Added HTML documentation for the new "units" command.
This commit is contained in:
R. Timothy Edwards
parent
81436b75ed
commit
bd13febb72
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@ -334,23 +334,23 @@
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</TR>
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<TR>
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<TD> <A HREF=undo.html> <B>undo</B></A> </TD>
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<TD> <A HREF=units.html> <B>units</B></A> </TD>
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<TD> <A HREF=updatedisplay.html> <B>updatedisplay</B></A> </TD>
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<TD> <A HREF=version.html> <B>version</B></A> </TD>
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</TR>
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<TR>
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<TD> <A HREF=version.html> <B>version</B></A> </TD>
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<TD> <A HREF=view.html> <B>view</B></A> </TD>
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<TD> <A HREF=windowborder.html> <B>windowborder</B></A> </TD>
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<TD> <A HREF=windowcaption.html> <B>windowcaption</B></A> </TD>
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</TR>
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<TR>
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<TD> <A HREF=windowcaption.html> <B>windowcaption</B></A> </TD>
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<TD> <A HREF=windownames.html> <B>windownames</B></A> </TD>
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<TD> <A HREF=windowscrollbars.html> <B>windowscrollbars</B></A> </TD>
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<TD> <A HREF=xview.html> <B>xview</B></A> </TD>
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</TR>
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<TR>
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<TD> <A HREF=xview.html> <B>xview</B></A> </TD>
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<TD> <A HREF=zoom.html> <B>zoom</B></A> </TD>
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<TD> <A HREF=tk_path_name.html> <I>tk_path_name</I></A> </TD>
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<TD> </TD>
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</TR>
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</TBODY>
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</TABLE>
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@ -117,6 +117,7 @@ techmanager
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tool
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undo
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unexpand
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units
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updatedisplay
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upsidedown
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version
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@ -0,0 +1,102 @@
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<HTML>
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<HEAD>
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<STYLE type="text/css">
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H1 {color: black }
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H2 {color: maroon }
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H3 {color: #007090 }
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A.head:link {color: #0060a0 }
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A.head:visited {color: #3040c0 }
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A.head:active {color: white }
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A.head:hover {color: yellow }
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A.red:link {color: red }
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A.red:visited {color: maroon }
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A.red:active {color: yellow }
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</STYLE>
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</HEAD>
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<TITLE>Magic-8.3 Command Reference</TITLE>
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<BODY BACKGROUND=graphics/blpaper.gif>
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<H1> <IMG SRC=graphics/magic_title8_3.png ALT="Magic VLSI Layout Tool Version 8.3">
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<IMG SRC=graphics/magic_OGL_sm.gif ALIGN="top" ALT="*"> </H1>
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<H2>units</H2>
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<HR>
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Cause distance measurements to be interpreted by default (with no
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suffix provied) as measurments of the selected units, and also cause
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distance measurements to be printed in the selected units.
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<HR>
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<H3>Usage:</H3>
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<BLOCKQUOTE>
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<B>units</B> [<B>internal</B>|<B>lambda</B>|<B>user</B>|<B>grid</B>|<B>microns</B>|<B>default</B>] [<B>print</B>|</B>noprint</B>] <BR>
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or <BR>
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<B>units</B> [<B>list</B>] <BR><BR>
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</BLOCKQUOTE>
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<H3>Summary:</H3>
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<BLOCKQUOTE>
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The <B>units</B> command causes printed measurements to be
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given in the selected units. The possible unit types are
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<B>internal</B>, the size of the internal database units,
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<B>lambda</B>, the lambda grid based on the technology minimum
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feature size, <B>user</B> (or <B>grid</B>), based on the
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value given by the user to the <B>grid</B> command, or
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<B>microns</B>, which are physical units dependent on the
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CIF or GDS output scaling as defined in the technology file. <P>
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The <B>units</B> command also changes the way
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that <A HREF=distance.html>distance measurements</A> are
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interpreted in commands that take distance arguments, such
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as <B>move</B>, <B>copy</B>, and <B>stretch</B>. An integer
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number with no other identifying units is interpreted as a
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measurement in the current units type. All other measurements
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must have an identifying unit: <B>i</B> for internal units,
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<B>l</B> for lambda units, and <B>g</B> for user grid units,
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as well as the usual metric units such as <B>um</B> for
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microns, <B>nm</B> for nanometers, and so forth. See the
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reference page on <A HREF=distance.html>distance measures</A>
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for a complete description of distance values. <P>
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For printed units, the additional argument <B>print</B>
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causes the units to be printed along with the value; e.g.,
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"<B>1.0um</B>." This is the usual setting for interactive
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use. The argument <B>noprint</B> suppresses the unit name,
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which is appropriate for scripted use, when the value may
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be passed to arithmetic expressions to be evaluated by the
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interpreter. <P>
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<B>units</B> with no arguments returns the current units type.
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<B>units list</B> returns the current units type as a Tcl list
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of two items; the first item is the units type, and the second
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item is <B>print</B> or <B>noprint</B>, indicating whether units
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suffixes are printed with the values. <P>
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Historically, values parsed from the command line were interpreted
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according to the <B>snap</B> setting. On startup, this behavior
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remains in effect for backwards compatibility until overridden
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with a <B>units</B> command. The command <B>units default</B>
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reverts back to the original behavior. Once the <B>units</B>
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default type is overridden, the <B>snap</B> behavior is controlled
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independently of <B>units</B>. <P>
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</BLOCKQUOTE>
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<H3>Implementation Notes:</H3>
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<BLOCKQUOTE>
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<B>units</B> is implemented as a built-in command in <B>magic</B>.
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</BLOCKQUOTE>
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<H3>See Also:</H3>
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<BLOCKQUOTE>
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<A HREF=grid.html><B>grid</B></A> <BR>
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<A HREF=snap.html><B>snap</B></A> <BR>
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</BLOCKQUOTE>
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<P><IMG SRC=graphics/line1.gif><P>
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<TABLE BORDER=0>
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<TR>
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<TD> <A HREF=commands.html>Return to command index</A>
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</TR>
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</TABLE>
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<P><I>Last updated:</I> March 7, 2020 at 1:06pm <P>
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</BODY>
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</HTML>
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