*/
/**
+ * SECTION:vikwmscmapsource
+ * @short_description: the class for WMS/WMS-C oriented map sources
+ *
+ * The #VikWmscMapSource class handles WMS/WMS-C oriented map sources.
+ *
* http://wiki.osgeo.org/wiki/WMS_Tile_Caching
*/
#include "globals.h"
#include "vikwmscmapsource.h"
+#include "maputils.h"
static gboolean _coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest );
static void _mapcoord_to_center_coord ( VikMapSource *self, MapCoord *src, VikCoord *dest );
-static gboolean _supports_download_only_new (VikMapSource *self );
+static gboolean _supports_download_only_new ( VikMapSource *self );
+static gboolean _is_direct_file_access ( VikMapSource *self );
static gchar *_get_uri( VikMapSourceDefault *self, MapCoord *src );
static gchar *_get_hostname( VikMapSourceDefault *self );
grandparent_class->coord_to_mapcoord = _coord_to_mapcoord;
grandparent_class->mapcoord_to_center_coord = _mapcoord_to_center_coord;
grandparent_class->supports_download_only_new = _supports_download_only_new;
+ grandparent_class->is_direct_file_access = _is_direct_file_access;
parent_class->get_uri = _get_uri;
parent_class->get_hostname = _get_hostname;
object_class->finalize = vik_wmsc_map_source_finalize;
}
-/* 1 << (x) is like a 2**(x) */
-#define GZ(x) ((1<<x))
-
-static const gdouble scale_mpps[] = { GZ(0), GZ(1), GZ(2), GZ(3), GZ(4), GZ(5), GZ(6), GZ(7), GZ(8), GZ(9),
- GZ(10), GZ(11), GZ(12), GZ(13), GZ(14), GZ(15), GZ(16), GZ(17) };
-
-static const gint num_scales = (sizeof(scale_mpps) / sizeof(scale_mpps[0]));
-
-static const gdouble scale_neg_mpps[] = { 1.0/GZ(0), 1.0/GZ(1), 1.0/GZ(2), 1.0/GZ(3) };
-static const gint num_scales_neg = (sizeof(scale_neg_mpps) / sizeof(scale_neg_mpps[0]));
-
-#define ERROR_MARGIN 0.01
-static gint wmsc_zoom ( gdouble mpp ) {
- gint i;
- for ( i = 0; i < num_scales; i++ ) {
- if ( ABS(scale_mpps[i] - mpp) < ERROR_MARGIN ) {
- return i;
- }
- }
- for ( i = 0; i < num_scales_neg; i++ ) {
- if ( ABS(scale_neg_mpps[i] - mpp) < 0.000001 ) {
- return -i;
- }
- }
-
- return 255;
-}
-
-gboolean
-_supports_download_only_new (VikMapSource *self)
+static gboolean
+_supports_download_only_new ( VikMapSource *self )
{
g_return_val_if_fail (VIK_IS_WMSC_MAP_SOURCE(self), FALSE);
return priv->options.check_file_server_time;
}
+static gboolean
+_is_direct_file_access ( VikMapSource *self )
+{
+ return FALSE;
+}
+
static gboolean
_coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest )
{
if ( xzoom != yzoom )
return FALSE;
- dest->scale = wmsc_zoom ( xzoom );
+ dest->scale = map_utils_mpp_to_scale ( xzoom );
if ( dest->scale == 255 )
return FALSE;
- /* Note : GZ(17) / xzoom / 2 = number of tile on Y axis */
+ /* Note : VIK_GZ(17) / xzoom / 2 = number of tile on Y axis */
g_debug("%s: xzoom=%f yzoom=%f -> %f", __FUNCTION__,
- xzoom, yzoom, GZ(17) / xzoom / 2);
- dest->x = floor((src->east_west + 180) / 180 * GZ(17) / xzoom / 2);
+ xzoom, yzoom, VIK_GZ(17) / xzoom / 2);
+ dest->x = floor((src->east_west + 180) / 180 * VIK_GZ(17) / xzoom / 2);
/* We should restore logic of viking:
* tile index on Y axis follow a screen logic (top -> down)
*/
- dest->y = floor((180 - (src->north_south + 90)) / 180 * GZ(17) / xzoom / 2);
+ dest->y = floor((180 - (src->north_south + 90)) / 180 * VIK_GZ(17) / xzoom / 2);
dest->z = 0;
g_debug("%s: %f,%f -> %d,%d", __FUNCTION__,
src->east_west, src->north_south, dest->x, dest->y);
{
gdouble socalled_mpp;
if (src->scale >= 0)
- socalled_mpp = GZ(src->scale);
+ socalled_mpp = VIK_GZ(src->scale);
else
- socalled_mpp = 1.0/GZ(-src->scale);
+ socalled_mpp = 1.0/VIK_GZ(-src->scale);
dest->mode = VIK_COORD_LATLON;
- dest->east_west = (src->x+0.5) * 180 / GZ(17) * socalled_mpp * 2 - 180;
+ dest->east_west = (src->x+0.5) * 180 / VIK_GZ(17) * socalled_mpp * 2 - 180;
/* We should restore logic of viking:
* tile index on Y axis follow a screen logic (top -> down)
*/
- dest->north_south = -((src->y+0.5) * 180 / GZ(17) * socalled_mpp * 2 - 90);
+ dest->north_south = -((src->y+0.5) * 180 / VIK_GZ(17) * socalled_mpp * 2 - 90);
g_debug("%s: %d,%d -> %f,%f", __FUNCTION__,
src->x, src->y, dest->east_west, dest->north_south);
}
VikWmscMapSourcePrivate *priv = VIK_WMSC_MAP_SOURCE_PRIVATE(self);
gdouble socalled_mpp;
if (src->scale >= 0)
- socalled_mpp = GZ(src->scale);
+ socalled_mpp = VIK_GZ(src->scale);
else
- socalled_mpp = 1.0/GZ(-src->scale);
- gdouble minx = (gdouble)src->x * 180 / GZ(17) * socalled_mpp * 2 - 180;
- gdouble maxx = (gdouble)(src->x + 1) * 180 / GZ(17) * socalled_mpp * 2 - 180;
+ socalled_mpp = 1.0/VIK_GZ(-src->scale);
+ gdouble minx = (gdouble)src->x * 180 / VIK_GZ(17) * socalled_mpp * 2 - 180;
+ gdouble maxx = (gdouble)(src->x + 1) * 180 / VIK_GZ(17) * socalled_mpp * 2 - 180;
/* We should restore logic of viking:
* tile index on Y axis follow a screen logic (top -> down)
*/
- gdouble miny = -((gdouble)(src->y + 1) * 180 / GZ(17) * socalled_mpp * 2 - 90);
- gdouble maxy = -((gdouble)(src->y) * 180 / GZ(17) * socalled_mpp * 2 - 90);
+ gdouble miny = -((gdouble)(src->y + 1) * 180 / VIK_GZ(17) * socalled_mpp * 2 - 90);
+ gdouble maxy = -((gdouble)(src->y) * 180 / VIK_GZ(17) * socalled_mpp * 2 - 90);
gchar sminx[G_ASCII_DTOSTR_BUF_SIZE];
gchar smaxx[G_ASCII_DTOSTR_BUF_SIZE];
projects / andy / viking.git / blobdiff