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[TD]oblique section lines

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wandererfan
2020-05-06 19:19:05 -04:00
committed by WandererFan
parent b3290e0352
commit 29c5528fde
7 changed files with 228 additions and 133 deletions
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32
src/Mod/TechDraw/App/DrawViewSection.cpp
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@@ -677,6 +677,38 @@ TopoDS_Face DrawViewSection::projectFace(const TopoDS_Shape &face,
return projectedFace;
}
//calculate the ends of the section line in BaseView's coords
std::pair<Base::Vector3d, Base::Vector3d> DrawViewSection::sectionLineEnds(void)
{
std::pair<Base::Vector3d, Base::Vector3d> result;
auto sNorm = SectionNormal.getValue();
double angle = M_PI / 2.0;
auto axis = getBaseDVP()->Direction.getValue();
Base::Vector3d stdOrg(0.0, 0.0, 0.0);
Base::Vector3d sLineDir = DrawUtil::vecRotate(sNorm, angle, axis, stdOrg);
sLineDir.Normalize();
Base::Vector3d sLineDir2 = - axis.Cross(sNorm);
sLineDir2.Normalize();
Base::Vector3d sLineOnBase = getBaseDVP()->projectPoint(sLineDir2);
sLineOnBase.Normalize();
auto sOrigin = SectionOrigin.getValue();
Base::Vector3d adjSectionOrg = sOrigin - getBaseDVP()->getOriginalCentroid();
Base::Vector3d sOrgOnBase = getBaseDVP()->projectPoint(adjSectionOrg);
sOrgOnBase /= getScale();
auto bbx = getBaseDVP()->getBoundingBox();
double xRange = bbx.MaxX - bbx.MinX;
xRange /= getScale();
double yRange = bbx.MaxY - bbx.MinY;
yRange /= getScale();
result = DrawUtil::boxIntersect2d(sOrgOnBase, sLineOnBase, xRange, yRange);
return result;
}
//this should really be in BoundBox.h
//!check if point is in box or on boundary of box
//!compare to isInBox which doesn't allow on boundary