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Enforce zero-intersection geometric routing #134

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Enforce zero-intersection geometric routing #134

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caed5d9
Reject crossings in greedy final routes
seveibar Jul 27, 2026
ab2500e
Add strict geometric intersection routing
seveibar Jul 28, 2026
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6 changes: 6 additions & 0 deletions lib/bus-solver/TinyHyperGraphBusSolver.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1459,6 +1459,12 @@ export class TinyHyperGraphBusSolver extends TinyHyperGraphSolver {
regionCache.lesserAngles = EMPTY_PREVIEW_INT32_ARRAY
regionCache.greaterAngles = EMPTY_PREVIEW_INT32_ARRAY
regionCache.layerMasks = EMPTY_PREVIEW_INT32_ARRAY
regionCache.port1Ids = EMPTY_PREVIEW_INT32_ARRAY
regionCache.port2Ids = EMPTY_PREVIEW_INT32_ARRAY
regionCache.x1 = new Float64Array(0)
regionCache.y1 = new Float64Array(0)
regionCache.x2 = new Float64Array(0)
regionCache.y2 = new Float64Array(0)
regionCache.existingCrossingLayerIntersections = 0
regionCache.existingSameLayerIntersections = 0
regionCache.existingEntryExitLayerChanges = 0
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12 changes: 12 additions & 0 deletions lib/bus-solver/previewRoutingState.ts
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Expand Up @@ -58,6 +58,12 @@ export const snapshotPreviewRoutingState = (
lesserAngles: new Int32Array(cache.lesserAngles),
greaterAngles: new Int32Array(cache.greaterAngles),
layerMasks: new Int32Array(cache.layerMasks),
port1Ids: new Int32Array(cache.port1Ids ?? new Int32Array(0)),
port2Ids: new Int32Array(cache.port2Ids ?? new Int32Array(0)),
x1: new Float64Array(cache.x1 ?? new Float64Array(0)),
y1: new Float64Array(cache.y1 ?? new Float64Array(0)),
x2: new Float64Array(cache.x2 ?? new Float64Array(0)),
y2: new Float64Array(cache.y2 ?? new Float64Array(0)),
existingCrossingLayerIntersections:
cache.existingCrossingLayerIntersections,
existingSameLayerIntersections: cache.existingSameLayerIntersections,
Expand All @@ -81,6 +87,12 @@ export const restorePreviewRoutingState = (
lesserAngles: new Int32Array(cache.lesserAngles),
greaterAngles: new Int32Array(cache.greaterAngles),
layerMasks: new Int32Array(cache.layerMasks),
port1Ids: new Int32Array(cache.port1Ids ?? new Int32Array(0)),
port2Ids: new Int32Array(cache.port2Ids ?? new Int32Array(0)),
x1: new Float64Array(cache.x1 ?? new Float64Array(0)),
y1: new Float64Array(cache.y1 ?? new Float64Array(0)),
x2: new Float64Array(cache.x2 ?? new Float64Array(0)),
y2: new Float64Array(cache.y2 ?? new Float64Array(0)),
existingCrossingLayerIntersections:
cache.existingCrossingLayerIntersections,
existingSameLayerIntersections: cache.existingSameLayerIntersections,
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