ClemensFischer/XAML-Map-Control
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This commit is contained in:
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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20
MapControl/WPF/GeoImage.WPF.cs
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@ -17,28 +17,28 @@ namespace MapControl
{
return Task.Run(() =>
{
BitmapSource bitmapSource;
Matrix transformMatrix;
MapProjection mapProjection = null;
BitmapSource bitmap;
Matrix transform;
MapProjection projection = null;
using (var stream = File.OpenRead(sourcePath))
{
bitmapSource = BitmapFrame.Create(stream, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
bitmap = BitmapFrame.Create(stream, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
}
var metadata = (BitmapMetadata)bitmapSource.Metadata;
var metadata = (BitmapMetadata)bitmap.Metadata;
if (metadata.GetQuery(QueryString(ModelPixelScaleTag)) is double[] pixelScale &&
pixelScale.Length == 3 &&
metadata.GetQuery(QueryString(ModelTiePointTag)) 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.GetQuery(QueryString(ModelTransformationTag)) 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]);
}
@ -49,16 +49,16 @@ namespace MapControl
if (metadata.GetQuery(QueryString(GeoKeyDirectoryTag)) is short[] geoKeyDirectory)
{
mapProjection = GetProjection(geoKeyDirectory);
projection = GetProjection(geoKeyDirectory);
}
if (metadata.GetQuery(QueryString(NoDataTag)) is string noData &&
int.TryParse(noData, out int noDataValue))
{
bitmapSource = ConvertTransparentPixel(bitmapSource, noDataValue);
bitmap = ConvertTransparentPixel(bitmap, noDataValue);
}
return new GeoBitmap(bitmapSource, transformMatrix, mapProjection);
return new GeoBitmap(bitmap, transform, projection);
});
}