From 2423cba45ad01410664dd6f675d916d25376f061 Mon Sep 17 00:00:00 2001 From: Importance of Being Ernest Date: Fri, 15 Dec 2017 00:45:38 +0100 Subject: [PATCH] Allow rasterization for 3D plots 3D plots do not allow for rasterization. It seems this is only due to the missing decorator (`@allow_rasterization`) of the respecive `draw` methods. In this patch I'm adding the decorator to all draw methods in `art3d.py` to see what happens. This would allow to rasterize 3D objects, like ``` from mpl_toolkits.mplot3d import Axes3D import matplotlib.pyplot as plt import numpy as np fig = plt.figure() ax = fig.gca(projection=Axes3D.name) x = np.arange(-5, 5, 0.25) X, Y = np.meshgrid(x, x) Z = np.sin(np.sqrt(X**2 + Y**2)) surf = ax.plot_surface(X, Y, Z, cmap="coolwarm", linewidth=0, antialiased=True) surf.set_rasterized(True) plt.savefig("rasterizedsurface.pdf") plt.show() ``` resulting in (screenshot from pdf): --- lib/mpl_toolkits/mplot3d/art3d.py | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/mpl_toolkits/mplot3d/art3d.py b/lib/mpl_toolkits/mplot3d/art3d.py index 3e9785813210..67be03dba347 100644 --- a/lib/mpl_toolkits/mplot3d/art3d.py +++ b/lib/mpl_toolkits/mplot3d/art3d.py @@ -22,6 +22,7 @@ from matplotlib.patches import Patch from matplotlib.colors import Normalize from matplotlib.cbook import iterable +from matplotlib.artist import allow_rasterization import warnings import numpy as np @@ -82,6 +83,7 @@ def set_3d_properties(self, z=0, zdir='z'): self._dir_vec = get_dir_vector(zdir) self.stale = True + @allow_rasterization def draw(self, renderer): proj = proj3d.proj_trans_points([self._position3d, \ self._position3d + self._dir_vec], renderer.M) @@ -130,6 +132,7 @@ def set_3d_properties(self, zs=0, zdir='z'): self._verts3d = juggle_axes(xs, ys, zs, zdir) self.stale = True + @allow_rasterization def draw(self, renderer): xs3d, ys3d, zs3d = self._verts3d xs, ys, zs = proj3d.proj_transform(xs3d, ys3d, zs3d, renderer.M) @@ -235,6 +238,7 @@ def do_3d_projection(self, renderer): minz = min(minz, min(zs)) return minz + @allow_rasterization def draw(self, renderer, project=False): if project: self.do_3d_projection(renderer) @@ -280,6 +284,7 @@ def do_3d_projection(self, renderer): self._facecolor2d = self._facecolor3d return min(vzs) + @allow_rasterization def draw(self, renderer): Patch.draw(self, renderer) @@ -706,6 +711,7 @@ def get_edgecolors(self): return self._edgecolors2d get_edgecolor = get_edgecolors + @allow_rasterization def draw(self, renderer): return Collection.draw(self, renderer) pFad - Phonifier reborn

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