mapcontext.html

Geotools是一个开源的Java GIS工具包,可利用它来开发符合标准的地理信息系统。Geotools提供了OGC(Open Geospatial Consortium)规范的一个实现来作为他们的

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the current coordinate system.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#getKeywords()">getKeywords</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get an array of keywords associated with this context, returns an empty
 array if no keywords have been set. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/map/MapLayer.html" title="interface in org.geotools.map">MapLayer</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#getLayer(int)">getLayer</A></B>(int&nbsp;index)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return the requested layer.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/geometry/jts/ReferencedEnvelope.html" title="class in org.geotools.geometry.jts">ReferencedEnvelope</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#getLayerBounds()">getLayerBounds</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the bounding box of all the layers in this MapContext. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#getLayerCount()">getLayerCount</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the number of layers in this map context</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/map/MapLayer.html" title="interface in org.geotools.map">MapLayer</A>[]</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#getLayers()">getLayers</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return this model's list of layers. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#getTitle()">getTitle</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Get the title, returns an empty string if it has not been set yet.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#indexOf(org.geotools.map.MapLayer)">indexOf</A></B>(<A HREF="../../../org/geotools/map/MapLayer.html" title="interface in org.geotools.map">MapLayer</A>&nbsp;layer)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns the index of the first occurrence of the specified layer, or -1
 if this list does not contain this element.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Iterator.html" title="class or interface in java.util">Iterator</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#iterator()">iterator</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Returns an iterator over the layers in this context in proper sequence.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#moveLayer(int, int)">moveLayer</A></B>(int&nbsp;sourcePosition,
          int&nbsp;destPosition)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Moves a layer from a position to another. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;<A HREF="../../../org/geotools/map/MapLayer.html" title="interface in org.geotools.map">MapLayer</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#removeLayer(int)">removeLayer</A></B>(int&nbsp;index)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Remove a layer and trigger a <CODE>LayerListEvent</CODE>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#removeLayer(org.geotools.map.MapLayer)">removeLayer</A></B>(<A HREF="../../../org/geotools/map/MapLayer.html" title="interface in org.geotools.map">MapLayer</A>&nbsp;layer)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Remove a layer, if present, and trigger a <CODE>LayerListEvent</CODE>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#removeLayers(org.geotools.map.MapLayer[])">removeLayers</A></B>(<A HREF="../../../org/geotools/map/MapLayer.html" title="interface in org.geotools.map">MapLayer</A>[]&nbsp;layers)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Remove an array of layers and trigger a <CODE>LayerListEvent</CODE>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#removeMapBoundsListener(org.geotools.map.event.MapBoundsListener)">removeMapBoundsListener</A></B>(<A HREF="../../../org/geotools/map/event/MapBoundsListener.html" title="interface in org.geotools.map.event">MapBoundsListener</A>&nbsp;listener)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Remove interest in receiving a <CODE>BoundingBoxEvent</CODE>s.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#removeMapLayerListListener(org.geotools.map.event.MapLayerListListener)">removeMapLayerListListener</A></B>(<A HREF="../../../org/geotools/map/event/MapLayerListListener.html" title="interface in org.geotools.map.event">MapLayerListListener</A>&nbsp;listener)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Remove interest in receiving <CODE>LayerListEvent</CODE>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#removePropertyChangeListener(java.beans.PropertyChangeListener)">removePropertyChangeListener</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/beans/PropertyChangeListener.html" title="class or interface in java.beans">PropertyChangeListener</A>&nbsp;listener)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Removes PropertyChangeListener from the list of listeners.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#setAbstract(java.lang.String)">setAbstract</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;conAbstract)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set an abstract which describes this context.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#setAreaOfInterest(com.vividsolutions.jts.geom.Envelope)">setAreaOfInterest</A></B>(<A HREF="http://www.jump-project.org/docs/jts/1.7/api/com/vividsolutions/jts/geom/Envelope.html" title="class or interface in com.vividsolutions.jts.geom">Envelope</A>&nbsp;areaOfInterest)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Deprecated.</B>&nbsp;<I></I>&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#setAreaOfInterest(com.vividsolutions.jts.geom.Envelope, org.opengis.referencing.crs.CoordinateReferenceSystem)">setAreaOfInterest</A></B>(<A HREF="http://www.jump-project.org/docs/jts/1.7/api/com/vividsolutions/jts/geom/Envelope.html" title="class or interface in com.vividsolutions.jts.geom">Envelope</A>&nbsp;areaOfInterest,
                  CoordinateReferenceSystem&nbsp;coordinateReferenceSystem)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set a new area of interest and trigger a <CODE>BoundingBoxEvent</CODE>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#setAreaOfInterest(org.geotools.geometry.jts.ReferencedEnvelope)">setAreaOfInterest</A></B>(<A HREF="../../../org/geotools/geometry/jts/ReferencedEnvelope.html" title="class in org.geotools.geometry.jts">ReferencedEnvelope</A>&nbsp;areaOfInterest)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set a new area of interest and trigger an <CODE>BoundingBoxEvent</CODE>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#setContactInformation(java.lang.String)">setContactInformation</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;contactInformation)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set contact inforation associated with this class.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#setCoordinateReferenceSystem(org.opengis.referencing.crs.CoordinateReferenceSystem)">setCoordinateReferenceSystem</A></B>(CoordinateReferenceSystem&nbsp;crs)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the <code>CoordinateReferenceSystem</code> for this map context.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#setKeywords(java.lang.String[])">setKeywords</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[]&nbsp;keywords)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set an array of keywords to associate with this context.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#setTitle(java.lang.String)">setTitle</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>&nbsp;title)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set the title of this context.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/geotools/map/MapContext.html#transform(java.awt.geom.AffineTransform)">transform</A></B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/geom/AffineTransform.html" title="class or interface in java.awt.geom">AffineTransform</A>&nbsp;transform)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Transform the coordinates according to the provided transform. </TD>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ============ FIELD DETAIL =========== -->


