| import * as zrUtil from 'zrender/src/core/util'; |
| |
| function dataToCoordSize(dataSize, dataItem) { |
| // dataItem is necessary in log axis. |
| return zrUtil.map(['Radius', 'Angle'], function (dim, dimIdx) { |
| var axis = this['get' + dim + 'Axis'](); |
| var val = dataItem[dimIdx]; |
| var halfSize = dataSize[dimIdx] / 2; |
| var method = 'dataTo' + dim; |
| var result = axis.type === 'category' ? axis.getBandWidth() : Math.abs(axis[method](val - halfSize) - axis[method](val + halfSize)); |
| |
| if (dim === 'Angle') { |
| result = result * Math.PI / 180; |
| } |
| |
| return result; |
| }, this); |
| } |
| |
| export default function (coordSys) { |
| var radiusAxis = coordSys.getRadiusAxis(); |
| var angleAxis = coordSys.getAngleAxis(); |
| var radius = radiusAxis.getExtent(); |
| radius[0] > radius[1] && radius.reverse(); |
| return { |
| coordSys: { |
| type: 'polar', |
| cx: coordSys.cx, |
| cy: coordSys.cy, |
| r: radius[1], |
| r0: radius[0] |
| }, |
| api: { |
| coord: zrUtil.bind(function (data) { |
| var radius = radiusAxis.dataToRadius(data[0]); |
| var angle = angleAxis.dataToAngle(data[1]); |
| var coord = coordSys.coordToPoint([radius, angle]); |
| coord.push(radius, angle * Math.PI / 180); |
| return coord; |
| }), |
| size: zrUtil.bind(dataToCoordSize, coordSys) |
| } |
| }; |
| } |