seveibar/am3352-dev-board-4layer-dogbone

scripts/patch-via-connectivity.mjs

/** Teach the pinned physical connectivity map to join traces through real vias. */
import fs from 'node:fs'
const marker='viaPhysicalContactConnections'
const needle='    return new ConnectivityMap(findConnectedNetworks(connections));'
const addition=`    // viaPhysicalContactConnections: a plated barrel joins copper on its spanned layers.
    const physicalVias = this.circuitJson.filter(e=>e.type==='pcb_via');
    const distanceToSegment = (v,a,b) => {
      const dx=b.x-a.x,dy=b.y-a.y,den=dx*dx+dy*dy;
      const t=den ? Math.max(0,Math.min(1,((v.x-a.x)*dx+(v.y-a.y)*dy)/den)) : 0;
      return Math.hypot(v.x-a.x-t*dx,v.y-a.y-t*dy);
    };
    for(const via of physicalVias) {
      const hits=[];
      for(const trace of this.traceIdToElm.values()) {
        if(trace.pcb_trace_id===via.pcb_trace_id){hits.push(trace.pcb_trace_id);continue;}
        for(let k=0;k<trace.route.length;k++) {
          const a=trace.route[k],b=trace.route[k+1];
          if(a.route_type!=='wire'||!(via.layers||[via.from_layer,via.to_layer]).includes(a.layer))continue;
          const q=b?.route_type==='wire'&&b.layer===a.layer?b:a;
          if(distanceToSegment(via,a,q)<=via.outer_diameter/2+(a.width||0)/2+1e-6){hits.push(trace.pcb_trace_id);break;}
        }
      }
      for(const id of hits.slice(1))connections.push([hits[0],id]);
    }
`;
let count=0;
for(const file of ['node_modules/circuit-json-to-connectivity-map/dist/index.js','node_modules/@tscircuit/cli/dist/cli/main.js','node_modules/@tscircuit/cli/dist/lib/index.js']) {
 if(!fs.existsSync(file))continue;
 let s=fs.readFileSync(file,'utf8');if(s.includes(marker))continue;
 const method=s.indexOf('  _buildTraceConnectivityMap() {');if(method<0)continue;
 const at=s.indexOf(needle,method);if(at<0)throw Error('Unrecognized connectivity map in '+file);
 s=s.slice(0,at)+addition+s.slice(at);fs.writeFileSync(file,s);count++;
}
if(!fs.readFileSync('node_modules/circuit-json-to-connectivity-map/dist/index.js','utf8').includes(marker))throw Error('Via connectivity patch was not installed');
console.log('Physical via contact connectivity installed:',count,'files patched');