Function duAppendArc

3rdparty/recast/DebugDraw.cpp:431–471

}

void duAppendArc(struct duDebugDraw* dd, const float x0, const float y0, const float z0,
				 const float x1, const float y1, const float z1, const float h,
				 const float as0, const float as1, unsigned int col)
{
	if (!dd) return;
	static const int NUM_ARC_PTS = 8;
	static const float PAD = 0.05f;
	static const float ARC_PTS_SCALE = (1.0f-PAD*2) / (float)NUM_ARC_PTS;
	const float dx = x1 - x0;
	const float dy = y1 - y0;
	const float dz = z1 - z0;
	const float len = sqrtf(dx*dx + dy*dy + dz*dz);
	float prev[3];
	evalArc(x0,y0,z0, dx,dy,dz, len*h, PAD, prev);
	for (int i = 1; i <= NUM_ARC_PTS; ++i)
	{
		const float u = PAD + i * ARC_PTS_SCALE;
		float pt[3];
		evalArc(x0,y0,z0, dx,dy,dz, len*h, u, pt);
		dd->vertex(prev[0],prev[1],prev[2], col);
		dd->vertex(pt[0],pt[1],pt[2], col);
		prev[0] = pt[0]; prev[1] = pt[1]; prev[2] = pt[2];
	}
	
	// End arrows
	if (as0 > 0.001f)
	{
		float p[3], q[3];
		evalArc(x0,y0,z0, dx,dy,dz, len*h, PAD, p);
		evalArc(x0,y0,z0, dx,dy,dz, len*h, PAD+0.05f, q);
		appendArrowHead(dd, p, q, as0, col);
	}

	if (as1 > 0.001f)
	{
		float p[3], q[3];
		evalArc(x0,y0,z0, dx,dy,dz, len*h, 1-PAD, p);
		evalArc(x0,y0,z0, dx,dy,dz, len*h, 1-(PAD+0.05f), q);
		appendArrowHead(dd, p, q, as1, col);
	}
}

void duAppendArrow(struct duDebugDraw* dd, const float x0, const float y0, const float z0,
				   const float x1, const float y1, const float z1,