<!-- ========= CONSTRUCTOR DETAIL ======== -->


<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="addLayer(org.geotools.map.MapLayer)"><!-- --></A><H3>
addLayer</H3>
<PRE>
public boolean <B>addLayer</B>(<A HREF="../../../org/geotools/map/MapLayer.html" title="interface in org.geotools.map">MapLayer</A>&nbsp;layer)</PRE>
<DL>
<DD>Add a new layer if not already present and trigger a
 <CODE>LayerListEvent</CODE>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>layer</CODE> - the layer to be inserted
<DT><B>Returns:</B><DD>true if the layer has been added, false otherwise</DL>
</DD>
</DL>
<HR>

<A NAME="addLayer(int, org.geotools.map.MapLayer)"><!-- --></A><H3>
addLayer</H3>
<PRE>
public boolean <B>addLayer</B>(int&nbsp;index,
                        <A HREF="../../../org/geotools/map/MapLayer.html" title="interface in org.geotools.map">MapLayer</A>&nbsp;layer)</PRE>
<DL>
<DD>Add a new layer in the specified position and trigger a
 <CODE>LayerListEvent</CODE>. Layer won't be added if it's already in the
 list.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>index</CODE> - index at which the layer will be inserted<DD><CODE>layer</CODE> - the layer to be inserted
<DT><B>Returns:</B><DD>true if the layer has been added, false otherwise</DL>
</DD>
</DL>
<HR>

<A NAME="addLayer(org.geotools.data.FeatureSource, org.geotools.styling.Style)"><!-- --></A><H3>
addLayer</H3>
<PRE>
public void <B>addLayer</B>(<A HREF="../../../org/geotools/data/FeatureSource.html" title="interface in org.geotools.data">FeatureSource</A>&nbsp;featureSource,
                     <A HREF="../../../org/geotools/styling/Style.html" title="interface in org.geotools.styling">Style</A>&nbsp;style)</PRE>
<DL>
<DD>Add a new layer and trigger a <CODE>LayerListEvent</CODE>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>featureSource</CODE> - a FeatureSource with the new layer that will be added.</DL>
</DD>
</DL>
<HR>

<A NAME="addLayer(org.geotools.feature.FeatureCollection, org.geotools.styling.Style)"><!-- --></A><H3>
addLayer</H3>
<PRE>
public void <B>addLayer</B>(<A HREF="../../../org/geotools/feature/FeatureCollection.html" title="interface in org.geotools.feature">FeatureCollection</A>&nbsp;collection,
                     <A HREF="../../../org/geotools/styling/Style.html" title="interface in org.geotools.styling">Style</A>&nbsp;style)</PRE>
<DL>
<DD>Add a new layer and trigger a <CODE>LayerListEvent</CODE>.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>collection</CODE> - a FeatureCollection with the new layer that will be added.</DL>
</DD>
</DL>
<HR>

<A NAME="addLayer(org.opengis.coverage.grid.GridCoverage, org.geotools.styling.Style)"><!-- --></A><H3>
addLayer</H3>
<PRE>
public void <B>addLayer</B>(GridCoverage&nbsp;gridCoverage,