Examples of com.sun.opengl.util.texture.TextureCoords

com.sun.opengl.util.texture.TextureCoords
Specifies texture coordinates for a rectangular area of a texture. Note that some textures are inherently flipped vertically from OpenGL's standard coordinate system. This class takes care of this vertical flip so that the "bottom" and "top" coordinates may sometimes be reversed. From the point of view of code rendering textured polygons, it can always map the bottom and left texture coordinates from the TextureCoords to the lower left point of the textured polygon and achieve correct results.

    private void drawCell(GL gl, MapGridCellView cell) {
        try {
            Texture t = getTexture(cell);
            t.enable();
            t.bind();
            TextureCoords tc = t.getImageTexCoords();
            gl.glBegin(GL.GL_QUADS);
            gl.glTexCoord2d(tc.left(), tc.top());
            gl.glVertex3d(cell.getX(), cell.getY(), 0);


            gl.glTexCoord2d(tc.right(), tc.top());
            gl.glVertex3d(cell.getX() + cell.getWidth(), cell.getY(), 0);


            gl.glTexCoord2d(tc.right(), tc.bottom());
            gl.glVertex3d(cell.getX() + cell.getWidth(),
                    cell.getY() + cell.getHeight(), 0);


            gl.glTexCoord2d(tc.left(), tc.bottom());
            gl.glVertex3d(cell.getX(), cell.getY() + cell.getHeight(), 0);
            gl.glEnd();
            t.disable();
        } catch (Exception e) {
            e.printStackTrace();

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    private void drawCell(GL gl, MapGridCellView cell) {
        try {
            Texture t = getTexture(cell);
            t.enable();
            t.bind();
            TextureCoords tc = t.getImageTexCoords();
            gl.glBegin(GL.GL_QUADS);
            gl.glTexCoord2d(tc.left(), tc.top());
            gl.glVertex3d(cell.getX(), cell.getY(), 0);


            gl.glTexCoord2d(tc.right(), tc.top());
            gl.glVertex3d(cell.getX() + cell.getWidth(), cell.getY(), 0);


            gl.glTexCoord2d(tc.right(), tc.bottom());
            gl.glVertex3d(cell.getX() + cell.getWidth(), cell.getY()
                    + cell.getHeight(), 0);


            gl.glTexCoord2d(tc.left(), tc.bottom());
            gl.glVertex3d(cell.getX(), cell.getY() + cell.getHeight(), 0);
            gl.glEnd();
            t.disable();
        } catch (Exception e) {
            e.printStackTrace();

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    if (!(image instanceof Image)) throw new RuntimeException("Image has not been created by the JOGL Blackspirit Graphics implementation!");
    Image joglImage = (Image)image;
    
    startPrimitive(Primitive.IMAGE, joglImage);
        
    TextureCoords coords = joglImage.texture.getImageTexCoords();
    float texTop = coords.top();
    float texBottom = coords.bottom();
    float texLeft = coords.left();
    float texRight = coords.right();


    
    if(flip == Flip.BOTH || flip == Flip.HORIZONTAL) {
      float temp = texTop;
      texTop = texBottom;

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    if (!(image instanceof Image)) throw new RuntimeException("Image has not been created by the JOGL Blackspirit Graphics implementation!");
    Image joglImage = (Image)image;


    startPrimitive(Primitive.IMAGE, joglImage);


    TextureCoords coords = joglImage.texture.getImageTexCoords();
    float texTop = coords.top() + (coords.bottom() - coords.top()) / image.getHeight() * subImageY; 
    float texBottom = coords.top() + (coords.bottom() - coords.top()) / image.getHeight() * (subImageY + subImageHeight);
    float texLeft = coords.left() + (coords.right() - coords.left()) / image.getWidth() * subImageX;
    float texRight = coords.left() + (coords.right() - coords.left()) / image.getWidth() * (subImageX + subImageWidth);


    if(flip == Flip.BOTH || flip == Flip.HORIZONTAL) {
      float temp = texTop;
      texTop = texBottom;
      texBottom = temp;

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    Image joglImage = null;


    joglImage = (Image)image;
    startPrimitive(Primitive.TEXTURED_TRIANGLE, joglImage);


    TextureCoords coords = joglImage.texture.getImageTexCoords();
    
    if(useColors) {
      Color4f c;
        for(int i = 0; i < triangles.length; i++) {
        Triangle t = triangles[i];
        if(t == null) continue;


