magic/doc/html/scalegrid.html

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<TITLE>Magic-7.3 Command Reference</TITLE>
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<H2>scalegrid</H2>
<HR>
Set the ratio of magic internal units to lambda units
<HR>
<H3>Usage:</H3>
<BLOCKQUOTE>
<B>scalegrid</B> <I>a b</I> <BR><BR>
<BLOCKQUOTE>
where <I>a</I> and <I>b</I> are integers.
</BLOCKQUOTE>
</BLOCKQUOTE>
<H3>Summary:</H3>
<BLOCKQUOTE>
The <B>scalegrid</B> command sets the ratio of magic internal
units to lambda units by rescaling the internal database and
appropriate technology parameters. The values <I>a</I> and
<I>b</I> are interpreted to mean that all positions in the
database should be multiplied by the factor <I>b</I> / <I>a</I>.
An equivalent meaning is that there should be <I>b</I> internal
units per <I>a</I> lambda units in the database. For example,
<BLOCKQUOTE>
<B>scalegrid 1 2</B>
</BLOCKQUOTE>
means 2 internal units per lambda, or an internal grid that is
twice as finely spaced as the default. The grid scaling can
be queried using the <B>tech lambda</B> command. Grid scaling
is interpreted relative to the current scale, so
<BLOCKQUOTE>
<B>scalegrid 1 2</B> <BR>
<B>scalegrid 1 2</B>
</BLOCKQUOTE>
results in 4 internal units per lambda.
</BLOCKQUOTE>
<H3>Implementation Notes:</H3>
<BLOCKQUOTE>
<B>scalegrid</B> is implemented as a built-in command in <B>magic</B>.
</BLOCKQUOTE>
<H3>See Also:</H3>
<BLOCKQUOTE>
<A HREF=snap.html><B>snap</B></A> <BR>
<A HREF=tech.html><B>tech</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 2:14am <P>
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