ClemensFischer/XAML-Map-Control
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Changed SourceUri to SourcePath

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This commit is contained in:
Clemens 2022-01-18 23:38:25 +01:00
parent b04ed4eebe
commit 9cb37ba921
3 changed files with 33 additions and 41 deletions
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15
MapControl/WPF/GeoImage.WPF.cs
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@ -3,6 +3,7 @@
// Licensed under the Microsoft Public License (Ms-PL)
using System;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Media;
@ -12,14 +13,20 @@ namespace MapControl
{
public partial class GeoImage
{
private static async Task<Tuple<BitmapSource, Matrix>> ReadGeoTiff(Uri sourceUri)
private static async Task<Tuple<BitmapSource, Matrix>> ReadGeoTiff(string sourcePath)
{
return await Task.Run(() =>
{
BitmapSource bitmap = BitmapFrame.Create(sourceUri, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
var metadata = (BitmapMetadata)bitmap.Metadata;
BitmapSource bitmap;
Matrix transform;
using (var stream = File.OpenRead(sourcePath))
{
bitmap = BitmapFrame.Create(stream, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
}
var metadata = (BitmapMetadata)bitmap.Metadata;
if (metadata.GetQuery(PixelScaleQuery) is double[] pixelScale && pixelScale.Length == 3 &&
metadata.GetQuery(TiePointQuery) is double[] tiePoint && tiePoint.Length >= 6)
{
@ -31,7 +38,7 @@ namespace MapControl
}
else
{
throw new ArgumentException("No coordinate transformation found in \"" + sourceUri + "\".");
throw new ArgumentException("No coordinate transformation found in \"" + sourcePath + "\".");
}
if (metadata.GetQuery(NoDataQuery) is string noData && int.TryParse(noData, out int noDataValue))