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Merge pull request #10 from nickcoutsos/master

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Invert flipped faces for polyRoundExtrude
This commit is contained in:
Kurt Hutten
2020-10-06 05:33:31 +11:00
committed by GitHub
parent 0697444270 8d5b6a180b
commit e6d67b6304
1 changed files with 11 additions and 2 deletions
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13
polyround.scad
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@@ -29,6 +29,11 @@ let(
points[listWrap(i+1,lp)], points[listWrap(i+1,lp)],
],thick=offset,mode=isCWorCCW)]; ],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)= function makeCurvedPartOfPolyHedron(radiiPoints,r,fn,minR=0.01)=
// this is a private function that I'm not expecting library users to use directly // this is a private function that I'm not expecting library users to use directly
// radiiPoints= serise of x, y, r points // radiiPoints= serise of x, y, r points
@@ -152,7 +157,7 @@ let(
topCapFace=[for(i=[0:singeLayerLength-1])radiusPointsLength-singeLayerLength+i], topCapFace=[for(i=[0:singeLayerLength-1])radiusPointsLength-singeLayerLength+i],
bottomCapFace=[for(i=[0:singeLayerLength-1])radiusPointsLength*2-singeLayerLength+i], bottomCapFace=[for(i=[0:singeLayerLength-1])radiusPointsLength*2-singeLayerLength+i],
finalPolyhedronPoints=concat(topRadiusPoints,bottomRadiusPoints), finalPolyhedronPoints=concat(topRadiusPoints,bottomRadiusPoints),
finalPolyhedronFaces=concat(topRadiusFaces,bottomRadiusFaces, sideFaces, [topCapFace], [bottomCapFace]) finalPolyhedronFaces=concat(topRadiusFaces,invertFaces(bottomRadiusFaces),invertFaces(sideFaces),[topCapFace],invertFaces([bottomCapFace]))
) )
[ [
finalPolyhedronPoints, finalPolyhedronPoints,
@@ -160,7 +165,11 @@ let(
]; ];
module polyRoundExtrude(radiiPoints,length=5,r1=1,r2=1,fn=10,convexity=10) { 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); polyhedron(points=polyhedronPointsNFaces[0], faces=polyhedronPointsNFaces[1], convexity=convexity);
} }