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TechDraw: Implements projected Length dimension

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This commit is contained in:
Florian Foinant-Willig
2023-09-28 22:51:28 +02:00
committed by WandererFan
parent 0b875c1ecf
commit ed87ce0af0
1 changed files with 27 additions and 1 deletions
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28
src/Mod/TechDraw/App/DrawViewDimension.cpp
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@@ -42,6 +42,10 @@
# include <gp_Circ.hxx>
# include <gp_Elips.hxx>
# include <gp_Pnt.hxx>
# include <gp_Pnt2d.hxx>
# include <Geom_Plane.hxx>
# include <Geom2d_Curve.hxx>
# include <Geom2dAPI_ProjectPointOnCurve.hxx>
# include <TopExp.hxx>
# include <TopExp_Explorer.hxx>
# include <TopoDS_Edge.hxx>
@@ -745,7 +749,29 @@ pointPair DrawViewDimension::getPointsEdgeVert(ReferenceVector references)
if (!vertex || !edge) {
throw Base::RuntimeError("Missing geometry for dimension (4)");
}
return closestPoints(edge->getOCCEdge(), vertex->getOCCVertex());
//get curve from edge
double start, end; // curve parameters
const Handle(Geom_Surface) hplane = new Geom_Plane(gp_Ax3());
auto const occCurve = BRep_Tool::CurveOnPlane(edge->getOCCEdge()
, hplane
, TopLoc_Location()
, start
, end);
auto const occPoint = gp_Pnt2d(vertex->x(), vertex->y());
//project point on curve
auto projector = Geom2dAPI_ProjectPointOnCurve(occPoint, occCurve);
if (projector.NbPoints() > 0) {
auto p1 = Base::Vector3d(vertex->x(), vertex->y(), 0.0);
auto p2 = Base::Vector3d(projector.NearestPoint().X()
, projector.NearestPoint().Y()
, 0.0);
return pointPair(p1, p2);
}
else {
// unable to project
return closestPoints(edge->getOCCEdge(), vertex->getOCCVertex());
}
}
//this is a 3d object