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Ignore div0 errors on masked vertices

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Lines changed: 5 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1183,7 +1183,11 @@ def do_3d_projection(self):`
`1183`	`1183`	`needs_masking = np.any(self._invalid_vertices)`
`1184`	`1184`	`num_faces = len(self._faces)`
`1185`	`1185`	`mask = self._invalid_vertices`
`1186`		`- pfaces = proj3d._proj_transform_vectors(self._faces, self.axes.M)`
	`1186`	`+`
	`1187`	`+ # Some faces might contain masked vertices, so we want to ignore any`
	`1188`	`+ # errors that those might cause`
	`1189`	`+ with np.errstate(invalid='ignore', divide='ignore'):`
	`1190`	`+ pfaces = proj3d._proj_transform_vectors(self._faces, self.axes.M)`
`1187`	`1191`
`1188`	`1192`	`if self._axlim_clip:`
`1189`	`1193`	`viewlim_mask = _viewlim_mask(self._faces[..., 0], self._faces[..., 1],`

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