org.jzy3d.plot3d.primitives.axes

Class FeedbackBufferAxeBox

java.lang.Object

org.jzy3d.plot3d.primitives.axes.AxeBox

org.jzy3d.plot3d.primitives.axes.FeedbackBufferAxeBox

All Implemented Interfaces:

IAxe

public class FeedbackBufferAxeBox
extends AxeBox
implements IAxe

This AxeBox implementation was the first to appear in Jzy3d. It computes hidden faces via method getHiddenQuads using the OpenGL feedback buffer, which seems to fail on some laptop GPU. (especially Lenovo notepads).

Author:

Martin Pernollet

Field Summary

Fields inherited from class org.jzy3d.plot3d.primitives.axes.AxeBox

annotations, AXE_X, AXE_Y, AXE_Z, axeXquads, axeXx, axeXy, axeXz, axeYquads, axeYx, axeYy, axeYz, axeZquads, axeZx, axeZy, axeZz, boxBounds, center, layout, normx, normy, normz, PRECISION, quadIsHidden, quadx, quady, quadz, scale, spaceTransformer, txt, view, wholeBounds, xrange, yrange, zrange

Constructor Summary

Constructors

Constructor and Description
FeedbackBufferAxeBox(BoundingBox3d bbox)
FeedbackBufferAxeBox(BoundingBox3d bbox, IAxeLayout layout)

Method Summary

Modifier and Type	Method and Description
protected boolean[]	getEmptyTokens(int ntokens, float[] buffer, int size) This utility function inform wether a GL_PASS_THROUGH_TOKEN was followed by other OpenGL tokens (GL_POLYGON_TOKEN, GL_LINE_TOKEN, etc), or not.
protected boolean[]	getHiddenQuads(com.jogamp.opengl.GL gl) Render the cube into the feedback buffer, in order to parse feedback and determine which quad where displayed or not.
protected int	print3DcolorVertex(int size, int count, float[] buffer) Print out parameters of a gl call in 3dColor mode.
protected void	printHiddenQuads() Print out display status of quads.

Methods inherited from class org.jzy3d.plot3d.primitives.axes.AxeBox

addAnnotation, cullingDisable, cullingEnable, dispose, doTransform, draw, drawAxisLabel, drawAxisTickNumericLabel, drawAxisTicks, drawCube, drawFace, drawGrid, drawGridOnQuad, drawTickLine, drawTicks, drawTicks, drawTicksAndLabels, drawTicksAndLabelsX, drawTicksAndLabelsY, drawTicksAndLabelsZ, findClosestXaxe, findClosestYaxe, findClosestZaxe, getAnnotations, getAxisTicks, getBoxBounds, getCenter, getHiddenQuads, getLayout, getScale, getSpaceTransformer, getTextRenderer, getView, getWholeBounds, init, isX, isXDisplayed, isY, isYDisplayed, isZ, isZDisplayed, layoutHorizontal, layoutVertical, min, setAnnotations, setAxe, setAxeBox, setScale, setSpaceTransformer, setTextRenderer, setView, updateHiddenQuads, vertexGL2, vertexGLES2

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jzy3d.plot3d.primitives.axes.IAxe

dispose, draw, getAnnotations, getBoxBounds, getCenter, getLayout, getScale, getSpaceTransformer, setAnnotations, setAxe, setScale, setSpaceTransformer

Constructor Detail

FeedbackBufferAxeBox

public FeedbackBufferAxeBox(BoundingBox3d bbox)

FeedbackBufferAxeBox

public FeedbackBufferAxeBox(BoundingBox3d bbox,
                            IAxeLayout layout)

Method Detail

getHiddenQuads

protected boolean[] getHiddenQuads(com.jogamp.opengl.GL gl)

Render the cube into the feedback buffer, in order to parse feedback and determine which quad where displayed or not.

getEmptyTokens

protected boolean[] getEmptyTokens(int ntokens,
                                   float[] buffer,
                                   int size)

This utility function inform wether a GL_PASS_THROUGH_TOKEN was followed by other OpenGL tokens (GL_POLYGON_TOKEN, GL_LINE_TOKEN, etc), or not. In the first case, the given token is considered as non empty, in the other case, it is considered as empty. The expected use of this function is to inform the user wether a polygon has been displayed or not in the case Culling was activated. Note: this function is only intended to work in the case where gl.glFeedbackBuffer is called with GL.GL_3D_COLOR as second argument, i.e. vertices are made of x, y, z, alpha values and a color. Thus, no texture may be used, and trying to parse a GL_BITMAP_TOKEN, GL_DRAW_PIXEL_TOKEN, or GL_COPY_PIXEL_TOKEN will throw a RuntimeException. Note: this function only works with PASS_THROUGH_TOKEN with a positive integer value, since this value will be used as an index in the boolean array returned by the function TODO: use a map to associate a float token to a polygon with an id?

Throws:

a - RuntimeException if a parsed token is either GL_BITMAP_TOKEN, GL_DRAW_PIXEL_TOKEN, or GL_COPY_PIXEL_TOKEN.

print3DcolorVertex

protected int print3DcolorVertex(int size,
                                 int count,
                                 float[] buffer)

Print out parameters of a gl call in 3dColor mode.

Overrides:

print3DcolorVertex in class AxeBox

printHiddenQuads

protected void printHiddenQuads()

Print out display status of quads.

Overrides:

printHiddenQuads in class AxeBox