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Version:
4.4.5.dfsg-3ubuntu2 ▾
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<HTML>
<HEAD>
<TITLE>Contour line properties</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
<P><A NAME="contourcolors"></A>
<font size="+2" color="green">Contour line properties</font></P>
<TABLE border="1" cols="2" frame="box" rules="cols">
<TR>
<TD width="15%" valign="top"><B>Syntax</B>:</TD>
<TD width="85%" valign="top"><CODE>
CONTOUR\COLORS colr { x y } z nctr { min { incr }}<br>
CONTOUR\LINETYPES ltype { x y } z nctr { min { incr }}<br>
CONTOUR\LINEWIDTHS lwidth { x y } z nctr { min { incr }}<br>
CONTOUR\LINETYPES\LINEWIDTHS\COLORS colr ltype lwidth { x y } z nctr { min { incr }}<br>
CONTOUR\SPECIFIC\COLORS colr { x y } v lvls<br>
CONTOUR\SPECIFIC\LINETYPES ltype { x y } v lvls<br>
CONTOUR\SPECIFIC\LINEWIDTHS lwidth { x y } v lvls<br>
CONTOUR\SPECIFIC\LINEWIDTHS\LINETYPES\COLORS colr ltype lwidth ntrp { x y } v lvls</CODE>
</TD></TR>
</TABLE>
<P>
<font size="+1" color="green">Colors</font></P>
<P>
By default, contour lines are drawn in black. If the <code><font color="blue">\COLORS</font></code>
qualifier is used, a color vector, <CODE><font color="blue">colr</font></CODE>, is expected as the
first parameter. If the length of <CODE><font color="blue">colr</font></CODE> is less than the
number of contours requested, the colors are recycled. For example, entering
<tt>[-1;-1;-1;-1;-2]</tt> causes all contours to be drawn in black (fixed color code -1)
except for every fifth contour to be drawn in red (fixed color code -2). A positive numeric value
represents the index of the color in the currently loaded colormap, while a negative number
represents the index of the fixed color.</p>
<P>
<font size="+1" color="green">Line type and line width</font></P>
<P>
By default, contour lines are drawn with a width of one, and using line type one (a normal solid line).
The user can specify the type and width of each contour line using the
<code><font color="blue">\LINETYPES</font></code> and <code><font color="blue">\LINEWIDTHS</font></code>
qualifiers.</p>
<p>
If the <code><font color="blue">\LINETYPES</font></code>
qualifier is used, a linetype vector, <CODE><font color="blue">ltype</font></CODE>, is expected as the
first parameter (or the second parameter if the <code><font color="blue">\COLORS</font></code> is used
as well). If the length of <CODE><font color="blue">ltype</font></CODE> is less than the
number of contours requested, the linetypes are recycled. For example, entering
<tt>[1;1;1;1;2]</tt> causes all contours to be drawn using linetype 1 except for every fifth contour
to be drawn using linetype 2.</p>
<p>
If the <code><font color="blue">\LINEWIDTHS</font></code>
qualifier is used, a linewidth vector, <CODE><font color="blue">lwidth</font></CODE>, is expected as the
first parameter (or the second parameter if the <code><font color="blue">\COLORS</font></code> is used
as well, or the third parameter if the <code><font color="blue">\LINETYPES</font></code> is also used).
If the length of <CODE><font color="blue">lwidth</font></CODE> is less than the
number of contours requested, the linewidths are recycled. For example, entering
<tt>[1;1;1;1;2]</tt> causes all contours to be drawn using linewidth 1 except for every fifth contour
to be drawn using linewidth 2.</p>
<P>
<font size="+1" color="green">Contour labels</font></P>
<P>
By default, contours are labeled with the actual contour level. See the discussion on the
<a href="ContourS03.htm"><CODE><font color="blue">\LEGEND</font></CODE></a>
qualifier for an alternate contour labeling facility.</P>
<P>
The size of the contour labels is <CODE><font color="blue">
<a href="../Characteristics/contourlabelheight.htm">CONTOURLABELHEIGHT</a></font></CODE>
or <CODE><font color="blue">%CONTOURLABELHEIGHT</a></font></CODE>.
If labels are not desired on the contours, use the <nobr><CODE><font color="blue">
<a href="Set.htm">SET CONTOURLABELHEIGHT</a> 0</font></CODE></nobr>
command to set the label height to zero before entering the <CODE><font color="blue">CONTOUR</font></CODE>
command.</P>
<p>
<a href="ContourS01.htm"><img align="middle" border="0" src="../shadow_left.gif"> <font size="+1" color="olive">Contour level selection</font></a><br>
<a href="ContourS03.htm"><img align="middle" border="0" src="../shadow_right.gif"> <font size="+1" color="olive">Legend</font></a></P>
</body>
</html>