# Get results at a location (not a gridpoint)

**URL:** <https://forum.itascainternational.com/t/get-results-at-a-location-not-a-gridpoint/1538>\
**Category:** FLAC3D\
**Tags:** fish, python\
**Created:** [June 19, 2024, 7:38pm UTC](https://forum.itascainternational.com/t/get-results-at-a-location-not-a-gridpoint/1538 "2024-06-19T19:38:07Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Zakaria](https://avatars.discourse-cdn.com/v4/letter/z/b5ac83/32.png) [@Zakaria](https://forum.itascainternational.com/u/Zakaria)\
**Post date:** [June 19, 2024, 7:38pm UTC](https://forum.itascainternational.com/t/get-results-at-a-location-not-a-gridpoint/1538/1 "2024-06-19T19:38:07Z")

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Hello everyone,  
is it possible to get the value of displacement for example at a location that is not a gridpoint ? just like getting the value in [Information Control Set — Itasca Software 9.0 documentation (itascacg.com)](https://docs.itascacg.com/itasca900/common/docproject/source/manual/program_guide/mechanics/plotting/views/information.html?node457) with mouse mode.  
Thank you

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**Author:** ![ddegagne](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.itascainternational.com/ddegagne/32/55_2.png) [@ddegagne](https://forum.itascainternational.com/u/ddegagne)\
**Post date:** [June 19, 2024, 11:25pm UTC](https://forum.itascainternational.com/t/get-results-at-a-location-not-a-gridpoint/1538/2 "2024-06-19T23:25:28Z")

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Hi Zakaria, yes this is possible:

(1) The values of a set of variables can be sampled and stored during a model run by using the history command. These variables can then be plotted versus step number or versus other histories; this data can also be exported as a file. Learn more about [HISTORY](https://docs.itascacg.com/itasca910/common/kernel/doc/manual/history_manual/history.html?highlight=history) and [ZONE HISTORIES](https://docs.itascacg.com/itasca910/flac3d/zone/doc/manual/zone_manual/zone_commands/cmd_zone.history.html#command:zone.history). Note that if the value is gridpoint-based, then a value is calculated using a weighting function inside the zone.

(2) You can also use Zone Field Data Names. The FISH zone field data functions allow users to make queries about the values of a model variable at arbitrary locations in space. This includes zone-based information as well as gridpoint-based information. [LEARN MORE](https://docs.itascacg.com/itasca910/flac3d/docproject/source/elements/zones/zones.html?node3616#zone-field-data-names)

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**Author:** ![Newuser](https://avatars.discourse-cdn.com/v4/letter/n/3e96dc/32.png) [@Newuser](https://forum.itascainternational.com/u/Newuser)\
**Post date:** [June 20, 2024, 2:43am UTC](https://forum.itascainternational.com/t/get-results-at-a-location-not-a-gridpoint/1538/3 "2024-06-20T02:43:52Z")

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David, weighting function inside zone??? Can you please shed light on this?

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**Author:** ![ddegagne](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.itascainternational.com/ddegagne/32/55_2.png) [@ddegagne](https://forum.itascainternational.com/u/ddegagne)\
**Post date:** [June 20, 2024, 5:02pm UTC](https://forum.itascainternational.com/t/get-results-at-a-location-not-a-gridpoint/1538/4 "2024-06-20T17:02:12Z")

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This just means interpolation of value of point within zone based on the zone grid point values.