@antv/g2/lib/interaction/action/mask/dim-rect.js

the Grammar of Graphics in Javascript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var tslib_1 = require("tslib");
var util_1 = require("@antv/util");
var rect_1 = tslib_1.__importDefault(require("./rect"));
function clampPoint(point) {
    point.x = (0, util_1.clamp)(point.x, 0, 1);
    point.y = (0, util_1.clamp)(point.y, 0, 1);
}
/**
 * @ignore
 */
var DimRect = /** @class */ (function (_super) {
    tslib_1.__extends(DimRect, _super);
    function DimRect() {
        var _this = _super !== null && _super.apply(this, arguments) || this;
        _this.dim = 'x';
        _this.inPlot = true;
        return _this;
    }
    DimRect.prototype.getRegion = function () {
        var start = null;
        var end = null;
        var points = this.points;
        var dim = this.dim;
        var coord = this.context.view.getCoordinate();
        var normalStart = coord.invert((0, util_1.head)(points));
        var normalEnd = coord.invert((0, util_1.last)(points));
        if (this.inPlot) {
            // 约束到 0 - 1 范围内
            clampPoint(normalStart);
            clampPoint(normalEnd);
        }
        if (dim === 'x') {
            // x 轴方向扩展, y 轴方向占满全部
            start = coord.convert({
                x: normalStart.x,
                y: 0,
            });
            end = coord.convert({
                x: normalEnd.x,
                y: 1,
            });
        }
        else {
            // y 轴方向扩展, x 轴方向占满全部
            start = coord.convert({
                x: 0,
                y: normalStart.y,
            });
            end = coord.convert({
                x: 1,
                y: normalEnd.y,
            });
        }
        return {
            start: start,
            end: end,
        };
    };
    return DimRect;
}(rect_1.default));
exports.default = DimRect;
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