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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN""http://www.w3.org/TR/REC-html40/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc on Sun Jun 23 01:50:29 PDT 2002 --><TITLE>LinearFog (Java 3D API)</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"></HEAD><SCRIPT>function asd(){parent.document.title="LinearFog (Java 3D API)";}</SCRIPT><BODY BGCOLOR="white" onload="asd();"><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_top"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3"> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM></EM></TD></TR><TR><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../javax/media/j3d/Light.html"><B>PREV CLASS</B></A> <A HREF="../../../javax/media/j3d/LineArray.html"><B>NEXT CLASS</B></A></FONT></TD><TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../index.html" TARGET="_top"><B>FRAMES</B></A> <A HREF="LinearFog.html" TARGET="_top"><B>NO FRAMES</B></A> <SCRIPT> <!-- if(window==top) { document.writeln('<A HREF="../../../allclasses-noframe.html" TARGET=""><B>All Classes</B></A>'); } //--></SCRIPT><NOSCRIPT><A HREF="../../../allclasses-noframe.html" TARGET=""><B>All Classes</B></A></NOSCRIPT></FONT></TD></TR><TR><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#field_summary">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD><TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">DETAIL: <A HREF="#field_detail">FIELD</A> | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD></TR></TABLE><!-- =========== END OF NAVBAR =========== --><HR><!-- ======== START OF CLASS DATA ======== --><H2><FONT SIZE="-1">javax.media.j3d</FONT><BR>Class LinearFog</H2><PRE>java.lang.Object | +--<A HREF="../../../javax/media/j3d/SceneGraphObject.html">javax.media.j3d.SceneGraphObject</A> | +--<A HREF="../../../javax/media/j3d/Node.html">javax.media.j3d.Node</A> | +--<A HREF="../../../javax/media/j3d/Leaf.html">javax.media.j3d.Leaf</A> | +--<A HREF="../../../javax/media/j3d/Fog.html">javax.media.j3d.Fog</A> | +--<B>javax.media.j3d.LinearFog</B></PRE><HR><DL><DT>public class <B>LinearFog</B><DT>extends <A HREF="../../../javax/media/j3d/Fog.html">Fog</A></DL><P>The LinearFog leaf node defines fog distance parameters for linear fog. LinearFog extends the Fog node by adding a pair of distance values, in Z, at which the fog should start obscuring the scene and should maximally obscure the scene. <P> The front and back fog distances are defined in the local coordinate system of the node, but the actual fog equation will ideally take place in eye coordinates. <P> The linear fog blending factor, f, is computed as follows: <P><UL> f = backDistance - z / backDistance - frontDistance<P> where <ul>z is the distance from the viewpoint.<br> frontDistance is the distance at which fog starts obscuring objects.<br> backDistance is the distance at which fog totally obscurs objects. </ul><P></UL><P><P><HR><P><!-- ======== NESTED CLASS SUMMARY ======== --><!-- =========== FIELD SUMMARY =========== --><A NAME="field_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Field Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/LinearFog.html#ALLOW_DISTANCE_READ">ALLOW_DISTANCE_READ</A></B></CODE><BR> Specifies that this LinearFog node allows read access to its distance information.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static int</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/LinearFog.html#ALLOW_DISTANCE_WRITE">ALLOW_DISTANCE_WRITE</A></B></CODE><BR> Specifies that this LinearFog node allows write access to its distance information.</TD></TR></TABLE> <A NAME="fields_inherited_from_class_javax.media.j3d.Fog"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Fog.html">Fog</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Fog.html#ALLOW_COLOR_READ">ALLOW_COLOR_READ</A>, <A HREF="../../../javax/media/j3d/Fog.html#ALLOW_COLOR_WRITE">ALLOW_COLOR_WRITE</A>, <A HREF="../../../javax/media/j3d/Fog.html#ALLOW_INFLUENCING_BOUNDS_READ">ALLOW_INFLUENCING_BOUNDS_READ</A>, <A HREF="../../../javax/media/j3d/Fog.html#ALLOW_INFLUENCING_BOUNDS_WRITE">ALLOW_INFLUENCING_BOUNDS_WRITE</A>, <A HREF="../../../javax/media/j3d/Fog.html#ALLOW_SCOPE_READ">ALLOW_SCOPE_READ</A>, <A HREF="../../../javax/media/j3d/Fog.html#ALLOW_SCOPE_WRITE">ALLOW_SCOPE_WRITE</A></CODE></TD></TR></TABLE> <A NAME="fields_inherited_from_class_javax.media.j3d.Node"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Fields inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Node.html">Node</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Node.html#ALLOW_AUTO_COMPUTE_BOUNDS_READ">ALLOW_AUTO_COMPUTE_BOUNDS_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_AUTO_COMPUTE_BOUNDS_WRITE">ALLOW_AUTO_COMPUTE_BOUNDS_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_BOUNDS_READ">ALLOW_BOUNDS_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_BOUNDS_WRITE">ALLOW_BOUNDS_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_COLLIDABLE_READ">ALLOW_COLLIDABLE_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_COLLIDABLE_WRITE">ALLOW_COLLIDABLE_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_LOCAL_TO_VWORLD_READ">ALLOW_LOCAL_TO_VWORLD_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_PICKABLE_READ">ALLOW_PICKABLE_READ</A>, <A HREF="../../../javax/media/j3d/Node.html#ALLOW_PICKABLE_WRITE">ALLOW_PICKABLE_WRITE</A>, <A HREF="../../../javax/media/j3d/Node.html#ENABLE_COLLISION_REPORTING">ENABLE_COLLISION_REPORTING</A>, <A HREF="../../../javax/media/j3d/Node.html#ENABLE_PICK_REPORTING">ENABLE_PICK_REPORTING</A></CODE></TD></TR></TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --><A NAME="constructor_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Constructor Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/LinearFog.html#LinearFog()">LinearFog</A></B>()</CODE><BR> Constructs a LinearFog node with default parameters.