Java GL2.glPolygonMode方法代碼示例

import javax.media.opengl.GL2; //導入方法依賴的package包/類
@Override
public void paint(){
	// Compute maximum width of text we're going to draw
	TextRenderer textRenderer = new TextRenderer(new Font(Font.SERIF,0 , 18));
	
    int maxTextWidth = (int) textRenderer.getBounds(this.text).getWidth();
    maxTextWidth = Math.min(maxTextWidth+10,size.width);
	
	GL2 gl=glContext.getGL2();
	gl.glClear(GL.GL_COLOR_BUFFER_BIT);
	gl.glPolygonMode (GL2.GL_FRONT, GL2.GL_LINE_STRIP);
    gl.glColor3f(0.5f, 0.5f, 0.5f);

    gl.glBegin(GL2.GL_LINE_STRIP);
    gl.glVertex2i( this.posx,this.posy);							//x1,y1
    gl.glVertex2i( this.posx+maxTextWidth,this.posy );				//x2,y1
    gl.glVertex2i( this.posx+maxTextWidth,this.posy +size.height); 	//x2,y2 
    gl.glVertex2i( this.posx,this.posy+size.height);				//x1,y2
    gl.glVertex2i( this.posx,this.posy);	
    gl.glEnd( );
    
    
    GLDrawable draw=gl.getGL().getContext().getGLDrawable();
	textRenderer.beginRendering(draw.getWidth(),draw.getHeight());
	textRenderer.setColor(Color.WHITE);
	textRenderer.setSmoothing(true);
	textRenderer.draw(this.text,(int)posx,(int)posy+5); //text and position
	textRenderer.flush();
	textRenderer.endRendering();
	
	gl.glFlush();
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
protected void renderPatchBoundary(DrawContext dc, RectTile tile)
{
   // GL gl = dc.getGL();
	GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
    OGLStackHandler ogsh = new OGLStackHandler();

    ogsh.pushAttrib(gl, GL2.GL_ENABLE_BIT | GL2.GL_CURRENT_BIT | GL2.GL_POLYGON_BIT);
    try
    {
        gl.glDisable(GL.GL_BLEND);

        // Don't perform depth clipping but turn on backface culling
        gl.glDisable(GL.GL_DEPTH_TEST);
        gl.glEnable(GL.GL_CULL_FACE);
        gl.glCullFace(GL.GL_BACK);
        gl.glPolygonMode(GL.GL_FRONT, GL2.GL_LINE);

        Vec4[] corners = tile.sector.computeCornerPoints(dc.getGlobe(), dc.getVerticalExaggeration());

        gl.glColor4d(1d, 0, 0, 1d);
        gl.glBegin(javax.media.opengl.GL2.GL_QUADS);
        gl.glVertex3d(corners[0].x, corners[0].y, corners[0].z);
        gl.glVertex3d(corners[1].x, corners[1].y, corners[1].z);
        gl.glVertex3d(corners[2].x, corners[2].y, corners[2].z);
        gl.glVertex3d(corners[3].x, corners[3].y, corners[3].z);
        gl.glEnd();
    }
    finally
    {
        ogsh.pop(gl);
    }
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
 *
 * @param openGL
 * @param polygonMode
 * @param sides
 */
public final void draw(final GL2 openGL, final int polygonMode,
        final int sides) {

    asureIsBuffered(openGL);
    openGL.glEnableClientState(GL.GL_ELEMENT_ARRAY_BUFFER);
    openGL.glPolygonMode(sides, polygonMode);

    openGL.glDrawElements(primitive, getBufferCapacity(),
            GL.GL_UNSIGNED_INT, 0);

    openGL.glBindBuffer(target(), 0);
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
protected void draw(DrawContext dc)
{
    this.assembleTiles(dc); // Determine the tiles to draw.

    if (this.currentTiles.size() >= 1)
    {
        // Indicate that this layer rendered something this frame.
        this.setValue(AVKey.FRAME_TIMESTAMP, dc.getFrameTimeStamp());

        if (this.getScreenCredit() != null)
        {
            dc.addScreenCredit(this.getScreenCredit());
        }

        TextureTile[] sortedTiles = new TextureTile[this.currentTiles.size()];
        sortedTiles = this.currentTiles.toArray(sortedTiles);
        Arrays.sort(sortedTiles, levelComparer);

