_to_uf. When the number of actual sweeps (and perhaps * volumes) is less than the determined max of the entire radar structure, * then the pointers may be erroneous. Paul caught this flounder. *12. Added RSL_uf_to_radar_fp. The FILE *fp version of the UF ingest. * Also, passing NULL to RSL_uf_to_radar means to read from stdin. *13. Added NOECHO flag for f and invf. Currently, defined for UF, NSIG and * Kwaj data. *14. Included source for libraries: wsr88d, lassen, tg, nsig, mcgill, * and kwajlein. Now linking needs only: -lrsl -lm *15. Simplified the configuration procedure. All configuration * is specified from 'makefile'. See README for new install instructions. *16. Removed ray_status, sec_num, atm_att, min_dif, sys_cal from ray * header. These are not used and specific for wsr88d. *17. Summary of routine that handle NULL filenames as STDIN. * RSL_wsr88d_to_radar * RSL_uf_to_radar -- calls --> RSL_uf_to_radar_fp * RSL_lassen_to_radar * RSL_nsig_to_radar * RSL_toga_to_radar * RSL_mcgill_to_radar *18. Removed RSL_get_sweep_index_from_volume. *19. Removed RSL_X_ray_indexes. Actually, just renamed the routine * to 'construct_sweep_hash_table'. The hash table retains the hi and * low ray pointers for closest ray comparison. Angle diff's removed. *20. Removed hash table implementation in the Sweep structure. It * is now implemented internally in RSL. *21. BADVAL valued depends on Range type. Picked to be out of range. * *---------------------------------------------------------------------- * v0.38 Began 6/1/95. Froze 6/29/95. * * 1. Makes 2's compliment, instead of 1's compliment, in sweep_to_cart. * 2. Modifications to eth functions. * 3. Added routine RSL_get_column. See column.c. * 4. Added Column data structure. * 5. Static pointer for image generation. Free up image pointer and * reallocate. Otherwise, we've got a memory leak when making many * images. * 6. Added Paul's and Dennis's modifications of the cappi routines. * I modified the cappi structure so that Sweep is a substructure. * This makes image generation and get_value_from_cappi easy to implement. * 7. Added a test program in examples/cappi_image.c to test cappi * generation. * 8. Change doc/ for the cappi routines. Routines added/modified are: * float RSL_get_value_from_cappi(Cappi *cappi, float rng, float azm); * int RSL_fill_cappi(Volume *v, Cappi *cap, int method); * void RSL_free_cappi(Cappi *c); * Cappi *RSL_new_cappi(Sweep *sweep, float height); * Cappi *RSL_cappi_at_h(Volume *v, float height, float max_range); * Carpi *RSL_cappi_to_carpi(Cappi *cappi, float dx, float dy, * 9. Carpi structure modified to be compatable with cappi routines. * 10. Added RSL_get_gr_slantr_h. -> range.c * 11. RSL_uf_to_radar only recognizes UF files. * 12. RSL_uf_to_radar handles TRUE UF, 2 and 4 byte record length delimeters. * 13. Minor bug fix in ray_indexes.c to handle RHI input. The number of * hash table entries is now a function of the beam_width and not the * number of rays. * 14. Bug fix in rebin_velocity_sweep. New velocity color tables. * 'examples/qlook.c' added. Yet another image generation program; * redundant. * 15. RSL_uf_to_radar allocated additional space for sweeps, when the * initial allocation is not enough. * 16. Added a programmers guide. See programmers_guide.html. * 17. Get_closest routines removed. * 18. Added RSL_kwaj_to_radar. -- Mike Kolander. * 19. Added docs for RSL_kwaj_to_radar. * * Note: Since v0.37 we've been using h.f and h.invf for the storage * functions and, thus, the library is not compatable with earlier * versions. All subsequent version are, however, compatable. * This means, code that used v0.36 and earlier will break (not * even link) with v0.37 or later. * * You must now use: * ray->h.f(ray->range[i]) instead of F(ray->range[i]) * and * ray->h.invf(x) instead of INVF(x). * *---------------------------------------------------------------------- * v0.37 Began 5/24/95. Froze 5/29/95. * * 1. Removed RSL_float_to_char; too specific. * 2. Implemented seperate conversion functions for each field type. * This added h.f and h.invf to Volume, Sweep and Ray headers. * The ingest routines optionally define there own conversion function. * Most of the time, though, I