--- /dev/null
+/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
+/*
+ * viking
+ * Copyright (C) 2010, Guilhem Bonnefille <guilhem.bonnefille@gmail.com>
+ *
+ * viking 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.
+ *
+ * viking 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/>.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef HAVE_MATH_H
+#include <math.h>
+#endif
+
+#include "globals.h"
+#include "viktmsmapsource.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 gchar *_get_uri( VikMapSourceDefault *self, MapCoord *src );
+static gchar *_get_hostname( VikMapSourceDefault *self );
+static DownloadMapOptions *_get_download_options( VikMapSourceDefault *self );
+
+typedef struct _VikTmsMapSourcePrivate VikTmsMapSourcePrivate;
+struct _VikTmsMapSourcePrivate
+{
+ gchar *hostname;
+ gchar *url;
+ DownloadMapOptions options;
+};
+
+#define VIK_TMS_MAP_SOURCE_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), VIK_TYPE_TMS_MAP_SOURCE, VikTmsMapSourcePrivate))
+
+/* properties */
+enum
+{
+ PROP_0,
+
+ PROP_HOSTNAME,
+ PROP_URL,
+ PROP_REFERER,
+ PROP_FOLLOW_LOCATION,
+ PROP_CHECK_FILE_SERVER_TIME,
+};
+
+G_DEFINE_TYPE (VikTmsMapSource, vik_tms_map_source, VIK_TYPE_MAP_SOURCE_DEFAULT);
+
+static void
+vik_tms_map_source_init (VikTmsMapSource *self)
+{
+ /* initialize the object here */
+ VikTmsMapSourcePrivate *priv = VIK_TMS_MAP_SOURCE_PRIVATE (self);
+
+ priv->hostname = NULL;
+ priv->url = NULL;
+ priv->options.referer = NULL;
+ priv->options.follow_location = 0;
+ priv->options.check_file = a_check_map_file;
+ priv->options.check_file_server_time = FALSE;
+
+ g_object_set (G_OBJECT (self),
+ "tilesize-x", 256,
+ "tilesize-y", 256,
+ "drawmode", VIK_VIEWPORT_DRAWMODE_LATLON,
+ NULL);
+}
+
+static void
+vik_tms_map_source_finalize (GObject *object)
+{
+ VikTmsMapSource *self = VIK_TMS_MAP_SOURCE (object);
+ VikTmsMapSourcePrivate *priv = VIK_TMS_MAP_SOURCE_PRIVATE (self);
+
+ g_free (priv->hostname);
+ priv->hostname = NULL;
+ g_free (priv->url);
+ priv->url = NULL;
+ g_free (priv->options.referer);
+ priv->options.referer = NULL;
+
+ G_OBJECT_CLASS (vik_tms_map_source_parent_class)->finalize (object);
+}
+
+static void
+vik_tms_map_source_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ VikTmsMapSource *self = VIK_TMS_MAP_SOURCE (object);
+ VikTmsMapSourcePrivate *priv = VIK_TMS_MAP_SOURCE_PRIVATE (self);
+
+ switch (property_id)
+ {
+ case PROP_HOSTNAME:
+ g_free (priv->hostname);
+ priv->hostname = g_value_dup_string (value);
+ break;
+
+ case PROP_URL:
+ g_free (priv->url);
+ priv->url = g_value_dup_string (value);
+ break;
+
+ case PROP_REFERER:
+ g_free (priv->options.referer);
+ priv->options.referer = g_value_dup_string (value);
+ break;
+
+ case PROP_FOLLOW_LOCATION:
+ priv->options.follow_location = g_value_get_long (value);
+ break;
+
+ case PROP_CHECK_FILE_SERVER_TIME:
+ priv->options.check_file_server_time = g_value_get_boolean (value);
+ break;
+
+ default:
+ /* We don't have any other property... */
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+vik_tms_map_source_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ VikTmsMapSource *self = VIK_TMS_MAP_SOURCE (object);
+ VikTmsMapSourcePrivate *priv = VIK_TMS_MAP_SOURCE_PRIVATE (self);
+
+ switch (property_id)
+ {
+ case PROP_HOSTNAME:
+ g_value_set_string (value, priv->hostname);
+ break;
+
+ case PROP_URL:
+ g_value_set_string (value, priv->url);
+ break;
+
+ case PROP_REFERER:
+ g_value_set_string (value, priv->options.referer);
+ break;
+
+ case PROP_FOLLOW_LOCATION:
+ g_value_set_long (value, priv->options.follow_location);
+ break;
+
+ case PROP_CHECK_FILE_SERVER_TIME:
+ g_value_set_boolean (value, priv->options.check_file_server_time);
+ break;
+
