Package javax.media.opengl

Examples of javax.media.opengl.GL2.glBegin()

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            dc.getView().pushReferenceCenter(dc, this.placePoint); // draw relative to the place point

            this.setLineWidth(dc);
            this.setLineColor(dc, pickCandidates);

            gl.glBegin(GL2.GL_LINE_STRIP);
            gl.glVertex3d(Vec4.ZERO.x, Vec4.ZERO.y, Vec4.ZERO.z);
            gl.glVertex3d(this.terrainPoint.x - this.placePoint.x, this.terrainPoint.y - this.placePoint.y,
                this.terrainPoint.z - this.placePoint.z);
            gl.glEnd();
        }
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            double depth = this.screenPoint.z - (8d * 0.00048875809d);
            depth = depth < 0d ? 0d : (depth > 1d ? 1d : depth);
            gl.glDepthFunc(GL.GL_LESS);
            gl.glDepthRange(depth, depth);

            gl.glBegin(GL2.GL_POINTS);
            gl.glVertex3d(this.screenPoint.x, this.screenPoint.y, 0);
            gl.glEnd();

            gl.glDepthRange(0, 1); // reset depth range to the OGL default

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    if (property.hasCollapsedNodeUnder) {
      double centerX = property.positionX+property.size/2;
      double centerY = property.positionY+property.size/2;
      double halfWidth = 0.7;
      double halfHeight = 4;
      gl.glBegin(GL2.GL_QUADS);
      gl.glColor4f(1f, 1f, 1f, 0.5f);
      // vertical line
      gl.glVertex2d(centerX - halfWidth, centerY + halfHeight);
      gl.glVertex2d(centerX + halfWidth, centerY + halfHeight);
      gl.glVertex2d(centerX + halfWidth, centerY - halfHeight);
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        foreground.getAlpha() / 255f);

    gl.glPushMatrix();
    float[] translate = GLScene.P((float) centerX, (float) centerY);
    gl.glTranslatef(translate[0], translate[1], translate[2]);
    gl.glBegin(GL2.GL_QUADS);
    // divided by 2 to get nicer textures
    // divided by 4 when we center it : 1/2 on each side of x axis for instance.
    gl.glTexCoord2f(tx1, ty1);
    GLScene.V(gl, -halfWidth, halfHeight);
    gl.glTexCoord2f(tx2, ty1);
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  private final Vec2 trans = new Vec2();

  @Override
  public void drawSolidPolygon(Vec2[] vertices, int vertexCount, Color3f color) {
    GL2 gl = panel.getGL().getGL2();
    gl.glBegin(GL2.GL_TRIANGLE_FAN);
    gl.glColor4f(color.x, color.y, color.z, .4f);
    for (int i = 0; i < vertexCount; i++) {
      getWorldToScreenToOut(vertices[i], trans);
      gl.glVertex2f(trans.x, trans.y);
    }
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      getWorldToScreenToOut(vertices[i], trans);
      gl.glVertex2f(trans.x, trans.y);
    }
    gl.glEnd();

    gl.glBegin(GL2.GL_LINE_LOOP);
    gl.glColor4f(color.x, color.y, color.z, 1f);
    for (int i = 0; i < vertexCount; i++) {
      getWorldToScreenToOut(vertices[i], trans);
      gl.glVertex2f(trans.x, trans.y);
    }
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  }

  @Override
  public void drawSegment(Vec2 p1, Vec2 p2, Color3f color) {
    GL2 gl = panel.getGL().getGL2();
    gl.glBegin(GL2.GL_LINES);
    gl.glColor3f(color.x, color.y, color.z);
    getWorldToScreenToOut(p1, trans);
    gl.glVertex2f(trans.x, trans.y);
    getWorldToScreenToOut(p2, trans);
    gl.glVertex2f(trans.x, trans.y);
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    GL2 gl = panel.getGL().getGL2();
    getWorldToScreenToOut(xf.p, temp);
    temp2.setZero();
    float k_axisScale = 0.4f;

    gl.glBegin(GL2.GL_LINES);
    gl.glColor3f(1, 0, 0);

    temp2.x = xf.p.x + k_axisScale * xf.q.c;
    temp2.y = xf.p.y + k_axisScale * xf.q.s;
    getWorldToScreenToOut(temp2, temp2);
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        gl.glMatrixMode(GL2.GL_PROJECTION);
        gl.glPushMatrix();
        gl.glLoadIdentity();
        gl.glOrtho(0.0, 1.0, 0.0, 1.0, 0.0, 1.0);

        gl.glBegin(GL2.GL_QUADS);
        gl.glTexCoord2f(texMinU, texMinV); gl.glVertex3f(mapMinX,mapMinY, mapZ);
        gl.glTexCoord2f(texMaxU, texMinV); gl.glVertex3f(mapMaxX,mapMinY, mapZ);
        gl.glTexCoord2f(texMaxU, texMaxV); gl.glVertex3f(mapMaxX,mapMaxY, mapZ);
        gl.glTexCoord2f(texMinU, texMaxV); gl.glVertex3f(mapMinX,mapMaxY, mapZ);
        gl.glEnd();
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        float mapMinX = (float) (((px + minX)- halfWidth)/halfWidth);
        float mapMinY = (float) ((halfHeight - (py + maxY))/halfHeight);
        float mapMaxX = (float) ((px + maxX - halfWidth)/halfWidth);
        float mapMaxY = (float) ((halfHeight - (py + minY))/halfHeight);

        gl.glBegin(GL2.GL_QUADS);

        gl.glTexCoord2f(texMinU, texMaxV); gl.glVertex2f(mapMinX,mapMinY);
        gl.glTexCoord2f(texMaxU, texMaxV); gl.glVertex2f(mapMaxX,mapMinY);
        gl.glTexCoord2f(texMaxU, texMinV); gl.glVertex2f(mapMaxX,mapMaxY);
        gl.glTexCoord2f(texMinU, texMinV); gl.glVertex2f(mapMinX,mapMaxY);
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