use the default: wsr88d conversions. * Tested: wsr88d, lassen, mcgill, UF, rsl. * Coded but not tested: toga, nsig. * 3. Added ETH routines: * Sweep *RSL_get_eth_sweep(Volume *v,float et_point); * float RSL_get_echo_top_height(Volume *v,float azim,float grange, float et_point); * 4. If using #define USE_TWO_BYTE_PRECISION, uses 100 as a storage * factor. Now, there is no loss of precision when converting between * internal and float. Before there was just a minor round off when * using any data that used anything other than 1/2 dbz precision. * Using 100 is more than enough. *---------------------------------------------------------------------- * v0.36 Began 5/19/95. Froze 5/19/95. * * 1. Magic in anyformat_to_radar was slightly different than expected * for lassen data. Tested on lassen data. * 2. DEFAULT is to use 2 byte storage precision. See rsl.h. * 3. Several changes to get_closest routines -- Flanigan. * *---------------------------------------------------------------------- * v0.35 Began 5/18/95. Froze 5/18/95. * * 1. Checks iazim validity in ray_indexes.c. Bad angles use to cause * core dumps. * 2. wsr88d_to_radar can handle bogus filenames and callid's. * *---------------------------------------------------------------------- * v0.34 Began 5/17/95. Froze 5/18/95. * * 1. Modified the bscan interface. * * 2. Fixed a minor nrays bookkeeping bug in radar_to_uf. * * 3. Updated Sweep searching routines. * * 4. Added get_closest and get_next_closest ray searching routines. * Updated RSL_get_ray_from_sweep so that it uses the * new_get_closest function. * *---------------------------------------------------------------------- * v0.33 Began 5/12/95. Froze 5/16/95. * * 1. Configure for building using 2 byte precision instead of 1 byte. * This should quell any accuracy problems associated with the * functions F and INVF. * * 2. Added 'RSL_mcgill_to_radar'. Link with -lmcgill. * * 3. Bug fix in cube.c, cappi.c, and carpi.c. *---------------------------------------------------------------------- * * v0.32 Began 5/5/95. Froze 5/12/95. * * 1. Compiles with -Wall -ansi -pedantic. * 2. Minor bug fixes in get_win.c * 3. Compiles on SGI, 486, SUN, HP using gcc or stock cc. *---------------------------------------------------------------------- * v0.31 Began 4/28/95. Froze 5/5/95. * * 1. Added ray_high and ray_low Azimuth_hash pointers * to Azimuth_hash data structure and code in the * the routine RSL_sweep_ray_indexes to set these * pointers. ray_low points to the Azimuth_hash * with the next lowest ray_angle, with ray_high * points to the next highest. * * 2. Created internal routine dir_angle_diff. Returns * negitive difference if the second angle in * the parameter list is counter-clockwise to the * first angle. Returns positive is second * angle is clockwise tk first angle. * * 3. Added internal routine the_closest_hash. This * routine returns the an Azimuth_hash * data structure that contains the closest * ray to the requested angle. * * 4. Added two routines: RSL_get_closest_ray_from_sweep and * RSL_get_next_closest_ray_from_sweep. * * 5. Added routines: RSL_get_window_from_radar, * RSL_get_window_from_volume, RSL_get_window_from_sweep, and * RSL_get_window_from_ray. * * 6. Modified farea.c. * 7. Isolated contruction of azimuth table linked list. * 8. Fixed get_sweep NULL sweep reference (See patch v0_29_3 also). * 9. Compiles on HP CC, SGI CC, GNU CC. I had to #ifdef the * varargs declaration in anyformat_to_radar.c. Why? * 10. Added examples/killer_sweep.c. This randomizes the azimuth * values of each ray. The output checks the sortedness of the * hi and low links in the hash table. * 11. Added doc/...closest... doc/...next_closest... * *------------------------------------------------------------------------- * v0.30 Began 4/20/95. Froze 4/27/95 * * 0. IMPORTANT: Renamed libradar.a to librsl.a. Also, radar.h to rsl.h. * 1. Removed NOTFOUND_H reference in the get_ray function. * 2. Simplified get_sweep. * 3. Uses within 1/2 beam_width test in get_ray_from_sweep. * 4. Checks -1 and +1 bin in azimuth hash table to really find the * closest ray that is within 1/2 beam_width of the target azim. * Surprisingly, it shortened the get_value_from_sweep