diff -r f6a3640b1818 -r 69087b1e123b src/types/matrix.h
--- a/src/types/matrix.h	Fri Mar 30 14:30:51 2018 +0300
+++ b/src/types/matrix.h	Sat Mar 31 18:41:24 2018 +0300
@@ -19,6 +19,7 @@
 #pragma once
 #include <QString>
 #include <QMetaType>
+#include <QGenericMatrix>
 
 /*
  * A mathematical 3 × 3 matrix
@@ -31,6 +32,7 @@
 
 	Matrix();
 	Matrix (const std::initializer_list<double>& values);
+	Matrix(const QGenericMatrix<3, 3>& other);
 	Matrix (double fillval);
 
 	double* begin();