the fair gds editor ExternalDrc
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Import External DRC Results

Beside the integrated DesignRuleChecker the LayoutEditor can load and display result of an external design rule check. To load the results into the LayoutEditor a small macro is required which will do the format convertion. Attached if such a convertion macro for a common drc result format. In line 7 the result file name is defined and in line 8 the layer for the graphical display is set. Next to the graphical display the results are listed in the DRC violation list which is also used by the internal DesignRuleChecker.

Download:

DRC example data (drc.db):

 topcell 1000  //topcell
metal_1_spacing  //rulename1
3 5 2 Jan 7 10:29:32 2009  //results results infolines
Rule File Pathname: /user/myhome/drc/rules  //infoline_1
Metal spacing check for matal 1 GDS layer 56  //infoline_2
e 5 1   //line # Number_of_violations
0 50000 0 20000
p 22 13  //polygon # Number_of_violations
48000 50000
40000 50000
36000 44000
36000 28000
40000 20000
48000 20000
48000 22000
42000 22000
38000 30000
38000 42000
42000 48000
48000 48000
48000 50000
e 29 3
5000 50000 10000 45000
10000 40000 10000 30000
10000 25000 5000 20000
metal_2_width //rulename2
2 4 1 Jan 7 10:30:36 2009
Rule File Pathname: /user/myhome/drc/rules
e 29 1
20000 20000 20000 50000
e 32 3
25000 35000 30000 20000
30000 45000 30000 40000
25000 50000 30000 50000

DRC Import Macro:

   1 #!/usr/bin/layout
   2 #name=read an external drc file
   3 #help=import drc error from an external ascii file
   4 
   5 int main(){
   6   file f;
   7   f.filename="drc.db";
   8   int errorLayer=0;
   9   bool b=true;
  10   f.open(b);
  11   string s=f.read();
  12   f.close();
  13   stringList sl=s.split("\n"); 
  14   if (sl.size()==0) return 0; //no data
  15   stringList sl2=sl.at(0).split(" ");
  16   if (sl2.size()==0) layout->drawing->setCell(sl.at(0));
  17   else layout->drawing->setCell(sl2.at(0));
  18   layout->drcTool->clearViolationView();
  19   int i;
  20   string rule;
  21   point p1,p2,p;
  22   pointArray pa;
  23   int nextRules=0;
  24   int nextData=0;
  25   int dataType=0;
  26   for( i=1;i<sl.size();i++){
  27        sl2=sl.at(i).split(" ");
  28        if (nextData>0) {
  29            nextData--;
  30            if (dataType==0) {  // ignore  
  31            }
  32            else if (dataType==1) { //line
  33               if (sl2.size()>3){
  34               p1.setX(sl2.at(0).toInt());
  35               p1.setY(sl2.at(1).toInt());
  36               p2.setX(sl2.at(2).toInt());
  37               p2.setY(sl2.at(3).toInt());
  38               pa.resize(0);
  39               pa.attachPoint(p1);
  40               pa.attachPoint(p2);
  41               layout->drawing->currentCell->addPath(pa,errorLayer);
  42               layout->drcTool->addViolation(rule,0 ,p1, p2);
  43              }
  44            }
  45            else if (dataType==2) { //polygon
  46              if (sl2.size()>1){
  47              p.setX(sl2.at(0).toInt());
  48              p.setY(sl2.at(1).toInt());
  49              pa.attachPoint(p);
  50              if (pa.size()==1) {p1=p;p2=p;}
  51              if (p.x()<p1.x()) p1.setX(p.x());
  52              if (p.x()>p2.x()) p2.setX(p.x());
  53              if (p.y()<p1.y()) p1.setY(p.y());
  54              if (p.y()>p2.y()) p2.setY(p.y());
  55              }
  56              if (nextData==0) {
  57               layout->drawing->currentCell->addPolygon(pa,errorLayer);
  58               layout->drcTool->addViolation(rule,0 ,p1, p2);
  59               }
  60            }
  61        }
  62        else if (nextRules>0) {
  63           nextRules--;
  64           if (sl2.size()>2) {
  65             nextData=sl2.at(2).toInt();
  66             dataType=0;
  67             if (sl2.at(0)=="p") {  //polygon
  68                dataType=2;
  69                pa.resize(0);
  70                }
  71             else if (sl2.at(0)=="e") { // line
  72                dataType=1;
  73                }
  74             }
  75        }
  76        else { // new rule
  77          rule=sl.at(i);
  78          if (sl2.size()>1) rule=sl2.at(0);
  79          i++;
  80          if (i==sl.size()) break;
  81          sl2=sl.at(i).split(" ");
  82          if (sl2.size()>2) {
  83             nextRules=sl2.at(0).toInt();
  84             nextData=sl2.at(2).toInt();
  85             dataType=0;
  86             }
  87          }
  88     }
  89   layout->drawing->scaleFull();
  90 }

See also


CategoryMacro


ExternalDrc (last edited 2016-10-17 15:27:35 by JurgenThies)