viewingplatform.html

JAVA多媒体开发类库说明

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<A NAME="setViewPlatform(javax.media.j3d.ViewPlatform)"><!-- --></A><H3>
setViewPlatform</H3>
<PRE>
public void <B>setViewPlatform</B>(<A HREF="../../../../../javax/media/j3d/ViewPlatform.html" title="class in javax.media.j3d">ViewPlatform</A>&nbsp;vp)</PRE>
<DL>
<DD>Sets the ViewPlatform node for this ViewingPlatform object.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>vp</CODE> - The ViewPlatform node to associate with this ViewingPlatform
  object.</DL>
</DD>
</DL>
<HR>

<A NAME="getViewPlatform()"><!-- --></A><H3>
getViewPlatform</H3>
<PRE>
public <A HREF="../../../../../javax/media/j3d/ViewPlatform.html" title="class in javax.media.j3d">ViewPlatform</A> <B>getViewPlatform</B>()</PRE>
<DL>
<DD>Returns the ViewPlatform node for this ViewingPlatform object.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The ViewPlatform node associated with this ViewingPlatform
  object.</DL>
</DD>
</DL>
<HR>

<A NAME="setPlatformGeometry(com.sun.j3d.utils.universe.PlatformGeometry)"><!-- --></A><H3>
setPlatformGeometry</H3>
<PRE>
public void <B>setPlatformGeometry</B>(<A HREF="../../../../../com/sun/j3d/utils/universe/PlatformGeometry.html" title="class in com.sun.j3d.utils.universe">PlatformGeometry</A>&nbsp;pg)</PRE>
<DL>
<DD>Assigns the geometry to associate with the ViewingPlatform.
 PlatformGeometry is used to hold any geometry to be associated
 with the ViewingPlatform.  If the ViewingPlatform is to be the
 inside of a car, for instance, than the PlatformGeometry could be
 the dashboard of the car.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>pg</CODE> - The geometry to be associated with this ViewingPlatform.
  Passing in null has the effect of deleting any geometry associated
  with this ViewingPlatform.</DL>
</DD>
</DL>
<HR>

<A NAME="getPlatformGeometry()"><!-- --></A><H3>
getPlatformGeometry</H3>
<PRE>
public <A HREF="../../../../../com/sun/j3d/utils/universe/PlatformGeometry.html" title="class in com.sun.j3d.utils.universe">PlatformGeometry</A> <B>getPlatformGeometry</B>()</PRE>
<DL>
<DD>Returns the PlatformGeometry associated with this ViewingPlatform
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The PlatformGeometry associated with this ViewingPlatform</DL>
</DD>
</DL>
<HR>

<A NAME="getMultiTransformGroup()"><!-- --></A><H3>
getMultiTransformGroup</H3>
<PRE>
public <A HREF="../../../../../com/sun/j3d/utils/universe/MultiTransformGroup.html" title="class in com.sun.j3d.utils.universe">MultiTransformGroup</A> <B>getMultiTransformGroup</B>()</PRE>
<DL>
<DD>Returns the MultitransformGroup object for this
 ViewingPlatform object.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The MultitransformGroup object.</DL>
</DD>
</DL>
<HR>

<A NAME="getViewPlatformTransform()"><!-- --></A><H3>
getViewPlatformTransform</H3>
<PRE>
public <A HREF="../../../../../javax/media/j3d/TransformGroup.html" title="class in javax.media.j3d">TransformGroup</A> <B>getViewPlatformTransform</B>()</PRE>
<DL>
<DD>Returns a reference to the "bottom most" transform in the
 MultiTransformGroup that is above the ViewPlatform node.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The TransformGroup that is immediately above the
  ViewPlatform object.</DL>
</DD>
</DL>
<HR>

<A NAME="setNominalViewingTransform()"><!-- --></A><H3>
setNominalViewingTransform</H3>
<PRE>
public void <B>setNominalViewingTransform</B>()</PRE>
<DL>
<DD>Sets the nominal viewing distance in the ViewPlatform transform based
 on the current field of view.  If the ViewAttachPolicy is not the
 default of View.NOMINAL_HEAD, then this method has no effect.<p>
 
