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:fr.def.iss.vd2.lib_v3d.element.basemap.PolyBasemap.java

License:Open Source License

private void draw() {

    vertices.clear();/*from   w  ww. j  av a 2 s  .c o m*/
    stripVertexCount.clear();

    float dx = -(minX / 2 + maxX / 2) * innerScale;
    float dy = -(minY / 2 + maxY / 2) * innerScale;

    GL11.glPushMatrix();
    GL11.glTranslatef(dx, dy, 0);
    GL11.glScalef(innerScale, innerScale, innerScale);

    while (stripVertexCount.hasRemaining()) {
        int lineLenght = stripVertexCount.get();

        GL11.glBegin(GL11.GL_LINE_STRIP); // Draw line
        for (int j = 0; j < lineLenght; j++) {

            if (vertices.remaining() >= 2) {
                float x = vertices.get();
                float y = vertices.get();
                GL11.glVertex3f(x, y, 0.0f);
            } else {
                // we should log the problem, but this method is called too
                // often (each time GL redraws). We don't want to flood the
                // logs, so we just ignore the problem silently. The
                // correctness of the data should be done at load time.
            }
        }

        GL11.glEnd();

    }

    GL11.glPopMatrix();

}

From source file:fr.def.iss.vd2.lib_v3d.element.V3DBoundingBox.java

License:Open Source License

public void display() {

    if (showCenter) {
        GL11.glColor4f(centerColor.r, centerColor.g, centerColor.b, centerColor.a);
        GL11.glPointSize(4.0f);/*from w  w w  .  j  a va2  s.c o  m*/
        GL11.glBegin(GL11.GL_POINTS);

        GL11.glVertex3d(center.x, center.y, center.z);

        GL11.glEnd();
    }
    if (flat || size.z == 0) {
        displayFlat();
    } else {
        displayThick();
    }
}

From source file:fr.def.iss.vd2.lib_v3d.element.V3DBoundingBox.java

License:Open Source License

public void displayFlatLines() {
    float x0 = position.x - size.x / 2;
    float y0 = position.y - size.y / 2;
    float x1 = position.x + size.x / 2;
    float y1 = position.y + size.y / 2;

    GL11.glColor4f(lineColor.r, lineColor.g, lineColor.b, lineColor.a);
    GL11.glLineWidth(2.0f);/*from   w w w . j  ava 2s  . c o m*/
    GL11.glBegin(GL11.GL_LINE_LOOP);

    GL11.glVertex3d(x0, y1, 0);
    GL11.glVertex3d(x0, y0, 0);
    GL11.glVertex3d(x1, y0, 0);
    GL11.glVertex3d(x1, y1, 0);

    GL11.glEnd();
}

From source file:fr.def.iss.vd2.lib_v3d.element.V3DBoundingBox.java

License:Open Source License

public void displayFlatFaces() {
    float x0 = position.x - size.x / 2;
    float y0 = position.y - size.y / 2;
    float x1 = position.x + size.x / 2;
    float y1 = position.y + size.y / 2;
    GL11.glColor4f(faceColor.r, faceColor.g, faceColor.b, faceColor.a);
    GL11.glBegin(GL11.GL_QUADS);

    GL11.glVertex3d(x0, y1, 0);// w w  w .jav  a  2  s  . c  om
    GL11.glVertex3d(x0, y0, 0);
    GL11.glVertex3d(x1, y0, 0);
    GL11.glVertex3d(x1, y1, 0);

    GL11.glEnd();
}

From source file:fr.def.iss.vd2.lib_v3d.element.V3DBoundingBox.java

License:Open Source License

public void displayThickLines() {
    float x0 = position.x - size.x / 2;
    float x1 = position.x + size.x / 2;
    float y0 = position.y - size.y / 2;
    float y1 = position.y + size.y / 2;
    float z0 = position.z - size.z / 2;
    float z1 = position.z + size.z / 2;

    GL11.glColor4f(lineColor.r, lineColor.g, lineColor.b, lineColor.a);
    GL11.glLineWidth(2.0f);//  www .  j a  v  a2s  .  c om
    GL11.glBegin(GL11.GL_LINE_LOOP);

    GL11.glVertex3d(x0, y0, z1);
    GL11.glVertex3d(x0, y1, z1);
    GL11.glVertex3d(x1, y1, z1);
    GL11.glVertex3d(x1, y0, z1);

    GL11.glEnd();

    GL11.glBegin(GL11.GL_LINE_LOOP);

    GL11.glVertex3d(x0, y1, z0);
    GL11.glVertex3d(x0, y0, z0);
    GL11.glVertex3d(x1, y0, z0);
    GL11.glVertex3d(x1, y1, z0);

    GL11.glEnd();

    GL11.glBegin(GL11.GL_LINES);

