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Avalonia GeoImage

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ClemensFischer 2024-05-31 19:51:37 +02:00
parent 5718f68608
commit 1f72ddd76d
6 changed files with 97 additions and 100 deletions
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19
MapControl/WinUI/GeoImage.WinUI.cs
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@ -17,11 +17,10 @@ namespace MapControl
using (var stream = await file.OpenReadAsync())
{
Matrix transform;
MapProjection projection = null;
var geoBitmap = new GeoBitmap();
var decoder = await BitmapDecoder.CreateAsync(stream);
var bitmap = await ImageLoader.LoadImageAsync(decoder);
geoBitmap.Bitmap = await ImageLoader.LoadImageAsync(decoder);
var geoKeyDirectoryQuery = QueryString(GeoKeyDirectoryTag);
var pixelScaleQuery = QueryString(ModelPixelScaleTag);
@ -43,15 +42,15 @@ namespace MapControl
tiePointValue.Value is double[] tiePoint &&
tiePoint.Length >= 6)
{
transform = new Matrix(pixelScale[0], 0d, 0d, -pixelScale[1], tiePoint[3], tiePoint[4]);
geoBitmap.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)
{
transform = new Matrix(transformValues[0], transformValues[1],
transformValues[4], transformValues[5],
transformValues[3], transformValues[7]);
geoBitmap.Transform = new Matrix(transformValues[0], transformValues[1],
transformValues[4], transformValues[5],
transformValues[3], transformValues[7]);
}
else
{
@ -61,10 +60,10 @@ namespace MapControl
if (metadata.TryGetValue(geoKeyDirectoryQuery, out BitmapTypedValue geoKeyDirValue) &&
geoKeyDirValue.Value is short[] geoKeyDirectory)
{
projection = GetProjection(sourcePath, geoKeyDirectory);
geoBitmap.Projection = GetProjection(sourcePath, geoKeyDirectory);
}
return new GeoBitmap(bitmap, transform, projection);
return geoBitmap;
}
}
}