Begin work on adding 3d support.

Author: isaacrobinson2000

matplotview/_transform_renderer.py

@@ -78,6 +78,10 @@ def __init__(
                 f"Invalid Interpolation Mode: {image_interpolation}"
             )
 
+    @property
+    def bounding_axes(self):
+        return self.__bounding_axes
+
     def _scale_gc(self, gc):
         transfer_transform = self._get_transfer_transform(IdentityTransform())
         new_gc = self.__renderer.new_gc()
@@ -188,6 +192,8 @@ def draw_path(self, gc, path, transform, rgbFace=None):
         # Change the clip to the sub-axes box
         gc.set_clip_rectangle(bbox)
 
+        rgbFace = tuple(rgbFace) if(rgbFace is not None) else None
+
         self.__renderer.draw_path(gc, path, IdentityTransform(), rgbFace)
 
     def _draw_text_as_path(self, gc, x, y, s, prop, angle, ismath):

matplotview/_view_axes.py

@@ -10,7 +10,12 @@
 DEFAULT_RENDER_DEPTH = 5
 
 class BoundRendererArtist:
-    def __init__(self, artist: Artist, renderer: RendererBase, clip_box: Bbox):
+    def __init__(
+        self,
+        artist: Artist,
+        renderer: _TransformRenderer,
+        clip_box: Bbox
+    ):
         self._artist = artist
         self._renderer = renderer
         self._clip_box = clip_box
@@ -34,6 +39,16 @@ def draw(self, renderer: RendererBase):
         full_extents = self._artist.get_window_extent(self._renderer)
         self._artist.set_clip_box(full_extents)
 
+        # If we are working with a 3D object, swap out it's axes with
+        # this zoom axes (swapping out the 3d transform) and reproject it.
+        if(hasattr(self._artist, "do_3d_projection")):
+            ax = self._artist.axes
+            self._artist.axes = None
+            self._artist.axes = self._renderer.bounding_axes
+            self._artist.do_3d_projection()
+            self._artist.axes = None
+            self._artist.axes = ax
+
         # Check and see if the passed limiting box and extents of the
         # artist intersect, if not don't bother drawing this artist.
         if(Bbox.intersection(full_extents, self._clip_box) is not None):

matplotview/tests/test_inset_zoom.py

@@ -104,4 +104,32 @@ def test_plotting_in_view(fig_test, fig_ref):
         "Interesting", (3, 3), (0, 0),
         textcoords="axes fraction", arrowprops=arrow_s
     )
-    ax_ref.indicate_inset_zoom(axins_ref, edgecolor="black")
+    ax_ref.indicate_inset_zoom(axins_ref, edgecolor="black")
+
+
+@check_figures_equal()
+def test_3d_view(fig_test, fig_ref):
+    # The data...
+    X = Y = np.arange(-5, 5, 0.25)
+    X, Y = np.meshgrid(X, Y)
+    Z = np.sin(np.sqrt(X ** 2 + Y ** 2))
+
+    # Test Case...
+    ax1_test, ax2_test = fig_test.subplots(
+        1, 2, subplot_kw=dict(projection="3d")
+    )
+    ax1_test.plot_surface(X, Y, Z)
+    view(ax2_test, ax1_test)
+    ax2_test.set_xlim(-10, 10)
+    ax2_test.set_ylim(-10, 10)
+    ax2_test.set_zlim(-2, 2)
+
+    # Reference
+    ax1_ref, ax2_ref = fig_ref.subplots(
+        1, 2, subplot_kw=dict(projection="3d")
+    )
+    ax1_ref.plot_surface(X, Y, Z)
+    ax2_ref.plot_surface(X, Y, Z)
+    ax2_ref.set_xlim(-10, 10)
+    ax2_ref.set_ylim(-10, 10)
+    ax2_ref.set_zlim(-2, 2)