routine. * * 5. Added anyformat_to_radar.c. Uses magic information to determine * the file format. Handles: UF, RSL, WSR88D, LASSEN. Toga may * be difficult. Unknown, yet, for NSIG. Alan will get me that * information. * 6. Added beam_width to the ray structure. *------------------------------------------------------------------------- * v0.29.1 Began 4/18/95. Froze 4/18/95. * * 1. Bug fix in endian.c. Needed to initialize the word.val to 0. * 2. Bug fix in radar_to_uf.c. little_endian() call. * 3. Added Azumuth_hash to structure list in doc/. * 4. Other minor changes. *------------------------------------------------------------------------- * v0.29 Began 3/1/94. Froze ??/??/?? * * 0. Thanks to Dennis Flanigan for helping with this release. * * 1. Modified sort_rays.c. By Dennis Flanigan, Jr. * a. Added h.sorted_flag to Volume and Sweep header structures. * * b. Added routines: * int ray_sort_compare_by_time(Ray **r1,Ray **r2); * int sweep_sort_compare(Sweep **s1, Sweep **s2) * Sweep *RSL_sort_rays_by_time(Sweep *s); * Volume *RSL_sort_sweeps_in_volume(Volume *v) * Volume *RSL_sort_volume(Volume *v) * Radar *RSL_sort_radar(Radar *r) * * c. Routines that sort data structures now set the * number of structures in the parent data structure. * * d. Fixed: nsweeps was not being set correctly by * RSL_sort_sweeps_in_volume. * * 2. Removed sort calls in the ingest routines: (whatever)_to_radar. * * 3. Removed the auxillary trig tables in image_gen.c. It's just a * memory hog. * * 4. Changed the extension of the tar archives to .tgz. This * allows netscape to ftp the file rather than displaying it :-) * * 5. Added variables in the sweep data structures to represent * the half of the beam width angles. These variables are * vert_half_bw and horz_half_bw. Also added code to all * RSL ingest routines (something_to_radar) to set these values. * The half angle values are used in the volume.c searching routines. * * 6. Added h.indexes to Sweep structure. This is a simple hash * table for making azimuth lookup cake. So far, I've only * got the malloc part placed in the routines that create the * radar structure. Added the file 'ray_indexes.c'. This changes * RSL_get_value_from_ray. * * Code affected: * Modify code: * RSL_copy... * RSL_free... * RSL_clear... * RSL_sort..??? really??? * RSL_get... * RSL_{write,read}_radar * RSL_get_ray??? * * Modify doc * RSL_sweep_struct.html * * 7. Updated doc/. * * 8. Added CHECK_LIST. * * 9. Changed the name from radar-v0.?? to rsl-v0.??. * * *------------------------------------------------------------------------- * v0.28 Began 7/23/94. Froze 2/16/95 * Changes: * * 1. Support for little endian machines (*86 PC's using Linux). * Includes 'endian.c' in 'uf_to_radar.c' and 'radar_to_uf'. It is not * needed in 'lassen.c' because that program uses xdr to transfer the * data. Nor is it required in 'wsr88d_to_radar.c', 'nsig_to_radar.c' * nor 'toga_to_radar.c' because the support for little endian is in * the respective libraries: libwsr88d.a, libnsig.a, libtg.a. * * Requires: * wsr88d_v1.12.taz * lassen_v1.0.taz * libnsig_v1.3.taz * libtg_v1.1.taz * * In order to make this library compatable with versions on either * big endian or little endian machines, it will be adopted that all * output will be in big endian format. Little endian machines will * have to do the extra work of swapping bytes upon input as well as * swapping bytes on output. I could adopt to use the xdr library, * however, it seems too complicated for the simple task of always * guarenteeing that the output is in big endian format. After all, * we only support one output format: UF. (Well, we will make our own * radar format output in big endian format too, but we keep that * knowledge hush hush). * * 2. Documentation in the seperate directory complete for all routines * in the RSL. Documentation froze at v0.27 and is in HTML format. * The documentation version number will be updated to match the version * number of the most current release of RSL. Note: The live link is * in /PUBLIC/httpd/htdocs/trmm_office/software/radar/quick_reference. * It is a symbolic link to ~/proj/trmm/radar/doc/v0.xx. * * 3. Added RSL_ prefix to all documentation. This renamed the