    GL11.glVertex3d(x0, y1, z1);
    GL11.glVertex3d(x0, y1, z0);
    GL11.glVertex3d(x0, y0, z1);
    GL11.glVertex3d(x0, y0, z0);
    GL11.glVertex3d(x1, y0, z1);
    GL11.glVertex3d(x1, y0, z0);
    GL11.glVertex3d(x1, y1, z1);
    GL11.glVertex3d(x1, y1, z0);

    GL11.glEnd();
}

From source file:fr.def.iss.vd2.lib_v3d.element.V3DBoundingBox.java

License:Open Source License

public void displayThickFaces() {
    float x0 = position.x - size.x / 2;
    float x1 = position.x + size.x / 2;
    float y0 = position.y - size.y / 2;
    float y1 = position.y + size.y / 2;
    float z0 = position.z - size.z / 2;
    float z1 = position.z + size.z / 2;

    GL11.glColor4f(faceColor.r, faceColor.g, faceColor.b, faceColor.a);
    GL11.glBegin(GL11.GL_QUADS);

    GL11.glVertex3d(x0, y0, z1);/*  w ww . j  a va  2 s  . c om*/
    GL11.glVertex3d(x0, y0, z0);
    GL11.glVertex3d(x1, y0, z0);
    GL11.glVertex3d(x1, y0, z1);

    GL11.glVertex3d(x0, y1, z1);
    GL11.glVertex3d(x0, y1, z0);
    GL11.glVertex3d(x0, y0, z0);
    GL11.glVertex3d(x0, y0, z1);

    GL11.glVertex3d(x1, y1, z1);
    GL11.glVertex3d(x1, y1, z0);
    GL11.glVertex3d(x0, y1, z0);
    GL11.glVertex3d(x0, y1, z1);

    GL11.glVertex3d(x1, y0, z1);
    GL11.glVertex3d(x1, y0, z0);
    GL11.glVertex3d(x1, y1, z0);
    GL11.glVertex3d(x1, y1, z1);

    GL11.glVertex3d(x0, y0, z0);
    GL11.glVertex3d(x0, y1, z0);
    GL11.glVertex3d(x1, y1, z0);
    GL11.glVertex3d(x1, y0, z0);

    GL11.glVertex3d(x0, y1, z1);
    GL11.glVertex3d(x0, y0, z1);
    GL11.glVertex3d(x1, y0, z1);
    GL11.glVertex3d(x1, y1, z1);

    GL11.glEnd();
}

From source file:fr.def.iss.vd2.lib_v3d.element.V3DBox.java

License:Open Source License

@Override
protected void doDisplay(I3dCamera camera) {
    float x0 = -size.x / 2;
    float x1 = size.x / 2;
    float y0 = -size.y / 2;
    float y1 = size.y / 2;
    float z0 = -size.z / 2;
    float z1 = size.z / 2;

    if (renderMode == RenderMode.PLAIN) {

        //GL11.glEnable(GL11.GL_LIGHTING);

        GL11.glBegin(GL11.GL_QUADS);

        GL11.glNormal3f(0, 1, 0);/*  ww w  . j  ava 2 s .c  om*/
        GL11.glVertex3d(x0, y0, z1);
        GL11.glVertex3d(x0, y0, z0);
        GL11.glVertex3d(x1, y0, z0);
        GL11.glVertex3d(x1, y0, z1);

        GL11.glNormal3f(1, 0, 0);
        GL11.glVertex3d(x0, y1, z1);
        GL11.glVertex3d(x0, y1, z0);
        GL11.glVertex3d(x0, y0, z0);
        GL11.glVertex3d(x0, y0, z1);

        GL11.glNormal3f(0, -1, 0);
        GL11.glVertex3d(x1, y1, z1);
        GL11.glVertex3d(x1, y1, z0);
        GL11.glVertex3d(x0, y1, z0);
        GL11.glVertex3d(x0, y1, z1);

        GL11.glNormal3f(-1, 0, 0);
        GL11.glVertex3d(x1, y0, z1);
        GL11.glVertex3d(x1, y0, z0);
        GL11.glVertex3d(x1, y1, z0);
        GL11.glVertex3d(x1, y1, z1);

        GL11.glNormal3f(0, 0, 1);
        GL11.glVertex3d(x0, y0, z0);
        GL11.glVertex3d(x0, y1, z0);
        GL11.glVertex3d(x1, y1, z0);
        GL11.glVertex3d(x1, y0, z0);

        GL11.glNormal3f(0, 0, -1);
        GL11.glVertex3d(x0, y1, z1);
        GL11.glVertex3d(x0, y0, z1);
        GL11.glVertex3d(x1, y0, z1);
        GL11.glVertex3d(x1, y1, z1);

        GL11.glEnd();

