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dataZoom inside with option pinned 'start' 'end' #20829

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dataZoom inside with option pinned 'start' 'end' #20829

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5 changes: 3 additions & 2 deletions src/component/dataZoom/DataZoomModel.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -579,12 +579,13 @@ class DataZoomModel<Opts extends DataZoomOption = DataZoomOption> extends Compon
/**
* Retrieve those raw params from option, which will be cached separately,
* because they will be overwritten by normalized/calculated values in the main
* process.
* process. Get parameter 'anchor' to add option to pin the chart to 'start' or
# 'ene' while using default dataZoom
*/
function retrieveRawOption<T extends DataZoomOption>(option: T) {
const ret = {} as T;
each(
['start', 'end', 'startValue', 'endValue', 'throttle'] as const,
['start', 'end', 'startValue', 'endValue', 'throttle', 'anchor'] as const,
function (name) {
option.hasOwnProperty(name) && ((ret as any)[name] = option[name]);
}
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11 changes: 8 additions & 3 deletions src/component/dataZoom/InsideZoomView.ts
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Expand Up @@ -114,9 +114,14 @@ const getRangeHandlers: {
) / directionInfo.pixelLength * (range[1] - range[0]) + range[0];

const scale = Math.max(1 / e.scale, 0);
range[0] = (range[0] - percentPoint) * scale + percentPoint;
range[1] = (range[1] - percentPoint) * scale + percentPoint;

// add logic to pin the dataZoom to 'end' or 'start'
var anchor = this.__model?.option?.anchor || null;
if (anchor !== 'start') { // pin zoom to left side of the X axis viewBox
range[0] = (range[0] - percentPoint) * scale + percentPoint;
}
if (anchor !== 'end') { // pin zoom to the right side of the X axis viewBox
range[1] = (range[1] - percentPoint) * scale + percentPoint;
}
// Restrict range.
const minMaxSpan = this.dataZoomModel.findRepresentativeAxisProxy().getMinMaxSpan();

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