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/LinearFog.html#LinearFog(javax.vecmath.Color3f)">LinearFog</A></B>(<A HREF="../../../javax/vecmath/Color3f.html">Color3f</A> color)</CODE><BR> Constructs a LinearFog node with the specified fog color.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/LinearFog.html#LinearFog(javax.vecmath.Color3f, double, double)">LinearFog</A></B>(<A HREF="../../../javax/vecmath/Color3f.html">Color3f</A> color, double frontDistance, double backDistance)</CODE><BR> Constructs a LinearFog node with the specified fog color and distances.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/LinearFog.html#LinearFog(float, float, float)">LinearFog</A></B>(float r, float g, float b)</CODE><BR> Constructs a LinearFog node with the specified fog color.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><B><A HREF="../../../javax/media/j3d/LinearFog.html#LinearFog(float, float, float, double, double)">LinearFog</A></B>(float r, float g, float b, double frontDistance, double backDistance)</CODE><BR> Constructs a LinearFog node with the specified fog color and distances.</TD></TR></TABLE> <!-- ========== METHOD SUMMARY =========== --><A NAME="method_summary"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2"><B>Method Summary</B></FONT></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> <A HREF="../../../javax/media/j3d/Node.html">Node</A></CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/LinearFog.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> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/LinearFog.html#getBackDistance()">getBackDistance</A></B>()</CODE><BR> Gets back distance for fog.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE> double</CODE></FONT></TD><TD><CODE><B><A HREF="../../../javax/media/j3d/LinearFog.html#getFrontDistance()">getFrontDistance</A></B>()</CODE><BR> Gets front distance for fog.</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/LinearFog.html#setBackDistance(double)">setBackDistance</A></B>(double backDistance)</CODE><BR> Sets back distance for fog.</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/LinearFog.html#setFrontDistance(double)">setFrontDistance</A></B>(double frontDistance)</CODE><BR> Sets front distance for fog.</TD></TR></TABLE> <A NAME="methods_inherited_from_class_javax.media.j3d.Fog"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Fog.html">Fog</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../../../javax/media/j3d/Fog.html#addScope(javax.media.j3d.Group)">addScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#getAllScopes()">getAllScopes</A>, <A HREF="../../../javax/media/j3d/Fog.html#getColor(javax.vecmath.Color3f)">getColor</A>, <A HREF="../../../javax/media/j3d/Fog.html#getInfluencingBoundingLeaf()">getInfluencingBoundingLeaf</A>, <A HREF="../../../javax/media/j3d/Fog.html#getInfluencingBounds()">getInfluencingBounds</A>, <A HREF="../../../javax/media/j3d/Fog.html#getScope(int)">getScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#indexOfScope(javax.media.j3d.Group)">indexOfScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#insertScope(javax.media.j3d.Group, int)">insertScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#numScopes()">numScopes</A>, <A HREF="../../../javax/media/j3d/Fog.html#removeAllScopes()">removeAllScopes</A>, <A HREF="../../../javax/media/j3d/Fog.html#removeScope(javax.media.j3d.Group)">removeScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#removeScope(int)">removeScope</A>, <A HREF="../../../javax/media/j3d/Fog.html#setColor(javax.vecmath.Color3f)">setColor</A>, <A HREF="../../../javax/media/j3d/Fog.html#setColor(float, float, float)">setColor</A>, <A HREF="../../../javax/media/j3d/Fog.html#setInfluencingBoundingLeaf(javax.media.j3d.BoundingLeaf)">setInfluencingBoundingLeaf</A>, <A HREF="../../../javax/media/j3d/Fog.html#setInfluencingBounds(javax.media.j3d.Bounds)">setInfluencingBounds</A>, <A HREF="../../../javax/media/j3d/Fog.html#setScope(javax.media.j3d.Group, int)">setScope</A>, <A HREF="../../../javax/media/j3d/Fog.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" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class javax.media.j3d.<A HREF="../../../javax/media/j3d/Node.html">Node</A></B></TD></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#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" CELLPADDING="3" CELLSPACING="0" WIDTH="100%">⌨️ 快捷键说明
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