        GL11.glDisable(GL11.GL_LIGHTING);
    }
    if (renderMode == RenderMode.SOLID) {

        GL11.glLineWidth(thickness);

        GL11.glEnable(GL11.GL_LINE_STIPPLE);
        GL11.glLineStipple(stippleFactor, stipplePattern);

        GL11.glBegin(GL11.GL_LINE_LOOP);

        GL11.glVertex3d(x0, y0, z1);
        GL11.glVertex3d(x0, y1, z1);
        GL11.glVertex3d(x1, y1, z1);
        GL11.glVertex3d(x1, y0, z1);

        GL11.glEnd();

        GL11.glBegin(GL11.GL_LINE_LOOP);

        GL11.glVertex3d(x0, y1, z0);
        GL11.glVertex3d(x0, y0, z0);
        GL11.glVertex3d(x1, y0, z0);
        GL11.glVertex3d(x1, y1, z0);

        GL11.glEnd();

        GL11.glBegin(GL11.GL_LINES);

        GL11.glVertex3d(x0, y1, z1);
        GL11.glVertex3d(x0, y1, z0);
        GL11.glVertex3d(x0, y0, z1);
        GL11.glVertex3d(x0, y0, z0);
        GL11.glVertex3d(x1, y0, z1);
        GL11.glVertex3d(x1, y0, z0);
        GL11.glVertex3d(x1, y1, z1);
        GL11.glVertex3d(x1, y1, z0);

        GL11.glEnd();

        GL11.glDisable(GL11.GL_LINE_STIPPLE);
    }
}

From source file:fr.def.iss.vd2.lib_v3d.element.V3DCircle.java

License:Open Source License

private void drawCircle() {
    GL11.glBegin(GL11.GL_TRIANGLE_FAN);

    if (customColor) {
        GL11.glPushAttrib(GL11.GL_CURRENT_BIT);
        GL11.glEnable(GL11.GL_ALPHA_TEST);
        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
        GL11.glColor3f(innerColor.r, innerColor.g, innerColor.b);
    }//www.j ava 2 s  . c om
    GL11.glVertex3f(0.0f, 0.0f, 0.0f); // center

    float step = 2f * (float) Math.PI / (float) quality;
    if (customColor) {

        GL11.glColor4f(outerColor.r, outerColor.g, outerColor.b, outerColor.a);
    }

    for (int i = 0; i <= quality; i++) {
        GL11.glVertex3f((float) (radius * Math.cos(step * i)), (float) (radius * Math.sin(step * i)), 0f);
    }

    if (customColor) {

        GL11.glDisable(GL11.GL_ALPHA_TEST);
        GL11.glPopAttrib();
    }

    GL11.glEnd();

}

From source file:fr.def.iss.vd2.lib_v3d.element.V3DCircle.java

License:Open Source License

private void drawExternCircle() {

    float step = 2f * (float) Math.PI / (float) quality;

    if (customColor) {
        GL11.glPushAttrib(GL11.GL_CURRENT_BIT);
        GL11.glEnable(GL11.GL_ALPHA_TEST);
        GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
    }/*  w w  w  . j av a  2  s.c  o  m*/

    GL11.glBegin(GL11.GL_TRIANGLE_STRIP);

    for (int i = 0; i <= quality; i++) {
        if (customColor) {
            GL11.glColor4f(innerColor.r, innerColor.g, innerColor.b, innerColor.a);
        }
        GL11.glVertex3f((float) (innerRadius * Math.cos(step * i)), (float) (innerRadius * Math.sin(step * i)),
                0f);

        if (customColor) {
            GL11.glColor4f(outerColor.r, outerColor.g, outerColor.b, outerColor.a);
        }
        GL11.glVertex3f((float) (radius * Math.cos(step * i)), (float) (radius * Math.sin(step * i)), 0f);
    }

    GL11.glEnd();

    if (customColor) {
        GL11.glDisable(GL11.GL_ALPHA_TEST);
        GL11.glPopAttrib();
    }

}

From source file:fr.def.iss.vd2.lib_v3d.element.V3DCircle.java

License:Open Source License

private void drawSolidCircle() {
    float step = 2f * (float) Math.PI / (float) quality;

    GL11.glBegin(GL11.GL_LINE_LOOP);

    for (int i = 0; i <= quality; i++) {
        GL11.glVertex3f((float) (radius * Math.cos(step * i)), (float) (radius * Math.sin(step * i)), 0f);
    }//from w ww  .  j a va 2 s  .  co m

    GL11.glEnd();

    GL11.glBegin(GL11.GL_POINTS);

    for (int i = 0; i <= quality; i++) {
        GL11.glVertex3f((float) (radius * Math.cos(step * i)), (float) (radius * Math.sin(step * i)), 0f);
    }

    GL11.glEnd();

}