50 lines
1.7 KiB
JavaScript
50 lines
1.7 KiB
JavaScript
"use strict";
|
|
/**
|
|
* @fileoverview 圆
|
|
* @author dxq613@gmail.com
|
|
*/
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
var tslib_1 = require("tslib");
|
|
var base_1 = require("./base");
|
|
var util_1 = require("../util/util");
|
|
var Circle = /** @class */ (function (_super) {
|
|
tslib_1.__extends(Circle, _super);
|
|
function Circle() {
|
|
return _super !== null && _super.apply(this, arguments) || this;
|
|
}
|
|
Circle.prototype.getDefaultAttrs = function () {
|
|
var attrs = _super.prototype.getDefaultAttrs.call(this);
|
|
return tslib_1.__assign(tslib_1.__assign({}, attrs), { x: 0, y: 0, r: 0 });
|
|
};
|
|
Circle.prototype.isInStrokeOrPath = function (x, y, isStroke, isFill, lineWidth) {
|
|
var attrs = this.attr();
|
|
var cx = attrs.x;
|
|
var cy = attrs.y;
|
|
var r = attrs.r;
|
|
var halfLineWidth = lineWidth / 2;
|
|
var absDistance = util_1.distance(cx, cy, x, y);
|
|
// 直接用距离，如果同时存在边和填充时，可以减少两次计算
|
|
if (isFill && isStroke) {
|
|
return absDistance <= r + halfLineWidth;
|
|
}
|
|
if (isFill) {
|
|
return absDistance <= r;
|
|
}
|
|
if (isStroke) {
|
|
return absDistance >= r - halfLineWidth && absDistance <= r + halfLineWidth;
|
|
}
|
|
return false;
|
|
};
|
|
Circle.prototype.createPath = function (context) {
|
|
var attrs = this.attr();
|
|
var cx = attrs.x;
|
|
var cy = attrs.y;
|
|
var r = attrs.r;
|
|
context.beginPath();
|
|
context.arc(cx, cy, r, 0, Math.PI * 2, false);
|
|
context.closePath();
|
|
};
|
|
return Circle;
|
|
}(base_1.default));
|
|
exports.default = Circle;
|
|
//# sourceMappingURL=circle.js.map
|