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Update GeoImage.cs

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ClemensFischer 2024-08-31 15:56:58 +02:00
parent 4c48f823bd
commit 84cd6e2f9a
1 changed files with 43 additions and 43 deletions
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86
MapControl/Shared/GeoImage.cs
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@ -72,68 +72,68 @@ namespace MapControl
private async Task ReadGeoImageAsync(string sourcePath) private async Task ReadGeoImageAsync(string sourcePath)
{ {
GeoBitmap geoBitmap = null; GeoBitmap geoBitmap = null;
var ext = Path.GetExtension(sourcePath); var ext = Path.GetExtension(sourcePath);
if (ext.Length >= 4) if (ext.Length >= 4)
{
var dir = Path.GetDirectoryName(sourcePath);
var file = Path.GetFileNameWithoutExtension(sourcePath);
var worldFilePath = Path.Combine(dir, file + ext.Remove(2, 1) + "w");
if (File.Exists(worldFilePath))
{ {
var dir = Path.GetDirectoryName(sourcePath); geoBitmap = await ReadWorldFileImageAsync(sourcePath, worldFilePath);
var file = Path.GetFileNameWithoutExtension(sourcePath);
var worldFilePath = Path.Combine(dir, file + ext.Remove(2, 1) + "w");
if (File.Exists(worldFilePath))
{
geoBitmap = await ReadWorldFileImageAsync(sourcePath, worldFilePath);
}
} }
}
if (geoBitmap == null) if (geoBitmap == null)
{ {
#if AVALONIA #if AVALONIA
return; return;
#else #else
geoBitmap = await ReadGeoTiffAsync(sourcePath); geoBitmap = await ReadGeoTiffAsync(sourcePath);
#endif #endif
} }
var image = new Image var image = new Image
{ {
Source = geoBitmap.Bitmap, Source = geoBitmap.Bitmap,
Stretch = Stretch.Fill, Stretch = Stretch.Fill,
HorizontalAlignment = HorizontalAlignment.Stretch, HorizontalAlignment = HorizontalAlignment.Stretch,
VerticalAlignment = VerticalAlignment.Stretch VerticalAlignment = VerticalAlignment.Stretch
}; };
var transform = geoBitmap.Transform; var transform = geoBitmap.Transform;
if (transform.M12 != 0 && transform.M21 != 0) if (transform.M12 != 0 && transform.M21 != 0)
{ {
var rotation = (Math.Atan2(transform.M12, transform.M11) + Math.Atan2(transform.M21, -transform.M22)) * 90d / Math.PI; var rotation = (Math.Atan2(transform.M12, transform.M11) + Math.Atan2(transform.M21, -transform.M22)) * 90d / Math.PI;
image.RenderTransform = new RotateTransform { Angle = -rotation }; image.RenderTransform = new RotateTransform { Angle = -rotation };
// Calculate effective unrotated transform. // Calculate effective unrotated transform.
// //
geoBitmap.Transform = new Matrix( geoBitmap.Transform = new Matrix(
Math.Sqrt(transform.M11 * transform.M11 + transform.M12 * transform.M12), 0d, 0d, Math.Sqrt(transform.M11 * transform.M11 + transform.M12 * transform.M12), 0d, 0d,
-Math.Sqrt(transform.M22 * transform.M22 + transform.M21 * transform.M21), 0d, 0d); -Math.Sqrt(transform.M22 * transform.M22 + transform.M21 * transform.M21), 0d, 0d);
} }
#if AVALONIA #if AVALONIA
var size = new Point(geoBitmap.Bitmap.PixelSize.Width, geoBitmap.Bitmap.PixelSize.Height); var size = new Point(geoBitmap.Bitmap.PixelSize.Width, geoBitmap.Bitmap.PixelSize.Height);
#else #else
var size = new Point(geoBitmap.Bitmap.PixelWidth, geoBitmap.Bitmap.PixelHeight); var size = new Point(geoBitmap.Bitmap.PixelWidth, geoBitmap.Bitmap.PixelHeight);
#endif #endif
var rect = new Rect(transform.Transform(new Point()), transform.Transform(size)); var rect = new Rect(transform.Transform(new Point()), transform.Transform(size));
var boundingBox = geoBitmap.Projection != null var boundingBox = geoBitmap.Projection != null
? geoBitmap.Projection.MapToBoundingBox(rect) ? geoBitmap.Projection.MapToBoundingBox(rect)
: new BoundingBox(rect.Y, rect.X, rect.Y + rect.Height, rect.X + rect.Width); : new BoundingBox(rect.Y, rect.X, rect.Y + rect.Height, rect.X + rect.Width);
MapPanel.SetBoundingBox(this, boundingBox); MapPanel.SetBoundingBox(this, boundingBox);
Children.Clear(); Children.Clear();
Children.Add(image); Children.Add(image);
} }
private static async Task<GeoBitmap> ReadWorldFileImageAsync(string sourcePath, string worldFilePath) private static async Task<GeoBitmap> ReadWorldFileImageAsync(string sourcePath, string worldFilePath)