graduation.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

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<A NAME="VISUAL_AXIS_LENGTH"><!-- --></A><H3>
VISUAL_AXIS_LENGTH</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/RenderingHints.Key.html" title="class or interface in java.awt">RenderingHints.Key</A> <B>VISUAL_AXIS_LENGTH</B></PRE>
<DL>
<DD>Rendering hint for the axis length, in pixels or points (1/72 of inch).
 Values for this key must be <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Number.html" title="class or interface in java.lang"><CODE>Number</CODE></A> objects. This hint is used
 together with <A HREF="../../../org/geotools/axis/Graduation.html#VISUAL_TICK_SPACING"><CODE>VISUAL_TICK_SPACING</CODE></A> during <A HREF="../../../org/geotools/axis/TickIterator.html" title="interface in org.geotools.axis"><CODE>TickIterator</CODE></A>
 creation in order to compute a tick increment value.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/axis/Graduation.html#getTickIterator(java.awt.RenderingHints, org.geotools.axis.TickIterator)"><CODE>getTickIterator(java.awt.RenderingHints, org.geotools.axis.TickIterator)</CODE></A></DL>
</DL>
<HR>

<A NAME="VISUAL_TICK_SPACING"><!-- --></A><H3>
VISUAL_TICK_SPACING</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/RenderingHints.Key.html" title="class or interface in java.awt">RenderingHints.Key</A> <B>VISUAL_TICK_SPACING</B></PRE>
<DL>
<DD>Rendering hint for the preferred spacing between ticks, in pixels or points
 (1/72 of inch). Values for this key must be <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Number.html" title="class or interface in java.lang"><CODE>Number</CODE></A> objects. This hint
 is used together with <A HREF="../../../org/geotools/axis/Graduation.html#VISUAL_AXIS_LENGTH"><CODE>VISUAL_AXIS_LENGTH</CODE></A> during <A HREF="../../../org/geotools/axis/TickIterator.html" title="interface in org.geotools.axis"><CODE>TickIterator</CODE></A>
 creation in order to compute a tick increment value. The tick spacing really
 used may be slightly different, since <A HREF="../../../org/geotools/axis/TickIterator.html" title="interface in org.geotools.axis"><CODE>TickIterator</CODE></A> may choose a rounded
 value.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/axis/Graduation.html#getTickIterator(java.awt.RenderingHints, org.geotools.axis.TickIterator)"><CODE>getTickIterator(java.awt.RenderingHints, org.geotools.axis.TickIterator)</CODE></A></DL>
</DL>
<HR>

<A NAME="TICK_LABEL_FONT"><!-- --></A><H3>
TICK_LABEL_FONT</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/RenderingHints.Key.html" title="class or interface in java.awt">RenderingHints.Key</A> <B>TICK_LABEL_FONT</B></PRE>
<DL>
<DD>The font to use for rendering tick labels. Value for this key must be a <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/Font.html" title="class or interface in java.awt"><CODE>Font</CODE></A>
 object. If this hint is not provided, a default font will be used.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/axis/Axis2D.html#paint(java.awt.Graphics2D)"><CODE>Axis2D.paint(java.awt.Graphics2D)</CODE></A></DL>
</DL>
<HR>

<A NAME="AXIS_TITLE_FONT"><!-- --></A><H3>
AXIS_TITLE_FONT</H3>
<PRE>
public static final <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/RenderingHints.Key.html" title="class or interface in java.awt">RenderingHints.Key</A> <B>AXIS_TITLE_FONT</B></PRE>
<DL>
<DD>The font to use for rendering the title. Value for this key must be a <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/Font.html" title="class or interface in java.awt"><CODE>Font</CODE></A> object.
 If this hint is not provided, a default font will be used.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/axis/Axis2D.html#paint(java.awt.Graphics2D)"><CODE>Axis2D.paint(java.awt.Graphics2D)</CODE></A></DL>
</DL>

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


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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TD COLSPAN=1><FONT SIZE="+2">
<B>Method Detail</B></FONT></TD>
</TR>
</TABLE>

<A NAME="getMinimum()"><!-- --></A><H3>
getMinimum</H3>
<PRE>
public double <B>getMinimum</B>()</PRE>
<DL>
<DD>Returns the minimal value for this graduation.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The minimal value in <A HREF="../../../org/geotools/axis/Graduation.html#getUnit()"><CODE>getUnit()</CODE></A> units.<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/axis/Graduation.html#getMaximum()"><CODE>getMaximum()</CODE></A>, 
<A HREF="../../../org/geotools/axis/Graduation.html#getRange()"><CODE>getRange()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getMaximum()"><!-- --></A><H3>
getMaximum</H3>
<PRE>
public double <B>getMaximum</B>()</PRE>
<DL>
<DD>Returns the maximal value for this graduation.
<P>
<DD><DL>

