Add initial implementation of Jupyter Vispy volume exporter.

glue_plotly/html_exporters/jupyter/vispy_volume3d.py

@@ -0,0 +1,43 @@
+from glue.config import viewer_tool
+from glue_vispy_viewers.scatter.layer_artist import ScatterLayerArtist
+
+from glue_plotly.common.base_3d import layout_config
+from glue_plotly.common.common import data_count, layers_to_export
+from glue_plotly.common.scatter3d import traces_for_layer as scatter3d_traces_for_layer
+from glue_plotly.common.volume import traces_for_layer as volume_traces_for_layer
+from glue_plotly.jupyter_base_export_tool import JupyterBaseExportTool
+
+import plotly.graph_objs as go
+from plotly.offline import plot
+
+
+@viewer_tool
+class PlotlyScatter3DStaticExport(JupyterBaseExportTool):
+    tool_id = 'save:jupyter_plotly3dvolume'
+
+    def save_figure(self, filepath):
+
+        if not filepath:
+            return
+
+        config = layout_config(self.viewer.state)
+        layout = go.Layout(**config)
+        fig = go.Figure(layout=layout)
+
+        layers = layers_to_export(self.viewer)
+        add_data_label = data_count(layers) > 1
+        bounds = self.viewer._vispy_widget._multivol._data_bounds
+        count = 5
+        for layer in layers:
+            if isinstance(layer, ScatterLayerArtist):
+                traces = scatter3d_traces_for_layer(self.viewer.state, layer.state,
+                                                    add_data_label=add_data_label)
+            else:
+                traces = volume_traces_for_layer(self.viewer.state, layer.state, bounds,
+                                                 isosurface_count=count,
+                                                 add_data_label=add_data_label)
+
+            for trace in traces:
+                fig.add_trace(trace)
+
+        plot(fig, filename=filepath, auto_open=False)