HTML files * to begin with RSL_, also. * * 4. Prefixed all routines with RSL_. Status is that it builds. * 5. Combined radar.h, cube.h and volume.h into radar.h. * *------------------------------------------------------------------------- * v0.27 Began 7/23/94. Froze 9/13/94. * Changes: * * 1. Beam width calculation in get_value_from_sweep is not 1/2 on either * side. No provision for best fit. See WTD #2. * 2. Added sort_rays.c. Sort rays in a sweeps and volumes. * 3. Added Vset_earth_radius. Set global variable 'Re' (Default: 4/3R). * 4. Added trig modification of get_slantr_and_h. * 5. Added sort rays call to: toga_to_radar, wsr88d_to_radar, * uf_to_radar, lassen_to_radar. * 6. Added cube.c. By Mike Kolander. * 7. Added carpi.c * 8. Added toga_to_radar.c. By Mike Kolander. * 9. Signed all source files. * 10. Quieted some image print statements. See image_gen.c. * 11. Changed wsr88d_to_radar so it takes 'first_file' or the 4 character * call sign (eg. KMLB). * 12. Fixed makefile so it removes libradar.a before building. This prevents * duplicate object files, only the long filenamed ones, from * appearing in the archive file. * 13. Added gts.c. By Dave Wolff. * 14. Fixed minor round off error in 'uf_to_radar' which caused a 0 dBZ spike. * 15. Added histogram.c. By Dave Wolff. * 16. Added nsig_to_radar.c. By Alan McConnell. * * WTD: * * * 2. Vget_value_from_sweep. When the beam width is increased we * want to return the value that is the best fit for a ray and not * just the first fit. Currently when the beam width is really * large then we will pick the wrong beam for the desired point. * * 3. Add the following to the ray header: * - u,v for ray. * - offset for azim, range, elev (for moving radar) * - lat/lon (for moving radar) * * 4. Bilinear interpolation. * 6. Modify get_ray_above to return a good ray so that QC doesn't zap points * near the radar. * 7. Optimize/Improve the get_value routine. * 8. Remove V prefix to routine names? * 10. Fix why there are bands of missing data when making images. * 11. Specify resolution when making images. * 14. Update: doc's (in HTML), README, etc. * 16. NEED *TESTING* suite of programs. * * Proposed changes for v0.28 * 1. Add support for little endian machines (386, 486, etc.) * 2. F(x, DZ) or ray->f.dz(x). I.e., object function conversion functions. * * *------------------------------------------------------------------------- * v0.26 Began 7/23/94. * Changes: * 1. Adding cappi_to_carpi. * 2. Enhanced the Cappi structure; not the same as a sweep anymore. * *------------------------------------------------------------------------- * v0.26 Began 7/13/94. Froze 7/20/93. * Changes: * 1. Units for wavelength, in radar_to_uf, changed from meters to cm; * as they should be. * 2. Library runs quietly. No noisy print statements. Call * radar_verbose_on() and radar_verbose_off() to control printing. *------------------------------------------------------------------------- * v0.25 Began 7/1/94. Froze 7/1/94 * Changes: * 1. Modifications to makefile to add portibility to building on * other systems w/o gcc. Change to CFLAGS. * 2. Passes lint. * 3. Moved documents radar.ez and volume.ez to ../doc (../doc_RCS). * This means that the version of the documentation will not be kept * up to the version of the RSL library. Only changes to the doc. will * force a new version of the documentation. I'll want to see if this * is a good idea. *------------------------------------------------------------------------- * v0.24 Began 6/29/94. Froze 6/29/94 * Changes: * 1. radar_to_uf, uf_to_radar. Fixed inconsistant use of BADVAL vs. * UF_NO_DATA. The latter is check and used. * 2. Added function: * float get_nyquist_from_radar(Radar *radar); * Useful, for loading non-velocity fields with PRF, PRT and NYQUIST. * 3. Made the makefile more general and added comments. * * WTD: * 1. Modify wsr88d_to_radar to fill PRF, PRT and NYQUIST values in * non-velocity rays. *------------------------------------------------------------------------- * v0.23 Began 6/27/94. Froze 6/27/94 * Changes: * 1. First distribution release. * 2. Added README w/ installation instructions. * 3. Made example_main and colors directories. * 4. Shortened lassen.h to