From 5acb32685918677ed10586fa36fdf335a6196ed6 Mon Sep 17 00:00:00 2001
From: Damien Marchal <damien.marchal@univ-lille1.fr>
Date: Mon, 27 Oct 2025 16:00:51 +0100
Subject: [PATCH] Add basic support for Data<Eigen::MatrixXF> in data

---
 Plugin/src/SofaPython3/PythonFactory.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Plugin/src/SofaPython3/PythonFactory.cpp b/Plugin/src/SofaPython3/PythonFactory.cpp
index 3a9c678b..42b8e9cf 100644
--- a/Plugin/src/SofaPython3/PythonFactory.cpp
+++ b/Plugin/src/SofaPython3/PythonFactory.cpp
@@ -45,6 +45,8 @@ using sofa::core::objectmodel::Event;
 
 #include <sofa/defaulttype/DataTypeInfo.h>
 
+#include <pybind11/eigen.h>
+
 SOFAPYTHON3_BIND_ATTRIBUTE_ERROR()
 
 /// Makes an alias for the pybind11 namespace to increase readability.
@@ -196,6 +198,10 @@ py::object PythonFactory::valueToPython_ro(sofa::core::objectmodel::BaseData* da
         a.attr("flags").attr("writeable") = false;
         return std::move(a);
     }
+    if(auto p = dynamic_cast<sofa::core::objectmodel::Data<Eigen::MatrixXf>*>(data)){
+        const auto matrice = p->getValue();
+        return py::cast(matrice);
+    }
 
     /// If this is not the case we return the converted datas (copy)
     return convertToPython(data);