datetickunit.html

JFreeChart 9.20的文档 需要用JAVA在网页上做统计图的东东

<A NAME="DAY"><!-- --></A><H3>
DAY</H3>
<PRE>
public static final int <B>DAY</B></PRE>
<DL>
<DD>A constant for days.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.jfree.chart.axis.DateTickUnit.DAY">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="HOUR"><!-- --></A><H3>
HOUR</H3>
<PRE>
public static final int <B>HOUR</B></PRE>
<DL>
<DD>A constant for hours.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.jfree.chart.axis.DateTickUnit.HOUR">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="MINUTE"><!-- --></A><H3>
MINUTE</H3>
<PRE>
public static final int <B>MINUTE</B></PRE>
<DL>
<DD>A constant for minutes.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.jfree.chart.axis.DateTickUnit.MINUTE">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="SECOND"><!-- --></A><H3>
SECOND</H3>
<PRE>
public static final int <B>SECOND</B></PRE>
<DL>
<DD>A constant for seconds.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.jfree.chart.axis.DateTickUnit.SECOND">Constant Field Values</A></DL>
</DL>
<HR>

<A NAME="MILLISECOND"><!-- --></A><H3>
MILLISECOND</H3>
<PRE>
public static final int <B>MILLISECOND</B></PRE>
<DL>
<DD>A constant for milliseconds.
<P>
<DL>
<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#org.jfree.chart.axis.DateTickUnit.MILLISECOND">Constant Field Values</A></DL>
</DL>

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<A NAME="DateTickUnit(int, int)"><!-- --></A><H3>
DateTickUnit</H3>
<PRE>
public <B>DateTickUnit</B>(int&nbsp;unit,
                    int&nbsp;count)</PRE>
<DL>
<DD>Creates a new date tick unit.  The dates will be formatted using a SHORT format for the
 default locale.
<P>
<DT><B>Parameters:</B><DD><CODE>unit</CODE> - the unit.<DD><CODE>count</CODE> - the unit count.</DL>
<HR>

<A NAME="DateTickUnit(int, int, java.text.DateFormat)"><!-- --></A><H3>
DateTickUnit</H3>
<PRE>
public <B>DateTickUnit</B>(int&nbsp;unit,
                    int&nbsp;count,
                    java.text.DateFormat&nbsp;formatter)</PRE>
<DL>
<DD>Creates a new date tick unit.
 <P>
 You can specify the units using one of the constants YEAR, MONTH, DAY, HOUR, MINUTE,
 SECOND or MILLISECOND.  In addition, you can specify a unit count, and a date format.
<P>
<DT><B>Parameters:</B><DD><CODE>unit</CODE> - the unit.<DD><CODE>count</CODE> - the unit count.<DD><CODE>formatter</CODE> - the date formatter (defaults to DateFormat.SHORT).</DL>
<HR>

<A NAME="DateTickUnit(int, int, int, int, java.text.DateFormat)"><!-- --></A><H3>
DateTickUnit</H3>
<PRE>
public <B>DateTickUnit</B>(int&nbsp;unit,
                    int&nbsp;count,
                    int&nbsp;rollUnit,
                    int&nbsp;rollCount,
                    java.text.DateFormat&nbsp;formatter)</PRE>
<DL>
<DD>Creates a new unit.
<P>
<DT><B>Parameters:</B><DD><CODE>unit</CODE> - the unit.<DD><CODE>count</CODE> - the count.<DD><CODE>rollUnit</CODE> - the roll unit.<DD><CODE>rollCount</CODE> - the roll count.<DD><CODE>formatter</CODE> - the date formatter (defaults to DateFormat.SHORT).</DL>