        //GL gl = dc.getGL();
        GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
        
        if (this.isUseTransparentTextures() || this.getOpacity() < 1)
        {
            gl.glPushAttrib(GL.GL_COLOR_BUFFER_BIT | GL2.GL_POLYGON_BIT | GL2.GL_CURRENT_BIT);
            this.setBlendingFunction(dc);
        }
        else
        {
            gl.glPushAttrib(GL.GL_COLOR_BUFFER_BIT | GL2.GL_POLYGON_BIT);
        }

        gl.glPolygonMode(GL.GL_FRONT, GL2.GL_FILL);
        gl.glEnable(GL.GL_CULL_FACE);
        gl.glCullFace(GL.GL_BACK);

        dc.setPerFrameStatistic(PerformanceStatistic.IMAGE_TILE_COUNT, this.tileCountName,
            this.currentTiles.size());
        dc.getGeographicSurfaceTileRenderer().renderTiles(dc, this.currentTiles);

        gl.glPopAttrib();

        if (this.drawTileIDs)
            this.drawTileIDs(dc, this.currentTiles);

        if (this.drawBoundingVolumes)
            this.drawBoundingVolumes(dc, this.currentTiles);

        // Check texture expiration. Memory-cached textures are checked for expiration only when an explicit,
        // non-zero expiry time has been set for the layer. If none has been set, the expiry times of the layer's
        // individual levels are used, but only for images in the local file cache, not textures in memory. This is
        // to avoid incurring the overhead of checking expiration of in-memory textures, a very rarely used feature.
        if (this.getExpiryTime() > 0 && this.getExpiryTime() <= System.currentTimeMillis())
            this.checkTextureExpiration(dc, this.currentTiles);

        this.currentTiles.clear();
    }

    this.sendRequests();
    this.requestQ.clear();
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
protected void draw(DrawContext dc)
{
    this.referencePoint = this.computeReferencePoint(dc);

    Position pos = dc.getView().getEyePosition();
    this.centerPoint = new LatLon(pos.getLatitude(), pos.getLongitude());
    
    this.assembleTiles(dc); // Determine the tiles to draw.

    if (this.currentTiles.size() >= 1)
    {
        TextureTile[] sortedTiles = new TextureTile[this.currentTiles.size()];
        sortedTiles = this.currentTiles.toArray(sortedTiles);
        Arrays.sort(sortedTiles, levelComparer);

        //GL gl = dc.getGL();
        GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.

        if (this.isUseTransparentTextures() || this.getOpacity() < 1)
        {
            gl.glPushAttrib(GL.GL_COLOR_BUFFER_BIT | GL2.GL_POLYGON_BIT | GL2.GL_CURRENT_BIT);
            gl.glColor4d(1d, 1d, 1d, this.getOpacity());
            gl.glEnable(GL.GL_BLEND);
            gl.glBlendFunc(GL.GL_SRC_ALPHA, GL.GL_ONE_MINUS_SRC_ALPHA);
        }
        else
        {
            gl.glPushAttrib(GL.GL_COLOR_BUFFER_BIT | GL2.GL_POLYGON_BIT);
        }

        gl.glPolygonMode(GL.GL_FRONT, GL2.GL_FILL);
        gl.glEnable(GL.GL_CULL_FACE);
        gl.glCullFace(GL.GL_BACK);

        dc.setPerFrameStatistic(PerformanceStatistic.IMAGE_TILE_COUNT, this.tileCountName,
            this.currentTiles.size());
        dc.getGeographicSurfaceTileRenderer().renderTiles(dc, this.currentTiles);

        gl.glPopAttrib();

        if (this.drawTileIDs)
            this.drawTileIDs(dc, this.currentTiles);

        if (this.drawBoundingVolumes)
            this.drawBoundingVolumes(dc, this.currentTiles);

        this.currentTiles.clear();
    }

    this.sendRequests();
    this.requestQ.clear();
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
@Override
public void init(GLAutoDrawable drawable) {

    if(clContext == null) {

        // find gl compatible device
        CLDevice[] devices = CLPlatform.getDefault().listCLDevices();
        CLDevice device = null;
        for (CLDevice d : devices) {
            if(d.isGLMemorySharingSupported()) {
                device = d;
                break;
            }
        }
        if(null==device) {
            throw new RuntimeException("couldn't find any CL/GL memory sharing devices ..");
        }
        // create OpenCL context before creating any OpenGL objects
        // you want to share with OpenCL (AMD driver requirement)
        clContext = CLGLContext.create(drawable.getContext(), device);

