58 lines
2.3 KiB
Plaintext
58 lines
2.3 KiB
Plaintext
/**
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* @file Data zoom processor
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*/
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define(function (require) {
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var echarts = require('../../echarts');
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echarts.registerProcessor('filter', function (ecModel, api) {
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ecModel.eachComponent('dataZoom', function (dataZoomModel) {
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// We calculate window and reset axis here but not in model
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// init stage and not after action dispatch handler, because
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// reset should be called after seriesData.restoreData.
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dataZoomModel.eachTargetAxis(resetSingleAxis);
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// Caution: data zoom filtering is order sensitive when using
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// percent range and no min/max/scale set on axis.
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// For example, we have dataZoom definition:
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// [
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// {xAxisIndex: 0, start: 30, end: 70},
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// {yAxisIndex: 0, start: 20, end: 80}
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// ]
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// In this case, [20, 80] of y-dataZoom should be based on data
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// that have filtered by x-dataZoom using range of [30, 70],
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// but should not be based on full raw data. Thus sliding
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// x-dataZoom will change both ranges of xAxis and yAxis,
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// while sliding y-dataZoom will only change the range of yAxis.
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// So we should filter x-axis after reset x-axis immediately,
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// and then reset y-axis and filter y-axis.
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dataZoomModel.eachTargetAxis(filterSingleAxis);
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});
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ecModel.eachComponent('dataZoom', function (dataZoomModel) {
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// Fullfill all of the range props so that user
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// is able to get them from chart.getOption().
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var axisProxy = dataZoomModel.findRepresentativeAxisProxy();
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var percentRange = axisProxy.getDataPercentWindow();
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var valueRange = axisProxy.getDataValueWindow();
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dataZoomModel.setRawRange({
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start: percentRange[0],
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end: percentRange[1],
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startValue: valueRange[0],
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endValue: valueRange[1]
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});
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});
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});
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function resetSingleAxis(dimNames, axisIndex, dataZoomModel) {
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dataZoomModel.getAxisProxy(dimNames.name, axisIndex).reset(dataZoomModel);
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}
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function filterSingleAxis(dimNames, axisIndex, dataZoomModel) {
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dataZoomModel.getAxisProxy(dimNames.name, axisIndex).filterData(dataZoomModel);
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}
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});
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