1 | "use strict";
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | exports.polar = void 0;
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4 |
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5 | var scale_1 = require("@antv/scale");
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6 | var utils_1 = require("../utils");
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7 |
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8 |
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9 |
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16 |
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17 | var polar = function (params, x, y, width, height) {
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18 | var _a = params, startAngle = _a[0], endAngle = _a[1], innerRadius = _a[2], outerRadius = _a[3];
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19 | var radius = new scale_1.Linear({
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20 | range: [innerRadius, outerRadius],
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21 | });
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22 | var angle = new scale_1.Linear({
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23 | range: [startAngle, endAngle],
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24 | });
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25 | var aspect = height / width;
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26 | var sx = aspect > 1 ? 1 : aspect;
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27 | var sy = aspect > 1 ? 1 / aspect : 1;
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28 | return {
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29 | transform: function (vector) {
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30 | var v1 = vector[0], v2 = vector[1];
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31 | var theta = angle.map(v1);
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32 | var r = radius.map(v2);
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33 |
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34 | var x = r * Math.cos(theta) * sx;
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35 | var y = r * Math.sin(theta) * sy;
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36 |
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37 | var dx = x * 0.5 + 0.5;
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38 | var dy = y * 0.5 + 0.5;
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39 | return [dx, dy];
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40 | },
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41 | untransform: function (vector) {
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42 | var dx = vector[0], dy = vector[1];
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43 | var x = ((dx - 0.5) * 2) / sx;
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44 | var y = ((dy - 0.5) * 2) / sy;
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45 | var r = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));
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46 | var t = Math.atan2(y, x);
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47 | var theta = utils_1.adjustAngle(t, startAngle, endAngle);
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48 | var v1 = angle.invert(theta);
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49 | var v2 = radius.invert(r);
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50 | return [v1, v2];
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51 | },
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52 | };
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53 | };
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54 | exports.polar = polar;
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55 |
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