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<H1><A NAME="SECTION0002000000000000000000">
20 Zap marks</A>
</H1>
<A NAME="module-zap"></A>
<P>
A zapping symbol is a zig-zag symbol that indicates that a certain
region of a plot is cut out due to space constraints. It's usually used
in conjunction with non-linear/non-logarithmic coordinate system.
See Section <A href="module-coord.html#module-coord">6.1</A>, for an sample of zap symbols.
<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
<td><nobr><b><tt id='l2h-340' xml:id='l2h-340' class="function">zap.zap_horizontally</tt></b>(</nobr></td>
<td><var>canvas, style, fill_style, x1, y1, x2, y2, xsize, ysize</var>)</td></tr></table></dt>
<dd>
Draw a horizontal "zapping" symbol on the canvas that shows
that a graph is ripped in the middle.
<P>
Parameter <var>fill_style</var> specifies the style for the zig-zag lines.
PAT specifies the pattern with which the area is filled.
The symbol is drawn in the rectangle (<var>x1</var>, <var>y1</var>) - (<var>x2</var>, <var>y2</var>).
Each "zigzag" has the width <var>xsize</var>, height <var>ysize</var>.
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<td><nobr><b><tt id='l2h-341' xml:id='l2h-341' class="function">zap.zap_vertically</tt></b>(</nobr></td>
<td><var>canvas, style, fill_style, x1, y1, x2, y2, xsize, ysize</var>)</td></tr></table></dt>
<dd>
Draw a vertical "zapping" symbol on the canvas that shows
that a graph is ripped in the middle.
<P>
Parameter <var>fill_style</var> specifies the style for the zig-zag lines.
PAT specifies the pattern with which the area is filled.
The symbol is drawn in the rectangle (<var>x1</var>, <var>y1</var>) - (<var>x2</var>, <var>y2</var>).
Each "zigzag" has the width <var>xsize</var>, height <var>ysize</var>.
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<span class="release-info">Documentation released on July 2, 2005.</span>
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