84 lines
2.9 KiB
JavaScript
84 lines
2.9 KiB
JavaScript
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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var zrUtil = require("zrender/lib/core/util");
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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function dataToCoordSize(dataSize, dataItem) {
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// dataItem is necessary in log axis.
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return zrUtil.map(['Radius', 'Angle'], function (dim, dimIdx) {
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var axis = this['get' + dim + 'Axis']();
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var val = dataItem[dimIdx];
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var halfSize = dataSize[dimIdx] / 2;
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var method = 'dataTo' + dim;
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var result = axis.type === 'category' ? axis.getBandWidth() : Math.abs(axis[method](val - halfSize) - axis[method](val + halfSize));
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if (dim === 'Angle') {
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result = result * Math.PI / 180;
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}
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return result;
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}, this);
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}
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function _default(coordSys) {
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var radiusAxis = coordSys.getRadiusAxis();
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var angleAxis = coordSys.getAngleAxis();
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var radius = radiusAxis.getExtent();
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radius[0] > radius[1] && radius.reverse();
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return {
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coordSys: {
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type: 'polar',
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cx: coordSys.cx,
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cy: coordSys.cy,
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r: radius[1],
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r0: radius[0]
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},
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api: {
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coord: zrUtil.bind(function (data) {
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var radius = radiusAxis.dataToRadius(data[0]);
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var angle = angleAxis.dataToAngle(data[1]);
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var coord = coordSys.coordToPoint([radius, angle]);
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coord.push(radius, angle * Math.PI / 180);
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return coord;
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}),
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size: zrUtil.bind(dataToCoordSize, coordSys)
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}
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};
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}
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module.exports = _default;
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