public void TrimSplineOnLineTest2()
{
// _______|_ _______|
// / | \ / | \
// / | \ / |
// | | |o | |
// | | | => | | |
// \ | / \ | /
// \ | / \ | /
// -------|- -------|_
var sqrt2over2 = Math.Sqrt(2.0) / 2.0;
var unitCircle = new PrimitiveEllipse(Point.Origin, 1.0, Vector.ZAxis);
var circleSpline = Spline.FromBeziers(unitCircle.AsBezierCurves());
var trimLine = new Line(new Point(sqrt2over2, -1.0, 0.0), new Point(sqrt2over2, 1.0, 0.0));
// 45-90 degrees
var q1trimBezier = new PrimitiveBezier(
new Point(0.70696813418525, 0.70696813418525, 0.0),
new Point(0.525957512247, 0.8879787561235, 0.0),
new Point(0.275957512247, 1.0, 0.0),
new Point(0.0, 1.0, 0.0));
// 270-315 degrees
var q4trimBezier = new PrimitiveBezier(
new Point(0.0, -1.0, 0.0),
new Point(0.275957512247, -1.0, 0.0),
new Point(0.525957512247, -0.8879787561235, 0.0),
new Point(0.70696813418525, -0.70696813418525, 0.0));
var selectionPoint = new Point(Math.Cos(1.0 * MathHelper.DegreesToRadians), Math.Sin(1.0 * MathHelper.DegreesToRadians), 0.0); // one degree up
var resultSpline = Spline.FromBeziers(new[]
{
new PrimitiveBezier(new Point(1.0, 0.0, 0.0), new Point(1.0, -0.551915024494, 0.0), new Point(0.551915024494, -1.0, 0.0), new Point(0.0, -1.0, 0.0)),
new PrimitiveBezier(new Point(0.0, 1.0, 0.0), new Point(0.27602797672647056, 1.0, 0.0), new Point(0.5260851832511362, 0.8879215406024443, 0.0), new Point(0.7071067813752437, 0.7068294600060859, 0.0)),
});
DoTrim(
existingEntities: new[] { trimLine },
entityToTrim: circleSpline,
selectionPoint: selectionPoint,
expectTrim: true,
expectedAdded: new[] { resultSpline });
}
