private void RadioButton_Checked(object sender, RoutedEventArgs e)
{
if (CheckBoxDisableRasterCache != null && thinkGeoMBTilesFeatureLayer != null)
{
Uri styleJsonUri = thinkGeoMBTilesFeatureLayer.StyleJsonUri;
string senderName = (sender as RadioButton).Name;
if (senderName == "RadioButtonLight")
{
styleJsonUri = new Uri(SampleHelper.Get("thinkgeo-world-streets-light.json"), UriKind.Relative);
}
else if (senderName == "RadioButtionDark")
{
styleJsonUri = new Uri(SampleHelper.Get("thinkgeo-world-streets-dark.json"), UriKind.Relative);
}
else if (senderName == "RadioButtionMuteblue")
{
styleJsonUri = new Uri(SampleHelper.Get("mutedblue.json"), UriKind.Relative);
}
layerOverlay.Layers.Clear();
thinkGeoMBTilesFeatureLayer = new ThinkGeoMBTilesLayer(SampleHelper.Get("tiles_Frisco.mbtiles"),
styleJsonUri);
UpdateTileCache(CheckBoxDisableRasterCache.IsChecked.Value);
layerOverlay.Layers.Add(thinkGeoMBTilesFeatureLayer);
Map.Refresh();
}
}
private ImageSource GenerateMapImage()
{
Collection <Layer> layersToDraw = new Collection <Layer>();
// Create the background world maps using vector tiles stored locally in our MBTiles file and also set the styling though a json file
ThinkGeoMBTilesLayer mbTilesLayer = new ThinkGeoMBTilesLayer(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Data/Mbtiles/Frisco.mbtiles"), new Uri(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Data/Json/thinkgeo-world-streets-light.json"), UriKind.Relative));
mbTilesLayer.Open();
layersToDraw.Add(mbTilesLayer);
// Create the new layer and set the projection as the data is in srid 2276 and our background is srid 3857 (spherical mercator).
ShapeFileFeatureLayer zoningLayer = new ShapeFileFeatureLayer(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Data/Shapefile/Zoning.shp"));
zoningLayer.FeatureSource.ProjectionConverter = new ProjectionConverter(2276, 3857);
zoningLayer.Open();
// Create an Area style on zoom level 1 and then apply it to all zoom levels up to 20.
zoningLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = new AreaStyle(new GeoPen(GeoBrushes.Blue));
zoningLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
layersToDraw.Add(zoningLayer);
// Create a GeoCanvas to do the drawing
GeoCanvas canvas = GeoCanvas.CreateDefaultGeoCanvas();
// Create a GeoImage as the image to draw on
GeoImage geoImage = new GeoImage(800, 600);
// Start the drawing by specifying the image, extent and map units
canvas.BeginDrawing(geoImage, MapUtil.GetDrawingExtent(zoningLayer.GetBoundingBox(), 800, 600), GeographyUnit.Meter);
// This collection is used during drawing to pass labels in between layers so we can track collisions
Collection <SimpleCandidate> labels = new Collection <SimpleCandidate>();
// Loop through all the layers and draw them to the GeoCanvas
// The flush is to compact styles that use different drawing levels
foreach (var layer in layersToDraw)
{
layer.Draw(canvas, labels);
canvas.Flush();
}
// End drawing, we can now use the GeoImage
canvas.EndDrawing();
// Create a memory stream and save the GeoImage as a standard PNG formatted image
MemoryStream imageStream = new MemoryStream();
geoImage.Save(imageStream, GeoImageFormat.Png);
// Reset the image stream back to the beginning
imageStream.Position = 0;
