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Discovered that the non-Euclidean distance checks had not been

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completely implemented for the "cifwidth" and "cifspacing" rules,
resulting in those rules being Manhattan distance checks.  Finished
the implementation (duplicating code from DRCbasic.c, with
appropriate scaling to CIF coordinates).
This commit is contained in:
Tim Edwards
2024-04-06 16:36:31 -04:00
parent 8b3524575f
commit 71f4dd2f9f
3 changed files with 102 additions and 18 deletions
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drc/DRCbasic.c
+6 -6
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@@ -61,7 +61,7 @@ extern MaxRectsData *drcCanonicalMaxwidth();
/*
*-----------------------------------------------------------------------
*
* point_to_segment
* drcCifPointToSegment
*
* Euclidean-distance point-to-segment distance (squared)
* calculation (borrowed from XCircuit)
@@ -77,7 +77,7 @@ extern MaxRectsData *drcCanonicalMaxwidth();
*/
long
point_to_segment(px, py, s1x, s1y, s2x, s2y)
drcCifPointToSegment(px, py, s1x, s1y, s2x, s2y)
int px, py; /* The position of the point */
int s1x, s1y; /* One endpoint of the line segment */
int s2x, s2y; /* The other endpoint of the line segment */
@@ -187,7 +187,7 @@ areaCheck(tile, arg)
return 0;
else if (IsSplit(tile) && !SplitDirection(tile) && !SplitSide(tile))
{
sstest = point_to_segment(arg->dCD_constraint->r_xbot + sdist,
sstest = drcCifPointToSegment(arg->dCD_constraint->r_xbot + sdist,
arg->dCD_constraint->r_ytop - sdist,
LEFT(tile), BOTTOM(tile), RIGHT(tile), TOP(tile));
if (sstest > ssdist) return 0;
@@ -202,7 +202,7 @@ areaCheck(tile, arg)
return 0;
else if (IsSplit(tile) && SplitDirection(tile) && SplitSide(tile))
{
sstest = point_to_segment(arg->dCD_constraint->r_xtop - sdist,
sstest = drcCifPointToSegment(arg->dCD_constraint->r_xtop - sdist,
arg->dCD_constraint->r_ytop - sdist,
LEFT(tile), TOP(tile), RIGHT(tile), BOTTOM(tile));
if (sstest > ssdist) return 0;
@@ -218,7 +218,7 @@ areaCheck(tile, arg)
return 0;
else if (IsSplit(tile) && SplitDirection(tile) && !SplitSide(tile))
{
sstest = point_to_segment(arg->dCD_constraint->r_xbot + sdist,
sstest = drcCifPointToSegment(arg->dCD_constraint->r_xbot + sdist,
arg->dCD_constraint->r_ybot + sdist,
LEFT(tile), TOP(tile), RIGHT(tile), BOTTOM(tile));
if (sstest > ssdist) return 0;
@@ -234,7 +234,7 @@ areaCheck(tile, arg)
return 0;
else if (IsSplit(tile) && !SplitDirection(tile) && SplitSide(tile))
{
sstest = point_to_segment(arg->dCD_constraint->r_xtop - sdist,
sstest = drcCifPointToSegment(arg->dCD_constraint->r_xtop - sdist,
arg->dCD_constraint->r_ybot + sdist,
LEFT(tile), BOTTOM(tile), RIGHT(tile), TOP(tile));
if (sstest > ssdist) return 0;