Method setParallelAxis

src/component/dataZoom/DataZoomModel.ts:325–348

(axisModels: ComponentModel[], axisDim: DataZoomAxisDimension)

        }

        function setParallelAxis(axisModels: ComponentModel[], axisDim: DataZoomAxisDimension): void {
            // At least use the first parallel axis as the target axis.
            const axisModel = axisModels[0];
            if (!axisModel) {
                return;
            }

            const axisInfo = new DataZoomAxisInfo();
            axisInfo.add(axisModel.componentIndex);
            targetAxisIndexMap.set(axisDim, axisInfo);
            needAuto = false;

            // Find parallel axes in the same grid.
            if (axisDim === 'x' || axisDim === 'y') {
                const gridModel = axisModel.getReferringComponents('grid', SINGLE_REFERRING).models[0];
                gridModel && each(axisModels, function (axModel) {
                    if (axisModel.componentIndex !== axModel.componentIndex
                        && gridModel === axModel.getReferringComponents('grid', SINGLE_REFERRING).models[0]
                    ) {
                        axisInfo.add(axModel.componentIndex);
                    }
                });
            }
        }

        if (needAuto) {
            // If no parallel axis, find the first category axis as default. (Also consider polar).