        // enable GL error checking using the composable pipeline
        drawable.setGL(new DebugGL2(drawable.getGL().getGL2()));

        // OpenGL initialization
        GL2 gl = drawable.getGL().getGL2();

        gl.setSwapInterval(1);

        gl.glPolygonMode(GL2.GL_FRONT_AND_BACK, GL2.GL_LINE);

        gl.glGenBuffers(glObjects.length, glObjects, 0);

//        gl.glBindBuffer(GL2.GL_ELEMENT_ARRAY_BUFFER, glObjects[INDICES]);
//        gl.glBufferData(GL2.GL_ELEMENT_ARRAY_BUFFER, ib.capacity() * SIZEOF_INT, ib, GL2.GL_STATIC_DRAW);
//        gl.glBindBuffer(GL2.GL_ELEMENT_ARRAY_BUFFER, 0);

        final int bsz = MESH_SIZE * MESH_SIZE * 4 * SIZEOF_FLOAT;
        gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
            gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, glObjects[VERTICES]);
            gl.glBufferData(GL2.GL_ARRAY_BUFFER, bsz, null, GL2.GL_DYNAMIC_DRAW);
            gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, 0);
        gl.glDisableClientState(GL2.GL_VERTEX_ARRAY);                       

        pushPerspectiveView(gl);
        gl.glFinish();

        // init OpenCL
        initCL(gl, bsz);

        // start rendering thread
        Animator animator = new Animator(drawable);
        animator.start();

    }
}
 

import javax.media.opengl.GL2; //導入方法依賴的package包/類
/**
	 * {@inheritDoc}
	 *
	 * @see org.openimaj.vis.Visualisation3D#renderVis(javax.media.opengl.GLAutoDrawable)
	 */
	@Override
	protected void renderVis( final GLAutoDrawable drawable )
	{
		if( this.resetCamera )
			this.setupCamera();

		final GL2 gl = drawable.getGL().getGL2();

		gl.glPushMatrix();
		gl.glMatrixMode( GLMatrixFunc.GL_MODELVIEW );

		// Determine whether we're creating lines or quads
		switch( this.renderType )
		{
			case POINTS:
				gl.glBegin( GL.GL_POINTS );
				break;
			case LINE:
				gl.glBegin( GL.GL_LINES );
				break;
			case SOLID_AND_WIRE:
				gl.glEnable( GL.GL_POLYGON_OFFSET_FILL );
				gl.glPolygonOffset( 1, 1 );
			case SOLID:
			case TEXTURED:
				gl.glBegin( GL2.GL_QUADS );
			    gl.glPolygonMode( GL.GL_FRONT_AND_BACK, GL2GL3.GL_FILL );
			    break;
			case WIRE:
				break;
			default:
				break;
		}

		this.renderHeightMap( gl );

		gl.glDisable( GL.GL_POLYGON_OFFSET_FILL );
		if( this.renderType == HeightMapType.SOLID_AND_WIRE )
		{
			final ColourMap cm = this.colourMap;
			this.colourMap = null;
			this.colour = new float[] { 0f,0f,0f };

			gl.glEnd();
			gl.glBegin( GL.GL_LINE_STRIP );
			this.renderType = HeightMapType.WIRE;

			gl.glDisable( GLLightingFunc.GL_LIGHTING );
		    gl.glDisable( GLLightingFunc.GL_LIGHT0 );

			this.renderHeightMap( gl );

			this.renderType = HeightMapType.SOLID_AND_WIRE;
			this.colourMap = cm;
		}

		gl.glEnd();

		// Reset stuff
		gl.glColor4f( 1.0f, 1.0f, 1.0f, 1.0f );
//	    gl.glPolygonMode( GL.GL_FRONT_AND_BACK, GL2GL3.GL_FILL );

		gl.glPopMatrix();
	}