fix Bug 33668

common/Drawings/Format/ChartSpace.js

@@ -3037,7 +3037,8 @@ CChartSpace.prototype.checkValByNumRef = function(workbook, ser, val, bVertical)
                         if(!row_hidden && !source_worksheet.getColHidden(j) || (this.displayHidden === true))
                         {
                             cell = source_worksheet.getCell3(range.r1, j);
-                            var value = parseFloat(cell.getValue());
+                            var sCellValue = cell.getValue();
+                            var value = parseFloat(sCellValue);
                             if(AscFormat.isRealNumber(value))
                             {
                                 hidden = false;
@@ -3071,14 +3072,30 @@ CChartSpace.prototype.checkValByNumRef = function(workbook, ser, val, bVertical)
                             {
                                 if(AscFormat.isRealNumber(this.displayEmptyCellsAs) && this.displayEmptyCellsAs !== 1)
                                 {
-                                    if(this.displayEmptyCellsAs === 2)
+                                    if(this.displayEmptyCellsAs === 2 || ((typeof sCellValue === "string") && sCellValue.length > 0))
                                     {
                                         pt = new AscFormat.CNumericPoint();
                                         pt.setIdx(pt_index);
                                         pt.setVal(0);
                                         num_cache.addPt(pt);
+                                        if(aSpanPoints.length > 0 )
+                                        {
+                                            if(AscFormat.isRealNumber(nLastNoEmptyIndex))
+                                            {
+                                                var oStartPoint = num_cache.getPtByIndex(nLastNoEmptyIndex);
+                                                for(t = 0; t < aSpanPoints.length; ++t)
+                                                {
+                                                    aSpanPoints[t].val = oStartPoint.val + ((pt.val - oStartPoint.val)/(aSpanPoints.length + 1))*(t+1);
+                                                    num_cache.pts.splice(nSpliceIndex + t, 0, aSpanPoints[t]);
+                                                }
+                                            }
+                                            aSpanPoints.length = 0;
+                                        }
+                                        nLastNoEmptyIndex = pt_index;
+                                        nSpliceIndex = num_cache.pts.length;
+                                        dLastNoEmptyVal = pt.val;
                                     }
-                                    if(this.displayEmptyCellsAs === 0)
+                                    else if(this.displayEmptyCellsAs === 0 && ser.getObjectType() === AscDFH.historyitem_type_LineSeries)
                                     {
                                         pt = new AscFormat.CNumericPoint();
                                         pt.setIdx(pt_index);