private async void btnBMLoad_Click(object sender, EventArgs e) { // Test to create a tile from a world terrain bitmap listBox1.Items.Add("Fetching DEM..."); // class to get digital elevation models(DEM) BitmapDEMSource demSrc = new BitmapDEMSource(); demSrc.Initalize(new MapHeader() { GridSize = 56 }); var elevData = await demSrc.GetDemLL(173, -43, 174, -42); //) mp.GetTerrainTileAsync(x,y,z); listBox1.Items.Add($"DEM length {elevData.Elev.Length}"); var pt1 = demSrc.MapProject(-42, 173); var pt2 = demSrc.MapProject(-43, 174); listBox1.Items.Add($"Bitmap pixels:({pt1.X},{pt1.Y}) - ({pt2.X},{pt2.Y})"); pt1 = demSrc.MapProject(-83, -180); pt2 = demSrc.MapProject(83, 180); listBox1.Items.Add($"Bitmap pixels:({pt1.X},{pt1.Y}) - ({pt2.X},{pt2.Y})"); /* * listBox1.Items.Add("Making Mesh..."); * // This class constructs a cesium quantized mesh from the dem * var vertices = new Mesh().MakeFakeMesh(ref elevData); * * listBox1.Items.Add("Making Tile..."); * // This class constructs a quantized mesh tile mesh from the original mesh * var tile = new Tiler().MakeTile(vertices, * new TerrainTileHeader() { MinimumHeight = elevData.MinElevation, MaximumHeight = elevData.MaxElevation }, * (uint)(elevData.GridSize * elevData.GridSize * 2), elevData.GridSize); * * listBox1.Items.Add($"Tile Ready. Size:{tile.Length} . Saving to {txtPath.Text}"); * * var ms = new MemoryStream(tile); * using (FileStream fs = new FileStream(txtPath.Text, FileMode.Create)) * using (GZipStream zipStream = new GZipStream(fs, CompressionMode.Compress, false)) * { * zipStream.Write(ms.ToArray(), 0, ms.ToArray().Length); // .Write(bytes, 0, bytes.Length); * } */ }
private async void button9_Click(object sender, EventArgs e) { // Make Bitmap Tile listBox1.Items.Add("Fetching DEM..."); // class to get digital elevation models(DEM) BitmapDEMSource demSrc = new BitmapDEMSource(); demSrc.Initalize(new MapHeader() { GridSize = Int32.Parse(txtTileSize.Text) }); var elevData = await demSrc.GetDemXYZ(501, 190, 8); //) mp.GetTerrainTileAsync(x,y,z); listBox1.Items.Add($"DEM length {elevData.Elev.Length}"); listBox1.Items.Add("Making Mesh..."); // This class constructs a cesium quantized mesh from the dem var vertices = new Mesh().MakeFakeMesh(ref elevData); listBox1.Items.Add("Making Tile..."); // This class constructs a quantized mesh tile mesh from the original mesh var tile = new Tiler().MakeTile(vertices, new TerrainTileHeader() { MinimumHeight = elevData.MinimumHeight, MaximumHeight = elevData.MaximumHeight }, MapUtil.GridSizeToTriangleCount(elevData.GridSize), elevData.GridSize); listBox1.Items.Add($"Tile Ready. Size:{tile.Length} . Saving to {txtPath.Text}"); var ms = new MemoryStream(tile); using (FileStream fs = new FileStream(txtPath.Text, FileMode.Create)) using (GZipStream zipStream = new GZipStream(fs, CompressionMode.Compress, false)) { zipStream.Write(ms.ToArray(), 0, ms.ToArray().Length); // .Write(bytes, 0, bytes.Length); } }
public async Task <IActionResult> GetBitmapTile(int x, int y, int z, string formatExtension) { // todo for now default values. these will be passed in eventually var testDataPath = _configuration["TestDataPath"]; Guid projectId; bool isValid = Guid.TryParse(_configuration["DefaultProjectUid"], out projectId); if (!isValid) { return(NotFound()); // todo } if (z < 1) { // these two tiles are standard // Use tiler to fetch the correct tile var basicTile = await new Tiler.Tiler().FetchTile(testDataPath, x, y, z); if (basicTile != null) { HttpContext.Response.Headers.Add("Content-Encoding", "gzip"); // already compressed on disk // HttpContext.Response.Headers.Add("Access-Control-Allow-Origin","*"); // already compressed on disk HttpContext.Response.Headers.Add("Content-Length", basicTile.Length.ToString()); HttpContext.Response.Headers.Add("Content-Type", "application/octet-stream"); HttpContext.Response.Headers.Add("Content-Disposition", $"attachment;filename={y}.terrain"); return(File(basicTile, _TerrainDataQM)); } Console.WriteLine($"*** Tile x:{x},y:{y},z:{z} was found ***"); return(NotFound()); // todo } // Bitmap tiler BitmapDEMSource demSrc = new BitmapDEMSource(); var elevData = await demSrc.GetDemXYZ(x, y, z); // DI injected for single instance // This class constructs a cesium quantized mesh from the dem var vertices = new Mesh.Mesh().MakeFakeMesh(ref elevData); // todo fill in header details var tempHeadr = new TerrainTileHeader() { MaximumHeight = elevData.MaximumHeight, MinimumHeight = elevData.MinimumHeight, CenterX = elevData.CenterX, CenterY = elevData.CenterY, CenterZ = elevData.CenterZ, BoundingSphereCenterX = elevData.BoundingSphereCenterX, BoundingSphereCenterY = elevData.BoundingSphereCenterY, BoundingSphereCenterZ = elevData.BoundingSphereCenterZ, BoundingSphereRadius = elevData.BoundingSphereRadius, HorizonOcclusionPointX = elevData.HorizonOcclusionPointX, HorizonOcclusionPointY = elevData.HorizonOcclusionPointY, HorizonOcclusionPointZ = elevData.HorizonOcclusionPointZ }; // This class constructs a quantized mesh tile mesh from the original mesh var tile = new Tiler.Tiler().MakeTile(vertices, tempHeadr, MapUtil.GridSizeToTriangleCount(elevData.GridSize), elevData.GridSize); // Debugging code string file = $"c:\\temp\\Test-{x}-{y}-{z}.terrain"; FileInfo fi = new FileInfo(file); if (!fi.Exists && z == 8 && x == 501) { var ms = new MemoryStream(tile); using (FileStream fs = new FileStream(file, FileMode.Create)) using (GZipStream zipStream = new GZipStream(fs, CompressionMode.Compress, false)) { zipStream.Write(ms.ToArray(), 0, ms.ToArray().Length); // .Write(bytes, 0, bytes.Length); } } if (tile != null) { var compressed = MapUtil.Compress(tile); HttpContext.Response.Headers.Add("Content-Encoding", "gzip"); // already compressed on disk HttpContext.Response.Headers.Add("Content-Length", compressed.Length.ToString()); HttpContext.Response.Headers.Add("Content-Type", "application/octet-stream"); HttpContext.Response.Headers.Add("Content-Disposition", $"attachment;filename={y}.terrain"); return(File(compressed, _TerrainDataQM)); // return Ok(MapUtil.Compress(tile)); } else { return(NotFound()); } }