I am using a geographic map with a static geotiff image that I converted to tiles.
If I don't specify the world rect, my map and symbol series both show, but my symbol series is in the wrong location. When I set the world rect to the parameters of my image, then the symbol series shows accurately but the map does not appear at all.
It seems to be a similar problem to this post which had no answer given: https://ko.infragistics.com/community/forums/f/ultimate-ui-for-wpf/72598/setting-worldrect-of-xamgographicmap-no-calls-to-gettilelayers-of-custom-maptilesource
Some code:
public class LocalMapTileSource : Maps.XamMultiScaleTileSource { public LocalMapTileSource() : base(3033, 3033, 256, 256, 0) { } private const string TileOriginalPath = @"C:\ProgramData\SmartSnow7\Tiles\{Z}\{X}\{Y}.png"; protected override void GetTileLayers(int tileLevel, int tilePositionX, int tilePositionY, System.Collections.Generic.IList<object> tileImageLayerSources) { var zoom = tileLevel - 8; var invY = (int)Math.Pow(2.0, zoom) - tilePositionY - 1; if (zoom > 0) { var uriString = TileOriginalPath; uriString = uriString.Replace("{Z}", zoom.ToString()); uriString = uriString.Replace("{X}", tilePositionX.ToString()); uriString = uriString.Replace("{Y}", invY.ToString()); tileImageLayerSources.Add(new Uri(uriString)); } } }
public InfragisticsMap() { InitializeComponent(); GeoMap.BackgroundContent = new LocalMapImagery(); GeoMap.WorldRect = new Rect(8.3713675, 46.7982968, 0.0119369, 0.0081759); }
And the information about my original geotiff image:
Driver: GTiff/GeoTIFF Files: LocalMap.tif Size is 3033, 3034 Coordinate System is: GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.257223563, AUTHORITY["EPSG","7030"]], AUTHORITY["EPSG","6326"]], PRIMEM["Greenwich",0], UNIT["degree",0.0174532925199433], AUTHORITY["EPSG","4326"]] Origin = (8.371367454528810,46.798296765380201) Pixel Size = (0.000003935683079,-0.000002694757344) Metadata: AREA_OR_POINT=Area TIFFTAG_DATETIME=2019:01:19 10:44:48 TIFFTAG_RESOLUTIONUNIT=2 (pixels/inch) TIFFTAG_SOFTWARE=Windows Photo Editor 10.0.10011.16384 TIFFTAG_XRESOLUTION=1 TIFFTAG_YRESOLUTION=1 Image Structure Metadata: COMPRESSION=LZW INTERLEAVE=PIXEL Corner Coordinates: Upper Left ( 8.3713675, 46.7982968) ( 8d22'16.92"E, 46d47'53.87"N) Lower Left ( 8.3713675, 46.7901209) ( 8d22'16.92"E, 46d47'24.44"N) Upper Right ( 8.3833044, 46.7982968) ( 8d22'59.90"E, 46d47'53.87"N) Lower Right ( 8.3833044, 46.7901209) ( 8d22'59.90"E, 46d47'24.44"N) Center ( 8.3773359, 46.7942088) ( 8d22'38.41"E, 46d47'39.15"N) Band 1 Block=3033x1 Type=Byte, ColorInterp=Red Band 2 Block=3033x1 Type=Byte, ColorInterp=Green Band 3 Block=3033x1 Type=Byte, ColorInterp=Blue
Follow-up. After doing some debugging, I discovered the following:
The zoom is set to 3, and GetTileLayers() seeks out the tile with Z=3, X=4, and Y=5. This is the only tile it grabs, but I still get a gray screen as the background content.
Hello Doug,
Please provide an isolated sample; I can't recall this behavior occurring in the past.