Add Blue Marble Next Gen plugin and tile rendering code

[grits] / src / roam.h

diff --git a/src/roam.h b/src/roam.h
index c4a08987456dfb2d329816c5bd36ef37c8e75e4f..94b205f18e45cbad6346c4523c23244796dc34cf 100644 (file)
--- a/src/roam.h
+++ b/src/roam.h
@@ -19,7 +19,6 @@
 #define __ROAM_H__
 
 #include "gpqueue.h"
-#include "wms.h"
 
 /* Roam */
 typedef struct _RoamView     RoamView;
@@ -27,7 +26,7 @@ typedef struct _RoamPoint    RoamPoint;
 typedef struct _RoamTriangle RoamTriangle;
 typedef struct _RoamDiamond  RoamDiamond;
 typedef struct _RoamSphere   RoamSphere;
-typedef void (*RoamHeightFunc)(RoamPoint *point, gpointer user_data);
+typedef gdouble (*RoamHeightFunc)(gdouble lat, gdouble lon, gpointer user_data);
 
 /* Misc */
 struct _RoamView {
@@ -48,12 +47,17 @@ struct _RoamPoint {
        gint     tris;      // Associated triangles
        gdouble  norm[3];   // Vertex normal
 
-       WmsCacheNode *node; // TODO: don't depend on wms
+       /* For get_intersect */
+       gdouble  lat, lon;
+
+       /* For terrain */
+       RoamHeightFunc height_func;
+       gpointer       height_data;
 };
 RoamPoint *roam_point_new(double x, double y, double z);
 void roam_point_add_triangle(RoamPoint *point, RoamTriangle *triangle);
 void roam_point_remove_triangle(RoamPoint *point, RoamTriangle *triangle);
-void roam_point_update_height(RoamPoint *point, RoamSphere *sphere);
+void roam_point_update_height(RoamPoint *point);
 void roam_point_update_projection(RoamPoint *point, RoamSphere *sphere);
 
 /****************
@@ -68,7 +72,9 @@ struct _RoamTriangle {
        double error;
        GPQueueHandle handle;
 
-       WmsCacheNode *nodes[5]; // TODO: don't depend on wms
+       /* For get_intersect */
+       struct { gdouble n,s,e,w; } edge;
+       RoamTriangle *kids[2];
 };
 RoamTriangle *roam_triangle_new(RoamPoint *l, RoamPoint *m, RoamPoint *r);
 void roam_triangle_add(RoamTriangle *triangle,
@@ -105,17 +111,20 @@ struct _RoamSphere {
        GPQueue *triangles;
        GPQueue *diamonds;
        RoamView *view;
-       RoamHeightFunc height_func;
-       gpointer user_data;
        gint polys;
+
+       /* For get_intersect */
+       RoamTriangle *roots[8];
 };
-RoamSphere *roam_sphere_new(gpointer user_data);
+RoamSphere *roam_sphere_new();
 void roam_sphere_update_errors(RoamSphere *sphere);
 void roam_sphere_split_one(RoamSphere *sphere);
 void roam_sphere_merge_one(RoamSphere *sphere);
 gint roam_sphere_split_merge(RoamSphere *sphere);
 void roam_sphere_draw(RoamSphere *sphere);
 void roam_sphere_draw_normals(RoamSphere *sphere);
+GList *roam_sphere_get_intersect(RoamSphere *sphere,
+               gdouble n, gdouble s, gdouble e, gdouble w);
 void roam_sphere_free(RoamSphere *sphere);
 
 #endif