public virtual void TransformPathTest()
{
Line inLine = new Line(new Point(0, 0), new Point(10, 10));
BezierCurve inBezierCurve = new BezierCurve(JavaUtil.ArraysAsList(new Point(0, 0), new Point(0, 5), new Point
(5, 5), new Point(5, 0)));
Subpath inSubpath = new Subpath();
inSubpath.AddSegment(inLine);
inSubpath.AddSegment(inBezierCurve);
Path inPath = new Path(JavaUtil.ArraysAsList(inSubpath));
Matrix ctm = new Matrix(1, 0, 0, 1, 5, 5);
Path outPath = ShapeTransformUtil.TransformPath(inPath, ctm);
Line cmpLine = new Line(new Point(-5, -5), new Point(5, 5));
BezierCurve cmpBezierCurve = new BezierCurve(JavaUtil.ArraysAsList(new Point(-5, -5), new Point(-5, 0), new
Point(0, 0), new Point(0, -5)));
Subpath cmpSubpath = new Subpath();
inSubpath.AddSegment(cmpLine);
inSubpath.AddSegment(cmpBezierCurve);
Path cmpPath = new Path(JavaUtil.ArraysAsList(cmpSubpath));
for (int i = 0; i < cmpPath.GetSubpaths().Count; i++)
{
Subpath subpath = cmpPath.GetSubpaths()[i];
for (int j = 0; j < subpath.GetSegments().Count; j++)
{
IShape cmpShape = subpath.GetSegments()[j];
IShape outShape = outPath.GetSubpaths()[i].GetSegments()[j];
NUnit.Framework.Assert.AreEqual(cmpShape.GetBasePoints().ToArray(), outShape.GetBasePoints().ToArray());
}
}
}
/// <summary>Approximates a given Path with a List of Point objects</summary>
/// <param name="path">input path</param>
private static IList <Point> GetPathApproximation(Path path)
{
IList <Point> approx = new ApproxPoints();
foreach (Subpath subpath in path.GetSubpaths())
{
approx.AddAll(subpath.GetPiecewiseLinearApproximation());
}
return(approx);
}
/// <summary>Method for transforming a path.</summary>
/// <remarks>
/// Method for transforming a path.
/// The method creates a new transformed path without changing the original path.
/// </remarks>
/// <param name="path">the source path for transformation</param>
/// <param name="ctm">the transformation matrix</param>
/// <returns>the new transformed path</returns>
public static Path TransformPath(Path path, Matrix ctm)
{
Path newPath = new Path();
foreach (Subpath subpath in path.GetSubpaths())
{
Subpath transformedSubpath = TransformSubpath(subpath, ctm);
newPath.AddSubpath(transformedSubpath);
}
return(newPath);
}