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<A NAME="getUnit()"><!-- --></A><H3>
getUnit</H3>
<PRE>
public int <B>getUnit</B>()</PRE>
<DL>
<DD>Returns the date unit.  This will be one of the constants <code>YEAR</code>,
 <code>MONTH</code>, <code>DAY</code>, <code>HOUR</code>, <code>MINUTE</code>,
 <code>SECOND</code> or <code>MILLISECOND</code>, defined by this class.  Note that these
 constants do NOT correspond to those defined in Java's <code>Calendar</code> class.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the date unit.</DL>
</DD>
</DL>
<HR>

<A NAME="getCount()"><!-- --></A><H3>
getCount</H3>
<PRE>
public int <B>getCount</B>()</PRE>
<DL>
<DD>Returns the unit count.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the unit count.</DL>
</DD>
</DL>
<HR>

<A NAME="getRollUnit()"><!-- --></A><H3>
getRollUnit</H3>
<PRE>
public int <B>getRollUnit</B>()</PRE>
<DL>
<DD>Returns the roll unit.  This is the amount by which the tick advances if it is "hidden"
 when displayed on a segmented date axis.  Typically the roll will be smaller than the
 regular tick unit (for example, a 7 day tick unit might use a 1 day roll).
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the roll unit.</DL>
</DD>
</DL>
<HR>

<A NAME="getRollCount()"><!-- --></A><H3>
getRollCount</H3>
<PRE>
public int <B>getRollCount</B>()</PRE>
<DL>
<DD>Returns the roll count.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the roll count.</DL>
</DD>
</DL>
<HR>

<A NAME="valueToString(double)"><!-- --></A><H3>
valueToString</H3>
<PRE>
public java.lang.String <B>valueToString</B>(double&nbsp;milliseconds)</PRE>
<DL>
<DD>Formats a value.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/jfree/chart/axis/TickUnit.html#valueToString(double)">valueToString</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/axis/TickUnit.html" title="class in org.jfree.chart.axis">TickUnit</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>milliseconds</CODE> - date in milliseconds since 01-01-1970.
<DT><B>Returns:</B><DD>the formatted date.</DL>
</DD>
</DL>
<HR>

<A NAME="dateToString(java.util.Date)"><!-- --></A><H3>
dateToString</H3>
<PRE>
public java.lang.String <B>dateToString</B>(java.util.Date&nbsp;date)</PRE>
<DL>
<DD>Formats a date using the tick unit's formatter.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>date</CODE> - the date.
<DT><B>Returns:</B><DD>the formatted date.</DL>
</DD>
</DL>
<HR>

<A NAME="addToDate(java.util.Date)"><!-- --></A><H3>
addToDate</H3>
<PRE>
public java.util.Date <B>addToDate</B>(java.util.Date&nbsp;base)</PRE>
<DL>
<DD>Calculates a new date by adding this unit to the base date.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>base</CODE> - the base date.
<DT><B>Returns:</B><DD>a new date one unit after the base date.</DL>
</DD>
</DL>
<HR>

<A NAME="rollDate(java.util.Date)"><!-- --></A><H3>
rollDate</H3>
<PRE>
public java.util.Date <B>rollDate</B>(java.util.Date&nbsp;base)</PRE>
<DL>
<DD>Rolls the date forward by the amount specified by the roll unit and count.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>base</CODE> - the base date.
<DT><B>Returns:</B><DD>the rolled date.</DL>
</DD>
</DL>
<HR>

<A NAME="getCalendarField()"><!-- --></A><H3>
getCalendarField</H3>
<PRE>
public int <B>getCalendarField</B>()</PRE>
<DL>
<DD>Returns a field code that can be used with the <code>Calendar</code> class.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the field code.</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(java.lang.Object&nbsp;obj)</PRE>
<DL>
<DD>Tests this unit for equality with another object.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../../org/jfree/chart/axis/TickUnit.html#equals(java.lang.Object)">equals</A></CODE> in class <CODE><A HREF="../../../../org/jfree/chart/axis/TickUnit.html" title="class in org.jfree.chart.axis">TickUnit</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - the object.
<DT><B>Returns:</B><DD><code>true</code> or <code>false</code>.</DL>
</DD>
</DL>
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