void InitLabelFixture(Edge edge)
{
if (edge.Label == null)
{
return;
}
if (labelFixtures.ContainsKey(edge.EdgeGeometry))
{
return;
}
var attachmentPar = edge.Curve.ClosestParameter(edge.Label.Center);
var curve = edge.Curve;
var tang = curve.Derivative(attachmentPar);
var normal = tang.Rotate90Cw();
var fromCurveToLabel = edge.Label.Center - curve[attachmentPar];
var fixture = new LabelFixture()
{
RelativeLengthOnCurve = curve.LengthPartial(0, attachmentPar) / curve.Length,
NormalLength = fromCurveToLabel.Length,
RightSide = fromCurveToLabel * normal > 0
};
labelFixtures[edge.EdgeGeometry] = fixture;
}
void InitLabelFixture(Edge edge) {
if (edge.Label == null) return;
if (labelFixtures.ContainsKey(edge.EdgeGeometry)) return;
var attachmentPar = edge.Curve.ClosestParameter(edge.Label.Center);
var curve = edge.Curve;
var tang = curve.Derivative(attachmentPar);
var normal = tang.Rotate90Cw();
var fromCurveToLabel = edge.Label.Center - curve[attachmentPar];
var fixture = new LabelFixture() {
RelativeLengthOnCurve = curve.LengthPartial(0, attachmentPar)/curve.Length,
NormalLength = fromCurveToLabel.Length,
RightSide = fromCurveToLabel*normal>0
};
labelFixtures[edge.EdgeGeometry] = fixture;
}