fix(line): correctly stack not-synced time series data. close #15742

src/data/SeriesData.ts

@@ -1391,7 +1391,7 @@ class SeriesData<
             const invertedIndicesMap = data._invertedIndicesMap;
             zrUtil.each(invertedIndicesMap, function (invertedIndices, dim) {
                 const dimInfo = data._dimInfos[dim];
-                // Currently, only dimensions that has ordinalMeta can create inverted indices.
+                // Currently, only dimensions that have ordinalMeta or are of type time can create inverted indices.
                 const ordinalMeta = dimInfo.ordinalMeta;
                 const store = data._store;
                 if (ordinalMeta) {
@@ -1408,6 +1408,13 @@ class SeriesData<
                         invertedIndices[store.get(dimInfo.storeDimIndex, i) as number] = i;
                     }
                 }
+                else if (dimInfo.type === 'time') {
+                    invertedIndices = invertedIndicesMap[dim] = { length: store.count() };
+                    for (let i = 0; i < store.count(); i++) {
+                        // Only support the case that all values are distinct.
+                        invertedIndices[store.get(dimInfo.storeDimIndex, i) as number] = i;
+                    }
+                }
             });
         };
 

src/data/helper/dataStackHelper.ts

@@ -103,7 +103,7 @@ export function enableDataStack(
 
         if (mayStack && !dimensionInfo.isExtraCoord) {
             // Find the first ordinal dimension as the stackedByDimInfo.
-            if (!byIndex && !stackedByDimInfo && dimensionInfo.ordinalMeta) {
+            if (!byIndex && !stackedByDimInfo && (dimensionInfo.ordinalMeta || dimensionInfo.type === 'time')) {
                 stackedByDimInfo = dimensionInfo;
             }
             // Find the first stackable dimension as the stackedDimInfo.