feat: gets normal of a 2d element given the axes

labmec · Aug 20, 2024 · 4abd50b · 4abd50b
1 parent 3f3114c
commit 4abd50b
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/Util/pzaxestools.h b/Util/pzaxestools.h
@@ -8,6 +8,7 @@
 
 #include "pzfmatrix.h"
 #include "pzerror.h"
+#include "pzvec_extras.h"
 
 /**
  * @ingroup util
@@ -144,6 +145,15 @@ class TPZAxesTools {
         }
     }
 
+    static void GetNormal(TPZFMatrix<TVar> &axes, TPZVec<REAL>& normal){
+        if (axes.Rows() != 2) {
+            DebugStop();
+        }
+        TPZManVector<REAL,3> ax1 = {axes(0,0),axes(0,1),axes(0,2)};
+        TPZManVector<REAL,3> ax2 = {axes(1,0),axes(1,1),axes(1,2)};
+        Cross(ax1,ax2,normal);
+    }
+
     /** Test code */
     static int main(){
         TPZFMatrix<> axes(2,3,0.);