diff --git a/src/component/marker/MarkLineView.ts b/src/component/marker/MarkLineView.ts
index 9ee9aa43d0..b3b3002659 100644
--- a/src/component/marker/MarkLineView.ts
+++ b/src/component/marker/MarkLineView.ts
@@ -71,31 +71,41 @@ const markLineTransform = function (
) {
const data = seriesModel.getData();
+ let useRawValue = false;
+
let itemArray: MarkLineMergedItemOption[];
if (!isArray(item)) {
- // Special type markLine like 'min', 'max', 'average', 'median'
const mlType = item.type;
- if (
- mlType === 'min' || mlType === 'max' || mlType === 'average' || mlType === 'median'
- // In case
- // data: [{
- // yAxis: 10
- // }]
- || (item.xAxis != null || item.yAxis != null)
- ) {
+ // Special statistic type like 'min', 'max', 'average', 'median'
+ const isSpecialType = mlType === 'min' || mlType === 'max' || mlType === 'average' || mlType === 'median';
+ // In case
+ // data: [{
+ // yAxis: 10
+ // }]
+ const isAxisValueType = item.xAxis != null || item.yAxis != null;
+ if (isSpecialType || isAxisValueType) {
let valueAxis;
let value;
- if (item.yAxis != null || item.xAxis != null) {
+ if (isAxisValueType) {
valueAxis = coordSys.getAxis(item.yAxis != null ? 'y' : 'x');
value = retrieve(item.yAxis, item.xAxis);
+
+ // use raw value without precision rounding when targeting axis value
+ // to ensure it is at the expected position
+ useRawValue = true;
}
else {
const axisInfo = markerHelper.getAxisInfo(item, data, coordSys, seriesModel);
valueAxis = axisInfo.valueAxis;
const valueDataDim = getStackedDimension(data, axisInfo.valueDataDim);
value = markerHelper.numCalculate(data, valueDataDim, mlType);
+ // PENDING:
+ // consider supporting precision for single marker item and auto precision for statistic type (average/median)?
+
+ // use raw value for min/max value
+ useRawValue = mlType === 'min' || mlType === 'max';
}
const valueIndex = valueAxis.dim === 'x' ? 0 : 1;
const baseIndex = 1 - valueIndex;
@@ -112,9 +122,11 @@ const markLineTransform = function (
mlFrom.coord[baseIndex] = -Infinity;
mlTo.coord[baseIndex] = Infinity;
- const precision = mlModel.get('precision');
- if (precision >= 0 && isNumber(value)) {
- value = +value.toFixed(Math.min(precision, 20));
+ if (!useRawValue) {
+ const precision = mlModel.get('precision');
+ if (precision >= 0 && isNumber(value)) {
+ value = numberUtil.round(value, precision);
+ }
}
mlFrom.coord[valueIndex] = mlTo.coord[valueIndex] = value;
diff --git a/test/markLine-precision.html b/test/markLine-precision.html
new file mode 100644
index 0000000000..4f9e39adb8
--- /dev/null
+++ b/test/markLine-precision.html
@@ -0,0 +1,175 @@
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