<DT><B>Returns:</B><DD>The maximal value in <A HREF="../../../org/geotools/axis/Graduation.html#getUnit()"><CODE>getUnit()</CODE></A> units.<DT><B>See Also:</B><DD><A HREF="../../../org/geotools/axis/Graduation.html#getMinimum()"><CODE>getMinimum()</CODE></A>, 
<A HREF="../../../org/geotools/axis/Graduation.html#getRange()"><CODE>getRange()</CODE></A></DL>
</DD>
</DL>
<HR>

<A NAME="getRange()"><!-- --></A><H3>
getRange</H3>
<PRE>
public double <B>getRange</B>()</PRE>
<DL>
<DD>Returns the graduation's range. This is equivalents to computing
 <code><A HREF="../../../org/geotools/axis/Graduation.html#getMaximum()"><CODE>getMaximum()</CODE></A>-<A HREF="../../../org/geotools/axis/Graduation.html#getMinimum()"><CODE>getMinimum()</CODE></A></code>. However, some
 implementation may optimize this computation in order to avoid rounding errors.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getTitle(boolean)"><!-- --></A><H3>
getTitle</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>getTitle</B>(boolean&nbsp;includeSymbol)</PRE>
<DL>
<DD>Returns the axis title. If  is , then the returned string
 will includes units as in "Temperature (癈)", or time zone as in "Start time (UTC)". The
 exact formatting is local-dependent.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>includeSymbol</CODE> -  to format the unit or timezone symbol after the name.
<DT><B>Returns:</B><DD>The graduation name (also to be use as axis title).</DL>
</DD>
</DL>
<HR>

<A NAME="getUnit()"><!-- --></A><H3>
getUnit</H3>
<PRE>
public <A HREF="http://jsr-108.sourceforge.net/javadoc/javax/units/Unit.html" title="class or interface in javax.units">Unit</A> <B>getUnit</B>()</PRE>
<DL>
<DD>Returns the graduation's units, or  if unknow.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getLocale()"><!-- --></A><H3>
getLocale</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Locale.html" title="class or interface in java.util">Locale</A> <B>getLocale</B>()</PRE>
<DL>
<DD>Returns the locale to use for formatting title and labels.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getFormat()"><!-- --></A><H3>
getFormat</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/text/Format.html" title="class or interface in java.text">Format</A> <B>getFormat</B>()</PRE>
<DL>
<DD>Returns the format to use for formatting labels. The format really used by
 <A HREF="../../../org/geotools/axis/TickIterator.html#currentLabel()"><CODE>TickIterator.currentLabel()</CODE></A> may not be the same. For example, some
 iterators may adjust automatically the number of fraction digits.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getTickIterator(java.awt.RenderingHints, org.geotools.axis.TickIterator)"><!-- --></A><H3>
getTickIterator</H3>
<PRE>
public <A HREF="../../../org/geotools/axis/TickIterator.html" title="interface in org.geotools.axis">TickIterator</A> <B>getTickIterator</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/RenderingHints.html" title="class or interface in java.awt">RenderingHints</A>&nbsp;hints,
                                    <A HREF="../../../org/geotools/axis/TickIterator.html" title="interface in org.geotools.axis">TickIterator</A>&nbsp;reuse)</PRE>
<DL>
<DD>Returns an iterator object that iterates along the graduation ticks and provides access to
 the graduation values. If an optional <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/awt/RenderingHints.html" title="class or interface in java.awt"><CODE>RenderingHints</CODE></A> is specified, tick locations are
 adjusted according values for <A HREF="../../../org/geotools/axis/Graduation.html#VISUAL_AXIS_LENGTH"><CODE>VISUAL_AXIS_LENGTH</CODE></A> and <A HREF="../../../org/geotools/axis/Graduation.html#VISUAL_TICK_SPACING"><CODE>VISUAL_TICK_SPACING</CODE></A>
 keys.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>hints</CODE> - Rendering hints for the axis, or  for the default hints.<DD><CODE>reuse</CODE> - An iterator to reuse if possible, or  to create a new one. A
         non-null object may help to reduce the number of object garbage-collected when
         rendering the axis.
<DT><B>Returns:</B><DD>A iterator to use for iterating through the graduation. This
         iterator may or may not be the  object.</DL>
</DD>
</DL>
<HR>

<A NAME="addPropertyChangeListener(java.beans.PropertyChangeListener)"><!-- --></A><H3>
addPropertyChangeListener</H3>
<PRE>
public void <B>addPropertyChangeListener</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)</PRE>
<DL>
<DD>Adds a <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/beans/PropertyChangeListener.html" title="class or interface in java.beans"><CODE>PropertyChangeListener</CODE></A> to the listener list.
 The listener is registered for all properties, such as "label"
 and "locale".
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="removePropertyChangeListener(java.beans.PropertyChangeListener)"><!-- --></A><H3>
removePropertyChangeListener</H3>
<PRE>
public void <B>removePropertyChangeListener</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)</PRE>
<DL>
<DD>Removes a <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/beans/PropertyChangeListener.html" title="class or interface in java.beans"><CODE>PropertyChangeListener</CODE></A> from the listener list.
<P>
<DD><DL>
</DL>
</DD>
</DL>
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