Seems to be a number of issues with skipping / elipsis'ng labels.
If I have a line chart with 90 items the first label is display in full, problem is it runs right against the next label it tries to display (skipped 4 labels in between). Tried a padding option to the label object, but that did not seem to make any difference.
Also if the label is rotated no labels are skipped, they are just written on top of each other.
calculateCategoryCount is documented and seems to address this point but does not seem to be implemented.
Thanks for your feedback. There were indeed a few errors with how rotated labels were handled. This has been fixed now. You won't need to use a special configuration parameter for it, spacing for rotated labels will be handled automatically, and the same goes for maintaining visibility of the first displayed label.