What an operation made of the faces, edges and vertices of one shape it was given, as lists of
indexes: faces as shapes.face.getFaces lists them, edges as shapes.edge.getEdges does and
vertices as shapes.vertex.getVertices does, of the input and the result alike. faces[i] holds
the result faces input face i became: itself where it is unchanged, its pieces where it was cut,
none where it is gone. facesFromFaces[i] holds the result faces made from input face i, such as
the inner wall a thick solid offsets from it, and edgesFromFaces[i] the result edges made from it,
such as where a boolean cut it. facesFromEdges[i] holds the result faces made from input edge i,
such as the round a fillet puts along it or the side a sweep makes of it; firstFaces and
lastFaces are where a sweep, a loft or a feature starts and ends.
What an operation made of the faces, edges and vertices of one shape it was given, as lists of indexes: faces as
shapes.face.getFaceslists them, edges asshapes.edge.getEdgesdoes and vertices asshapes.vertex.getVerticesdoes, of the input and the result alike.faces[i]holds the result faces input faceibecame: itself where it is unchanged, its pieces where it was cut, none where it is gone.facesFromFaces[i]holds the result faces made from input facei, such as the inner wall a thick solid offsets from it, andedgesFromFaces[i]the result edges made from it, such as where a boolean cut it.facesFromEdges[i]holds the result faces made from input edgei, such as the round a fillet puts along it or the side a sweep makes of it;firstFacesandlastFacesare where a sweep, a loft or a feature starts and ends.