adrianton.gloptat.plotter.Pointer.java Source code

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Here is the source code for adrianton.gloptat.plotter.Pointer.java

Source

/*
 * Copyright 2012 Adrian Toncean
 * 
 * This file is part of Global Optimization AT.
 *
 * Global Optimization AT is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Global Optimization AT is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Global Optimization AT. If not, see <http://www.gnu.org/licenses/>.
 */

package adrianton.gloptat.plotter;

import org.lwjgl.opengl.GL11;

public class Pointer {
    static int handle;

    static void assemble() {
        final float tmpm = 1;
        final float tmpm2 = 1 / 3;
        final float tmpm3 = 7;

        handle = GL11.glGenLists(1);
        GL11.glNewList(handle, GL11.GL_COMPILE);

        GL11.glBegin(GL11.GL_TRIANGLES);
        GL11.glColor3f(1, 1, 1);

        GL11.glVertex3f(0, 0, tmpm2);
        GL11.glVertex3f(-tmpm, -tmpm, tmpm3);
        GL11.glVertex3f(-tmpm, tmpm, tmpm3);

        GL11.glVertex3f(0, 0, tmpm2);
        GL11.glVertex3f(-tmpm, tmpm, tmpm3);
        GL11.glVertex3f(tmpm, tmpm, tmpm3);

        GL11.glVertex3f(0, 0, tmpm2);
        GL11.glVertex3f(tmpm, tmpm, tmpm3);
        GL11.glVertex3f(tmpm, -tmpm, tmpm3);

        GL11.glVertex3f(0, 0, tmpm2);
        GL11.glVertex3f(tmpm, -tmpm, tmpm3);
        GL11.glVertex3f(-tmpm, -tmpm, tmpm3);
        GL11.glEnd();

        GL11.glBegin(GL11.GL_QUADS);
        GL11.glVertex3f(tmpm, tmpm, tmpm3);
        GL11.glVertex3f(tmpm, -tmpm, tmpm3);
        GL11.glVertex3f(-tmpm, -tmpm, tmpm3);
        GL11.glVertex3f(-tmpm, tmpm, tmpm3);
        GL11.glEnd();

        GL11.glEndList();
    }

    static void call() {
        GL11.glCallList(handle);
    }

    static void release() {
        GL11.glDeleteLists(handle, 1);
    }
}