Problem: The Create Space Time Cube produces a different extent in the result when using the same data and parameters after upgrading to ArcMap 10.5 or ArcGIS Pro 1.3


If you have created a space-time cube with previous versions of the software and re-create that cube with the exact same data and the exact same parameter settings, there may be a noticeable change in the cube extent.


This is because we have improved the way the Create Space Time Cube tool handles bias.
Cube Bias Changes
Previously, the tool would begin the grid with the left top-most data point and adjust the grid a half cell size up and a half cell size over.  The new method takes the total amount of bias on the right edge and the total amount of bias on the bottom edge, splits it in half and moves the cube up and over that amount.  This is a more balanced way of dealing with bias and a better method for minimizing any edge effects present.

Solution or Workaround

The new bias adjustment provides a better result, but, if for any reason it is necessary to re-create the cube with the previous extent, the extent can be specified through the Extent Environment setting.

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