be close to minimial. * 5. Modified makefile to only make libradar.a. Example_main/ has it's * own makefile. *------------------------------------------------------------------------- * v0.22 Began 6/24/94. Froze 6/24/94 * Changes: * 1. radar_to_uf/uf_to_radar PRF/PRT calculation corrected. * *------------------------------------------------------------------------- * v0.21 Began 6/24/94. Froze 6/24/94 * Changes: * 1. radar_to_uf: prf now in microseconds. * 2. uf_to_radar: prf now converted from microseconds to seconds. * *------------------------------------------------------------------------- * v0.20 * Changes: * Need to determine the changes. *------------------------------------------------------------------------- * v0.19 Began 6/17/94. Froze: 6/17/94. * Changes: * 1. Fixed NULL access in write_radar subroutine. * *------------------------------------------------------------------------- * v0.19 Began 6/15/94. Froze: 6/15/94. * Changes: * 1. Check for NULL in Vget_ray_from_sweep fixes a segmentation fault on * Sun. *------------------------------------------------------------------------- * v0.18 Began 6/11/94. Froze: 6/12/94 2pm. * Changes: * 1. Minor changes in volume.c. Vget_value_from_sweep now uses the * beam_width for matching rays. See Vget_sweep too. * 2. cappi.c sets the beam_width. * 3. Added radar types. There is no sure fire way to set * radar->h.radar_type to one of these values automatically, ie. from * information in the input file. It may have to be done by the * application; a runtime parameter, option. * Types are: * TOGACOARE_TOGA_SIGMET * TOGACOARE_MIT_SIGMET * TRMM_DARWIN_LASSEN * DARWIN_TOGA_SIGMET * TRMM_MELBOURNE_WSR88D * TRMM_KWAJALEIN_SIGMET * TRMM_HOUSTON_WSR88D * 4. Added function: * Sweep *Vget_first_sweep_of_volume(Volume *v); * 5. Placed the wsr88d code in wsr88d_to_radar.c (removed from radar.c). * * WORK TO DO: * 1. Rework Vget_value_from_sweep to do a better search for the value. * *------------------------------------------------------------------------- * v0.17 Began 6/10/94. Froze 6/10/94 3:30pm. * Changes: * 1. Corrected the pulse width calculation in uf_to_radar and in * radar_to_uf. *------------------------------------------------------------------------- * v0.16 Began 6/10/94. Froze 6/10/94 12:30pm. * Changes: * 1. Minor changes to radar.c because v1.3 of the wsr88d library is * now using WSR88D_DZ, WSR88D_VR, WSR88D_SW as the field type mask. * REFLECTIVITY, VELOCITY and SPECTRUM_WIDTH are not used. * *------------------------------------------------------------------------- * v0.15 Began 6/7/94. Froze 6/7/94 1pm. * Changes: * 1. Discovered that the range to bin1 calculation in radar_to_uf.c and * uf_to_radar.c was incorrect. See fh[2] and fh[3]. * *------------------------------------------------------------------------- * v0.14 Began 6/2/94. Froze 6/2/94 1pm. * Changes: * 1. Modified the date for the Radar structure for UF reading to reflect * the time of the first ray. It was the generation time of the radar * structure, however, Dave Wolff insists that it reflect the time of * the first ray. Modification to 'uf_to_radar.c' * *------------------------------------------------------------------------- * v0.13 Began 6/2/94. Froze 6/2/94 11am. * Changes: * 1. Modified radar_to_uf.c to undo the faking of the headers. This is * the correct way. * *------------------------------------------------------------------------- * v0.12 Began 5/31/94. Froze 5/31/94 7pm. * Changes: * 1. Check for malloc errors in Vnew* routines. * 2. Fixed a nasty bug in radar_to_uf. I was letting 'j' get to high * for a particular ray in a sweep. 