0hmX/am3352

scripts/generate-fixed-cap-elbows.ts

/** Run check-capacitor-orientation.tsx first. Endpoint-based generation remains
 * idempotent after elbows have been rendered. This chooses the shortest
 * diagonal-first, axis-last route within the original endpoint rectangle.
 * Geometry validation must follow generation; this does not authorize a DRC
 * change when capacitor positions, pads or via locations change.
 */
import {readFileSync,writeFileSync}from'node:fs'
import assert from 'node:assert/strict'
const input=JSON.parse(readFileSync('dist/six-layer-placed.circuit.json','utf8'))
const names=new Map(input.filter((e:any)=>e.type==='source_trace').map((e:any)=>[e.source_trace_id,e.name]))
const result:Record<string,{x:number;y:number}>={},shortLegs:any[]=[]
for(const t of input.filter((e:any)=>e.type==='pcb_trace')){
 const name=String(names.get(t.source_trace_id));if(!/^C\d+_(POWER|GROUND)$/.test(name))continue
 const a=t.route[0],b=t.route.at(-1),dx=b.x-a.x,dy=b.y-a.y,m=Math.min(Math.abs(dx),Math.abs(dy))
 if(m<1e-7||Math.abs(Math.abs(dx)-Math.abs(dy))<1e-7)continue
 const elbow={x:Number((a.x+Math.sign(dx)*m).toFixed(12)),y:Number((a.y+Math.sign(dy)*m).toFixed(12))}
 result[name]=elbow
 const first=m*Math.SQRT2,last=Math.abs(Math.abs(dx)-Math.abs(dy));if(Math.min(first,last)<.127){
  let margin:number
  if(first<last){const pad=input.find((p:any)=>p.type==='pcb_smtpad'&&p.pcb_port_id===a.start_pcb_port_id);assert(pad&&pad.width&&pad.height,`Cannot verify endpoint pad for ${name}`);margin=Math.min(pad.width/2-Math.abs(elbow.x-a.x),pad.height/2-Math.abs(elbow.y-a.y))-.127/2}
  else {const via=input.find((v:any)=>v.type==='pcb_via'&&Math.hypot(v.x-b.x,v.y-b.y)<1e-7);assert(via,`Cannot verify endpoint via for ${name}`);margin=via.outer_diameter/2-Math.hypot(elbow.x-b.x,elbow.y-b.y)-.127/2}
  assert(margin>=-1e-9,`Exposed sub-width routing leg on ${name}`)
  shortLegs.push({name,firstLengthMm:first,lastLengthMm:last,endpointContainingShortLeg:first<last?'capacitor pad':'via annulus',coveredCopperMarginMm:margin})
 }
}
writeFileSync('src/generated/fixed-cap-elbows.json',JSON.stringify(result,null,2)+'\n')
writeFileSync('dist/fixed-elbow-generation-report.json',JSON.stringify({algorithm:'Endpoint-preserving diagonal-first axis-last; inverse component transform applied at runtime',count:Object.keys(result).length,traceWidthMm:.127,shortLegs,requiredFollowup:'Render and validate all profile fixed+saved copper; verify short endpoint legs remain fully covered by their pad/via copper.'},null,2)+'\n')
console.log(`Generated ${Object.keys(result).length} fixed capacitor elbows; ${shortLegs.length} short endpoint legs verified entirely covered by pad/via copper`)