| public static RotateAt ( Matrix &matrix, double angle, double centerX, double centerY ) : void | ||
| matrix | Matrix | |
| angle | double | |
| centerX | double | |
| centerY | double | |
| return | void | |
private static void UpdateRenderTransform(UIElement renderedGeometry, IViewport viewport)
{
var matrix = XamlMedia.Matrix.Identity;
if (viewport.IsRotated)
{
var center = viewport.WorldToScreen(viewport.Center);
MatrixHelper.RotateAt(ref matrix, viewport.Rotation, center.X, center.Y);
}
renderedGeometry.RenderTransform = new XamlMedia.MatrixTransform {
Matrix = matrix
};
}
private static XamlMedia.Matrix CreateTransformMatrix1(IViewport viewport)
{
var matrix = XamlMedia.Matrix.Identity;
var mapCenterX = viewport.Width * 0.5;
var mapCenterY = viewport.Height * 0.5;
MatrixHelper.Translate(ref matrix, mapCenterX - viewport.Center.X, mapCenterY - viewport.Center.Y);
if (viewport.IsRotated)
{
MatrixHelper.RotateAt(ref matrix, -viewport.Rotation);
}
MatrixHelper.ScaleAt(ref matrix, 1 / viewport.Resolution, 1 / viewport.Resolution, mapCenterX, mapCenterY);
// This will invert the Y axis, but will also put images upside down
MatrixHelper.InvertY(ref matrix, mapCenterY);
return(matrix);
}
private static XamlMedia.Matrix CreatePointSymbolMatrix(double resolution, SymbolStyle symbolStyle)
{
var matrix = XamlMedia.Matrix.Identity;
MatrixHelper.InvertY(ref matrix);
var centerX = symbolStyle.SymbolOffset.X;
var centerY = symbolStyle.SymbolOffset.Y;
var scale = symbolStyle.SymbolScale;
MatrixHelper.Translate(ref matrix, centerX, centerY);
MatrixHelper.ScaleAt(ref matrix, scale, scale);
//for point symbols we want the size to be independent from the resolution. We do this by counter scaling first.
if (symbolStyle.UnitType != UnitType.WorldUnit)
{
MatrixHelper.ScaleAt(ref matrix, resolution, resolution);
}
MatrixHelper.RotateAt(ref matrix, -symbolStyle.SymbolRotation);
return(matrix);
}
