ClemensFischer/XAML-Map-Control
1
0
Fork 0
mirror of https://github.com/ClemensFischer/XAML-Map-Control.git synced 2025-12-06 07:12:04 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Update GeoImage.cs

Browse source
This commit is contained in:
ClemensFischer 2024-08-31 13:00:16 +02:00
parent 71c435c323
commit 4c48f823bd
1 changed files with 38 additions and 28 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

66
MapControl/Shared/GeoImage.cs
View file

@ -3,6 +3,7 @@
// Licensed under the Microsoft Public License (Ms-PL)
using System;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
@ -58,6 +59,19 @@ namespace MapControl
{
if (sourcePath != null)
{
try
{
await ReadGeoImageAsync(sourcePath);
}
catch (Exception ex)
{
Debug.WriteLine($"GeoImage: {ex.Message}");
}
}
}
private async Task ReadGeoImageAsync(string sourcePath)
{
GeoBitmap geoBitmap = null;
var ext = Path.GetExtension(sourcePath);
@ -120,7 +134,6 @@ namespace MapControl
Children.Clear();
Children.Add(image);
}
}
private static async Task<GeoBitmap> ReadWorldFileImageAsync(string sourcePath, string worldFilePath)
@ -129,37 +142,34 @@ namespace MapControl
geoBitmap.Bitmap = (BitmapSource)await ImageLoader.LoadImageAsync(sourcePath);
geoBitmap.Transform = await Task.Run(() =>
{
var parameters = File.ReadLines(worldFilePath)
.Take(6)
.Select((line, i) =>
{
if (!double.TryParse(line, NumberStyles.Float, CultureInfo.InvariantCulture, out double parameter))
{
throw new ArgumentException($"Failed parsing line {i + 1} in world file {worldFilePath}.");
}
return parameter;
})
.ToList();
if (parameters.Count != 6)
{
throw new ArgumentException($"Insufficient number of parameters in world file {worldFilePath}.");
}
return new Matrix(
parameters[0], // line 1: A or M11
parameters[1], // line 2: D or M12
parameters[2], // line 3: B or M21
parameters[3], // line 4: E or M22
parameters[4], // line 5: C or OffsetX
parameters[5]); // line 6: F or OffsetY
});
geoBitmap.Transform = await Task.Run(() => ReadWorldFileMatrix(worldFilePath));
return geoBitmap;
}
private static Matrix ReadWorldFileMatrix(string worldFilePath)
{
var parameters = File.ReadLines(worldFilePath)
.Select(line => double.TryParse(line, NumberStyles.Float, CultureInfo.InvariantCulture, out double p) ? (double?)p : null)
.Where(p => p.HasValue)
.Select(p => p.Value)
.Take(6)
.ToList();
if (parameters.Count != 6)
{
throw new ArgumentException($"Insufficient number of parameters in world file {worldFilePath}.");
}
return new Matrix(
parameters[0], // line 1: A or M11
parameters[1], // line 2: D or M12
parameters[2], // line 3: B or M21
parameters[3], // line 4: E or M22
parameters[4], // line 5: C or OffsetX
parameters[5]); // line 6: F or OffsetY
}
private static MapProjection GetProjection(string sourcePath, short[] geoKeyDirectory)
{
MapProjection projection = null;