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How to revert MapInfo Professional object processing to old behavior prior to version 9.5.1

UPDATED: April 28, 2017


Starting with v. 9.5.1 of MiPro, the object processing algorithms were changed.  Engineering provided a way to revert to the old object processing for specific cases at customer's requests.

Some problems can exist when combining objects or buffering using these new object processing algorithms starting with version 9.5.1 MiPro or higher.

Examples of situations where reverting to the old algorithms can help:
- combining objects reverses the original line direction in the resulting combined object.
- After using check-regions to make sure no self-intersections are present, Self-intersections can be produced in the resulting combined objects

MiPro can be set to revert back to the old object processing algorithms by typing the following command(s) in the MapBasic window:
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Typing the following MapBasic commands in the MapBasic window will do the following:

                 Set Combine version 950  - provides old object processing behavior
                 Set Buffer version 950  - provides old object processing behavior

                 Set Combine version 951 - provides NEW object processing behavior (this behavior is on by default)
                 Set Buffer version 951  - provides NEW object processing behavior (this behavior is on by default)
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These commands can be used to toggle back and forth as needed.

To open the MapBasic Window go to:
32bit - options>show MapBasic Window
64bit - On the Home tab, in the Window section, click the arrows to either toggle up and down until MapBasic is selectable or click the bottom arrow to diaplay all items.

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