        Vector2f tc1 = t.getTextureCoordinate(0);
        if (tc1 == null) throw new IllegalArgumentException("Texture coordinate for triangle must not be null");
        Vector2f tc2 = t.getTextureCoordinate(1);
        if (tc2 == null) throw new IllegalArgumentException("Texture coordinate for triangle must not be null");
        Vector2f tc3 = t.getTextureCoordinate(2);
        if (tc3 == null) throw new IllegalArgumentException("Texture coordinate for triangle must not be null");
    
        p = t.getPoint(0);
        c = t.getColor(0);
        if(c == null) c = color;
        gl.glColor4f(c.x, c.y, c.z, c.w);
        float texX = coords.left() + (coords.right() - coords.left()) / joglImage.texture.getImageWidth() * tc1.x;
        float texY = coords.top() + (coords.bottom() - coords.top()) / joglImage.texture.getImageHeight() * tc1.y;
        gl.glTexCoord2f(texX, texY);
            gl.glVertex2f(p.x, p.y);
        
            p = t.getPoint(1);
        c = t.getColor(1);
        if(c == null) c = color;
        gl.glColor4f(c.x, c.y, c.z, c.w);
        texX = coords.left() + (coords.right() - coords.left()) / joglImage.texture.getImageWidth() * tc2.x;
        texY = coords.top() + (coords.bottom() - coords.top()) / joglImage.texture.getImageHeight() * tc2.y; 
        gl.glTexCoord2f(texX, texY);
            gl.glVertex2f(p.x, p.y);
        
            p = t.getPoint(2);
        c = t.getColor(2);
        if(c == null) c = color;
        gl.glColor4f(c.x, c.y, c.z, c.w);
        texX = coords.left() + (coords.right() - coords.left()) / joglImage.texture.getImageWidth() * tc3.x;
        texY = coords.top() + (coords.bottom() - coords.top()) / joglImage.texture.getImageHeight() * tc3.y; 
        gl.glTexCoord2f(texX, texY);
            gl.glVertex2f(p.x, p.y);
    
        }
    } else {
        for(int i = 0; i < triangles.length; i++) {
        Triangle t = triangles[i];
        if(t == null) continue;
  
        Vector2f tc1 = t.getTextureCoordinate(0);
        if (tc1 == null) throw new IllegalArgumentException("Texture coordinate for triangle must not be null");
        Vector2f tc2 = t.getTextureCoordinate(1);
        if (tc2 == null) throw new IllegalArgumentException("Texture coordinate for triangle must not be null");
        Vector2f tc3 = t.getTextureCoordinate(2);
        if (tc3 == null) throw new IllegalArgumentException("Texture coordinate for triangle must not be null");


        p = t.getPoint(0);
        float texX = coords.left() + (coords.right() - coords.left()) / joglImage.texture.getImageWidth() * tc1.x;
        float texY = coords.top() + (coords.bottom() - coords.top()) / joglImage.texture.getImageHeight() * tc1.y;
        gl.glTexCoord2f(texX, texY);
            gl.glVertex2f(p.x, p.y);
        
            p = t.getPoint(1);
        texX = coords.left() + (coords.right() - coords.left()) / joglImage.texture.getImageWidth() * tc2.x;
        texY = coords.top() + (coords.bottom() - coords.top()) / joglImage.texture.getImageHeight() * tc2.y; 
        gl.glTexCoord2f(texX, texY);
            gl.glVertex2f(p.x, p.y);
        
            p = t.getPoint(2);
        texX = coords.left() + (coords.right() - coords.left()) / joglImage.texture.getImageWidth() * tc3.x;
        texY = coords.top() + (coords.bottom() - coords.top()) / joglImage.texture.getImageHeight() * tc3.y; 
        gl.glTexCoord2f(texX, texY);
            gl.glVertex2f(p.x, p.y);
    
        }
    }

View Full Code Here

    gl.glClear(GL.GL_COLOR_BUFFER_BIT);


    gl.glBegin(GL.GL_TRIANGLE_STRIP);
    gl.glColor4f(1, 1, 1, 1);
    
    TextureCoords coords = image.texture.getImageTexCoords();
        
    gl.glTexCoord2f(coords.left(), coords.top());
        gl.glVertex2f(0, 0);
        gl.glTexCoord2f(coords.right(), coords.top());
        gl.glVertex2f(image.getWidth(), 0);
        gl.glTexCoord2f(coords.left(), coords.bottom());
        gl.glVertex2f(0, image.getHeight());
        gl.glTexCoord2f(coords.right(), coords.bottom());
        gl.glVertex2f(image.getWidth(), image.getHeight());


        gl.glEnd();
        
        gl.glGetIntegerv(GL.GL_PACK_ROW_LENGTH,  rowLength,  0); // save row length

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Related Classes of com.sun.opengl.util.texture.TextureCoords

ch.blackspirit.graphics.jogl.BufferRegionUpdate

ch.blackspirit.graphics.jogl.JOGLGraphicsDelegate

org.mati.geotech.layers.MapLayer

org.mati.geotech.layers.MSMapLayer

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