gl_aaboundingbox.h 1.39 KB
#ifndef STIM_GL_AABB
#define STIM_GL_AABB

#include <stim/visualization/aaboundingbox.h>
#include <GL/gl.h>

namespace stim {

	template <typename T>
	class gl_aaboundingbox : public aaboundingbox<T> {

	public:

		using stim::aaboundingbox<T>::A;
		using stim::aaboundingbox<T>::B;

		//default constructor
		gl_aaboundingbox() : stim::aaboundingbox<T>() {}

		//constructor takes an AABB
		gl_aaboundingbox(stim::aaboundingbox<T> b) : stim::aaboundingbox<T>(b) {}


		/// Specifies vertices of the bounding box using CW winding. Use GL_LINE_LOOP for wireframe or GL_QUADS for a solid.
		void glWire() {

			//front plane (in A[2])
			glBegin(GL_LINE_LOOP);
			glVertex3f(A[0], A[1], A[2]);
			glVertex3f(A[0], B[1], A[2]);
			glVertex3f(B[0], B[1], A[2]);
			glVertex3f(B[0], A[1], A[2]);
			glEnd();

			//back plane (in B[2])
			glBegin(GL_LINE_LOOP);
			glVertex3f(B[0], B[1], B[2]);
			glVertex3f(A[0], B[1], B[2]);
			glVertex3f(A[0], A[1], B[2]);
			glVertex3f(B[0], A[1], B[2]);
			glEnd();

			//fill out the rest of the lines to connect the two faces
			glBegin(GL_LINES);
			glVertex3f(A[0], B[1], A[2]);
			glVertex3f(A[0], B[1], B[2]);
			glVertex3f(B[0], B[1], B[2]);
			glVertex3f(B[0], B[1], A[2]);
			glVertex3f(B[0], A[1], A[2]);
			glVertex3f(B[0], A[1], B[2]);
			glVertex3f(A[0], A[1], B[2]);
			glVertex3f(A[0], A[1], A[2]);
			glEnd();

		}


	};		//end stim::gl_aabb


};		//end namespace stim

#endif