逐步完成前后端服务器

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

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+import { __extends } from "tslib";
+import Path from '../Path.js';
+var PI = Math.PI;
+var sin = Math.sin;
+var cos = Math.cos;
+var IsogonShape = (function () {
+    function IsogonShape() {
+        this.x = 0;
+        this.y = 0;
+        this.r = 0;
+        this.n = 0;
+    }
+    return IsogonShape;
+}());
+export { IsogonShape };
+var Isogon = (function (_super) {
+    __extends(Isogon, _super);
+    function Isogon(opts) {
+        return _super.call(this, opts) || this;
+    }
+    Isogon.prototype.getDefaultShape = function () {
+        return new IsogonShape();
+    };
+    Isogon.prototype.buildPath = function (ctx, shape) {
+        var n = shape.n;
+        if (!n || n < 2) {
+            return;
+        }
+        var x = shape.x;
+        var y = shape.y;
+        var r = shape.r;
+        var dStep = 2 * PI / n;
+        var deg = -PI / 2;
+        ctx.moveTo(x + r * cos(deg), y + r * sin(deg));
+        for (var i = 0, end = n - 1; i < end; i++) {
+            deg += dStep;
+            ctx.lineTo(x + r * cos(deg), y + r * sin(deg));
+        }
+        ctx.closePath();
+        return;
+    };
+    return Isogon;
+}(Path));
+Isogon.prototype.type = 'isogon';
+export default Isogon;