matplotlib
diff --git a/‎lib/mpl_toolkits/mplot3d/axes3d.py‎
Lines changed: 16 additions & 2 deletions b/‎lib/mpl_toolkits/mplot3d/axes3d.py‎
Lines changed: 16 additions & 2 deletions
diff --git a/‎lib/mpl_toolkits/mplot3d/proj3d.py‎
Lines changed: 9 additions & 0 deletions b/‎lib/mpl_toolkits/mplot3d/proj3d.py‎
Lines changed: 9 additions & 0 deletions
diff --git a/‎lib/mpl_toolkits/tests/baseline_images/test_mplot3d/axes3d_persp_false.pdf‎
7.06 KB b/‎lib/mpl_toolkits/tests/baseline_images/test_mplot3d/axes3d_persp_false.pdf‎
7.06 KB
diff --git a/‎lib/mpl_toolkits/tests/baseline_images/test_mplot3d/axes3d_persp_false.png‎
42.2 KB b/‎lib/mpl_toolkits/tests/baseline_images/test_mplot3d/axes3d_persp_false.png‎
42.2 KB
@@ -63,6 +63,7 @@ def __init__(self, fig, rect=None, *args, **kwargs):
           *elev*             Elevation viewing angle (default 30)
           *zscale*           [%(scale)s]
           *sharez*           Other axes to share z-limits with
+          *persp*            Perspective projection (default True)
           ================   =========================================
 
         .. versionadded :: 1.2.1
@@ -78,6 +79,7 @@ def __init__(self, fig, rect=None, *args, **kwargs):
         self.initial_elev = kwargs.pop('elev', 30)
         zscale = kwargs.pop('zscale', None)
         sharez = kwargs.pop('sharez', None)
+        self.set_persp(kwargs.pop('persp', True))
 
         self.xy_viewLim = unit_bbox()
         self.zz_viewLim = unit_bbox()
@@ -959,6 +961,18 @@ def view_init(self, elev=None, azim=None):
         else:
             self.azim = azim
 
+    def set_persp(self, persp):
+        """
+        Set whether the projection should be perspective.
+
+        If set to *False*, orthographic projection will be used.
+
+        """
+        if persp:
+            self._projection = proj3d.persp_transformation
+        else:
+            self._projection = proj3d.ortho_transformation
+
     def get_proj(self):
         """
         Create the projection matrix from the current viewing position.
@@ -1001,9 +1015,9 @@ def get_proj(self):
         zfront, zback = -self.dist, self.dist
 
         viewM = proj3d.view_transformation(E, R, V)
-        perspM = proj3d.persp_transformation(zfront, zback)
+        projM = self._projection(zfront, zback)
         M0 = np.dot(viewM, worldM)
-        M = np.dot(perspM, M0)
+        M = np.dot(projM, M0)
         return M
 
     def mouse_init(self, rotate_btn=1, zoom_btn=3):
 
@@ -124,6 +124,15 @@ def persp_transformation(zfront, zback):
                      [0,0,-1,0]
                      ])
 
+def ortho_transformation(zfront, zback):
+    a = -(zfront + zback)
+    b = -(zfront - zback)
+    return np.array([[2,0,0,0],
+                     [0,2,0,0],
+                     [0,0,-2,0],
+                     [0,0,a,b]
+                     ])
+
 def proj_transform_vec(vec, M):
     vecw = np.dot(M, vec)
     w = vecw[3]