Function lineAnimationDiff

_benchmarks/sample_echarts.js:41146–41252

(oldData, newData, oldStackedOnPoints, newStackedOnPoints, oldCoordSys, newCoordSys, oldValueOrigin, newValueOrigin)

    }

    function lineAnimationDiff(oldData, newData, oldStackedOnPoints, newStackedOnPoints, oldCoordSys, newCoordSys, oldValueOrigin, newValueOrigin) {
      var diff = diffData(oldData, newData); // let newIdList = newData.mapArray(newData.getId);
      // let oldIdList = oldData.mapArray(oldData.getId);
      // convertToIntId(newIdList, oldIdList);
      // // FIXME One data ?
      // diff = arrayDiff(oldIdList, newIdList);

      var currPoints = [];
      var nextPoints = []; // Points for stacking base line

      var currStackedPoints = [];
      var nextStackedPoints = [];
      var status = [];
      var sortedIndices = [];
      var rawIndices = [];
      var newDataOldCoordInfo = prepareDataCoordInfo(oldCoordSys, newData, oldValueOrigin);
      var oldDataNewCoordInfo = prepareDataCoordInfo(newCoordSys, oldData, newValueOrigin);
      var oldPoints = oldData.getLayout('points') || [];
      var newPoints = newData.getLayout('points') || [];

      for (var i = 0; i < diff.length; i++) {
        var diffItem = diff[i];
        var pointAdded = true;
        var oldIdx2 = void 0;
        var newIdx2 = void 0; // FIXME, animation is not so perfect when dataZoom window moves fast
        // Which is in case remvoing or add more than one data in the tail or head

        switch (diffItem.cmd) {
          case '=':
            oldIdx2 = diffItem.idx * 2;
            newIdx2 = diffItem.idx1 * 2;
            var currentX = oldPoints[oldIdx2];
            var currentY = oldPoints[oldIdx2 + 1];
            var nextX = newPoints[newIdx2];
            var nextY = newPoints[newIdx2 + 1]; // If previous data is NaN, use next point directly

            if (isNaN(currentX) || isNaN(currentY)) {
              currentX = nextX;
              currentY = nextY;
            }

            currPoints.push(currentX, currentY);
            nextPoints.push(nextX, nextY);
            currStackedPoints.push(oldStackedOnPoints[oldIdx2], oldStackedOnPoints[oldIdx2 + 1]);
            nextStackedPoints.push(newStackedOnPoints[newIdx2], newStackedOnPoints[newIdx2 + 1]);
            rawIndices.push(newData.getRawIndex(diffItem.idx1));
            break;

          case '+':
            var newIdx = diffItem.idx;
            var newDataDimsForPoint = newDataOldCoordInfo.dataDimsForPoint;
            var oldPt = oldCoordSys.dataToPoint([newData.get(newDataDimsForPoint[0], newIdx), newData.get(newDataDimsForPoint[1], newIdx)]);
            newIdx2 = newIdx * 2;
            currPoints.push(oldPt[0], oldPt[1]);
            nextPoints.push(newPoints[newIdx2], newPoints[newIdx2 + 1]);
            var stackedOnPoint = getStackedOnPoint(newDataOldCoordInfo, oldCoordSys, newData, newIdx);
            currStackedPoints.push(stackedOnPoint[0], stackedOnPoint[1]);
            nextStackedPoints.push(newStackedOnPoints[newIdx2], newStackedOnPoints[newIdx2 + 1]);