How can I change charts generated by apache poi to not use smoothed lines and show empty cells as gaps?
问题 I am using POI 3.12-beta1 and have code that creates a line chart with multiple datasets and named series in the legend. However, the default settings for line charts in poi generate a line that has been smoothed over the data points. Empty values are also being plotted as 0, but we want the lines to stop at the first column where there is an empty cell. I can go into the chart properties once it is rendered in an xlsx file and change these settings, but we need to have the xlsx rendered with