+ default:
+ /* We don't have any other property... */
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+vik_tms_map_source_class_init (VikTmsMapSourceClass *klass)
+{
+ GObjectClass* object_class = G_OBJECT_CLASS (klass);
+ VikMapSourceClass* granparent_class = VIK_MAP_SOURCE_CLASS (klass);
+ VikMapSourceDefaultClass* parent_class = VIK_MAP_SOURCE_DEFAULT_CLASS (klass);
+ GParamSpec *pspec = NULL;
+
+ object_class->set_property = vik_tms_map_source_set_property;
+ object_class->get_property = vik_tms_map_source_get_property;
+
+ /* Overiding methods */
+ granparent_class->coord_to_mapcoord = _coord_to_mapcoord;
+ granparent_class->mapcoord_to_center_coord = _mapcoord_to_center_coord;
+ granparent_class->supports_download_only_new = _supports_download_only_new;
+
+ parent_class->get_uri = _get_uri;
+ parent_class->get_hostname = _get_hostname;
+ parent_class->get_download_options = _get_download_options;
+
+ pspec = g_param_spec_string ("hostname",
+ "Hostname",
+ "The hostname of the map server",
+ "<no-set>" /* default value */,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
+ g_object_class_install_property (object_class, PROP_HOSTNAME, pspec);
+
+ pspec = g_param_spec_string ("url",
+ "URL",
+ "The template of the tiles' URL",
+ "<no-set>" /* default value */,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
+ g_object_class_install_property (object_class, PROP_URL, pspec);
+
+ pspec = g_param_spec_string ("referer",
+ "Referer",
+ "The REFERER string to use in HTTP request",
+ NULL /* default value */,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
+ g_object_class_install_property (object_class, PROP_REFERER, pspec);
+
+ pspec = g_param_spec_long ("follow-location",
+ "Follow location",
+ "Specifies the number of retries to follow a redirect while downloading a page",
+ 0 /* minimum value */,
+ G_MAXLONG /* maximum value */,
+ 0 /* default value */,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
+ g_object_class_install_property (object_class, PROP_FOLLOW_LOCATION, pspec);
+
+ pspec = g_param_spec_boolean ("check-file-server-time",
+ "Check file server time",
+ "Age of current cache before redownloading tile",
+ FALSE /* default value */,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE);
+ g_object_class_install_property (object_class, PROP_CHECK_FILE_SERVER_TIME, pspec);
+
+ g_type_class_add_private (klass, sizeof (VikTmsMapSourcePrivate));
+
+ object_class->finalize = vik_tms_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 tms_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)
+{
+ g_return_val_if_fail (VIK_IS_TMS_MAP_SOURCE(self), FALSE);
+
+ VikTmsMapSourcePrivate *priv = VIK_TMS_MAP_SOURCE_PRIVATE(self);
+
+ return priv->options.check_file_server_time;
+}
+
+static gboolean
+_coord_to_mapcoord ( VikMapSource *self, const VikCoord *src, gdouble xzoom, gdouble yzoom, MapCoord *dest )
+{
+ g_assert ( src->mode == VIK_COORD_LATLON );
+
+ if ( xzoom != yzoom )
+ return FALSE;
+
+ dest->scale = tms_zoom ( xzoom );
+ if ( dest->scale == 255 )
+ return FALSE;
+
+ /* Note : 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);
+ /* 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->z = 0;
+ g_debug("%s: %f,%f -> %d,%d", __FUNCTION__,
+ src->east_west, src->north_south, dest->x, dest->y);
+ return TRUE;
+}
+
+static void
+_mapcoord_to_center_coord ( VikMapSource *self, MapCoord *src, VikCoord *dest )
+{
+ gdouble socalled_mpp;
+ if (src->scale >= 0)
+ socalled_mpp = GZ(src->scale);
+ else
+ socalled_mpp = 1.0/GZ(-src->scale);
+ dest->mode = VIK_COORD_LATLON;
+ dest->east_west = (src->x+0.5) * 180 / 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);
+ g_debug("%s: %d,%d -> %f,%f", __FUNCTION__,
