逐步完成前后端服务器

frontend/node_modules/zrender/lib/graphic/shape/Star.js

@@ -0,0 +1,54 @@
+import { __extends } from "tslib";
+import Path from '../Path.js';
+var PI = Math.PI;
+var cos = Math.cos;
+var sin = Math.sin;
+var StarShape = (function () {
+    function StarShape() {
+        this.cx = 0;
+        this.cy = 0;
+        this.n = 3;
+        this.r = 0;
+    }
+    return StarShape;
+}());
+export { StarShape };
+var Star = (function (_super) {
+    __extends(Star, _super);
+    function Star(opts) {
+        return _super.call(this, opts) || this;
+    }
+    Star.prototype.getDefaultShape = function () {
+        return new StarShape();
+    };
+    Star.prototype.buildPath = function (ctx, shape) {
+        var n = shape.n;
+        if (!n || n < 2) {
+            return;
+        }
+        var x = shape.cx;
+        var y = shape.cy;
+        var r = shape.r;
+        var r0 = shape.r0;
+        if (r0 == null) {
+            r0 = n > 4
+                ? r * cos(2 * PI / n) / cos(PI / n)
+                : r / 3;
+        }
+        var dStep = PI / n;
+        var deg = -PI / 2;
+        var xStart = x + r * cos(deg);
+        var yStart = y + r * sin(deg);
+        deg += dStep;
+        ctx.moveTo(xStart, yStart);
+        for (var i = 0, end = n * 2 - 1, ri = void 0; i < end; i++) {
+            ri = i % 2 === 0 ? r0 : r;
+            ctx.lineTo(x + ri * cos(deg), y + ri * sin(deg));
+            deg += dStep;
+        }
+        ctx.closePath();
+    };
+    return Star;
+}(Path));
+Star.prototype.type = 'star';
+export default Star;