 The ViewPlatform is moved back along Z so that objects at the origin
 spanning the normalized X range of -1.0 to +1.0 can be fully viewed
 across the width of the window.  This is done by setting a translation
 of 1/(tan(fieldOfView/2)) in the ViewPlatform transform.<p>

 If there is no Viewer object associated with this ViewingPlatform
 object the default field of view of PI/4.0 is used.<p>
 
 NOTE: Support for multiple Viewer objects is not available.  If
 multiple viewers are attached to this ViewingPlatform than a
 RuntimeException will be thrown.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setViewPlatformBehavior(com.sun.j3d.utils.behaviors.vp.ViewPlatformBehavior)"><!-- --></A><H3>
setViewPlatformBehavior</H3>
<PRE>
public void <B>setViewPlatformBehavior</B>(<A HREF="../../../../../com/sun/j3d/utils/behaviors/vp/ViewPlatformBehavior.html" title="class in com.sun.j3d.utils.behaviors.vp">ViewPlatformBehavior</A>&nbsp;behavior)</PRE>
<DL>
<DD>Sets the ViewPlatformBehavior which will operate on the ViewPlatform
 transform (the TransformGroup returned by
 ViewingPlatform.getViewPlatformTransform()). The ViewPlatformBehavior
 may be set after the ViewingPlatform is setLive().
 If a behavior is already present, it will be detached and it's
 setViewingPlatform method will be called with a parameter of null.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>behavior</CODE> - The ViewPlatformBehavior to add to the ViewingPlatform.
 null will remove the ViewingPlatform behavior.<DT><B>Since:</B></DT>
  <DD>Java 3D 1.2.1</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getViewPlatformBehavior()"><!-- --></A><H3>
getViewPlatformBehavior</H3>
<PRE>
public <A HREF="../../../../../com/sun/j3d/utils/behaviors/vp/ViewPlatformBehavior.html" title="class in com.sun.j3d.utils.behaviors.vp">ViewPlatformBehavior</A> <B>getViewPlatformBehavior</B>()</PRE>
<DL>
<DD>Returns the ViewPlatformBehavior
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the ViewPlatformBehavior for the ViewingPlatform.
 Returns null if there is no ViewPlatformBehavior set.<DT><B>Since:</B></DT>
  <DD>Java 3D 1.2.1</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getViewers()"><!-- --></A><H3>
getViewers</H3>
<PRE>
public <A HREF="../../../../../com/sun/j3d/utils/universe/Viewer.html" title="class in com.sun.j3d.utils.universe">Viewer</A>[] <B>getViewers</B>()</PRE>
<DL>
<DD>Returns the Viewers attached to this ViewingPlatform
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the Viewers attached to this viewing platform<DT><B>Since:</B></DT>
  <DD>Java 3D 1.3</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getUniverse()"><!-- --></A><H3>
getUniverse</H3>
<PRE>
public <A HREF="../../../../../com/sun/j3d/utils/universe/SimpleUniverse.html" title="class in com.sun.j3d.utils.universe">SimpleUniverse</A> <B>getUniverse</B>()</PRE>
<DL>
<DD>Returns the Universe to which this ViewingPlatform is attached
<P>
<DD><DL>

<DT><B>Returns:</B><DD>the Universe to which this ViewingPlatform is attached<DT><B>Since:</B></DT>
  <DD>Java 3D 1.3</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="setUniverse(com.sun.j3d.utils.universe.SimpleUniverse)"><!-- --></A><H3>
setUniverse</H3>
<PRE>
public void <B>setUniverse</B>(<A HREF="../../../../../com/sun/j3d/utils/universe/SimpleUniverse.html" title="class in com.sun.j3d.utils.universe">SimpleUniverse</A>&nbsp;universe)</PRE>
<DL>
<DD>Sets the Universe to which this ViewingPlatform is attached
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>universe</CODE> - the Universe to which this ViewingPlatform is attached<DT><B>Since:</B></DT>
  <DD>Java 3D 1.3</DD>
</DL>
</DD>
</DL>
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