Allow negative min / max values for floating point color layers (#7873)

* allow negative min / max values for floating point color layers * add changelog entry
scalableminds · Jun 10, 2024 · 052c0c7 · 052c0c7
1 parent 59bc7fb
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diff --git a/CHANGELOG.unreleased.md b/CHANGELOG.unreleased.md
@@ -18,6 +18,7 @@ For upgrade instructions, please check the [migration guide](MIGRATIONS.released
 
 ### Changed
 - The "WEBKNOSSOS Changelog" modal now lazily loads its content potentially speeding up the initial loading time of WEBKNOSSOS and thus improving the UX. [#7843](https://github.com/scalableminds/webknossos/pull/7843)
+- Updated the min max settings for the histogram to allow floating point color layers to have negative min / max values. [#7873](https://github.com/scalableminds/webknossos/pull/7873)
 - From now on only project owner get a notification email upon project overtime. The organization specific email list `overTimeMailingList` was removed. [#7842](https://github.com/scalableminds/webknossos/pull/7842)
 - Replaced skeleton comment tab component with antd's `<Tree />`component. [#7802](https://github.com/scalableminds/webknossos/pull/7802)
 

diff --git a/frontend/javascripts/oxalis/model/accessors/dataset_accessor.ts b/frontend/javascripts/oxalis/model/accessors/dataset_accessor.ts
@@ -237,10 +237,10 @@ export function getDefaultValueRangeOfLayer(
       return [0, 2 ** 63 - 1];
 
     case "float":
-      return [0, maxFloatValue];
+      return [-maxFloatValue, maxFloatValue];
 
     case "double":
-      return [0, maxDoubleValue];
+      return [-maxDoubleValue, maxDoubleValue];
 
     default:
       return [0, 255];