in case there is no entries in the matrix

alxbilger · alxbilger · commit 2b2793916f64 · 2024-02-14T17:16:41.000+01:00
diff --git a/bindings/Modules/src/SofaPython3/SofaLinearSystem/Binding_LinearSystem.cpp b/bindings/Modules/src/SofaPython3/SofaLinearSystem/Binding_LinearSystem.cpp
@@ -87,6 +87,10 @@ void bindLinearSystems(py::module &m)
     {
         if (CRS* matrix = self.getSystemMatrix())
         {
+            if (matrix->colsValue.empty()) //null matrix: contains no entries
+            {
+                return EigenSparseMatrix<Real>{matrix->rows(), matrix->cols()};
+            }
             return toEigen(*matrix);
         }
         return {};

Original file line number	Diff line number	Diff line change
`@@ -87,6 +87,10 @@ void bindLinearSystems(py::module &m)`
`87`	`87`	`{`
`88`	`88`	`if (CRS* matrix = self.getSystemMatrix())`
`89`	`89`	`{`
	`90`	`+ if (matrix->colsValue.empty()) //null matrix: contains no entries`
	`91`	`+ {`
	`92`	`+ return EigenSparseMatrix<Real>{matrix->rows(), matrix->cols()};`
	`93`	`+ }`
`90`	`94`	`return toEigen(*matrix);`
`91`	`95`	`}`
`92`	`96`	`return {};`