97 lines
3.2 KiB
HTML
97 lines
3.2 KiB
HTML
<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>erase</H2>
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<HR>
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Erase paint from the layout inside the bounds of the cursor box.
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<HR>
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<H3>Shortcuts:</H3>
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<BLOCKQUOTE>
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Key macro <B>Control-D</B> implements the command "<B>erase $</B>",
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which indicates to erase all paint and labels in the cursor box. <BR>
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Key <B>e</B> typed while the cursor is in a layer box in the GUI toolbar
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implements the command "<B>erase</B> <I>layer</I>", passing the layer
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type in the toolbar. <BR>
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Key Shift plus Mouse button 2 implements the command
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<B>erase cursor</B> when using the "box tool" in a layout
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window. <BR>
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</BLOCKQUOTE>
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<H3>Usage:</H3>
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<BLOCKQUOTE>
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<B>erase</B> [<I>layers</I>|<B>cursor</B>|<B>pick</B> <I>x y</I>] <BR><BR>
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<BLOCKQUOTE>
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where <I>layers</I> is a comma-separated list of layer types
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to be erased, or <B>*</B> to indicate all paint but not labels,
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or <B>$</B> to indicate both paint and labels; and where <I>x</I>
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and <I>y</I> are values in the layout coordinate system.
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</BLOCKQUOTE>
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</BLOCKQUOTE>
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<H3>Summary:</H3>
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<BLOCKQUOTE>
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The <B>erase</B> command erases paint inside the cursor box in the
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current edit cell. Without arguments, everything inside the box
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is erased. With argument <I>layers</I>, only the indicated layers
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are erased. <P>
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Note that some layer types, such as DRC paint, cannot be erased.
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Feedback areas are not considered paint and should be erased
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using the <B>feedback clear</B> command. <P>
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The option "<B>erase cursor</B>" picks the layers at the position
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of the (X11) cursor and erases these from the area of the cursor
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box. <P>
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The option "<B>erase pick</B> <I>x y</I>" works like "<B>erase
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cursor</B>", but the type of material to erase is selected from
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the given position in layout coordinates instead of a pointer
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position. <P>
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Note that when applied to contact types, "<B>erase</B>" will erase
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the entire contact, including the top and bottom metal types
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comprising the contact. To remove the contact cuts without affecting
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the surrounding material, use the "<B>contact erase</B>" command. <P>
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</BLOCKQUOTE>
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<H3>Implementation Notes:</H3>
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<BLOCKQUOTE>
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<B>erase</B> is implemented as a built-in <B>magic</B> command.
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</BLOCKQUOTE>
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<H3>See Also:</H3>
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<BLOCKQUOTE>
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<A HREF=paint.html><B>paint</B></A> <BR>
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<A HREF=contact.html><B>contact</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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