ClemensFischer/XAML-Map-Control
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ImageLoader

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ClemensFischer 2025-01-01 19:45:40 +01:00
parent 560f44a139
commit 069072ce34
6 changed files with 73 additions and 71 deletions
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16
MapControl/WinUI/GeoImage.WinUI.cs
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@ -18,9 +18,9 @@ namespace MapControl
{
private static async Task<GeoBitmap> LoadGeoTiffAsync(string sourcePath)
{
BitmapSource bitmapSource;
Matrix transformMatrix;
MapProjection mapProjection = null;
BitmapSource bitmap;
Matrix transform;
MapProjection projection = null;
var file = await StorageFile.GetFileFromPathAsync(FilePath.GetFullPath(sourcePath));
@ -28,7 +28,7 @@ namespace MapControl
{
var decoder = await BitmapDecoder.CreateAsync(stream);
bitmapSource = await ImageLoader.LoadWriteableBitmapAsync(decoder);
bitmap = await ImageLoader.LoadWriteableBitmapAsync(decoder);
var geoKeyDirectoryQuery = QueryString(GeoKeyDirectoryTag);
var pixelScaleQuery = QueryString(ModelPixelScaleTag);
@ -50,13 +50,13 @@ namespace MapControl
tiePointValue.Value is double[] tiePoint &&
tiePoint.Length >= 6)
{
transformMatrix = new Matrix(pixelScale[0], 0d, 0d, -pixelScale[1], tiePoint[3], tiePoint[4]);
transform = new Matrix(pixelScale[0], 0d, 0d, -pixelScale[1], tiePoint[3], tiePoint[4]);
}
else if (metadata.TryGetValue(transformationQuery, out BitmapTypedValue transformValue) &&
transformValue.Value is double[] transformValues &&
transformValues.Length == 16)
{
transformMatrix = new Matrix(transformValues[0], transformValues[1],
transform = new Matrix(transformValues[0], transformValues[1],
transformValues[4], transformValues[5],
transformValues[3], transformValues[7]);
}
@ -68,11 +68,11 @@ namespace MapControl
if (metadata.TryGetValue(geoKeyDirectoryQuery, out BitmapTypedValue geoKeyDirValue) &&
geoKeyDirValue.Value is short[] geoKeyDirectory)
{
mapProjection = GetProjection(geoKeyDirectory);
projection = GetProjection(geoKeyDirectory);
}
}
return new GeoBitmap(bitmapSource, transformMatrix, mapProjection);
return new GeoBitmap(bitmap, transform, projection);
}
}
}