'j' is looping on the maximum * rays possible. I noticed this bug only after Vcopy_volume to * replace a radar->v[i]. *------------------------------------------------------------------------- * v0.11 Began 5/27/94. Froze 5/27/94 12:50pm. * Changes: * 1. Modified radar_to_uf.c to fake header information when fields do * exist, eventually, but not in the current sweep. This is to allow * brain dead UF ingestors (Zeb, RDSS, etc.) to read the UF file; they * assume that whatever fields exist in the first UF sweep is constant * throughout the file. * * 2. Added functions to volume.c * Ray *Vget_first_ray_of_sweep(Sweep *s); * Ray *Vget_first_ray_of_volume(Volume *v); * *------------------------------------------------------------------------- * v0.10 Began 5/26/94. Froze 5/27/94 9am. * Changes: * 1. Modified the names of the INDEX and MASK variables. * * ZT Total Reflectivity (dBZ) ZT_INDEX * May be uncommon, but important * * DZ Reflectivity (dBZ), may contain some DZ_INDEX * signal-processor level QC and/or * filters. This field would contain * Darwin's CZ, or WSR88D's standard * reflectivity. In other words, unless * the field is described otherwise, it * should always go here. In essence, this * is the "cleanest" reflectivity field * for a radar. * * DR Differential reflectivity DR_INDEX * DR and LR are for dual-polarization * radars only. Unitless or in dB. * * LR Another form of differential ref LR_INDEX * called LDR, not sure of units * * CZ QC Reflectivity (dBZ), contains * post-processed QC'd data CZ_INDEX * * VR Radial Velocity (m/s) VR_INDEX * * SW Spectral Width (m2/s2) SW_INDEX * * 2. Fixed some MAX_RADAR_VOLUMES references in the wsr88d_to_radar code. * *------------------------------------------------------------------------- * v0.9 Began 5/25/94. Froze: 5/26/94, 10am. * Changes: * 1. Added lassen_to_radar.c * 2. Added lassen.h * *------------------------------------------------------------------------- * v0.8 Began 5/23/94. Froze: 5/24/94, 10am. * Changes: * 1. F and INVF handle APFLAG. * 2. Image generation creates unsigned char images. * 3. 255-val for negative dBz (val < 0). * *------------------------------------------------------------------------- * v0.7 Began 4/30/94. Froze: 5/20/94. * * Changes: * * 1. Uses char storage for data values, to reduce RAM allocation. * * 2. F(x) ((x-2)/2. - 64.) * 0 is for BADVAL. Bad value. * 1 is for RFVAL. Range folded. * * 3. Added functions: * Vfloat_to_char(float *x, unsigned char *c, int n); * float F(unsigned char c); * unsigned char INVF(float x); -- Inverse of F. * Radar *uf_to_radar(char *infile); * void radar_to_uf(Radar *radar, char *outfile); * * 4. Minor bug fix in wsr88d_to_radar routine. It was setting the * number of volumes to six even though we were only asking for 3. * * 5. Changed the value of BADVAL to 0500 (Octal 500). This is * a value higher than 255 (the maximum byte value) but small enough * to that when a scale factor (typically 100) is applied, the result * does not exceed the I*2 (short) magnitude. I needed this for the * UF programs. I could have tested for BADVAL, RFVAL, etc., and not * applied a scale factor when loading the UF buffer, however, changing * BADVAL and scaling everything was more general. * * 6. Made some slight modifications to the Radar header and Volume header. * *------------------------------------------------------------------------- * v0.6 Began 4/16/94. Froze: 4/30/94. * * Changes: * * 1. Azimuth angles range from -180,180 to 0,360. * 2. New color index binning function for velocity. -nyquist,nyquist * using 15 bin values. See Vrebin_velocity_sweep. * 3. Added the following routines: * * Memory management. * Ray *Vcopy_ray(Ray *r); * Sweep *Vcopy_sweep(Sweep *s); * Volume *Vcopy_volume(Volume *v); * Radar *clear_radar(Radar *r); * void Vget_groundr_and_h(float slant_r, float elev, float *gr, float *h); * void Vget_slantr_and_elev(float gr, float h, float *slant_r, float *elev); * void Vget_slantr_and_h(float gr, float elev, float *slant_r, float *h); * * Image generation preparation. * void Vrebin_velocity_ray (Ray *r); /* Modifies r */ * void Vrebin_velocity_sweep (Sweep *s); /* Modifies s */ * void Vrebin_velocity_volume(Volume *v); /* Modifies v */ * * Color table functions. * void load_red_table(char *infile); * void load_green_table(char *infile); * void load_blue_table(char *infile); * * 4. Added 4/3Re calculation to Vget_slantr_and_elev and Vget_groundr... * 5. Checked for null in the Vclear routines. * *------------------------------------------------------------------------- * v0.5 Began 4/7/94 * * Changes: * * 1. Color table functions taken out of the image routines. * You must call load_refl_table(), load_vel_table(), load_sw_table() * to load the appropriate color table before making color images. * There are