逐步完成前后端服务器

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

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+import { __extends } from "tslib";
+import Path from '../Path.js';
+var RingShape = (function () {
+    function RingShape() {
+        this.cx = 0;
+        this.cy = 0;
+        this.r = 0;
+        this.r0 = 0;
+    }
+    return RingShape;
+}());
+export { RingShape };
+var Ring = (function (_super) {
+    __extends(Ring, _super);
+    function Ring(opts) {
+        return _super.call(this, opts) || this;
+    }
+    Ring.prototype.getDefaultShape = function () {
+        return new RingShape();
+    };
+    Ring.prototype.buildPath = function (ctx, shape) {
+        var x = shape.cx;
+        var y = shape.cy;
+        var PI2 = Math.PI * 2;
+        ctx.moveTo(x + shape.r, y);
+        ctx.arc(x, y, shape.r, 0, PI2, false);
+        ctx.moveTo(x + shape.r0, y);
+        ctx.arc(x, y, shape.r0, 0, PI2, true);
+    };
+    return Ring;
+}(Path));
+Ring.prototype.type = 'ring';
+export default Ring;