Example usage for org.lwjgl.opengl GL11 glBegin

List of usage examples for org.lwjgl.opengl GL11 glBegin

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Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glBegin.

Prototype

public static native void glBegin(@NativeType("GLenum") int mode);

Source Link

Document

Begins the definition of vertex attributes of a sequence of primitives to be transferred to the GL.

Usage

From source file:eu.over9000.veya.gui.TrueTypeFont.java

License:Open Source License

public void drawString(final float x, final float y, final String whatchars, final Color color,
        final int startIndex, final int endIndex) {
    GL11.glColor4f(color.getRed(), color.getGreen(), color.getBlue(), color.getAlpha());
    GL11.glEnable(GL11.GL_TEXTURE_2D);/*from w ww.  j  a  v  a 2 s. c o  m*/
    GL11.glBindTexture(GL11.GL_TEXTURE_2D, textureId);

    CharDataContainer charDataContainer;
    int charCurrent;

    GL11.glBegin(GL11.GL_QUADS);

    int totalwidth = 0;
    for (int i = 0; i < whatchars.length(); i++) {
        charCurrent = whatchars.charAt(i);
        if (charCurrent < 256) {
            charDataContainer = charData[charCurrent];
        } else {
            charDataContainer = customChars.get((char) charCurrent);
        }

        if (charDataContainer != null) {
            if ((i >= startIndex) || (i <= endIndex)) {
                drawQuad((x + totalwidth), y, (x + totalwidth + charDataContainer.width),
                        (y + charDataContainer.height), charDataContainer.storedX, charDataContainer.storedY,
                        charDataContainer.storedX + charDataContainer.width,
                        charDataContainer.storedY + charDataContainer.height);
            }
            totalwidth += charDataContainer.width;
        }
    }

    GL11.glEnd();
}

From source file:fable.framework.ui.views.chiPlotView.java

License:Open Source License

/**
 * Build the list to display here/*from  w w w.  ja  v  a2 s . c  om*/
 */
private static void drawReliefList() {

    if (!reliefListFirst) {
        GL11.glDeleteLists(reliefList, 1);
    }
    reliefListFirst = false;
    reliefList = GL11.glGenLists(1);
    GL11.glNewList(reliefList, GL11.GL_COMPILE);
    GL11.glColor3f(1.0f, 1.0f, 1.0f); // white
    GL11.glPointSize(pointSize);
    for (int i = 0; i < imageWidth - 1; i++) {
        GL11.glBegin(GL11.GL_LINE_STRIP);
        int j = i + 1;
        int color_index = (int) image[i];
        if (color_index < 0)
            color_index = 0;
        if (color_index > COLOR_INDEX_MAX)
            color_index = COLOR_INDEX_MAX;
        GL11.glColor3f(red[color_index], green[color_index], blue[color_index]); // temperature lut
        GL11.glVertex3f(i, image[i], image[j]);
        // System.out.println("i=" + i + ", j=" + j + " image[i]=" +
        // image[i] + " image[j]=" + image[j]);
        GL11.glEnd();
    }
    /*
     * gl.glBegin(GL.GL_TRIANGLES);
     * 
     * gl.glVertex3f(-1.0f, -0.5f, 0.0f); // lower left vertex
     * gl.glVertex3f( 1.0f, -0.5f, 0.0f); // lower right vertex
     * gl.glVertex3f( 0.0f, 0.5f, 0.0f); // upper vertex
     * 
     * gl.glEnd();
     */
    GL11.glEndList();
    GL11.glFlush();
}

From source file:fable.imageviewer.views.ReliefView.java

License:Open Source License

private void drawReliefList() {
    // long started = System.currentTimeMillis();
    if (!reliefListFirst) {
        GL11.glDeleteLists(reliefList, 1);
    }/*from   ww w.j  a  v a  2 s .  c om*/
    reliefListFirst = false;
    reliefList = GL11.glGenLists(1);
    GL11.glNewList(reliefList, GL11.GL_COMPILE);
    GL11.glColor3f(1.0f, 1.0f, 1.0f); // white
    GL11.glPointSize(pointSize);
    for (int i = 0; i < imageWidth; i++) {
        GL11.glBegin(GL11.GL_LINE_STRIP);
        for (int j = 0; j < imageHeight; j++) {
            int color_index;
            color_index = (int) image[j * imageWidth + i];
            if (color_index < 0)
                color_index = 0;
            if (color_index > colorIndexMax)
                color_index = colorIndexMax;
            GL11.glColor3f(red[color_index], green[color_index], blue[color_index]); // temperature lut
            GL11.glVertex3f(i, j, image[j * imageWidth + i]);
        }
        GL11.glEnd();
    }
    for (int i = 0; i < imageHeight; i++) {
        GL11.glBegin(GL11.GL_LINE_STRIP);
        for (int j = 0; j < imageWidth; j++) {
            int color_index;
            color_index = (int) image[i * imageWidth + j];
            if (color_index < 0)
                color_index = 0;
            if (color_index > colorIndexMax)
                color_index = colorIndexMax;
            GL11.glColor3f(red[color_index], green[color_index], blue[color_index]); // temperature lut
            GL11.glVertex3f(j, i, image[i * imageWidth + j]);
        }
        GL11.glEnd();
    }
    GL11.glEndList();
    // long elapsed = System.currentTimeMillis()-started;
    // logger.debug("time to draw relief list "+elapsed+" ms");
}