return(ImageSource.FromStream(() =>
{
return imageStream;
}));
}
public DisplayThinkGeoMBTilesMaps()
{
layerOverlay = new LayerOverlay();
var styleJsonUri = new Uri(SampleHelper.Get("thinkgeo-world-streets-light.json"), UriKind.Relative);
thinkGeoMBTilesFeatureLayer = new ThinkGeoMBTilesLayer(SampleHelper.Get("tiles_Frisco.mbtiles"), styleJsonUri);
tmpBitmapTileCache = null;
InitializeComponent();
}
private void btnReload_Click(object sender, EventArgs e)
{
File.WriteAllText("tmpRenderer.json", tbxJson.Text);
ThinkGeoMBTilesLayer mbTileslayer = (ThinkGeoMBTilesLayer)((LayerOverlay)mapView1.Overlays["mbtilesOverlay"]).Layers[0];
mbTileslayer.StyleJsonUri = new Uri(@"./tmpRenderer.json", UriKind.Relative);
mbTileslayer.LoadStyleJson();
mapView1.Overlays["mbtilesOverlay"].Refresh();
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
this.wpfMap.MapUnit = GeographyUnit.Meter;
ThinkGeoMBTilesLayer thinkGeoMBTilesFeatureLayer = new ThinkGeoMBTilesLayer(mbtilesPathFilename, new Uri(defaultJsonFilePath, UriKind.Relative));
layerOverlay = new LayerOverlay();
layerOverlay.Layers.Add(thinkGeoMBTilesFeatureLayer);
this.wpfMap.Overlays.Add(layerOverlay);
this.wpfMap.CurrentExtent = new RectangleShape(-8241733.850165642, 4972227.169416549, -8232561.406822379, 4967366.252176043);
this.wpfMap.TrackOverlay.TrackEnded += TrackOverlay_TrackEnded;
}
private void TrackOverlay_TrackEnded(object sender, TrackEndedTrackInteractiveOverlayEventArgs e)
{
InMemoryFeatureLayer trackShapeLayer = wpfMap.TrackOverlay.TrackShapeLayer;
string localFilePath;
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "MB Tiles Database(*.mbtiles)|*.mbtiles";
if (saveFileDialog.ShowDialog().Value)
{
localFilePath = saveFileDialog.FileName.ToString();
if (File.Exists(localFilePath))
{
File.Delete(localFilePath);
}
PolygonShape extractingPolygon = new PolygonShape(trackShapeLayer.InternalFeatures.First().GetWellKnownBinary());
wpfMap.TrackOverlay.TrackMode = TrackMode.None;
pbExtractProgress.Visibility = Visibility.Visible;
pbExtractProgress.IsEnabled = true;
Task.Factory.StartNew(() =>
{
ExtractTiles(extractingPolygon, localFilePath);
Dispatcher.Invoke(() =>
{
pbExtractProgress.IsEnabled = false;
pbExtractProgress.Visibility = Visibility.Hidden;
trackShapeLayer.InternalFeatures.Clear();
wpfMap.Refresh(wpfMap.TrackOverlay);
wpfMap.TrackOverlay.TrackMode = TrackMode.Rectangle;
ThinkGeoMBTilesLayer thinkGeoMBTilesFeatureLayer = new ThinkGeoMBTilesLayer(localFilePath, new Uri(defaultJsonFilePath, UriKind.Relative));
thinkGeoMBTilesFeatureLayer.BitmapTileCache = null;
layerOverlay.Layers.Clear();
layerOverlay.Layers.Add(thinkGeoMBTilesFeatureLayer);
chkExtractingData.IsChecked = false;
wpfMap.Refresh(layerOverlay);
});
});
}
else
{
trackShapeLayer.InternalFeatures.Clear();
}
}
private void btnDisplay_Click(object sender, EventArgs e)
{
ShapeFileFeatureLayer shapeFileFeatureLayer = new ShapeFileFeatureLayer(txtInputShapeFile.Text);
shapeFileFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyle.CreateSimpleAreaStyle(GeoColors.LightYellow, GeoColors.Black);
shapeFileFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultLineStyle = LineStyle.CreateSimpleLineStyle(GeoColors.Black, 2, true);
shapeFileFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = PointStyle.CreateSimpleCircleStyle(GeoColors.Transparent, 7, GeoColors.Black);
shapeFileFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
shapeFileFeatureLayer.Open();
if (shapeFileFeatureLayer.Projection != null)
{
shapeFileFeatureLayer.FeatureSource.ProjectionConverter = new ProjectionConverter(shapeFileFeatureLayer.Projection.ProjString, 3857);
shapeFileFeatureLayer.FeatureSource.ProjectionConverter.Open();
}
LayerOverlay shapeFileOverlay = (LayerOverlay)(mapView1.Overlays["shapeFileOverlay"]);
shapeFileOverlay.TileBuffer = 0;
shapeFileOverlay.Layers.Add(shapeFileFeatureLayer);
ThinkGeoMBTilesLayer thinkGeoMBTilesLayer = new ThinkGeoMBTilesLayer(txtMbtilesFilePathname.Text, new Uri(@"./SimpleRenderer.json", UriKind.Relative));
LayerOverlay mbtilesOverlay = (LayerOverlay)(mapView1.Overlays["mbtilesOverlay"]);
mbtilesOverlay.TileBuffer = 0;
mbtilesOverlay.Layers.Add(thinkGeoMBTilesLayer);
mapView1.MapUnit = GeographyUnit.Meter;
shapeFileFeatureLayer.Open();
mapView1.CurrentExtent = shapeFileFeatureLayer.GetBoundingBox();
mapView1.Refresh();
ckbDisplayShapeFile.Enabled = true;
ckbDisplayMbtiles.Enabled = true;
string jsonFile = File.ReadAllText(@".\SimpleRenderer.json");
tbxJson.Text = jsonFile;
}
private void Form_Load(object sender, EventArgs e)
{
// It is important to set the map unit first to either feet, meters or decimal degrees.
mapView.MapUnit = GeographyUnit.Meter;
// Create a new overlay that will hold our new layer
LayerOverlay layerOverlay = new LayerOverlay();
// Create the background world maps using vector tiles stored locally in our MBTiles file and also set the styling though a json file
ThinkGeoMBTilesLayer mbTilesLayer = new ThinkGeoMBTilesLayer(@"../../../Data/Mbtiles/Frisco.mbtiles", new Uri(@"../../../Data/Json/thinkgeo-world-streets-dark.json", UriKind.Relative));
layerOverlay.Layers.Add(mbTilesLayer);
// Add the overlay to the map
mapView.Overlays.Add(layerOverlay);
// Set the current extent of the map to an area in the data
mapView.CurrentExtent = new RectangleShape(-10785086.173498387, 3913489.693302595, -10779919.030415015, 3910065.3144544438);
// Refresh the map.
mapView.Refresh();
}
/// <summary>
/// Add the ThinkGeoMBTiles Layer to the map and load the data
/// </summary>
protected override void OnAppearing()
{
base.OnAppearing();
// It is important to set the map unit first to either feet, meters or decimal degrees.
mapView.MapUnit = GeographyUnit.Meter;
// Create a new overlay that will hold our new layer
LayerOverlay layerOverlay = new LayerOverlay();
// Create the background world maps using vector tiles stored locally in our MBTiles file and also set the styling though a json file
ThinkGeoMBTilesLayer mbTilesLayer = new ThinkGeoMBTilesLayer(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Data/Mbtiles/Frisco.mbtiles"), new Uri(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "Data/Json/thinkgeo-world-streets-dark.json"), UriKind.Relative));
layerOverlay.Layers.Add(mbTilesLayer);
// Add the overlay to the map
mapView.Overlays.Add(layerOverlay);
// Set the current extent of the map to an area in the data
mapView.CurrentExtent = new RectangleShape(-10785086.173498387, 3913489.693302595, -10779919.030415015, 3910065.3144544438);
// Refresh the map.