seperate color tables for R, V, S. See volume.h. * * 2. Range is now used in Vsweep_to_cart. * 3. Gate size (pixel resolution in km) is now used. * 4. Added range to cappi_at_h function. It is the effective range. * 5. Added the following routines: * * Read radar from disk. * Ray *read_ray (FILE *fp); * Sweep *read_sweep (FILE *fp); * Volume *read_volume(FILE *fp); * Radar *read_radar (char *infile); * * Write radar to disk * int write_ray (Ray *r, FILE *fp); * int write_sweep (Sweep *s, FILE *fp); * int write_volume(Volume *v, FILE *fp); * int write_radar (Radar *r, char *outfile); * * Area calculations * float Varea_of_ray(Ray *r, float lo, float hi, float range); * float Vfractional_area_of_sweep(Sweep *s, float lo, float hi, float range); * * Pixel fractions * Vfraction_of_ray(Ray *r, float lo, float hi, float range); * Vfraction_of_sweep(Sweep *s, float lo, float hi, float range); * Vfraction_of_volume(Volume *v, float lo, float hi, float range); * * * 6. radar.c calls wsr88d_get_site to get additional wsr88d information * not included in the file. Routines compliments of Dan Austin. * 7. Added RFVAL. Range Folded value. Any base data value of 0 is * data below SNR thresholds set for that specific base data. Any * data value of 1 is data considered range ambiguous (folded). * A color table entry needs to be picked to represent this value. * * To do: * o I have to do something about MAX_RADAR_VOLUMES. We really should * rely on radar->h.nvolumes; * * o Add 4/3Rearth calculation to get value routines. * o Incorporate nsig_to_radar. Dennis Flanigan is writing that interface. * o Add fraction of area function. * o Add the following functions: ??? really ??? * Sweep *Vget_closest_sweep(Volume *v, float elev); * Ray *Vget_closest_ray(Sweep *s, float azim); * float Vget_closest_value_in_beam(Ray *ray, float range); * float Vget_closest_value(Ray *ray, float range); * (I'm not sure how this will be different than Vget_value) * * o Sort the rays so locating azimuth is trivial; instead of a search * algorithm as it is now. Hey, would a binary search be good enough or * do we need some hashing function? Is the lookup fast enough already? * o Add CAPPI at h. (Option for bilinear interpolation about h). *------------------------------------------------------------------------- * v0.4 Began 3/23/94 Froze: 4/7/94 * * Changes: * * 1. Made Sweep (sweep) and Ray (ray) members an array of pointers. * This changes the syntax of the access to be * v->sweep[is]->ray[ir]->range[ibin] instead of * v.sweep[is].ray[ir].range[ibin]. The benifit of this is to * be able to dynamically specify the number of sweeps or rays, * even volumes for the Radar structure, and not allocate a maximum. * This makes Vnew_sweep and Vnew_ray useful. * * 2. Added the following functions: * Volume *Vget_volume(Radar *r, int itype); * itype = REFLECTIVITY, VELOCITY, or SPECTRUM_WIDTH, etc. * * Sweep *Vget_sweep(Volume *v, float theta); * Ray *Vget_ray (Volume *v, float theta, float azimuth); * float Vget_value(Volume *v, float theta, float azimuth, float range); * Ray *Vget_ray_from_sweep(Sweep *s, float azimuth, float range); * float Vget_value_from_sweep(Sweep *s, float azimuth, float range); * float Vget_value_from_ray(Ray *r, float range); * float Vget_value_at_h(Volume *v, float azim, float grnd_r, float h); * * Ray *QC_ray (Ray *ray, int radar_type); * Sweep *QC_sweep (Sweep *sweep, int radar_type); * Volume *QC_volume(Volume *volume, int radar_type); * * Radar *QC_radar (Radar *radar); * * void write_gif(char *outfile, char *image, int xdim, int ydim, char c_table[256][3]); * void write_pict(char *outfile, char *image, int xdim, int ydim, char c_table[256][3]); * char *Vsweep_to_cart(Sweep *s, int xdim, int ydim, float range); * void Vsweep_to_gif(Sweep *s, char *outfile, int xdim, int ydim, float range); * void Vsweep_to_pict(Sweep *s, char *outfile, int xdim, int ydim, float range); * void Vvolume_to_gif(Volume *v, char *basename, int xdim, int ydim, float range); * char *Vsweep_to_cart( * 3. When a sweep does not have any rays with any bins, then NULL is * assigned to that Sweep pointer. This occurs for reflectivity for * the 2-nd sweep index (as defined by the data) where the