graphicscontext3d.html

java 3d帮助文档

<DD><DL>

<DT><B>Returns:</B><DD>the enumeration object of all the sounds</DL>
</DD>
</DL>
<HR>

<A NAME="addSound(javax.media.j3d.Sound)"><!-- --></A><H3>
addSound</H3>
<PRE>
public void <B>addSound</B>(<A HREF="../../../javax/media/j3d/Sound.html">Sound</A>&nbsp;sound)</PRE>
<DL>
<DD>Appends the specified sound to this graphics context's list of sounds.
 Adding a sound to the list of sounds implicitly starts the
 sound playing. Once a sound is finished playing, it can be 
 restarted by setting the sound's enable flag to true. 
 The scheduling region of all sounds in the list is ignored 
 for immediate-mode rendering.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>sound</CODE> - the sound to add
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../javax/media/j3d/IllegalSharingException.html">IllegalSharingException</A></CODE> - if the Sound node
 is part of or is subsequently made part of a live scene graph.
<DD><CODE>java.lang.NullPointerException</CODE> - if the Sound object is null.</DL>
</DD>
</DL>
<HR>

<A NAME="numSounds()"><!-- --></A><H3>
numSounds</H3>
<PRE>
public int <B>numSounds</B>()</PRE>
<DL>
<DD>Retrieves the current number of sounds in this graphics context.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the current number of sounds</DL>
</DD>
</DL>
<HR>

<A NAME="isSoundPlaying(int)"><!-- --></A><H3>
isSoundPlaying</H3>
<PRE>
public boolean <B>isSoundPlaying</B>(int&nbsp;index)</PRE>
<DL>
<DD>Retrieves the sound playing flag.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - which sound
<DT><B>Returns:</B><DD>flag denoting if sound is currently playing</DL>
</DD>
</DL>
<HR>

<A NAME="setAuralAttributes(javax.media.j3d.AuralAttributes)"><!-- --></A><H3>
setAuralAttributes</H3>
<PRE>
public void <B>setAuralAttributes</B>(<A HREF="../../../javax/media/j3d/AuralAttributes.html">AuralAttributes</A>&nbsp;attributes)</PRE>
<DL>
<DD>Sets the current AuralAttributes object to the specified
 AuralAttributes component object.
 This means that the application may modify individual 
 audio attributes by using the appropriate methods in 
 the Aural-Attributes object.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>attributes</CODE> - the new AuralAttributes object</DL>
</DD>
</DL>
<HR>

<A NAME="getAuralAttributes()"><!-- --></A><H3>
getAuralAttributes</H3>
<PRE>
public <A HREF="../../../javax/media/j3d/AuralAttributes.html">AuralAttributes</A> <B>getAuralAttributes</B>()</PRE>
<DL>
<DD>Retrieves the current AuralAttributes component object.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the current AuralAttributes object</DL>
</DD>
</DL>
<HR>

<A NAME="setBufferOverride(boolean)"><!-- --></A><H3>
setBufferOverride</H3>
<PRE>
public void <B>setBufferOverride</B>(boolean&nbsp;bufferOverride)</PRE>
<DL>
<DD>Sets a flag that specifies whether the double buffering and
 stereo mode from the Canvas3D are overridden.  When set to
 true, this attribute enables the
 <code>frontBufferRendering</code> and <code>stereoMode</code>
 attributes.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>bufferOverride</CODE> - the new buffer override flag<DT><B>Since:</B><DD>Java 3D 1.2</DD>
</DD>
<DT><B>See Also:</B><DD><A HREF="../../../javax/media/j3d/GraphicsContext3D.html#setFrontBufferRendering(boolean)"><CODE>setFrontBufferRendering(boolean)</CODE></A>, 
<A HREF="../../../javax/media/j3d/GraphicsContext3D.html#setStereoMode(int)"><CODE>setStereoMode(int)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getBufferOverride()"><!-- --></A><H3>
getBufferOverride</H3>
<PRE>
public boolean <B>getBufferOverride</B>()</PRE>
<DL>
<DD>Returns the current buffer override flag.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>true if buffer override is enabled; otherwise,
 false is returned<DT><B>Since:</B><DD>Java 3D 1.2</DD>
</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="setFrontBufferRendering(boolean)"><!-- --></A><H3>
setFrontBufferRendering</H3>
<PRE>
public void <B>setFrontBufferRendering</B>(boolean&nbsp;frontBufferRendering)</PRE>
<DL>
<DD>Sets a flag that enables or disables immediate mode rendering
 into the front buffer of a double buffered Canvas3D.
 This attribute is only used when the
 <code>bufferOverride</code> flag is enabled.
 <p>
 Note that this attribute has no effect if double buffering
 is disabled or is not available on the Canvas3D.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>frontBufferRendering</CODE> - the new front buffer rendering flag<DT><B>Since:</B><DD>Java 3D 1.2</DD>
</DD>
<DT><B>See Also:</B><DD><A HREF="../../../javax/media/j3d/GraphicsContext3D.html#setBufferOverride(boolean)"><CODE>setBufferOverride(boolean)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getFrontBufferRendering()"><!-- --></A><H3>
getFrontBufferRendering</H3>
<PRE>
public boolean <B>getFrontBufferRendering</B>()</PRE>
<DL>
<DD>Returns the current front buffer rendering flag.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>true if front buffer rendering is enabled; otherwise,
 false is returned<DT><B>Since:</B><DD>Java 3D 1.2</DD>
</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="setStereoMode(int)"><!-- --></A><H3>
setStereoMode</H3>
<PRE>
public void <B>setStereoMode</B>(int&nbsp;stereoMode)</PRE>
<DL>
<DD>Sets the stereo mode for immediate mode rendering.  The
 parameter specifies which stereo buffer or buffers is rendered
 into.  This attribute is only used when the
 <code>bufferOverride</code> flag is enabled.
 <ul>
 <li>
 <code>STEREO_LEFT</code> specifies that rendering is done into
 the left eye.
 </li>
 <li>
 <code>STEREO_RIGHT</code> specifies that rendering is done into
 the right eye.
 </li>
 <li>
 <code>STEREO_BOTH</code> specifies that rendering is done into
 both eyes.  This is the default.
 </li>
 </ul>

