feat: initial commit web-cad-neu with docker-compose, frontend and backend

2026-06-26 10:50:24 +02:00
commit 4ec76fe406
102 changed files with 25722 additions and 0 deletions
@@ -0,0 +1,214 @@
+/**
+ * DXF Writer – converts CADElement[] to DXF string
+ * Minimal DXF R12 format for compatibility
+ */
+import type { CADElement, CADLayer, ProjectData } from '../types/cad.types';
+
+/**
+ * Generate a DXF R12 string from project data.
+ */
+export function writeDXF(data: ProjectData): string {
+  const lines: string[] = [];
+  const w = (code: number, value: string | number) => {
+    lines.push(String(code));
+    lines.push(String(value));
+  };
+
+  // Header
+  w(0, 'SECTION');
+  w(2, 'HEADER');
+  w(9, '$ACADVER'); w(1, 'AC1009'); // R12
+  w(9, '$INSBASE'); w(10, 0); w(20, 0); w(30, 0);
+  w(9, '$EXTMIN'); w(10, 0); w(20, 0);
+  w(9, '$EXTMAX'); w(10, 1000); w(20, 1000);
+  w(0, 'ENDSEC');
+
+  // Tables section
+  w(0, 'SECTION');
+  w(2, 'TABLES');
+
+  // Layer table
+  w(0, 'TABLE');
+  w(2, 'LAYER');
+  w(70, data.layers.length);
+  for (const layer of data.layers) {
+    w(0, 'LAYER');
+    w(2, layer.name);
+    w(70, 0);
+    w(62, hexToACI(layer.color));
+    w(6, lineTypeToDXF(layer.lineType));
+  }
+  w(0, 'ENDTAB');
+  w(0, 'ENDSEC');
+
+  // Entities section
+  w(0, 'SECTION');
+  w(2, 'ENTITIES');
+
+  for (const el of data.elements) {
+    const layerName = getLayerName(data.layers, el.layerId);
+    writeEntity(w, el, layerName);
+  }
+
+  w(0, 'ENDSEC');
+
+  // EOF
+  w(0, 'EOF');
+
+  return lines.join('\n');
+}
+
+function writeEntity(
+  w: (code: number, value: string | number) => void,
+  el: CADElement,
+  layerName: string,
+): void {
+  const p = el.properties;
+  const stroke = (p.stroke as string) || '#ffffff';
+  const aci = hexToACI(stroke);
+
+  switch (el.type) {
+    case 'line': {
+      w(0, 'LINE');
+      w(8, layerName);
+      w(62, aci);
+      w(10, p.x1 ?? el.x); w(20, p.y1 ?? el.y); w(30, 0);
+      w(11, p.x2 ?? el.x + el.width); w(21, p.y2 ?? el.y + el.height); w(31, 0);
+      break;
+    }
+    case 'circle': {
+      const cx = el.x + el.width / 2;
+      const cy = el.y + el.height / 2;
+      const r = p.radius ?? el.width / 2;
+      w(0, 'CIRCLE');
+      w(8, layerName);
+      w(62, aci);
+      w(10, cx); w(20, cy); w(30, 0);
+      w(40, r);
+      break;
+    }
+    case 'arc': {
+      const cx = el.x + el.width / 2;
+      const cy = el.y + el.height / 2;
+      const r = p.radius ?? el.width / 2;
+      w(0, 'ARC');
+      w(8, layerName);
+      w(62, aci);
+      w(10, cx); w(20, cy); w(30, 0);
+      w(40, r);
+      w(50, radToDeg(p.startAngle ?? 0));
+      w(51, radToDeg(p.endAngle ?? 360));
+      break;
+    }
+    case 'rect': {
+      // Rectangle as LWPOLYLINE
+      w(0, 'LWPOLYLINE');
+      w(8, layerName);
+      w(62, aci);
+      w(90, 4);
+      w(70, 1); // closed
+      w(10, el.x); w(20, el.y);
+      w(10, el.x + el.width); w(20, el.y);
+      w(10, el.x + el.width); w(20, el.y + el.height);