+ src->x, src->y, dest->east_west, dest->north_south);
+}
+
+static gchar *
+_get_uri( VikMapSourceDefault *self, MapCoord *src )
+{
+ g_return_val_if_fail (VIK_IS_TMS_MAP_SOURCE(self), NULL);
+
+ VikTmsMapSourcePrivate *priv = VIK_TMS_MAP_SOURCE_PRIVATE(self);
+ gdouble socalled_mpp;
+ if (src->scale >= 0)
+ socalled_mpp = GZ(src->scale);
+ else
+ socalled_mpp = 1.0/GZ(-src->scale);
+ /* We should restore logic of viking:
+ * tile index on Y axis follow a screen logic (top -> down)
+ */
+
+ /* Note : nb tiles on Y axis */
+ gint nb_tiles = GZ(17 - src->scale - 1);
+
+ gchar *uri = g_strdup_printf (priv->url, 17 - src->scale - 1, src->x, nb_tiles - src->y - 1);
+
+ return uri;
+}
+
+static gchar *
+_get_hostname( VikMapSourceDefault *self )
+{
+ g_return_val_if_fail (VIK_IS_TMS_MAP_SOURCE(self), NULL);
+
+ VikTmsMapSourcePrivate *priv = VIK_TMS_MAP_SOURCE_PRIVATE(self);
+ return g_strdup( priv->hostname );
+}
+
+static DownloadMapOptions *
+_get_download_options( VikMapSourceDefault *self )
+{
+ g_return_val_if_fail (VIK_IS_TMS_MAP_SOURCE(self), NULL);
+
+ VikTmsMapSourcePrivate *priv = VIK_TMS_MAP_SOURCE_PRIVATE(self);
+ return &(priv->options);
+}
+
+VikTmsMapSource *
+vik_tms_map_source_new_with_id (guint8 id, const gchar *label, const gchar *hostname, const gchar *url)
+{
+ return g_object_new(VIK_TYPE_TMS_MAP_SOURCE,
+ "id", id, "label", label, "hostname", hostname, "url", url, NULL);
+}
--- /dev/null
+#include <math.h>
+#include <vikwmscmapsource.h>
+#include <vikslippymapsource.h>
+
+void test_coord_to_mapcoord(VikMapSource *source, gdouble lat, gdouble lon, gdouble zoom)
+{
+ VikCoord vikCoord;
+ MapCoord mapCoord;
+ vikCoord.mode = VIK_COORD_LATLON;
+ vikCoord.east_west = lon;
+ vikCoord.north_south = lat;
+ printf("%s: %f %f %f => ", g_type_name(G_OBJECT_TYPE(source)), vikCoord.east_west, vikCoord.north_south, zoom);
+ vik_map_source_coord_to_mapcoord (source, &vikCoord, zoom, zoom, &mapCoord);
+ printf("x=%d y=%d\n", mapCoord.x, mapCoord.y);
+}
+
+void test_mapcoord_to_center_coord (VikMapSource *source, int x, int y, int scale)
+{
+ VikCoord vikCoord;
+ MapCoord mapCoord;
+ mapCoord.x = x;
+ mapCoord.y = y;
+ mapCoord.scale = scale;
+ printf("%s: %d %d %d => ", g_type_name(G_OBJECT_TYPE(source)), mapCoord.x, mapCoord.y, scale);
+ vik_map_source_mapcoord_to_center_coord (source, &mapCoord, &vikCoord);
+ printf("lon=%f lat=%f\n", vikCoord.east_west, vikCoord.north_south);
+}
+
+int main(int argc, char *argv[])
+{
+ g_type_init();
+
+ VikMapSource *spotmaps4osm_wmsc_type =
+ VIK_MAP_SOURCE(g_object_new(VIK_TYPE_WMSC_MAP_SOURCE,
+ "id", 202,
+ "label", "Spotmaps (WMS-C)",
+ "hostname", "spotmaps.youmapps.org",
+ "url", "/spotmaps4osm/?LAYERS=spotmaps4osm&SERVICE=SPOTMAPS4OSM&SRS=EPSG:4326&bbox=%s,%s,%s,%s&width=256&height=256",
+ NULL));
+
+ VikMapSource *osmarender_type =
+ VIK_MAP_SOURCE(g_object_new(VIK_TYPE_SLIPPY_MAP_SOURCE,
+ "id", 12,
+ "label", "OpenStreetMap (Osmarender)",
+ "hostname", "tah.openstreetmap.org",
+ "url", "/Tiles/tile/%d/%d/%d.png",
+ "check-file-server-time", TRUE,
+ NULL));
+
+ gdouble lats[] = { 0, 90, 45, -45, -90 };
+ gdouble lons[] = { 0, 180, 90, 45, -45, -90, -180 };
+ int scale;
+ for (scale = 0 ; scale < 18 ; scale++)
+ {
+ int i;
+ for (i=0 ; i<sizeof(lats)/sizeof(lats[0]) ; i++)
+ {
+ int j;
+ for (j=0 ; j<sizeof(lons)/sizeof(lons[0]) ; j++)
+ {
+ test_coord_to_mapcoord (spotmaps4osm_wmsc_type, lats[i], lons[j], 2<<scale);
+ test_coord_to_mapcoord (osmarender_type, lats[i], lons[j], 2<<scale);
+ }
+ }
+ }
+
+ for (scale = 0 ; scale < 18 ; scale++)
+ {
+ test_mapcoord_to_center_coord (spotmaps4osm_wmsc_type, 0, 0, scale);
+ test_mapcoord_to_center_coord (osmarender_type, 0, 0, scale);
+ }
+
+ return 0;
+}
projects / andy / viking.git / commitdiff