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-rw-r--r--src/map.c130
1 files changed, 79 insertions, 51 deletions
diff --git a/src/map.c b/src/map.c
index 23ffcb3..97e7ccf 100644
--- a/src/map.c
+++ b/src/map.c
@@ -72,66 +72,63 @@ static void map_init_location_hash(map_t* pMap);
static void map_store_location(map_t* pMap, location_t* pLocation, gint nLocationSetID);
static void map_data_clear(map_t* pMap);
-void map_get_render_metrics(map_t* pMap, rendermetrics_t* pMetrics);
+void map_get_render_metrics(const map_t* pMap, rendermetrics_t* pMetrics);
gdouble map_get_straight_line_distance_in_degrees(mappoint_t* p1, mappoint_t* p2);
-// Each zoomlevel has a scale and an optional name (name isn't used for anything)
+// Each zoomlevel has a scale (XXX: this should really be in an XML file)
zoomlevel_t g_sZoomLevels[NUM_ZOOM_LEVELS] = {
- // 1.166144850000 magic number for 2000-80000 in 25 steps. (each scale is previous * this #)
- // 1.181891000000 magic number for 2000-1,600,000 in 41 steps (11 major with 3 minor in between)
+ {150000000, UNIT_MILES,3000,UNIT_KILOMETERS,4000, 1, 3}, // *1
+ {123000000, UNIT_MILES,3000,UNIT_KILOMETERS,4000, 1, 3}, // 2
+ { 96000000, UNIT_MILES,2000,UNIT_KILOMETERS,2000, 1, 3}, // 3
+ { 69000000, UNIT_MILES,2000,UNIT_KILOMETERS,2000, 1, 3}, // 4
- {150000000, UNIT_MILES,2000,UNIT_KILOMETERS,2000, 1, 3}, // *1
- {123000000, UNIT_MILES,1000,UNIT_KILOMETERS,48, 1, 3}, // 2
- { 96000000, UNIT_MILES,500, UNIT_KILOMETERS,48, 1, 3}, // 3
- { 69000000, UNIT_MILES,200, UNIT_KILOMETERS,48, 1, 3}, // 4
+ { 42000000, UNIT_MILES,1000,UNIT_KILOMETERS,1000, 1, 3}, // *5
+ { 35000000, UNIT_MILES,1000,UNIT_KILOMETERS,1000, 1, 3}, // 6
+ { 28000000, UNIT_MILES,500,UNIT_KILOMETERS,500, 1, 3}, // 7
+ { 21000000, UNIT_MILES,500,UNIT_KILOMETERS,500, 1, 3}, // 8
- { 42000000, UNIT_MILES,100, UNIT_KILOMETERS,24, 1, 3}, // *5
- { 35000000, UNIT_MILES,50, UNIT_KILOMETERS,24, 1, 3}, // 6
- { 28000000, UNIT_MILES,20, UNIT_KILOMETERS,24, 1, 3}, // 7
- { 21000000, UNIT_MILES,10, UNIT_KILOMETERS,24, 1, 3}, // 8
-
- { 14000000, UNIT_MILES,10, UNIT_KILOMETERS,12, 2, 3}, // *9
- { 11600000, UNIT_MILES,10, UNIT_KILOMETERS,12, 2, 3}, // 10
- { 9200000, UNIT_MILES, 5, UNIT_KILOMETERS, 7, 2, 3}, // 11
- { 6800000, UNIT_MILES, 5, UNIT_KILOMETERS, 7, 2, 3}, // 12
+ { 14000000, UNIT_MILES,10, UNIT_KILOMETERS,12, 2, 2}, // *9
+ { 11600000, UNIT_MILES,10, UNIT_KILOMETERS,12, 2, 2}, // 10
+ { 9200000, UNIT_MILES, 5, UNIT_KILOMETERS, 7, 2, 2}, // 11
+ { 6800000, UNIT_MILES, 5, UNIT_KILOMETERS, 7, 2, 2}, // 12
{ 4400000, UNIT_MILES, 5, UNIT_KILOMETERS, 7, 3, 2}, // *13
{ 3850000, UNIT_MILES, 5, UNIT_KILOMETERS, 7, 3, 2}, // 14
{ 3300000, UNIT_MILES, 5, UNIT_KILOMETERS, 7, 3, 2}, // 15
{ 2750000, UNIT_MILES, 5, UNIT_KILOMETERS, 7, 3, 2}, // 16