+      w(10, el.x); w(20, el.y + el.height);
+      break;
+    }
+    case 'polygon':
+    case 'polyline': {
+      const pts = p.points ?? [];
+      w(0, 'LWPOLYLINE');
+      w(8, layerName);
+      w(62, aci);
+      w(90, pts.length);
+      w(70, el.type === 'polygon' ? 1 : 0);
+      for (const pt of pts) {
+        w(10, pt.x); w(20, pt.y);
+      }
+      break;
+    }
+    case 'text': {
+      w(0, 'TEXT');
+      w(8, layerName);
+      w(62, aci);
+      w(10, el.x); w(20, el.y); w(30, 0);
+      w(40, p.fontSize ?? 12);
+      w(1, p.text ?? '');
+      break;
+    }
+    case 'dimension': {
+      const pts = p.points ?? [];
+      if (pts.length >= 2) {
+        // Draw dimension as LINE + TEXT
+        w(0, 'LINE');
+        w(8, layerName);
+        w(62, aci);
+        w(10, pts[0].x); w(20, pts[0].y); w(30, 0);
+        w(11, pts[1].x); w(21, pts[1].y); w(31, 0);
+        const midX = (pts[0].x + pts[1].x) / 2;
+        const midY = (pts[0].y + pts[1].y) / 2;
+        const dist = Math.hypot(pts[1].x - pts[0].x, pts[1].y - pts[0].y);
+        w(0, 'TEXT');
+        w(8, layerName);
+        w(62, aci);
+        w(10, midX); w(20, midY); w(30, 0);
+        w(40, 12);
+        w(1, dist.toFixed(2));
+      }
+      break;
+    }
+    case 'block_instance': {
+      w(0, 'INSERT');
+      w(8, layerName);
+      w(62, aci);
+      w(2, p.blockId ?? 'BLOCK');
+      w(10, el.x); w(20, el.y); w(30, 0);
+      w(41, p.scale ?? 1);
+      w(42, p.scale ?? 1);
+      w(50, radToDeg(p.rotation ?? 0));
+      break;
+    }
+    default:
+      // For chair, seating-row, etc. — export as LWPOLYLINE bounding box
+      w(0, 'LWPOLYLINE');
+      w(8, layerName);
+      w(62, aci);
+      w(90, 4);
+      w(70, 1);
+      w(10, el.x); w(20, el.y);
+      w(10, el.x + el.width); w(20, el.y);
+      w(10, el.x + el.width); w(20, el.y + el.height);
+      w(10, el.x); w(20, el.y + el.height);
+      break;
+  }
+}
+
+function getLayerName(layers: CADLayer[], layerId: string): string {
+  return layers.find(l => l.id === layerId)?.name ?? '0';
+}
+
+function hexToACI(hex: string): number {
+  const h = hex.replace('#', '');
+  const r = parseInt(h.substring(0, 2), 16);
+  const g = parseInt(h.substring(2, 4), 16);
+  const b = parseInt(h.substring(4, 6), 16);
+  // Map common colors to ACI
+  if (r > 200 && g < 100 && b < 100) return 1; // red
+  if (r > 200 && g > 200 && b < 100) return 2; // yellow
+  if (r < 100 && g > 200 && b < 100) return 3; // green
+  if (r < 100 && g > 200 && b > 200) return 4; // cyan
+  if (r < 100 && g < 100 && b > 200) return 5; // blue
+  if (r > 200 && g < 100 && b > 200) return 6; // magenta
+  if (r > 200 && g > 200 && b > 200) return 7; // white
+  if (r < 100 && g < 100 && b < 100) return 8; // gray
+  return 7; // default white
+}
+
+function lineTypeToDXF(lt: string): string {
+  if (lt === 'dashed') return 'DASHED';
+  if (lt === 'dotted') return 'DOT';
+  return 'CONTINUOUS';
+}
+
+function radToDeg(rad: number): number {
+  return (rad * 180) / Math.PI;
+}