ClemensFischer/XAML-Map-Control
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Version 4.12. Added MapControl.Images project

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ClemensF 2018-12-12 17:51:24 +01:00
parent ccb77b30c9
commit 7d4b2ee68b
3 changed files with 8 additions and 59 deletions
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52
MapImages/Shared/WorldFile.cs
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@ -77,57 +77,5 @@ namespace MapControl.Images
SetWorldImage(image, bitmap, parameters, projection); SetWorldImage(image, bitmap, parameters, projection);
} }
public static FrameworkElement CreateWorldImage(BitmapSource bitmap, WorldFileParameters parameters)
{
if (parameters.XScale == 0d || parameters.YScale == 0d)
{
throw new ArgumentException("Invalid WorldFileParameters, XScale and YScale must be non-zero.");
}
var pixelWidth = parameters.XScale;
var pixelHeight = parameters.YScale;
var rotation = 0d;
if (parameters.YSkew != 0 || parameters.XSkew != 0)
{
pixelWidth = Math.Sqrt(parameters.XScale * parameters.XScale + parameters.YSkew * parameters.YSkew);
pixelHeight = Math.Sqrt(parameters.YScale * parameters.YScale + parameters.XSkew * parameters.XSkew);
var xAxisRotation = Math.Atan2(parameters.YSkew, parameters.XScale) / Math.PI * 180d;
var yAxisRotation = Math.Atan2(parameters.XSkew, -parameters.YScale) / Math.PI * 180d;
rotation = 0.5 * (xAxisRotation + yAxisRotation);
}
var x1 = parameters.XOrigin;
var x2 = parameters.XOrigin + pixelWidth * bitmap.PixelWidth;
var y1 = parameters.YOrigin;
var y2 = parameters.YOrigin + pixelHeight * bitmap.PixelHeight;
var bbox = new BoundingBox
{
West = Math.Min(x1, x2),
East = Math.Max(x1, x2),
South = Math.Min(y1, y2),
North = Math.Max(y1, y2)
};
FrameworkElement image = new Image
{
Source = bitmap,
Stretch = Stretch.Fill
};
if (rotation != 0d)
{
image.RenderTransform = new RotateTransform { Angle = rotation };
var panel = new Grid();
panel.Children.Add(image);
image = panel;
}
MapPanel.SetBoundingBox(image, bbox);
return image;
}
} }
} }

12
MapImages/Shared/WorldFileParameters.cs
View file

@ -54,12 +54,12 @@ namespace MapControl.Images
YOrigin = yorigin; YOrigin = yorigin;
} }
public double XScale { get; set; } public double XScale { get; set; } // A
public double YSkew { get; set; } public double YSkew { get; set; } // D
public double XSkew { get; set; } public double XSkew { get; set; } // B
public double YScale { get; set; } public double YScale { get; set; } // E
public double XOrigin { get; set; } public double XOrigin { get; set; } // C
public double YOrigin { get; set; } public double YOrigin { get; set; } // F
public BoundingBox GetBoundingBox(double imageWidth, double imageHeight, MapProjection projection = null) public BoundingBox GetBoundingBox(double imageWidth, double imageHeight, MapProjection projection = null)
{ {

3
MapImages/Shared/ZoomLevelToOpacityConverter.cs
View file

@ -19,6 +19,7 @@ namespace MapControl.Images
public double MinZoomLevel { get; set; } = 0d; public double MinZoomLevel { get; set; } = 0d;
public double MaxZoomLevel { get; set; } = 22d; public double MaxZoomLevel { get; set; } = 22d;
public double FadeZoomRange { get; set; } = 1d; public double FadeZoomRange { get; set; } = 1d;
public double MaxOpacity { get; set; } = 1d;
public object Convert(object value, Type targetType, object parameter, CultureInfo culture) public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{ {
@ -32,7 +33,7 @@ namespace MapControl.Images
if (zoomLevel > MinZoomLevel && zoomLevel < MaxZoomLevel) if (zoomLevel > MinZoomLevel && zoomLevel < MaxZoomLevel)
{ {
opacity = 1d; opacity = MaxOpacity;
if (FadeZoomRange > 0d) if (FadeZoomRange > 0d)
{ {