0hmX/am3352

scripts/ddr-plane-contact-audit.ts

type Point={x:number;y:number}
function inside(p:Point,vertices:Point[]){let yes=false;for(let i=0,j=vertices.length-1;i<vertices.length;j=i++){const a=vertices[i]!,b=vertices[j]!;if((a.y>p.y)!==(b.y>p.y)&&p.x<(b.x-a.x)*(p.y-a.y)/(b.y-a.y)+a.x)yes=!yes}return yes}
/** Recheck existing, source-owned via contact witnesses after approved hole
 * subtraction. Full conductor clearance is a separate mandatory predicate. */
export function refreshDdrPlaneContacts(previous:any[],planes:any[],circuit:any[]){
 if(!Array.isArray(previous)||previous.length!==planes.length)throw Error('Missing prior plane contact audit')
 const vias=circuit.flatMap((e:any)=>e.type==='pcb_via'?[{x:e.x,y:e.y,r:e.outer_diameter/2}]:e.type==='pcb_trace'?e.route.filter((p:any)=>p.route_type==='via').map((p:any)=>({x:p.x,y:p.y,r:p.via_diameter/2})):[])
 return previous.map(audit=>{
  const plane=planes.find(p=>p.layer===audit.layer&&p.source_net_id===audit.source_net_id)
  if(!plane?.brep_shape)throw Error('Plane identity changed')
  const shape=plane.brep_shape,contacts=audit.viaContacts.map((v:any)=>{
   const matches=vias.filter(p=>Math.hypot(p.x-v.x,p.y-v.y)<1e-7)
   if(!matches.length)throw Error('Missing actual contact via')
   const radius=Math.max(...matches.map(p=>p.r))
   if(!Number.isFinite(radius)||radius<=0)throw Error('Invalid contact radius')
   const samples=Array.from({length:32},(_,i)=>({x:v.x+radius*.9*Math.cos(i*Math.PI/16),y:v.y+radius*.9*Math.sin(i*Math.PI/16)}))
   const n=samples.filter(p=>inside(p,shape.outer_ring.vertices)&&!shape.inner_rings.some((h:any)=>inside(p,h.vertices))).length
   return {...v,annulusSamplesInPlane:n,total:32}
  })
  const missing=contacts.filter((v:any)=>v.annulusSamplesInPlane!==32)
  if(missing.length)throw Error(`Plane change loses existing via contact on ${audit.layer}`)
  return {...audit,holes:shape.inner_rings.length,viaContacts:contacts,capViaContacts:contacts.filter((v:any)=>v.id.startsWith('power_plan_caps_')),missingFullAnnulusContacts:[],uniqueMissingFullAnnulusContacts:[],recheckedAfterSignalAntipads:true}
 })
}