Hi Steve,
Thanks for your interest in Syncfusion products.
For better look and feel we used to maintain equal distance between the datapoints. However it is possible plot datapoints based on positional values. For this IsIndexed property is helpful.
When IsIndexed property is set to false, all the values in the collection will be sorted in ascending order and they are plotted. Such an X axis that ignores the X-values and simply uses the positional value of a point in a series.
When IsIndexed is set to true, Y values will be plotted based on the order in which they are added to the collection and X values are displayed as labels in the X axis.
Please refer to the sample from the below given link, which clearly shows the behavior of Indexed mode.
IsIndexed SampleBut, you cannot visualizes the distance with continuous charts like line, as this will be drawn by joining all the points.
Please let us know if you have any queries.
Regards,
Pavithra.J