mapView.Refresh();
}
private void TrackOverlay_TrackEnded(object sender, TrackEndedTrackInteractiveOverlayEventArgs e)
{
InMemoryFeatureLayer trackShapeLayer = Map1.TrackOverlay.TrackShapeLayer;
string localFilePath;
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = "MB Tiles Database(*.mbtiles)|*.mbtiles";
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
localFilePath = saveFileDialog.FileName.ToString();
if (File.Exists(localFilePath))
{
File.Delete(localFilePath);
}
PolygonShape extractingPolygon = new PolygonShape(trackShapeLayer.InternalFeatures.First().GetWellKnownBinary());
Map1.TrackOverlay.TrackMode = TrackMode.None;
ExtractTiles(extractingPolygon, localFilePath);
trackShapeLayer.InternalFeatures.Clear();
Map1.Refresh(Map1.TrackOverlay);
Map1.TrackOverlay.TrackMode = TrackMode.Rectangle;
ThinkGeoMBTilesLayer thinkGeoMBTilesFeatureLayer = new ThinkGeoMBTilesLayer(localFilePath, new Uri(defaultJsonFilePath, UriKind.Relative));
thinkGeoMBTilesFeatureLayer.BitmapTileCache = null;
layerOverlay.Layers.Clear();
layerOverlay.Layers.Add(thinkGeoMBTilesFeatureLayer);
chkExtractingData.Checked = false;
Map1.Refresh(layerOverlay);
}
else
{
trackShapeLayer.InternalFeatures.Clear();
}
}
private void ExtractTiles(PolygonShape polygonShape, string targetFilePath)
{
RectangleShape bbox = polygonShape.GetBoundingBox();
List <VectorTileRange> tileRanges = new List <VectorTileRange>();
for (int zoomLevel = 0; zoomLevel <= maxZoom; zoomLevel++)
{
VectorTileRange tileRange = GetTileRange(zoomLevel, bbox);
tileRanges.Add(tileRange);
}
ThinkGeoMBTilesLayer.CreateDatabase(targetFilePath);
var targetDBConnection = new SqliteConnection($"Data Source={targetFilePath}");
targetDBConnection.Open();
var targetMap = new TilesTable(targetDBConnection);
var targetMetadata = new MetadataTable(targetDBConnection);
var sourceDBConnection = new SqliteConnection($"Data Source={mbtilesPathFilename}");
sourceDBConnection.Open();
var sourceMap = new TilesTable(sourceDBConnection);
var sourceMetadata = new MetadataTable(sourceDBConnection);
sourceMetadata.ReadAllEntries();
ProjectionConverter projection = new ProjectionConverter(3857, 4326);
projection.Open();
var wgs84BBox = projection.ConvertToExternalProjection(bbox);
foreach (MetadataEntry entry in sourceMetadata.Entries)
{
if (entry.Name.Equals("center"))
{
PointShape centerPoint = wgs84BBox.GetCenterPoint();
entry.Value = $"{centerPoint.X},{centerPoint.Y},{maxZoom}";
}
else if (entry.Name.Equals("bounds"))
{
entry.Value = $"{wgs84BBox.UpperLeftPoint.X},{wgs84BBox.UpperLeftPoint.Y},{wgs84BBox.LowerRightPoint.X},{wgs84BBox.LowerRightPoint.Y}";
}
}
targetMetadata.Insert(sourceMetadata.Entries);
int recordLimit = 1000;
foreach (var tileRange in tileRanges)
{
long offset = 0;
bool isEnd = false;
while (!isEnd)
{
string querySql = $"SELECT * FROM {sourceMap.TableName} WHERE " + ConvetToSqlString(tileRange) + $" LIMIT {offset},{recordLimit}";
var entries = sourceMap.Query(querySql);
for (int i = entries.Count - 1; i >= 0; i--)
{
RectangleShape pbfExtent = GetPbfTileExent((int)entries[i].ZoomLevel, entries[i].TileColumn, entries[i].TileRow);
if (polygonShape.IsDisjointed(pbfExtent))
{
entries.RemoveAt(i);
}
}
targetMap.Insert(entries);
if (entries.Count < recordLimit)
{
isEnd = true;
}
offset = offset + recordLimit;
}
}
}
private async static Task Process(ShapeFileFeatureLayer shapeFile, string targetMbtiles, CancellationToken cancellationToken, int minZoom, int maxZoom, int tileSize, List <string> includedAttributes = null)
{
Console.Out.WriteLine("Processing tiles. StartZoom:{0}, EndZoom:{1}", minZoom, maxZoom);
