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Re: gEDA-user: Color silk layers in pcb
On 9/3/10, Stefan Salewski <mail@xxxxxxxxxxxx> wrote:
> On Fri, 2010-09-03 at 11:53 +0200, Pawel Kusmierski wrote:
>> Can I get pcb to either treat a layer other than the default silk as
>> non-metal
>> (so it would not short pads and mess up nets),
> No, currently we have only one silk layer. You may "miss-use" other
> copper layers for that task -- it may work when that layer is not in
> your real copper layer groups, but unfortunately it still connects to
> vias and can generate shorts.
Probably this patch may be used as a workaround.
Put your non-copper layer into a distinct layer group
(File->Preferences->Layers, Groups Tab), add to the layer an attribute
named "PCB::skip-drc" (Edit->Edit attributes of->Current Layer),
and PCB should skip the layer during DRC and connections lookup.
Kind regards
From 1bec53aea09312b99ee14c40fe7efcaa80158467 Mon Sep 17 00:00:00 2001
From: Ineiev <ineiev@xxxxxxxxxxxxxxxx>
Date: Sat, 4 Sep 2010 14:12:46 +0400
Subject: [PATCH] recognize PCB::skip-drc layer attribute
layers with `PCB::skip-drc' attribute are excluded
from DRC and connection lookup
---
src/action.c | 2 +-
src/action.h | 2 ++
src/find.c | 23 +++++++++++++++++++++--
src/global.h | 1 +
4 files changed, 25 insertions(+), 3 deletions(-)
diff --git a/src/action.c b/src/action.c
index 32e294c..2936080 100644
--- a/src/action.c
+++ b/src/action.c
@@ -6957,7 +6957,7 @@ find_element_by_refdes (char *refdes)
return NULL;
}
-static AttributeType *
+AttributeType *
lookup_attr (AttributeListTypePtr list, const char *name)
{
int i;
diff --git a/src/action.h b/src/action.h
index ee116e8..7b64e05 100644
--- a/src/action.h
+++ b/src/action.h
@@ -46,4 +46,6 @@ void warpNoWhere (void);
/* In gui-misc.c */
bool ActionGetLocation (char *);
void ActionGetXY (char *);
+AttributeType * lookup_attr (AttributeListTypePtr list, const char *name);
+
#endif
diff --git a/src/find.c b/src/find.c
index 593be70..ac94f4b 100644
--- a/src/find.c
+++ b/src/find.c
@@ -81,6 +81,7 @@
#include "global.h"
+#include "action.h"
#include "crosshair.h"
#include "data.h"
#include "draw.h"
@@ -826,6 +827,8 @@ LookupLOConnectionsToPVList (bool AndRats)
/* now all lines, arcs and polygons of the several layers */
for (layer = 0; layer < max_layer; layer++)
{
+ if (LAYER_PTR (layer)->no_drc)
+ continue;
info.layer = layer;
/* add touching lines */
if (setjmp (info.env) == 0)
@@ -1173,6 +1176,8 @@ LookupPVConnectionsToLOList (bool AndRats)
/* loop over all layers */
for (layer = 0; layer < max_layer; layer++)
{
+ if (LAYER_PTR (layer)->no_drc)
+ continue;
/* do nothing if there are no PV's */
if (TotalP + TotalV == 0)
{
@@ -2900,6 +2905,18 @@ ListsEmpty (bool AndRats)
return (empty);
}
+static void
+reassign_no_drc_flags (void)
+{
+ int layer;
+
+ for (layer = 0; layer < max_layer; layer++)
+ {
+ LayerTypePtr l = LAYER_PTR (layer);
+ l->no_drc = lookup_attr (&(l->Attributes), "PCB::skip-drc") != NULL;
+ }
+}
+
/* ---------------------------------------------------------------------------
* loops till no more connections are found
*/
@@ -2907,6 +2924,7 @@ static bool
DoIt (bool AndRats, bool AndDraw)
{
bool new = false;
+ reassign_no_drc_flags ();
do
{
/* lookup connections; these are the steps (2) to (4)
@@ -3349,6 +3367,7 @@ LookupConnection (LocationType X, LocationType Y, bool AndDraw,
/* check if there are any pins or pads at that position */
+ reassign_no_drc_flags ();
type
= SearchObjectByLocation (LOOKUP_FIRST, &ptr1, &ptr2, &ptr3, X, Y, Range);
@@ -3365,8 +3384,8 @@ LookupConnection (LocationType X, LocationType Y, bool AndDraw,
int laynum = GetLayerNumber (PCB->Data,
(LayerTypePtr) ptr1);
- /* don't mess with silk objects! */
- if (laynum >= max_layer)
+ /* don't mess with non-conducting objects! */
+ if (laynum >= max_layer || ((LayerTypePtr)ptr1)->no_drc)
return;
}
}
diff --git a/src/global.h b/src/global.h
index bb78abc..1c7ca26 100644
--- a/src/global.h
+++ b/src/global.h
@@ -301,6 +301,7 @@ typedef struct /* holds information about one layer */
char *Color, /* color */
*SelectedColor;
AttributeListType Attributes;
+ int no_drc; /* whether to ignore the layer when checking the design rules */
}
LayerType, *LayerTypePtr;
--
1.6.0.2
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