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[IgaApplication] bug ShapeFunctionsLocalGradients in nurbs_surface_geometry#14270

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NickNick9 wants to merge 1 commit intomasterfrom
quick_bug_nurbs_surface
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[IgaApplication] bug ShapeFunctionsLocalGradients in nurbs_surface_geometry#14270
NickNick9 wants to merge 1 commit intomasterfrom
quick_bug_nurbs_surface

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📝 Description
This PR fixes a bug in NurbsSurfaceGeometry::ShapeFunctionsLocalGradients (kratos/geometries/nurbs_surface_geometry.h).

The method was building the shape-function container with derivative order 0 while later reading gradient components, and it was also writing the output matrix with swapped dimensions/indexing.

Tags:

  • Core
  • IGA
  • Bugfix

@NickNick9 NickNick9 requested a review from rickyaristio March 10, 2026 09:28
@NickNick9 NickNick9 requested a review from a team as a code owner March 10, 2026 09:28
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@rickyaristio, are you using this method in your workflow?

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