jgrogan/stuff-from-scratch
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Simple dx render example.

Browse source
This commit is contained in:
jmsgrogan 2023-01-05 16:40:27 +00:00
parent 36515556b8
commit e0cad34d55
22 changed files with 339 additions and 60 deletions
Download patch file Download diff file Expand all files Collapse all files

31
src/mesh/TriFace.cpp
View file

@ -75,7 +75,34 @@ void TriFace::associateWidthEdges()
mEdge2->associateFace(mId);
}
std::vector<Point> TriFace::getNodeLocations() const
std::vector<Point> TriFace::getNodeLocations(Orientation orientation) const
{
return {mEdge0->getNode0()->getPoint(), mEdge0->getNode1()->getPoint(), mEdge1->getNode1()->getPoint()};
if (orientation != getOrientation())
{
return { mEdge0->getNode0()->getPoint(), mEdge0->getNode1()->getPoint(), mEdge1->getNode1()->getPoint() };
}
else
{
return { mEdge0->getNode0()->getPoint(), mEdge1->getNode1()->getPoint(), mEdge0->getNode1()->getPoint() };
}
}
Vector TriFace::getNormal() const
{
auto v0 = mEdge0->getNode0()->getPoint().getDelta(mEdge0->getNode1()->getPoint());
auto v1 = mEdge0->getNode0()->getPoint().getDelta(mEdge1->getNode1()->getPoint());
return v0.crossProduct(v1).getNormalized();
}
AbstractFace::Orientation TriFace::getOrientation() const
{
Vector z_norm(0, 0, 1);
if (z_norm.dotProduct(getNormal()) < 0.0)
{
return Orientation::CW;
}
else
{
return Orientation::CCW;
}
}