protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// USGS Base map: http://basemap.nationalmap.gov/arcgis/rest/services/USGSTopo/MapServer
string url = "http://basemap.nationalmap.gov/arcgis/services/USGSTopo/MapServer/WmsServer?";
string layers = "0";
HttpWmsTileDataSource wms = new HttpWmsTileDataSource(0, 14, BaseProjection, false, url, "", layers, "image/png8");
RasterTileLayer wmsLayer = new RasterTileLayer(wms);
// Calculate zoom bias, basically this is needed to 'undo' automatic DPI scaling,
// we will display original raster with close to 1:1 pixel density
double zoomLevelBias = Math.Log(MapView.Options.DPI / 160) / Math.Log(2);
wmsLayer.ZoomLevelBias = (float)zoomLevelBias;
MapView.Layers.Add(wmsLayer);
// Animate map to map coverage
MapView.SetFocusPos(BaseProjection.FromWgs84(new MapPos(-100, 40)), 1);
MapView.SetZoom(5, 1);
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// USGS Base map: http://basemap.nationalmap.gov/arcgis/rest/services/USGSTopo/MapServer
string url = "http://basemap.nationalmap.gov/arcgis/services/USGSTopo/MapServer/WmsServer?";
string layers = "0";
HttpWmsTileDataSource wms = new HttpWmsTileDataSource(0, 14, BaseProjection, false, url, "", layers, "image/png8");
RasterTileLayer wmsLayer = new RasterTileLayer(wms);
// Calculate zoom bias, basically this is needed to 'undo' automatic DPI scaling,
// we will display original raster with close to 1:1 pixel density
double zoomLevelBias = Math.Log(MapView.Options.DPI / 160) / Math.Log(2);
wmsLayer.ZoomLevelBias = (float)zoomLevelBias;
MapView.Layers.Add(wmsLayer);
// Animate map to map coverage
MapView.SetFocusPos(BaseProjection.FromWgs84(new MapPos(-100, 40)), 1);
MapView.SetZoom(5, 1);
}