RectangleShape shapeFileBounds = shapeFile.GetBoundingBox();
shapeFile.Close();
ThinkGeoMBTilesLayer.CreateDatabase(targetMbtiles);
var targetDBConnection = new SqliteConnection($"Data Source={targetMbtiles}");
targetDBConnection.Open();
// Meta Table
var targetMetadata = new MetadataTable(targetDBConnection);
PointShape centerPoint = shapeFileBounds.GetCenterPoint();
string center = $"{centerPoint.X},{centerPoint.Y},{maxZoom}";
string bounds = $"{shapeFileBounds.UpperLeftPoint.X},{shapeFileBounds.UpperLeftPoint.Y},{shapeFileBounds.LowerRightPoint.X},{shapeFileBounds.LowerRightPoint.Y}";
List <MetadataEntry> Entries = new List <MetadataEntry>();
Entries.Add(new MetadataEntry()
{
Name = "name", Value = "ThinkGeo World Streets"
});
Entries.Add(new MetadataEntry()
{
Name = "format", Value = "pbf"
});
Entries.Add(new MetadataEntry()
{
Name = "bounds", Value = bounds
}); //"-96.85310250357627,33.10809235525063,-96.85260897712004,33.107616047247156"
Entries.Add(new MetadataEntry()
{
Name = "center", Value = center
}); // "-96.85285574034816,33.1078542012489,14"
Entries.Add(new MetadataEntry()
{
Name = "minzoom", Value = $"{minZoom}"
});
Entries.Add(new MetadataEntry()
{
Name = "maxzoom", Value = $"{maxZoom}"
});
Entries.Add(new MetadataEntry()
{
Name = "attribution", Value = "Copyright @2020 ThinkGeo LLC.All rights reserved."
});
Entries.Add(new MetadataEntry()
{
Name = "description", Value = "ThinkGeo World Street Vector Tile Data in EPSG:3857"
});
Entries.Add(new MetadataEntry()
{
Name = "version", Value = "2.0"
});
Entries.Add(new MetadataEntry()
{
Name = "json", Value = ""
});
targetMetadata.Insert(Entries);
// Tile Table
var targetMap = new TilesTable(targetDBConnection);
List <TilesEntry> entries = new List <TilesEntry>();
string targetFolder = Path.Combine(Path.GetDirectoryName(targetMbtiles), Path.GetFileNameWithoutExtension(targetMbtiles), "-tmp");
if (!Directory.Exists(targetFolder))
{
Directory.CreateDirectory(targetFolder);
}
SphericalMercatorZoomLevelSet zoomLevelSet = new SphericalMercatorZoomLevelSet();
double currentScale = GetZoomLevelIndex(zoomLevelSet, minZoom);
var tileMatrix = TileMatrix.GetDefaultMatrix(currentScale, tileSize, tileSize, GeographyUnit.Meter);
var tileRange = tileMatrix.GetIntersectingRowColumnRange(shapeFileBounds);
List <Task> tasks = new List <Task>();
for (long tileY = tileRange.MinRowIndex; tileY <= tileRange.MaxRowIndex && !cancellationToken.IsCancellationRequested; ++tileY)
{
for (long tileX = tileRange.MinColumnIndex; tileX <= tileRange.MaxColumnIndex && !cancellationToken.IsCancellationRequested; ++tileX)
{
Task task = ProcessTileRecursive(shapeFile, (int)tileY, (int)tileX, minZoom, maxZoom, cancellationToken, targetFolder, includedAttributes);
tasks.Add(task);
}
}
foreach (var task in tasks)
{
await task;
}
await Task.Run(() =>
{
long index = 0;
string[] files = Directory.GetFiles(targetFolder, "*.mvt");
foreach (string file in files)
{
string fileName = Path.GetFileNameWithoutExtension(file);
string[] NameValues = fileName.Split('_');
byte[] bytes = File.ReadAllBytes(file);
TilesEntry newEntry = new TilesEntry();
int zoomLevel = int.Parse(NameValues[0]);
newEntry.ZoomLevel = zoomLevel;
long row = long.Parse(NameValues[1]);
row = (long)Math.Pow(2, zoomLevel) - row - 1;
newEntry.TileRow = row;
newEntry.TileColumn = long.Parse(NameValues[2]);
newEntry.TileId = index++;
newEntry.TileData = bytes;
File.Delete(file);
entries.Add(newEntry);
if (index % 1000 == 0)
{
targetMap.Insert(entries);
entries.Clear();
continue;
}
}
targetMap.Insert(entries);
});
targetDBConnection.Close();
}
