ClemensFischer/XAML-Map-Control
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ClemensFischer 2022-11-30 22:18:45 +01:00
parent 9db1987ee5
commit 754e185c5d
20 changed files with 83 additions and 48 deletions
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10
MapControl/Shared/ViewTransform.cs
View file

@ -93,13 +93,13 @@ namespace MapControl
transform.Rotate(Rotation);
// tile matrix origin in map coordinates
// Tile matrix origin in map coordinates.
//
var mapOrigin = new Point(
tileMatrixTopLeft.X + tileMatrixOrigin.X / tileMatrixScale,
tileMatrixTopLeft.Y - tileMatrixOrigin.Y / tileMatrixScale);
// tile matrix origin in view coordinates
// Tile matrix origin in view coordinates.
//
var viewOrigin = MapToView(mapOrigin);
@ -115,17 +115,17 @@ namespace MapControl
transform.Rotate(-Rotation);
// view origin in map coordinates
// View origin in map coordinates.
//
var origin = ViewToMap(new Point());
// translate origin to tile matrix origin in pixels
// Translate origin to tile matrix origin in pixels.
//
transform.Translate(
tileMatrixScale * (origin.X - tileMatrixTopLeft.X),
tileMatrixScale * (tileMatrixTopLeft.Y - origin.Y));
// transform view bounds to tile pixel bounds
// Transform view bounds to tile pixel bounds.
//
return new MatrixTransform { Matrix = transform }
.TransformBounds(new Rect(0d, 0d, viewSize.Width, viewSize.Height));