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Merge pull request #10 from nickcoutsos/master

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Invert flipped faces for polyRoundExtrude
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Kurt Hutten 2020-10-06 05:33:31 +11:00 committed by GitHub
commit e6d67b6304
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1 changed files with 11 additions and 2 deletions
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polyround.scad
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@ -29,6 +29,11 @@ let(
points[listWrap(i+1,lp)],
],thick=offset,mode=isCWorCCW)];
function reverseList(list) = [ for(i=[len(list) - 1:-1:0]) list[i] ];
// Apply `reverseList` to the array of vertex indices for an array of faces
function invertFaces(faces) = [ for(f=faces) reverseList(f) ];
function makeCurvedPartOfPolyHedron(radiiPoints,r,fn,minR=0.01)=
// this is a private function that I'm not expecting library users to use directly
// radiiPoints= serise of x, y, r points
@ -152,7 +157,7 @@ let(
topCapFace=[for(i=[0:singeLayerLength-1])radiusPointsLength-singeLayerLength+i],
bottomCapFace=[for(i=[0:singeLayerLength-1])radiusPointsLength*2-singeLayerLength+i],
finalPolyhedronPoints=concat(topRadiusPoints,bottomRadiusPoints),
finalPolyhedronFaces=concat(topRadiusFaces,bottomRadiusFaces, sideFaces, [topCapFace], [bottomCapFace])
finalPolyhedronFaces=concat(topRadiusFaces,invertFaces(bottomRadiusFaces),invertFaces(sideFaces),[topCapFace],invertFaces([bottomCapFace]))
)
[
finalPolyhedronPoints,
@ -160,7 +165,11 @@ let(
];
module polyRoundExtrude(radiiPoints,length=5,r1=1,r2=1,fn=10,convexity=10) {
polyhedronPointsNFaces=extrudePolygonWithRadius(radiiPoints,length,r1,r2,fn);
orderedRadiiPoints = CWorCCW(radiiPoints) == 1
? reverseList(radiiPoints)
: radiiPoints;
polyhedronPointsNFaces=extrudePolygonWithRadius(orderedRadiiPoints,length,r1,r2,fn);
polyhedron(points=polyhedronPointsNFaces[0], faces=polyhedronPointsNFaces[1], convexity=convexity);
}