create obstacles over rotated rect

module/lib/solver-utils/generateApproximatingRects.ts

@@ -0,0 +1,86 @@
+interface Point {
+  x: number
+  y: number
+}
+
+export interface RotatedRect {
+  center: Point
+  width: number
+  height: number
+  rotation: number
+}
+
+interface Rect {
+  center: Point
+  width: number
+  height: number
+}
+
+export function generateApproximatingRects(
+  rotatedRect: RotatedRect,
+  numRects: number = 4,
+): Rect[] {
+  const { center, width, height, rotation } = rotatedRect
+  const rects: Rect[] = []
+
+  const angleRad = (rotation * Math.PI) / 180
+  const cosAngle = Math.cos(angleRad)
+  const sinAngle = Math.sin(angleRad)
+
+  const normalizedRotation = ((rotation % 360) + 360) % 360
+  const sliceAlongWidth =
+    height <= width
+      ? (normalizedRotation >= 45 && normalizedRotation < 135) ||
+        (normalizedRotation >= 225 && normalizedRotation < 315)
+      : (normalizedRotation >= 135 && normalizedRotation < 225) ||
+        normalizedRotation >= 315 ||
+        normalizedRotation < 45
+
+  if (sliceAlongWidth) {
+    const sliceWidth = width / numRects
+
+    for (let i = 0; i < numRects; i++) {
+      const x = (i - numRects / 2 + 0.5) * sliceWidth
+
+      const rotatedX = -x * cosAngle
+      const rotatedY = -x * sinAngle
+
+      const coverageWidth = sliceWidth * 1.1
+      const coverageHeight =
+        Math.abs(height * cosAngle) + Math.abs(sliceWidth * sinAngle)
+
+      rects.push({
+        center: {
+          x: center.x + rotatedX,
+          y: center.y + rotatedY,
+        },
+        width: coverageWidth,
+        height: coverageHeight,
+      })
+    }
+  } else {
+    const sliceHeight = height / numRects
+
+    for (let i = 0; i < numRects; i++) {
+      const y = (i - numRects / 2 + 0.5) * sliceHeight
+
+      const rotatedX = -y * sinAngle
+      const rotatedY = y * cosAngle
+
+      const coverageWidth =
+        Math.abs(width * cosAngle) + Math.abs(sliceHeight * sinAngle)
+      const coverageHeight = sliceHeight * 1.1
+
+      rects.push({
+        center: {
+          x: center.x + rotatedX,
+          y: center.y + rotatedY,
+        },
+        width: coverageWidth,
+        height: coverageHeight,
+      })
+    }
+  }
+
+  return rects
+}

module/lib/solver-utils/getObstaclesFromCircuitJson.ts

@@ -2,6 +2,11 @@ import type { Obstacle } from "../types"
 import { getObstaclesFromRoute } from "./getObstaclesFromRoute"
 import type { ConnectivityMap } from "circuit-json-to-connectivity-map"
 import type { AnyCircuitElement } from "circuit-json"
+import {
+  generateApproximatingRects,
+  type RotatedRect,
+} from "./generateApproximatingRects"
+import { su } from "@tscircuit/soup-util"
 
 const EVERY_LAYER = ["top", "inner1", "inner2", "bottom"]
 
@@ -16,6 +21,7 @@ export const getObstaclesFromCircuitJson = (
         )
       : idList
   const obstacles: Obstacle[] = []
+  const db = su(soup)
   for (const element of soup) {
     if (element.type === "pcb_smtpad") {
       if (element.shape === "circle") {
@@ -43,6 +49,37 @@ export const getObstaclesFromCircuitJson = (
           height: element.height,
           connectedTo: withNetId([element.pcb_smtpad_id]),
         })
+      } else if (element.shape === "rotated_rect") {
+        const rotatedRect: RotatedRect = {
+          center: { x: element.x, y: element.y },
+          width: element.width,
+          height: element.height,
+          rotation: element.ccw_rotation,
+        }
+        const approximatingRects = generateApproximatingRects(rotatedRect)
+        for (const rect of approximatingRects) {
+          db.pcb_smtpad.insert({
+            type: "pcb_smtpad",
+            shape: "rect",
+            layer: "bottom",
+            x: rect.center.x,
+            y: rect.center.y,
+            width: rect.width,
+            height: rect.height,
+          } as any)
+        }
+        console.log(element)
+        console.log(approximatingRects)
+        for (const rect of approximatingRects) {
+          obstacles.push({
+            type: "rect",
+            layers: [element.layer],
+            center: rect.center,
+            width: rect.width,
+            height: rect.height,
+            connectedTo: withNetId([element.pcb_smtpad_id]),
+          })
+        }
       }
     } else if (element.type === "pcb_keepout") {
       if (element.shape === "circle") {