is no * reflectivity data, only doppler and spectrum width. Velocity and * spectrum width data do not exist for sweep number 1 (index 0). * * 4. Speed ups in Vto_cart_sweep. Math is precomputed and saved in * arrays for faster lookup. Still the ppmtogif is a snail and it * overwhelms the runtime. I only saw a 35 second improvment with * these new arrays when outputting 20 gif images. I think the -O * compile flag is doing a good job. * * 5. Added CAPPI at h. Routine in cappi.c. Cappi type is syntatically * identical to the Sweep type. * * Cappi *cappi_at_h(Volume *v, float h); * * 6. Make builds libradar.a which contains radar.c, volume.c, cappi.c and * image_gen.c. Builds on SGI, SUN and HP. * * 7. Add QC routines. See 2. above for the list. Currently they are * place holding functions with only QC_ray needing to be coded. * Paul Kucera will take care of that. * * 8. Improvments to radar.ez and volume.ez. * * To do: * o Add the following functions: * Sweep *Vget_closest_sweep(Volume *v, float elev); * Ray *Vget_closest_ray(Sweep *s, float azim); * float Vget_closest_value_in_beam(Ray *ray, float range); * float Vget_closest_value(Ray *ray, float range); * (I'm not sure how this will be different than Vget_value) * * o Add range resolution to the image generation subroutines. * o Add range resolution to all the 'get_value' routines. * o Sort the rays so locating azimuth is trivial; instead of a search * algorithm as it is now. Hey, would a binary search be good enough or * do we need some hashing function? It the lookup fast enough already? * o Add CAPPI at h. (Option for bilinear interpolation about h). * *------------------------------------------------------------------------- * v0.3 Began 3/22/94 Froze 3/23/94. * * Changes: * 1. Implimented the Radar structure. The heart of it is an array of * Volume pointers. * 2. Using 'data_mask' which is a bitwise ( | operator in C ) of * REFL_MASK, VEL_MASK, or SW_MASK, you can get any field type volume: * reflectivity, doppler velocity, or spectrum width respectively. * 3. Load volume, sweep and ray header information. * 4. Added Radar header information; need a good definition of say date and * time. * * Work to do: * - Improve carteasean image generation. * Input: radar range, pix_width, pix_height. No distortion. * - Need to specify the output GIF filename as options. * - Incorporate Vto_fraction (?? name ??) Dave's new function. *------------------------------------------------------------------------- * v0.2 Began 3/21/94 Froze 3/22/94. * * I am freezing this here because both BSCAN and CARTESEAN image generation * works. You have to hand edit the source to restrict the number of * Sweeps that are converted to images, currently only sweep 0. The inclusion * of sweep/ray header information and the collection of doppler and spectrum * width data requires substantial effort and will be in the next version. * This version freeze is a check point. * * Changes: * 1. Name rsphere change to volume. * 2. File rsphere.c changed to volume.c. (Moved the RCS file rsphere.c,v * to the graveyard directory in RCS/ * 3. Added color gif support. Reads red.clr, green.clr, blue.clr files. * This renamed the Vto_cart_pgm function to Vto_cart_gif. It is likely * that ppm support is not needed. We'll see. * 4. Fixes minor glitches in output images where the tan is undefined. * 5. Added BSCAN production as GIF files. * 6. Output sweep.xx file names; sweep.00.gif, etc. and bscan.00.gif too. * * Work to do: * - Add routines to get volumes for doppler and spectrum width. (Radar lib?) * - Improve carteasean image generation. * Input: radar range, pix_width, pix_height. No distortion. * - Add sweep header information. * - Need to specify the output GIF filename as options. * - Incorporate Vto_fraction (?? name ??) Dave's new function. * *------------------------------------------------------------------------- *v0.1 3/21/94 by John Merritt. * 1. First development version of the radar and rsphere library. * Includes test driver. radar.ez and rsphere.ez document the * functionality of the programs. This version exists to check point * the development. *------------------------------------------------------------------------- */