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Extended the "spacing" and "edge"/"edge4way" rules to take an

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option "manhattan_dist" that causes corner checks to assume a
manhattan distance measure.  This is useful for checking
distances involving generated edges that are created by a CIF
"grow" operator.  For "spacing", "manhattan_dist" is equivalent
to "touching_illegal", as a use-case for forcing manhattan
distance measurements in corners has not been found for other
"spacing" options.
This commit is contained in:
R. Timothy Edwards
2025-08-13 11:34:29 -04:00
parent 5791ae3701
commit 0fb19e568c
4 changed files with 61 additions and 28 deletions
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drc/DRCbasic.c
+10 -8
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@@ -823,7 +823,7 @@ drcTile (tile, arg)
if (TTMaskHasType(&cptr->drcc_corner, TiGetTopType(tpr)))
{
errRect.r_ybot -= cdist;
if (DRCEuclidean)
if (DRCEuclidean && !(cptr->drcc_flags & DRC_MANHATTAN))
arg->dCD_radial |= RADIAL_SW;
}
}
@@ -851,7 +851,8 @@ drcTile (tile, arg)
TiGetBottomType(tpr)))
{
errRect.r_ytop += cdist;
if (DRCEuclidean)
if (DRCEuclidean &&
!(cptr->drcc_flags & DRC_MANHATTAN))
arg->dCD_radial |= RADIAL_NW;
}
}
@@ -897,7 +898,7 @@ drcTile (tile, arg)
if (TTMaskHasType(&cptr->drcc_corner, TiGetBottomType(tpl)))
{
errRect.r_ytop += cdist;
if (DRCEuclidean)
if (DRCEuclidean && !(cptr->drcc_flags & DRC_MANHATTAN))
arg->dCD_radial |= RADIAL_NE;
}
}
@@ -924,7 +925,8 @@ drcTile (tile, arg)
if (TTMaskHasType(&cptr->drcc_corner, TiGetTopType(tpl)))
{
errRect.r_ybot -= cdist;
if (DRCEuclidean)
if (DRCEuclidean &&
!(cptr->drcc_flags & DRC_MANHATTAN))
arg->dCD_radial |= RADIAL_SE;
}
}
@@ -1196,7 +1198,7 @@ drcTile (tile, arg)
if (TTMaskHasType(&cptr->drcc_corner, TiGetBottomType(tpx)))
{
errRect.r_xtop += cdist;
if (DRCEuclidean)
if (DRCEuclidean && !(cptr->drcc_flags & DRC_MANHATTAN))
arg->dCD_radial |= RADIAL_SE;
}
@@ -1213,7 +1215,7 @@ drcTile (tile, arg)
if (TTMaskHasType(&cptr->drcc_corner, TiGetBottomType(tpx)))
{
errRect.r_xbot -= cdist;
if (DRCEuclidean)
if (DRCEuclidean && !(cptr->drcc_flags & DRC_MANHATTAN))
arg->dCD_radial |= RADIAL_SW;
}
}
@@ -1250,7 +1252,7 @@ drcTile (tile, arg)
if (TTMaskHasType(&cptr->drcc_corner, TiGetTopType(tpx)))
{
errRect.r_xbot -= cdist;
if (DRCEuclidean)
if (DRCEuclidean && !(cptr->drcc_flags & DRC_MANHATTAN))
arg->dCD_radial |= RADIAL_NW;
}
@@ -1266,7 +1268,7 @@ drcTile (tile, arg)
if (TTMaskHasType(&cptr->drcc_corner, TiGetTopType(tpx)))
{
errRect.r_xtop += cdist;
if (DRCEuclidean)
if (DRCEuclidean && !(cptr->drcc_flags & DRC_MANHATTAN))
arg->dCD_radial |= RADIAL_NE;
}
}