master
John Lauer Preserve BQ independent routing, narration and native copper-retention evidence a4b7711 1mo ago
{
  "source": "/home/adom/project/fusion-trace-routing/demo/routing/bq25792/ablation/take-02/bq25792-ablation-routed.brd",
  "units": "mm",
  "layers": [
    {
      "layer": 1,
      "boardAreaMm2": 1330.56,
      "areaExcludingDrillsMm2": 1295.9216655996756,
      "traceOnlyCopperMm2": 310.51518952493774,
      "retainedCopperMm2": 1009.5774544740317,
      "coveragePercent": 75.87613143894538,
      "traceOnlyCoveragePercent": 23.33718054991415,
      "projectedAreaToRemoveMm2": 286.34421112564394,
      "areaRemovalReductionPercent": 70.94151316457086,
      "filledRegions": 48,
      "floatingRegions": 42,
      "floatingCopperMm2": 51.24627330008792
    },
    {
      "layer": 2,
      "boardAreaMm2": 1330.56,
      "areaExcludingDrillsMm2": 1295.9216655996756,
      "traceOnlyCopperMm2": 92.95956969972647,
      "retainedCopperMm2": 1189.9017974397643,
      "coveragePercent": 89.42864639247868,
      "traceOnlyCoveragePercent": 6.986499646744715,
      "projectedAreaToRemoveMm2": 106.01986815991131,
      "areaRemovalReductionPercent": 91.18676569101734,
      "filledRegions": 3,
      "floatingRegions": 2,
      "floatingCopperMm2": 0.42000152659179857
    },
    {
      "layer": 15,
      "boardAreaMm2": 1330.56,
      "areaExcludingDrillsMm2": 1295.9216655996756,
      "traceOnlyCopperMm2": 110.75532253730256,
      "retainedCopperMm2": 1113.1011326327987,
      "coveragePercent": 83.65659065602443,
      "traceOnlyCoveragePercent": 8.32396303340718,
      "projectedAreaToRemoveMm2": 182.82053296687695,
      "areaRemovalReductionPercent": 84.57427229206631,
      "filledRegions": 13,
      "floatingRegions": 10,
      "floatingCopperMm2": 5.661239016782213
    },
    {
      "layer": 16,
      "boardAreaMm2": 1330.56,
      "areaExcludingDrillsMm2": 1295.9216655996756,
      "traceOnlyCopperMm2": 132.3427244188157,
      "retainedCopperMm2": 1093.0990219391751,
      "coveragePercent": 82.15330552092166,
      "traceOnlyCoveragePercent": 9.946392828494446,
      "projectedAreaToRemoveMm2": 202.8226436605005,
      "areaRemovalReductionPercent": 82.56906888890018,
      "filledRegions": 18,
      "floatingRegions": 15,
      "floatingCopperMm2": 34.63341316238281
    }
  ],
  "combinedCoveragePercent": 82.77866850209253,
  "combinedRemovalReductionPercent": 82.85237530800099,
  "method": "Union of native fill contours and modeled fixed pads, custom pad copper, traces and vias; subtract drill voids. Circular geometry approximated with 96-sided polygons. Coverage denominator is full board area; removal-area comparison excludes drill voids. Area, not machining time. Orphans classified by contact with same-net fixed copper on that layer."
}