private void mapView1_CurrentScaleChanged(object sender, CurrentScaleChangedMapViewEventArgs e)
{
int zoom = MBTilesGenerator.GetZoom(this.mapView1.ZoomLevelSet, e.NewScale);
StringBuilder sb = new StringBuilder();
sb.AppendLine($"Current Zoom: {zoom}");
MBTiles.Tile tile = MBTilesGenerator.GetFirstTile(txtMbtilesFilePathname.Text, zoom);
if (tile != null)
{
foreach (MBTiles.TileLayer tileLayer in tile.Layers)
{
sb.AppendLine($"Layer: {tileLayer.Name}");
sb.AppendLine($"Version: {tileLayer.Version}");
sb.AppendLine($"There are {tileLayer.Keys.Count} columns in the data");
foreach (string key in tileLayer.Keys)
{
sb.AppendLine($"\t Column Name: {key}");
}
}
}
txtMBTileInfo.Text = sb.ToString();
}
private async Task GenerateTiles()
{
if (cancellationTokenSource != null)
{
cancellationTokenSource.Cancel();
cancellationTokenSource.Dispose();
}
cancellationTokenSource = new System.Threading.CancellationTokenSource();
List <string> attributes = new List <string>();
for (int i = 0; i < clbSelectedAttributes.CheckedItems.Count; ++i)
{
attributes.Add(clbSelectedAttributes.CheckedItems[i].ToString());
}
OutputMessage("Processing Vector tiles..\n");
DateTime tick = DateTime.Now;
ShapeFileFeatureSource.BuildIndexFile(this.txtInputShapeFile.Text, BuildIndexMode.DoNotRebuild);
await MBTilesGenerator.Process(this.txtInputShapeFile.Text, this.txtMbtilesFilePathname.Text, cancellationTokenSource.Token, (int)(nudStartZoom.Value), (int)(nudEndZoom.Value), 512, attributes);
OutputMessage("Processing Vector tiles complete. Elapsed time:" + DateTime.Now.Subtract(tick) + "\n");
}