From source file:fi.conf.ae.gl.GLGraphicRoutines.java

License:LGPL

public static void drawAxes() {
    GL11.glBegin(GL11.GL_LINES);
    GL11.glColor3f(1, 0, 0);/*from   ww  w . jav a2s  .  c o m*/
    GL11.glVertex3f(0, 0, 0);
    GL11.glVertex3f(1, 0, 0);

    GL11.glColor3f(0, 1, 0);
    GL11.glVertex3f(0, 0, 0);
    GL11.glVertex3f(0, 1, 0);

    GL11.glColor3f(0, 0, 1);
    GL11.glVertex3f(0, 0, 0);
    GL11.glVertex3f(0, 0, 1);
    GL11.glEnd();
}

From source file:fi.conf.ae.gl.GLGraphicRoutines.java

License:LGPL

public static void draw2DRect(float x0, float y0, float x1, float y1, float z) {
    GL11.glBegin(GL11.GL_QUADS);
    GL11.glNormal3f(0, 0, 1);// w ww.j a  v a  2 s  .c  o m
    GL11.glTexCoord2d(0, 0);
    GL11.glVertex3d(x0, y0, z);
    GL11.glNormal3f(0, 0, 1);
    GL11.glTexCoord2d(0, 0.9999999);
    GL11.glVertex3d(x0, y1, z);
    GL11.glNormal3f(0, 0, 1);
    GL11.glTexCoord2d(0.9999999, 0.9999999);
    GL11.glVertex3d(x1, y1, z);
    GL11.glNormal3f(0, 0, 1);
    GL11.glTexCoord2d(0.9999999, 0);
    GL11.glVertex3d(x1, y0, z);
    GL11.glEnd();
}

From source file:fi.conf.ae.gl.GLGraphicRoutines.java

License:LGPL

public static void drawRepeatedBackgroundPlane(float rx, float ry, float tx, float ty) {

    initOrtho();//from   www.j  a  v a 2 s .  c o  m

    GL11.glBegin(GL11.GL_QUADS);
    GL11.glTexCoord2d(tx, ty + ry);
    GL11.glVertex3d(0, GLValues.glHeight, -GLValues.glDepth);
    GL11.glTexCoord2d(tx + rx, ty + ry);
    GL11.glVertex3d(GLValues.glWidth, GLValues.glHeight, -GLValues.glDepth);
    GL11.glTexCoord2d(tx + rx, ty);
    GL11.glVertex3d(GLValues.glWidth, 0, -GLValues.glDepth);
    GL11.glTexCoord2d(tx, ty);
    GL11.glVertex3d(0, 0, -GLValues.glDepth);
    GL11.glEnd();

}

From source file:fi.conf.ae.gl.GLGraphicRoutines.java

License:LGPL

public static void drawCircle(float r, float d) {

    GL11.glBegin(GL11.GL_TRIANGLE_FAN);

    for (float a = (float) ((2.0f * Math.PI) / d); a < 2 * Math.PI; a += (2.0f * Math.PI) / (float) d) {

        GL11.glNormal3f(0, 0, -1.0f);//  w  ww . ja v a  2  s .c  o m
        GL11.glTexCoord2d((Math.sin(a) + 1.0f) / 2.0f, (Math.cos(a) + 1.0f) / 2.0f);
        GL11.glVertex3d(Math.sin(a) * r, Math.cos(a) * r, 0);

    }

    GL11.glEnd();

}

From source file:fi.conf.ae.gl.GLGraphicRoutines.java

License:LGPL

public static void drawHexagon(float r) {
    GL11.glBegin(GL11.GL_TRIANGLE_FAN);

    for (float a = (float) ((2.0f * Math.PI) / 6.0f); a < 2 * Math.PI; a += (2.0f * Math.PI) / 6.0f) {

        GL11.glNormal3f(0, 0, -1.0f);/*  w ww. j a  v  a2s  . com*/
        GL11.glTexCoord2d((Math.sin(a) + 1.0f) / 2.0f, (Math.cos(a) + 1.0f) / 2.0f);
        GL11.glVertex3d(Math.sin(a) * r, Math.cos(a) * r, 0);

    }
    GL11.glEnd();
}

From source file:fi.conf.ae.gl.GLGraphicRoutines.java

License:LGPL

public static void drawLineCircle(float radius, float segments, float lineWidth) {

    GL11.glBindTexture(GL11.GL_TEXTURE_2D, -1);
    GL11.glLineWidth(lineWidth);//from   w ww  .  j  a v  a 2 s .co m

    GL11.glBegin(GL11.GL_LINE_LOOP);

    for (float a = 0; a < 2 * Math.PI; a += (2.0f * Math.PI) / segments) {
        GL11.glVertex3d(Math.sin(a) * radius, Math.cos(a) * radius, 0);
    }

    GL11.glEnd();

}

From source file:fi.conf.ae.gl.GLGraphicRoutines.java

License:LGPL

public static void drawLineRect(float w, float x0, float y0, float x1, float y1, float z) {

    GL11.glBindTexture(GL11.GL_TEXTURE_2D, -1);
    GL11.glLineWidth(w);/*from  w w w.j  a v a2s. com*/
    GL11.glBegin(GL11.GL_LINE_LOOP);
    GL11.glVertex3d(x0, y1, z);
    GL11.glVertex3d(x1, y1, z);
    GL11.glVertex3d(x1, y0, z);
    GL11.glVertex3d(x0, y0, z);
    GL11.glEnd();

}