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float concentration)</CODE><BR> Constructs and initializes a SpotLight node using the specified parameters.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/SpotLight.html#SpotLight(javax.vecmath.Color3f, javax.vecmath.Point3f, javax.vecmath.Point3f, javax.vecmath.Vector3f, float, float)">SpotLight</A></B>(<A HREF="../../../javax/vecmath/Color3f.html" title="class in javax.vecmath">Color3f</A> color, <A HREF="../../../javax/vecmath/Point3f.html" title="class in javax.vecmath">Point3f</A> position, <A HREF="../../../javax/vecmath/Point3f.html" title="class in javax.vecmath">Point3f</A> attenuation, <A HREF="../../../javax/vecmath/Vector3f.html" title="class in javax.vecmath">Vector3f</A> direction, float spreadAngle, float concentration)</CODE><BR> Constructs and initializes a SpotLight node using the specified parameters.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><B>Method Summary</B></FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../javax/media/j3d/Node.html" title="class in javax.media.j3d">Node</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/SpotLight.html#cloneNode(boolean)">cloneNode</A></B>(boolean forceDuplicate)</CODE><BR> Used to create a new instance of the node.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/SpotLight.html#getConcentration()">getConcentration</A></B>()</CODE><BR> Gets spot light concentration.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/SpotLight.html#getDirection(javax.vecmath.Vector3f)">getDirection</A></B>(<A HREF="../../../javax/vecmath/Vector3f.html" title="class in javax.vecmath">Vector3f</A> direction)</CODE><BR> Gets this Light's current direction and places it in the parameter specified.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> float</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/SpotLight.html#getSpreadAngle()">getSpreadAngle</A></B>()</CODE><BR> Gets spot light spread angle.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/SpotLight.html#setConcentration(float)">setConcentration</A></B>(float concentration)</CODE><BR> Sets spot light concentration.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/SpotLight.html#setDirection(float, float, float)">setDirection</A></B>(float x, float y, float z)</CODE><BR> Sets light direction.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/SpotLight.html#setDirection(javax.vecmath.Vector3f)">setDirection</A></B>(<A HREF="../../../javax/vecmath/Vector3f.html" title="class in javax.vecmath">Vector3f</A> direction)</CODE><BR> Sets this Light's current direction and places it in the parameter specified.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> void</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/SpotLight.html#setSpreadAngle(float)">setSpreadAngle</A></B>(float spreadAngle)</CODE><BR> Sets spot light spread angle.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.PointLight"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/PointLight.html" title="class in javax.media.j3d">PointLight</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/PointLight.html#getAttenuation(javax.vecmath.Point3f)">getAttenuation</A>, <A HREF="../../../javax/media/j3d/PointLight.html#getPosition(javax.vecmath.Point3f)">getPosition</A>, <A HREF="../../../javax/media/j3d/PointLight.html#setAttenuation(float, float, float)">setAttenuation</A>, <A HREF="../../../javax/media/j3d/PointLight.html#setAttenuation(javax.vecmath.Point3f)">setAttenuation</A>, <A HREF="../../../javax/media/j3d/PointLight.html#setPosition(float, float, float)">setPosition</A>, <A HREF="../../../javax/media/j3d/PointLight.html#setPosition(javax.vecmath.Point3f)">setPosition</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.Light"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Light.html" title="class in javax.media.j3d">Light</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Light.html#addScope(javax.media.j3d.Group)">addScope</A>, <A HREF="../../../javax/media/j3d/Light.html#getAllScopes()">getAllScopes</A>, <A