pointsound.html

JAVA多媒体开发类库说明

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<A NAME="getPosition(javax.vecmath.Point3f)"><!-- --></A><H3>
getPosition</H3>
<PRE>
public void <B>getPosition</B>(<A HREF="../../../javax/vecmath/Point3f.html" title="class in javax.vecmath">Point3f</A>&nbsp;position)</PRE>
<DL>
<DD>Retrieves this sound's direction and places it in the
 vector provided.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>position</CODE> - the variable to receive the direction vector
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../javax/media/j3d/CapabilityNotSetException.html" title="class in javax.media.j3d">CapabilityNotSetException</A></CODE> - if appropriate capability is
 not set and this object is part of live or compiled scene graph</DL>
</DD>
</DL>
<HR>

<A NAME="setDistanceGain(javax.vecmath.Point2f[])"><!-- --></A><H3>
setDistanceGain</H3>
<PRE>
public void <B>setDistanceGain</B>(<A HREF="../../../javax/vecmath/Point2f.html" title="class in javax.vecmath">Point2f</A>[]&nbsp;attenuation)</PRE>
<DL>
<DD>Sets this sound's distance gain attenuation - where gain scale factor
 is applied to sound based on distance listener is from sound source.
 This form of setDistanceGain takes these pairs of values as an array of
 Point2f.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>attenuation</CODE> - defined by pairs of (distance,gain-scale-factor)
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../javax/media/j3d/CapabilityNotSetException.html" title="class in javax.media.j3d">CapabilityNotSetException</A></CODE> - if appropriate capability is
 not set and this object is part of live or compiled scene graph</DL>
</DD>
</DL>
<HR>

<A NAME="setDistanceGain(float[], float[])"><!-- --></A><H3>
setDistanceGain</H3>
<PRE>
public void <B>setDistanceGain</B>(float[]&nbsp;distance,
                            float[]&nbsp;gain)</PRE>
<DL>
<DD>Sets this sound's distance gain attenuation as an array of Point2fs.
 This form of setDistanceGain accepts two separate arrays for these values.
 The distance and gainScale arrays should be of the same length. If the 
 gainScale array length is greater than the distance array length, the 
 gainScale array elements beyond the length of the distance array are 
 ignored. If the gainScale array is shorter than the distance array, the
 last gainScale array value is repeated to fill an array of length equal
 to distance array.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>distance</CODE> - array of monotonically-increasing floats<DD><CODE>gain</CODE> - array of non-negative scale factors
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../javax/media/j3d/CapabilityNotSetException.html" title="class in javax.media.j3d">CapabilityNotSetException</A></CODE> - if appropriate capability is
 not set and this object is part of live or compiled scene graph</DL>
</DD>
</DL>
<HR>

<A NAME="getDistanceGainLength()"><!-- --></A><H3>
getDistanceGainLength</H3>
<PRE>
public int <B>getDistanceGainLength</B>()</PRE>
<DL>
<DD>Get the length of this node's distance gain attenuation arrays.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>distance gain attenuation array length
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../javax/media/j3d/CapabilityNotSetException.html" title="class in javax.media.j3d">CapabilityNotSetException</A></CODE> - if appropriate capability is
 not set and this object is part of live or compiled scene graph</DL>
</DD>
</DL>
<HR>

<A NAME="getDistanceGain(javax.vecmath.Point2f[])"><!-- --></A><H3>
getDistanceGain</H3>
<PRE>
public void <B>getDistanceGain</B>(<A HREF="../../../javax/vecmath/Point2f.html" title="class in javax.vecmath">Point2f</A>[]&nbsp;attenuation)</PRE>
<DL>
<DD>Gets this sound's distance attenuation. The distance attenuation
 pairs are copied into the specified array.
 The array must be large enough to hold all of the points. 
 The individual array elements must be allocated by the caller.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>attenuation</CODE> - arrays containing distance attenuation pairs
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../javax/media/j3d/CapabilityNotSetException.html" title="class in javax.media.j3d">CapabilityNotSetException</A></CODE> - if appropriate capability is
 not set and this object is part of live or compiled scene graph</DL>
</DD>
</DL>
<HR>

<A NAME="getDistanceGain(float[], float[])"><!-- --></A><H3>
getDistanceGain</H3>
<PRE>
public void <B>getDistanceGain</B>(float[]&nbsp;distance,
                            float[]&nbsp;gain)</PRE>
<DL>
<DD>Gets this sound's distance gain attenuation values in separate arrays.
 The arrays must be large enough to hold all of the values.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>distance</CODE> - array of float distance from sound source<DD><CODE>gain</CODE> - array of non-negative scale factors associated with
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../javax/media/j3d/CapabilityNotSetException.html" title="class in javax.media.j3d">CapabilityNotSetException</A></CODE> - if appropriate capability is
 not set and this object is part of live or compiled scene graph</DL>
</DD>
</DL>
<HR>

