renamed graphics-element dir

docs/js/graphics-element/lib/bezierjs/poly-bezier.js

@@ -0,0 +1,70 @@
+import { utils } from "./utils.js";
+
+/**
+ * Poly Bezier
+ * @param {[type]} curves [description]
+ */
+class PolyBezier {
+  constructor(curves) {
+    this.curves = [];
+    this._3d = false;
+    if (!!curves) {
+      this.curves = curves;
+      this._3d = this.curves[0]._3d;
+    }
+  }
+
+  valueOf() {
+    return this.toString();
+  }
+
+  toString() {
+    return (
+      "[" +
+      this.curves
+        .map(function (curve) {
+          return utils.pointsToString(curve.points);
+        })
+        .join(", ") +
+      "]"
+    );
+  }
+
+  addCurve(curve) {
+    this.curves.push(curve);
+    this._3d = this._3d || curve._3d;
+  }
+
+  length() {
+    return this.curves
+      .map(function (v) {
+        return v.length();
+      })
+      .reduce(function (a, b) {
+        return a + b;
+      });
+  }
+
+  curve(idx) {
+    return this.curves[idx];
+  }
+
+  bbox() {
+    const c = this.curves;
+    var bbox = c[0].bbox();
+    for (var i = 1; i < c.length; i++) {
+      utils.expandbox(bbox, c[i].bbox());
+    }
+    return bbox;
+  }
+
+  offset(d) {
+    const offset = [];
+    this.curves.forEach(function (v) {
+      offset = offset.concat(v.offset(d));
+    });
+    return new PolyBezier(offset);
+  }
+}
+
+export { PolyBezier };