HREF="../../../javax/media/j3d/Light.html#getColor(javax.vecmath.Color3f)">getColor</A>, <A HREF="../../../javax/media/j3d/Light.html#getEnable()">getEnable</A>, <A HREF="../../../javax/media/j3d/Light.html#getInfluencingBoundingLeaf()">getInfluencingBoundingLeaf</A>, <A HREF="../../../javax/media/j3d/Light.html#getInfluencingBounds()">getInfluencingBounds</A>, <A HREF="../../../javax/media/j3d/Light.html#getScope(int)">getScope</A>, <A HREF="../../../javax/media/j3d/Light.html#indexOfScope(javax.media.j3d.Group)">indexOfScope</A>, <A HREF="../../../javax/media/j3d/Light.html#insertScope(javax.media.j3d.Group, int)">insertScope</A>, <A HREF="../../../javax/media/j3d/Light.html#numScopes()">numScopes</A>, <A HREF="../../../javax/media/j3d/Light.html#removeAllScopes()">removeAllScopes</A>, <A HREF="../../../javax/media/j3d/Light.html#removeScope(javax.media.j3d.Group)">removeScope</A>, <A HREF="../../../javax/media/j3d/Light.html#removeScope(int)">removeScope</A>, <A HREF="../../../javax/media/j3d/Light.html#setColor(javax.vecmath.Color3f)">setColor</A>, <A HREF="../../../javax/media/j3d/Light.html#setEnable(boolean)">setEnable</A>, <A HREF="../../../javax/media/j3d/Light.html#setInfluencingBoundingLeaf(javax.media.j3d.BoundingLeaf)">setInfluencingBoundingLeaf</A>, <A HREF="../../../javax/media/j3d/Light.html#setInfluencingBounds(javax.media.j3d.Bounds)">setInfluencingBounds</A>, <A HREF="../../../javax/media/j3d/Light.html#setScope(javax.media.j3d.Group, int)">setScope</A>, <A HREF="../../../javax/media/j3d/Light.html#updateNodeReferences(javax.media.j3d.NodeReferenceTable)">updateNodeReferences</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.Node"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Node.html" title="class in javax.media.j3d">Node</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Node.html#cloneTree()">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#cloneTree(boolean)">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#cloneTree(boolean, boolean)">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#cloneTree(javax.media.j3d.NodeReferenceTable)">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#cloneTree(javax.media.j3d.NodeReferenceTable, boolean)">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#cloneTree(javax.media.j3d.NodeReferenceTable, boolean, boolean)">cloneTree</A>, <A HREF="../../../javax/media/j3d/Node.html#duplicateNode(javax.media.j3d.Node, boolean)">duplicateNode</A>, <A HREF="../../../javax/media/j3d/Node.html#getBounds()">getBounds</A>, <A HREF="../../../javax/media/j3d/Node.html#getBoundsAutoCompute()">getBoundsAutoCompute</A>, <A HREF="../../../javax/media/j3d/Node.html#getCollidable()">getCollidable</A>, <A HREF="../../../javax/media/j3d/Node.html#getLocale()">getLocale</A>, <A HREF="../../../javax/media/j3d/Node.html#getLocalToVworld(javax.media.j3d.SceneGraphPath, javax.media.j3d.Transform3D)">getLocalToVworld</A>, <A HREF="../../../javax/media/j3d/Node.html#getLocalToVworld(javax.media.j3d.Transform3D)">getLocalToVworld</A>, <A HREF="../../../javax/media/j3d/Node.html#getParent()">getParent</A>, <A HREF="../../../javax/media/j3d/Node.html#getPickable()">getPickable</A>, <A HREF="../../../javax/media/j3d/Node.html#setBounds(javax.media.j3d.Bounds)">setBounds</A>, <A HREF="../../../javax/media/j3d/Node.html#setBoundsAutoCompute(boolean)">setBoundsAutoCompute</A>, <A HREF="../../../javax/media/j3d/Node.html#setCollidable(boolean)">setCollidable</A>, <A HREF="../../../javax/media/j3d/Node.html#setPickable(boolean)">setPickable</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.SceneGraphObject"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/SceneGraphObject.html" title="class in