<A NAME="cloneNode(boolean)"><!-- --></A><H3>
cloneNode</H3>
<PRE>
public <A HREF="../../../javax/media/j3d/Node.html" title="class in javax.media.j3d">Node</A> <B>cloneNode</B>(boolean&nbsp;forceDuplicate)</PRE>
<DL>
<DD>Creates a new instance of the node.  This routine is called
 by <code>cloneTree</code> to duplicate the current node.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/media/j3d/Node.html#cloneNode(boolean)">cloneNode</A></CODE> in class <CODE><A HREF="../../../javax/media/j3d/Node.html" title="class in javax.media.j3d">Node</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>forceDuplicate</CODE> - when set to <code>true</code>, causes the
  <code>duplicateOnCloneTree</code> flag to be ignored.  When
  <code>false</code>, the value of each node's
  <code>duplicateOnCloneTree</code> variable determines whether
  NodeComponent data is duplicated or copied.<DT><B>See Also:</B><DD><A HREF="../../../javax/media/j3d/Node.html#cloneTree()"><CODE>Node.cloneTree()</CODE></A>, 
<A HREF="../../../javax/media/j3d/Node.html#cloneNode(boolean)"><CODE>Node.cloneNode(boolean)</CODE></A>, 
<A HREF="../../../javax/media/j3d/Node.html#duplicateNode(javax.media.j3d.Node, boolean)"><CODE>Node.duplicateNode(javax.media.j3d.Node, boolean)</CODE></A>, 
<A HREF="../../../javax/media/j3d/NodeComponent.html#setDuplicateOnCloneTree(boolean)"><CODE>NodeComponent.setDuplicateOnCloneTree(boolean)</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="duplicateNode(javax.media.j3d.Node, boolean)"><!-- --></A><H3>
duplicateNode</H3>
<PRE>
public void <B>duplicateNode</B>(<A HREF="../../../javax/media/j3d/Node.html" title="class in javax.media.j3d">Node</A>&nbsp;originalNode,
                          boolean&nbsp;forceDuplicate)</PRE>
<DL>
<DD>Copies all node information from <code>originalNode</code> into
 the current node.  This method is called from the
 <code>cloneNode</code> method which is, in turn, called by the
 <code>cloneTree</code> method.
 <P>
 For any <code>NodeComponent</code> objects
 contained by the object being duplicated, each <code>NodeComponent</code>
 object's <code>duplicateOnCloneTree</code> value is used to determine
 whether the <code>NodeComponent</code> should be duplicated in the new node
 or if just a reference to the current node should be placed in the
 new node.  This flag can be overridden by setting the
 <code>forceDuplicate</code> parameter in the <code>cloneTree</code>
 method to <code>true</code>.
 <br>
 NOTE: Applications should <i>not</i> call this method directly.
 It should only be called by the cloneNode method.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../javax/media/j3d/Node.html#duplicateNode(javax.media.j3d.Node, boolean)">duplicateNode</A></CODE> in class <CODE><A HREF="../../../javax/media/j3d/Node.html" title="class in javax.media.j3d">Node</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>originalNode</CODE> - the original node to duplicate.<DD><CODE>forceDuplicate</CODE> - when set to <code>true</code>, causes the
  <code>duplicateOnCloneTree</code> flag to be ignored.  When
  <code>false</code>, the value of each node's
  <code>duplicateOnCloneTree</code> variable determines whether
  NodeComponent data is duplicated or copied.
<DT><B>Throws:</B>
<DD><CODE>java.lang.ClassCastException</CODE> - if originalNode is not an instance of 
  <code>PointSound</code><DT><B>See Also:</B><DD><A HREF="../../../javax/media/j3d/Node.html#cloneTree()"><CODE>Node.cloneTree()</CODE></A>, 
<A HREF="../../../javax/media/j3d/Node.html#cloneNode(boolean)"><CODE>Node.cloneNode(boolean)</CODE></A>, 
<A HREF="../../../javax/media/j3d/NodeComponent.html#setDuplicateOnCloneTree(boolean)"><CODE>NodeComponent.setDuplicateOnCloneTree(boolean)</CODE></A></DL>
</DD>
</DL>
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