Class PanamaGLOffscreenCanvas

java.lang.Object

org.jzy3d.plot3d.rendering.canvas.PanamaGLOffscreenCanvas

All Implemented Interfaces:

ICanvas

public class PanamaGLOffscreenCanvas
extends Object
implements ICanvas

A canvas rendering a chart in an offscreen buffer without any window, e.g. to generate images on a server or in tests. The GL context is created and used by a dedicated thread : every rendering is performed by this thread, and methods triggering a rendering wait for it to complete.

Field Summary

Fields

Modifier and Type	Field	Description
protected List<ICanvasListener>	canvasListeners
protected panamagl.opengl.GLContext	context
protected ExecutorService	executor
protected panamagl.factory.PanamaGLFactory	factory
protected panamagl.offscreen.FBO	fbo
protected panamagl.opengl.GL	gl
protected Thread	glThread
protected int	height
protected BufferedImage	image	The last rendered image
protected panamagl.offscreen.FBOReader	reader
protected Renderer3D	renderer
protected View	view
protected int	width

Fields inherited from interface ICanvas

ALLOW_WATCH_PIXEL_SCALE, LAST_RENDER_TIME_UNDEFINED

Constructor Summary

Constructors

Constructor	Description
PanamaGLOffscreenCanvas(IChartFactory chartFactory, Scene scene, Quality quality, panamagl.factory.PanamaGLFactory factory, int width, int height)

Method Summary

Modifier and Type	Method	Description
void	addCanvasListener(ICanvasListener listener)
void	addKeyController(Object o)
void	addMouseController(Object o)
void	dispose()
void	forceRepaint()
List<ICanvasListener>	getCanvasListeners()
String	getDebugInfo()
Dimension	getDimension()
double	getLastRenderingTimeMs()
Coord2d	getPixelScale()
Coord2d	getPixelScaleJVM()
Renderer3D	getRenderer()
int	getRendererHeight()
int	getRendererWidth()
View	getView()
boolean	isNative()
void	removeCanvasListener(ICanvasListener listener)
void	removeKeyController(Object o)
void	removeMouseController(Object o)
protected void	render(boolean reshape)	Render the chart and keep the rendered image.
protected void	runOnGLThread(Runnable task)	Run the task on the thread owning the GL context and wait for its completion.
Object	screenshot()	Render the chart and return the image, a BufferedImage.
void	screenshot(File file)
void	setPixelScale(float[] scale)	An offscreen canvas has no pixel scale.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface ICanvas

setPixelScale

Field Details

view

protected View view

renderer

protected Renderer3D renderer

factory

protected panamagl.factory.PanamaGLFactory factory

context

protected panamagl.opengl.GLContext context

gl

protected panamagl.opengl.GL gl

fbo

protected panamagl.offscreen.FBO fbo

reader

protected panamagl.offscreen.FBOReader reader

width

protected int width

height

protected int height

executor

protected ExecutorService executor

glThread

protected Thread glThread

image

protected BufferedImage image

The last rendered image

canvasListeners

protected List<ICanvasListener> canvasListeners

Constructor Details

PanamaGLOffscreenCanvas

public PanamaGLOffscreenCanvas(IChartFactory chartFactory,
 Scene scene,
 Quality quality,
 panamagl.factory.PanamaGLFactory factory,
 int width,
 int height)

Method Details

render

protected void render(boolean reshape)

Render the chart and keep the rendered image. Must be invoked by the GL thread.

runOnGLThread

protected void runOnGLThread(Runnable task)

Run the task on the thread owning the GL context and wait for its completion. Run it immediately if called from this thread.

forceRepaint

public void forceRepaint()

Specified by:

forceRepaint in interface ICanvas

screenshot

public Object screenshot()

Render the chart and return the image, a BufferedImage.

Specified by:

screenshot in interface ICanvas

screenshot

public void screenshot(File file)
                throws IOException

Specified by:

screenshot in interface ICanvas

Throws:

IOException

dispose

public void dispose()

Specified by:

dispose in interface ICanvas

getView

public View getView()

Specified by:

getView in interface ICanvas

getRenderer

public Renderer3D getRenderer()

isNative

public boolean isNative()

Specified by:

isNative in interface ICanvas

getRendererWidth

public int getRendererWidth()

Specified by:

getRendererWidth in interface ICanvas

getRendererHeight

public int getRendererHeight()

Specified by:

getRendererHeight in interface ICanvas

getDimension

public Dimension getDimension()

Specified by:

getDimension in interface ICanvas

getDebugInfo

public String getDebugInfo()

Specified by:

getDebugInfo in interface ICanvas

setPixelScale

public void setPixelScale(float[] scale)

An offscreen canvas has no pixel scale.

Specified by:

setPixelScale in interface ICanvas

getPixelScale

public Coord2d getPixelScale()

Specified by:

getPixelScale in interface ICanvas

getPixelScaleJVM

public Coord2d getPixelScaleJVM()

Specified by:

getPixelScaleJVM in interface ICanvas

getLastRenderingTimeMs

public double getLastRenderingTimeMs()

Specified by:

getLastRenderingTimeMs in interface ICanvas

addMouseController

public void addMouseController(Object o)

Specified by:

addMouseController in interface ICanvas

addKeyController

public void addKeyController(Object o)

Specified by:

addKeyController in interface ICanvas

removeMouseController

public void removeMouseController(Object o)

Specified by:

removeMouseController in interface ICanvas

removeKeyController

public void removeKeyController(Object o)

Specified by:

removeKeyController in interface ICanvas

addCanvasListener

public void addCanvasListener(ICanvasListener listener)

Specified by:

addCanvasListener in interface ICanvas

removeCanvasListener

public void removeCanvasListener(ICanvasListener listener)

Specified by:

removeCanvasListener in interface ICanvas

getCanvasListeners

public List<ICanvasListener> getCanvasListeners()

Specified by:

getCanvasListeners in interface ICanvas