//--------------------------------------------------------------
void ofxFatLine::updateVertex(int index){
if (index == 0 && getVertices().size() >1){
updateCap(getVertices()[index+1], getVertices()[index], index);
}else if(index == getVertices().size()-1 && getVertices().size() >1) {
updateCap(getVertices()[index-1], getVertices()[index], index);
}else if ( getVertices().size() >2){
ofVec3f a (getVertices()[index-1] - getVertices()[index]);
ofVec3f b (getVertices()[index+1] - getVertices()[index]);
float angle = a.angle(b);
ofVec3f p = getMidVector(a, b);
///Limits midvector length to avoid strange behaviour when angles are small.
float hyp = MIN(a.length(), b.length());
hyp *= hyp;
hyp += weights[index] * weights[index];
hyp = sqrt(hyp);
//------
bool flip = !sameSideOfLine(p, flippepMidVectors.back(), getVertices()[index-1], getVertices()[index]);
float cs = cos(DEG_TO_RAD * (90 - angle*0.5f));
pushNewVertex(getVertices()[index], p, a.cross(ofVec3f(0,0,1).normalized()), b.cross(ofVec3f(0,0,1).normalized()),hyp, index, cs, flip);
}
}
void alloc_Vertex(lua_State* L, ge_Vertex* vertex){
lua_createtable(L, 0, 0);
luaL_setfuncs(L, Vertex_methods, 0);
*pushNewVertex(L) = vertex;
lua_setfield(L, -2, "vertex");
lua_createtable(L, 0, 0);
luaL_setfuncs(L, Vertex_meta, 0);
lua_setmetatable(L, -2);
}