- { 2200000, UNIT_MILES, 2, UNIT_KILOMETERS, 2, 4, 2}, // *17
- { 1832250, UNIT_MILES, 2, UNIT_KILOMETERS, 2, 4, 2}, // 18
- { 1464500, UNIT_MILES, 2, UNIT_KILOMETERS, 2, 4, 2}, // 19
- { 1100000, UNIT_MILES, 2, UNIT_KILOMETERS, 2, 4, 2}, // 20
-
- { 729000, UNIT_MILES, 2, UNIT_KILOMETERS, 2, 5, 1}, // *21
- { 607500, UNIT_MILES, 1, UNIT_KILOMETERS, 1, 5, 1}, // 22
- { 486000, UNIT_MILES, 1, UNIT_KILOMETERS, 1, 5, 1}, // 23
- { 364500, UNIT_MILES, 1, UNIT_KILOMETERS, 1, 5, 1}, // 24
-
- { 243000, UNIT_MILES, 1, UNIT_KILOMETERS, 1, 6, 1}, // *25
- { 202500, UNIT_FEET, 3000,UNIT_METERS, 500, 6, 1}, // 26
- { 162000, UNIT_FEET, 2000,UNIT_METERS, 500, 6, 1}, // 27
- { 121500, UNIT_FEET, 2000,UNIT_METERS, 500, 6, 1}, // 28
-
- { 81000, UNIT_FEET, 2000,UNIT_METERS, 300, 7, 0}, // *29
- { 67500, UNIT_FEET, 2000,UNIT_METERS, 300, 7, 0}, // 30
- { 54000, UNIT_FEET, 2000,UNIT_METERS, 300, 7, 0}, // 31
- { 40500, UNIT_FEET, 1000,UNIT_METERS, 200, 7, 0}, // 32
-
- { 27000, UNIT_FEET, 1000,UNIT_METERS, 200, 8, 0}, // *33
- { 22500, UNIT_FEET, 1000,UNIT_METERS, 200, 8, 0}, // 34
- { 18000, UNIT_FEET, 1000,UNIT_METERS, 200, 8, 0}, // 35
- { 13500, UNIT_FEET, 500, UNIT_METERS, 100, 8, 0}, // 36
-
- { 9000, UNIT_FEET, 500, UNIT_METERS, 100, 9, 0}, // *37
- { 7500, UNIT_FEET, 500, UNIT_METERS, 100, 9, 0}, // 38
- { 6000, UNIT_FEET, 300, UNIT_METERS, 50, 9, 0}, // 39
- { 4500, UNIT_FEET, 300, UNIT_METERS, 50, 9, 0}, // 40
-
- { 3000, UNIT_FEET, 300, UNIT_METERS, 50, 10, 0}, // *41
+ { 2200000, UNIT_MILES, 8, UNIT_KILOMETERS, 5, 4, 1}, // *17
+ { 1832250, UNIT_MILES, 8, UNIT_KILOMETERS, 5, 4, 1}, // 18
+ { 1464500, UNIT_MILES, 8, UNIT_KILOMETERS, 5, 4, 1}, // 19
+ { 1100000, UNIT_MILES, 8, UNIT_KILOMETERS, 5, 4, 1}, // 20
+
+ { 729000, UNIT_MILES,10, UNIT_KILOMETERS, 8, 5, 1}, // *21
+ { 607500, UNIT_MILES,10, UNIT_KILOMETERS, 8, 5, 1}, // 22
+ { 486000, UNIT_MILES,10, UNIT_KILOMETERS, 8, 5, 1}, // 23
+ { 364500, UNIT_MILES,10, UNIT_KILOMETERS, 8, 5, 1}, // 24
+
+ { 243000, UNIT_MILES, 5, UNIT_KILOMETERS, 4, 6, 1}, // *25
+ { 209750, UNIT_MILES, 5, UNIT_KILOMETERS, 4, 6, 1}, // 26
+ { 176500, UNIT_MILES, 5, UNIT_KILOMETERS, 4, 6, 1}, // 27
+ { 143250, UNIT_MILES, 5, UNIT_KILOMETERS, 4, 6, 1}, // 28
+
+ { 110000, UNIT_MILES, 2, UNIT_KILOMETERS,2, 7, 0}, // *29
+ { 89250, UNIT_MILES, 2, UNIT_KILOMETERS,2, 7, 0}, // 30
+ { 68500, UNIT_MILES, 2, UNIT_KILOMETERS,2, 7, 0}, // 31
+ { 47750, UNIT_MILES, 2, UNIT_KILOMETERS,2, 7, 0}, // 32
+
+ { 27000, UNIT_FEET, 2000,UNIT_METERS, 500, 8, 0}, // *33
+ { 22500, UNIT_FEET, 2000,UNIT_METERS, 500, 8, 0}, // 34
+ { 18000, UNIT_FEET, 2000,UNIT_METERS, 500, 8, 0}, // 35
+ { 13500, UNIT_FEET, 2000,UNIT_METERS, 500, 8, 0}, // 36
+
+ { 9000, UNIT_FEET, 500, UNIT_METERS, 200, 9, 0}, // *37
+ { 7500, UNIT_FEET, 500, UNIT_METERS, 200, 9, 0}, // 38