javax.media.j3d">SceneGraphObject</A></B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/SceneGraphObject.html#clearCapability(int)">clearCapability</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#clearCapabilityIsFrequent(int)">clearCapabilityIsFrequent</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#duplicateSceneGraphObject(javax.media.j3d.SceneGraphObject)">duplicateSceneGraphObject</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#getCapability(int)">getCapability</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#getCapabilityIsFrequent(int)">getCapabilityIsFrequent</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#getName()">getName</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#getUserData()">getUserData</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#isCompiled()">isCompiled</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#isLive()">isLive</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#setCapability(int)">setCapability</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#setCapabilityIsFrequent(int)">setCapabilityIsFrequent</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#setName(java.lang.String)">setName</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#setUserData(java.lang.Object)">setUserData</A>, <A HREF="../../../javax/media/j3d/SceneGraphObject.html#toString()">toString</A></CODE></TD></TR></TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD></TR></TABLE> <P><!-- ============ FIELD DETAIL =========== --><A NAME="field_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"><B>Field Detail</B></FONT></TH></TR></TABLE><A NAME="ALLOW_SPREAD_ANGLE_WRITE"><!-- --></A><H3>ALLOW_SPREAD_ANGLE_WRITE</H3><PRE>public static final int <B>ALLOW_SPREAD_ANGLE_WRITE</B></PRE><DL><DD>Specifies that the Node allows writing to its spot lights spread angle information.<P><DL><DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#javax.media.j3d.SpotLight.ALLOW_SPREAD_ANGLE_WRITE">Constant Field Values</A></DL></DL><HR><A NAME="ALLOW_SPREAD_ANGLE_READ"><!-- --></A><H3>ALLOW_SPREAD_ANGLE_READ</H3><PRE>public static final int <B>ALLOW_SPREAD_ANGLE_READ</B></PRE><DL><DD>Specifies that the Node allows reading its spot lights spread angle information.<P><DL><DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#javax.media.j3d.SpotLight.ALLOW_SPREAD_ANGLE_READ">Constant Field Values</A></DL></DL><HR><A NAME="ALLOW_CONCENTRATION_WRITE"><!-- --></A><H3>ALLOW_CONCENTRATION_WRITE</H3><PRE>public static final int <B>ALLOW_CONCENTRATION_WRITE</B></PRE><DL><DD>Specifies that the Node allows writing to its spot lights concentration information.<P><DL><DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#javax.media.j3d.SpotLight.ALLOW_CONCENTRATION_WRITE">Constant Field Values</A></DL></DL><HR><A NAME="ALLOW_CONCENTRATION_READ"><!-- --></A><H3>ALLOW_CONCENTRATION_READ</H3><PRE>public static final int <B>ALLOW_CONCENTRATION_READ</B></PRE><DL><DD>Specifies that the Node allows reading its spot lights concentration information.<P><DL><DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#javax.media.j3d.SpotLight.ALLOW_CONCENTRATION_READ">Constant Field Values</A></DL></DL><HR><A NAME="ALLOW_DIRECTION_WRITE"><!-- --></A><H3>ALLOW_DIRECTION_WRITE</H3><PRE>public static final int <B>ALLOW_DIRECTION_WRITE</B></PRE><DL><DD>Specifies that the Node allows writing to its spot lights direction information.<P><DL><DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#javax.media.j3d.SpotLight.ALLOW_DIRECTION_WRITE">Constant Field Values</A></DL></DL><HR><A NAME="ALLOW_DIRECTION_READ"><!-- --></A><H3>ALLOW_DIRECTION_READ</H3><PRE>public static final int <B>ALLOW_DIRECTION_READ</B></PRE><DL><DD>Specifies that the Node allows reading its spot lights direction information.<P><DL><DT><B>See Also:</B><DD><A HREF="../../../constant-values.html#javax.media.j3d.SpotLight.ALLOW_DIRECTION_READ">Constant Field Values</A></DL></DL><!-- ========= CONSTRUCTOR DETAIL ======== --><A NAME="constructor_detail"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TH></TR></TABLE><A NAME="SpotLight()"><!-- --></A><H3>SpotLight</H3><PRE>public <B>SpotLight</B>()</PRE><DL><DD>Constructs a SpotLight node with default parameters. The default values are as follows: <ul> direction : (0,0,-1)<br> spread angle : <i>PI</i> radians<br> concentration : 0.0<br> </ul><P>⌨️ 快捷键说明
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