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<TITLE>Magic-7.3 Command Reference</TITLE>
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<H1> <IMG SRC=graphics/magic_title2.gif ALT="Magic VLSI Layout Tool Version 7.3">
<IMG SRC=graphics/magic_OGL_sm.gif ALIGN="top" ALT="*"> </H1>
<H2>spliterase</H2>
<HR>
Paint into the cursor box, splitting the box diagonally with one layer
forming a right triangle in one corner and space or another layer in
the other.
<HR>
<H3>Usage:</H3>
<BLOCKQUOTE>
<B>spliterase</B> <I>dir layer</I> <BR><BR>
<BLOCKQUOTE>
where <I>dir</I> is a valid non-Manhattan direction indicating
the direction of the right angle corner of the right triangle
to be erased. Any paint of layer type <I>layer</I> is erased
from this triangular area.
</BLOCKQUOTE>
</BLOCKQUOTE>
<H3>Summary:</H3>
<BLOCKQUOTE>
The <B>spliterase</B> command implements a form of non-Manhattan
geometry that conforms to the corner-stitched tile database
format used by <B>magic</B> for painting and searching operations
in a plane. It lets a rectangular area, as defined by the
position of the cursor box, be split diagonally, with one half
containing one layer type, and the other half containing
another. While the <B>splitpaint</B> command generates
non-Manhattan areas by adding paint in a triangular area,
<B>spliterase</B> creates non-Manhattan areas by subtracting
paint from a triangular area. <P>
Note that <B>spliterase</B>, like <B>splitpaint</B>, is somewhat
cumbersome to use; to generate diagonal wires, use the <B>wire
segment</B> command instead, which is also able to compute mitred
joints between segments at different angles. <P>
</BLOCKQUOTE>
<H3>Implementation Notes:</H3>
<BLOCKQUOTE>
<B>spliterase</B> is implemented as a built-in command in <B>magic</B>.
</BLOCKQUOTE>
<H3>See Also:</H3>
<BLOCKQUOTE>
<A HREF=splitpaint.html><B>splitpaint</B></A> <BR>
<A HREF=wire.html><B>wire</B></A> <BR>
</BLOCKQUOTE>
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<TD> <A HREF=commands.html>Return to command index</A>
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<P><I>Last updated:</I> October 8, 2004 at 7:41am <P>
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