+ { 6000, UNIT_FEET, 500, UNIT_METERS, 200, 9, 0}, // 39
+ { 4500, UNIT_FEET, 500, UNIT_METERS, 200, 9, 0}, // 40
+
+ { 3000, UNIT_FEET, 200, UNIT_METERS, 50, 10, 0}, // *41
};
#define MIN_ZOOMLEVEL_FOR_LOCATIONS (6)
@@ -152,6 +149,8 @@ gchar* g_apszMapObjectTypeNames[] = { // XXX: would be nice to remove this. alth
"urban-areas",
};
+gchar* g_apszMapRenderTypeNames[] = {"lines", "polygons", "line-labels", "polygon-labels", "fill", "locations", "location-labels"};
+
// ========================================================
// Init
// ========================================================
@@ -295,6 +294,29 @@ guint32 map_get_zoomlevel_scale(const map_t* pMap)
return g_sZoomLevels[pMap->uZoomLevel-1].uScale; // returns "5000" for 1:5000 scale
}
+gdouble map_get_altitude(const map_t* pMap, EDistanceUnits eUnit)
+{
+ g_warning("broken function :)\n");
+
+ g_assert(eUnit == UNIT_MILES);
+
+ // How high are we off the ground?
+
+ // x = sqrt((SCALE*sqrt(1.25))^2 - (SCALE/2)^2)
+
+// gdouble fScale = (gdouble)(g_sZoomLevels[pMap->uZoomLevel-1].uScale);
+
+ rendermetrics_t renderMetrics = {0};
+ map_get_render_metrics(pMap, &renderMetrics);
+
+ gdouble fBase = renderMetrics.fScreenLatitude;
+ gdouble fEyeToTopOfScreen = sqrt( WORLD_FEET_TO_DEGREES(1) + 1 );
+
+ gdouble fDistanceInDegrees = sqrt(((fBase * fEyeToTopOfScreen)*(fBase * fEyeToTopOfScreen)) - ((fBase/2.0)*(fBase/2.0)));
+
+ return WORLD_DEGREES_TO_MILES(fDistanceInDegrees);
+}
+
gboolean map_can_zoom_in(const map_t* pMap)
{
// can we increase zoom level?
@@ -396,7 +418,7 @@ void map_set_dimensions(map_t* pMap, const dimensions_t* pDimensions)
// Draw Functions
// ========================================================
-void map_get_render_metrics(map_t* pMap, rendermetrics_t* pMetrics)
+void map_get_render_metrics(const map_t* pMap, rendermetrics_t* pMetrics)
{
g_assert(pMetrics != NULL);
@@ -440,8 +462,6 @@ gboolean map_object_type_atoi(const gchar* pszName, gint* pnReturnObjectTypeID)
gboolean map_layer_render_type_atoi(const gchar* pszName, gint* pnReturnRenderTypeID)
{
- gchar* g_apszMapRenderTypeNames[] = {"lines", "polygons", "line-labels", "polygon-labels", "fill", "locations", "location-labels"};
-
gint i;
for(i=0 ; i<G_N_ELEMENTS(g_apszMapRenderTypeNames) ; i++) {
if(strcmp(pszName, g_apszMapRenderTypeNames[i]) == 0) {
@@ -593,6 +613,14 @@ gboolean map_location_selection_remove(map_t* pMap, gint nLocationID)
return FALSE; // removed
}
+void map_get_visible_maprect(const map_t* pMap, maprect_t* pReturnMapRect)
+{
+ rendermetrics_t renderMetrics = {0};
+ map_get_render_metrics(pMap, &renderMetrics);
+
+ memcpy(pReturnMapRect, &(renderMetrics.rWorldBoundingBox), sizeof(maprect_t));
+}
+
#ifdef ROADSTER_DEAD_CODE
/*
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-16 13:51:47 +0000