 <p>
 Note that this attribute has no effect if stereo is disabled or
 is not available on the Canvas3D.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>stereoMode</CODE> - the new stereo mode<DT><B>Since:</B><DD>Java 3D 1.2</DD>
</DD>
<DT><B>See Also:</B><DD><A HREF="../../../javax/media/j3d/GraphicsContext3D.html#setBufferOverride(boolean)"><CODE>setBufferOverride(boolean)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getStereoMode()"><!-- --></A><H3>
getStereoMode</H3>
<PRE>
public int <B>getStereoMode</B>()</PRE>
<DL>
<DD>Returns the current stereo mode.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the stereo mode, one of <code>STEREO_LEFT</code>,
 <code>STEREO_RIGHT</code>, or <code>STEREO_BOTH</code>.<DT><B>Since:</B><DD>Java 3D 1.2</DD>
</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="clear()"><!-- --></A><H3>
clear</H3>
<PRE>
public void <B>clear</B>()</PRE>
<DL>
<DD>Clear the Canvas3D to the color or image specified by the
 current background node.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="draw(javax.media.j3d.Geometry)"><!-- --></A><H3>
draw</H3>
<PRE>
public void <B>draw</B>(<A HREF="../../../javax/media/j3d/Geometry.html">Geometry</A>&nbsp;geometry)</PRE>
<DL>
<DD>Draw the specified Geometry component object.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>geometry</CODE> - the Geometry object to draw.</DL>
</DD>
</DL>
<HR>

<A NAME="draw(javax.media.j3d.Shape3D)"><!-- --></A><H3>
draw</H3>
<PRE>
public void <B>draw</B>(<A HREF="../../../javax/media/j3d/Shape3D.html">Shape3D</A>&nbsp;shape)</PRE>
<DL>
<DD>Draw the specified Shape3D leaf node object.  This is
 a convenience method that is identical to calling the
 setAppearance(Appearance) and draw(Geometry) methods
 passing the appearance and geometry component objects of
 the specified shape node as arguments.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>shape</CODE> - the Shape3D node containing the Appearance component
 object to set and Geometry component object to draw
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../javax/media/j3d/IllegalSharingException.html">IllegalSharingException</A></CODE> - if the Shape3D node
 is part of or is subsequently made part of a live scene graph.</DL>
</DD>
</DL>
<HR>

<A NAME="readRaster(javax.media.j3d.Raster)"><!-- --></A><H3>
readRaster</H3>
<PRE>
public void <B>readRaster</B>(<A HREF="../../../javax/media/j3d/Raster.html">Raster</A>&nbsp;raster)</PRE>
<DL>
<DD>Read an image from the frame buffer and copy it into the
 ImageComponent and/or DepthComponent
 objects referenced by the specified Raster object.
 All parameters of the Raster object and the component ImageComponent
 and/or DepthComponentImage objects must be set to the desired values
 prior to calling this method.  These values determine the location,
 size, and format of the pixel data that is read.
 This method calls <code>flush(true)</code> prior to reading the
 frame buffer.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>raster</CODE> - the Raster object used to read the
 contents of the frame buffer
<DT><B>Throws:</B>
<DD><CODE>java.lang.IllegalArgumentException</CODE> - if the Raster's
 ImageComponent2D is in by-reference mode and its RenderedImage
 is not an instance of a BufferedImage.
<DD><CODE><A HREF="../../../javax/media/j3d/IllegalSharingException.html">IllegalSharingException</A></CODE> - if the Raster object
 is part of a live scene graph.<DT><B>See Also:</B><DD><A HREF="../../../javax/media/j3d/GraphicsContext3D.html#flush(boolean)"><CODE>flush(boolean)</CODE></A>, 
<A HREF="../../../javax/media/j3d/ImageComponent.html"><CODE>ImageComponent</CODE></A>, 
<A HREF="../../../javax/media/j3d/DepthComponent.html"><CODE>DepthComponent</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="flush(boolean)"><!-- --></A><H3>
flush</H3>
<PRE>
public void <B>flush</B>(boolean&nbsp;wait)</PRE>
<DL>
<DD>Flushes all previously executed rendering operations to the
 drawing buffer for this 3D graphics context.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>wait</CODE> - flag indicating whether or not to wait for the
 rendering to be complete before returning from this call.<DT><B>Since:</B><DD>Java 3D 1.2</DD>
</DD>
</DL>
</DD>
</DL>
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