ClemensFischer/XAML-Map-Control
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Simplified WMS/WMTS layers

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ClemensFischer 2022-11-25 19:05:48 +01:00
parent afc93704d9
commit 370618f66f
5 changed files with 66 additions and 106 deletions
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72
MapControl/Shared/WmtsTileMatrixLayer.cs
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@ -21,21 +21,18 @@ namespace MapControl
{
public class WmtsTileMatrixLayer : Panel
{
// zoomLevel is index of tileMatrix in a WmtsTileMatrixSet.TileMatrixes list
//
public WmtsTileMatrixLayer(WmtsTileMatrix tileMatrix, int zoomLevel)
{
RenderTransform = new MatrixTransform();
TileMatrix = tileMatrix;
ZoomLevel = zoomLevel;
WmtsTileMatrix = tileMatrix;
TileMatrix = new TileMatrix(zoomLevel, 1, 1, 0, 0);
}
public WmtsTileMatrix TileMatrix { get; }
public WmtsTileMatrix WmtsTileMatrix { get; }
public int ZoomLevel { get; } // index of TileMatrix in WmtsTileMatrixSet.TileMatrixes
public int XMin { get; private set; }
public int YMin { get; private set; }
public int XMax { get; private set; }
public int YMax { get; private set; }
public TileMatrix TileMatrix { get; private set; }
public TileCollection Tiles { get; private set; } = new TileCollection();
@ -43,62 +40,57 @@ namespace MapControl
{
// tile matrix origin in pixels
//
var tileMatrixOrigin = new Point(TileMatrix.TileWidth * XMin, TileMatrix.TileHeight * YMin);
var tileMatrixOrigin = new Point(WmtsTileMatrix.TileWidth * TileMatrix.XMin, WmtsTileMatrix.TileHeight * TileMatrix.YMin);
((MatrixTransform)RenderTransform).Matrix =
viewTransform.GetTileLayerTransform(TileMatrix.Scale, TileMatrix.TopLeft, tileMatrixOrigin);
viewTransform.GetTileLayerTransform(WmtsTileMatrix.Scale, WmtsTileMatrix.TopLeft, tileMatrixOrigin);
}
public bool SetBounds(ViewTransform viewTransform, Size viewSize)
public bool UpdateTiles(ViewTransform viewTransform, Size viewSize)
{
// bounds in tile pixels from view size
//
var bounds = viewTransform.GetTileMatrixBounds(TileMatrix.Scale, TileMatrix.TopLeft, viewSize);
var bounds = viewTransform.GetTileMatrixBounds(WmtsTileMatrix.Scale, WmtsTileMatrix.TopLeft, viewSize);
// tile X and Y bounds
//
var xMin = (int)Math.Floor(bounds.X / TileMatrix.TileWidth);
var yMin = (int)Math.Floor(bounds.Y / TileMatrix.TileHeight);
var xMax = (int)Math.Floor((bounds.X + bounds.Width) / TileMatrix.TileWidth);
var yMax = (int)Math.Floor((bounds.Y + bounds.Height) / TileMatrix.TileHeight);
var xMin = (int)Math.Floor(bounds.X / WmtsTileMatrix.TileWidth);
var yMin = (int)Math.Floor(bounds.Y / WmtsTileMatrix.TileHeight);
var xMax = (int)Math.Floor((bounds.X + bounds.Width) / WmtsTileMatrix.TileWidth);
var yMax = (int)Math.Floor((bounds.Y + bounds.Height) / WmtsTileMatrix.TileHeight);
// total tile matrix width in meters
//
var totalWidth = TileMatrix.MatrixWidth * TileMatrix.TileWidth / TileMatrix.Scale;
var totalWidth = WmtsTileMatrix.MatrixWidth * WmtsTileMatrix.TileWidth / WmtsTileMatrix.Scale;
if (Math.Abs(totalWidth - 360d * MapProjection.Wgs84MeterPerDegree) > 1d)
{
// no full longitudinal coverage, restrict x index
//
xMin = Math.Max(xMin, 0);
xMax = Math.Min(Math.Max(xMax, 0), TileMatrix.MatrixWidth - 1);
xMax = Math.Min(Math.Max(xMax, 0), WmtsTileMatrix.MatrixWidth - 1);
}
yMin = Math.Max(yMin, 0);
yMax = Math.Min(Math.Max(yMax, 0), TileMatrix.MatrixHeight - 1);
yMax = Math.Min(Math.Max(yMax, 0), WmtsTileMatrix.MatrixHeight - 1);
if (XMin == xMin && YMin == yMin && XMax == xMax && YMax == yMax)
if (TileMatrix.XMin == xMin && TileMatrix.YMin == yMin &&
TileMatrix.XMax == xMax && TileMatrix.YMax == yMax)
{
// no change of the TileMatrix and the Tiles collection
//
return false;
}
XMin = xMin;
YMin = yMin;
XMax = xMax;
YMax = yMax;
TileMatrix = new TileMatrix(TileMatrix.ZoomLevel, xMin, yMin, xMax, yMax);
return true;
}
public void UpdateTiles()
{
var tiles = new TileCollection();
for (var y = YMin; y <= YMax; y++)
for (var y = yMin; y <= yMax; y++)
{
for (var x = XMin; x <= XMax; x++)
for (var x = xMin; x <= xMax; x++)
{
tiles.Add(Tiles.GetTile(ZoomLevel, x, y, TileMatrix.MatrixWidth));
tiles.Add(Tiles.GetTile(TileMatrix.ZoomLevel, x, y, WmtsTileMatrix.MatrixWidth));
}
}
@ -106,10 +98,12 @@ namespace MapControl
Children.Clear();
foreach (var tile in Tiles)
foreach (var tile in tiles)
{
Children.Add(tile.Image);
}
return true;
}
protected override Size MeasureOverride(Size availableSize)
@ -130,12 +124,12 @@ namespace MapControl
{
// arrange tiles relative to XMin/YMin
//
var x = TileMatrix.TileWidth * (tile.X - XMin);
var y = TileMatrix.TileHeight * (tile.Y - YMin);
var x = WmtsTileMatrix.TileWidth * (tile.X - TileMatrix.XMin);
var y = WmtsTileMatrix.TileHeight * (tile.Y - TileMatrix.YMin);
tile.Image.Width = TileMatrix.TileWidth;
tile.Image.Height = TileMatrix.TileHeight;
tile.Image.Arrange(new Rect(x, y, TileMatrix.TileWidth, TileMatrix.TileHeight));
tile.Image.Width = WmtsTileMatrix.TileWidth;
tile.Image.Height = WmtsTileMatrix.TileHeight;
tile.Image.Arrange(new Rect(x, y, WmtsTileMatrix.TileWidth, WmtsTileMatrix.TileHeight));
}
return finalSize;