+++ /dev/null
-/*
- * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef __GIS_WORLD_H__
-#define __GIS_WORLD_H__
-
-#include <glib-object.h>
-
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
-#define EARTH_R (6371000)
-#define EARTH_C (2*M_PI*EARTH_R)
-
-/**
- * Terms
- * -----
- * deg - Degrees
- * rad - Radians, also radius
- * m - Meters, for earth-based distances
- * px - Pixels, for screen-based distances
- *
- * height - Height, the distance above the geoid (ground)
- * elev - Elevation, the distance above the spheroid
- * rad - Radius, the distance from the center of the earth
- *
- * lat - Latitude, amount north-south, -90 (S) .. 90 (N)
- * lon - Longitude, amount east-west, -180 (W) .. 180 (E)
- * incl - Inclination, polar equiv of latitude, Pi .. 0
- * azim - Azimuth, polar equiv of longitude, -Pi .. Pi
- *
- * x - 0° lon is positive
- * y - 90° lon is positive
- * z - North pole is positive
- *
- * llh - lat,lon,height
- * lle - lat,lon,elev
- * llr - lat,lon,rad
- * pol - incl,azim,rad
- * xyz - x,y,z
- */
-
-/**
- * lat lon elev -> x y z
- * lle2xyz: 0.0, 0.0, 0.0 -> 0.0, 0.0, 10.0
- * lle2xyz: 90.0, 0.0, 0.0 -> 0.0, 10.0, 0.0
- * lle2xyz: 0.0, 90.0, 0.0 -> 10.0, 0.0, 0.0
- *
- * x y z -> lat lon elev
- * xyz2lle: 10.0, 0.0, 0.0 -> 0.0, 90.0, 0.0
- * xyz2lle: 0.0, 10.0, 0.0 -> 90.0, 0.0, 0.0
- * xyz2lle: 0.0, 0.0, 10.0 -> 0.0, 0.0, 0.0
- */
-
-#define azim2lon(azim) ((azim)*180/M_PI)
-#define lon2azim(lon) ((lon)*M_PI/180)
-#define incl2lat(incl) (90-(incl)*180/M_PI)
-#define lat2incl(lat) ((90-(lat))*M_PI/180)
-#define rad2elev(rad) ((rad)-EARTH_R)
-#define elev2rad(elev) ((elev)+EARTH_R)
-
-#define deg2rad(deg) (((deg)*M_PI)/180.0)
-#define rad2deg(rad) (((rad)*180.0)/M_PI)
-
-#define FOV_DIST 2000.0
-#define MPPX(dist) (4*dist/FOV_DIST)
-
-void lle2xyz(gdouble lat, gdouble lon, gdouble elev,
- gdouble *x, gdouble *y, gdouble *z);
-
-void xyz2lle(gdouble x, gdouble y, gdouble z,
- gdouble *lat, gdouble *lon, gdouble *elev);
-
-gdouble ll2m(gdouble lon_dist, gdouble lat);
-
-gdouble distd(gdouble *a, gdouble *b);
-
-/************
- * GisWorld *
- ************/
-#define GIS_TYPE_WORLD (gis_world_get_type())
-#define GIS_WORLD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GIS_TYPE_WORLD, GisWorld))
-#define GIS_IS_WORLD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GIS_TYPE_WORLD))
-#define GIS_WORLD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIS_TYPE_WORLD, GisWorldClass))
-#define GIS_IS_WORLD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIS_TYPE_WORLD))
-#define GIS_WORLD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIS_TYPE_WORLD, GisWorldClass))
-
-typedef struct _GisWorld GisWorld;
-typedef struct _GisWorldClass GisWorldClass;
-
-struct _GisWorld {
- GObject parent_instance;
-
- /* instance members */
- gboolean offline;
-};
-
-struct _GisWorldClass {
- GObjectClass parent_class;
-
- /* class members */
-};
-
-GType gis_world_get_type(void);
-
-/* Methods */
-GisWorld *gis_world_new();
-
-void gis_world_refresh(GisWorld *world);
-
-void gis_world_set_offline(GisWorld *world, gboolean offline);
-gboolean gis_world_get_offline(GisWorld *world);
-
-#endif
projects / aweather / blobdiff