Method evaluate

src/module/prismmodule.cpp:34–108

}

Node* PrismModule::evaluate(const Context& ctx) const
{
	auto* heightVal = dynamic_cast<NumberValue*>(getParameterArgument(ctx,0));
	decimal h=1.0;
	if(heightVal)
		h=heightVal->getNumber();

	int s=3;
	auto* sidesVal = dynamic_cast<NumberValue*>(getParameterArgument(ctx,1));
	if(sidesVal)
		s=sidesVal->toInteger();

	auto* pn=new PrimitiveNode();
	Primitive* p=pn->createPrimitive();
	pn->setChildren(ctx.getInputNodes());

	if(h==0.0||s<=0.0)
		return pn;

	decimal r=1.0;
	decimal a=1.0;
	auto* apothemVal = dynamic_cast<NumberValue*>(getParameterArgument(ctx,2));
	if(apothemVal) {
		a=apothemVal->getNumber();
		r=a/r_cos(r_pi()/s);
	} else {
		NumberValue* radiusVal = dynamic_cast<NumberValue*>(ctx.getArgument(2,"radius"));
		if(radiusVal) {
			r=radiusVal->getNumber();
			a=r*r_cos(r_pi()/s);
		}
	}

	Value* centerVal = getParameterArgument(ctx,3);
	bool center=false;
	if(centerVal)
		center=centerVal->isTrue();

	decimal z1=0.0;
	decimal z2=h;

	const QList<Point> p1=getPolygon(a,r,s,z1);
	const QList<Point> p2=getPolygon(a,r,s,z2);

	if(r>0.0) {
		int n=0;
		Polygon& pg0=p->createPolygon();
		for(const auto& pt: p1) {
			p->createVertex(pt);
			pg0.append(n++);
		}

		Polygon& pg1=p->createPolygon();
		for(const auto& pt: p2) {
			p->createVertex(pt);
			pg1.prepend(n++);
		}