From 850a3ac48046e3630524c67ecac5e2f26d499b3f Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Tue, 8 Oct 2019 20:55:57 +0200
Subject: Improve mouse monitoring, add 3d view shift support

---
 utility/projection.py | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'utility/projection.py')

diff --git a/utility/projection.py b/utility/projection.py
index 335e488..1750fac 100644
--- a/utility/projection.py
+++ b/utility/projection.py
@@ -39,6 +39,13 @@ class Rotation:
         self.rotation_x = quaternion.Quaternion()
         self.update(x,z)
 
+    def shift(self, x, z):
+        self.matrix = numpy.matmul(
+            self.matrix,
+            matrix44.create_from_translation([x,0,z])
+        )
+        self.inverse_matrix = numpy.linalg.inv(self.matrix)
+
     def update(self, x, z):
         rotation_x = quaternion.Quaternion(quaternion.create_from_eulers([x,0,0]))
         rotation_z = self.rotation_x.conjugate.cross(
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