Tap Tool Multiple Select

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1 
def graph_scatter(self, df, df_coord, update_data):

   scatter_source = ColumnDataSource(self.create_scatter_source(df, df_coord, ['Location']))

   # create map
   map_options = GMapOptions(lat=39.82, lng=-98.57, map_type="roadmap", zoom=4)

   scatter = GMapPlot(plot_width=1200, plot_height=800,
     x_range=DataRange1d(), y_range=DataRange1d(), map_options=map_options,
     api_key='#########################'
   )

   circle_unselected = Circle(x='lon', y='lat', size='diameter', fill_color='Blue', fill_alpha=0.6, line_color='color',name = "circle")
   circle = Circle(x='lon', y='lat', size='diameter', fill_color='color', fill_alpha=0.6, line_color='color',name = "circle")

   
   if(update_data != None):

  df = df.loc[df['Location'].isin(update_data)]

     df_unselected = df.loc[-df['Location'].isin(update_data)]
     scatter_source_unselected = ColumnDataSource(self.create_scatter_source(df_unselected, df_coord, ['Location']))
     scatter.add_glyph(scatter_source_unselected, circle_deselected, name="circle")
   r = scatter.add_glyph(scatter_source, circle,name="circle")

   return scatter, r

graph,r  = make_graph(df,df_coord,None)
show(graph)

#when a circle is clicked on go to update
r.data_source.on_change('selected',update)
···

update(attr, old, new):
#creates a list of adjacent circles and sends it to graph_scatter

   graph_scatter(self, df, df_coord, update_data)

``

The problem that I’m having is that the graph isn’t updating. Is there a way to select multiple glyphs instead of just the one that is clicked on?

2

Hi,

I'm not really sure what you are trying to accomplish, maybe you can briefly describe your intent in plain language? I will say that it is often much better to *update* a data source, by setting its .data attrbute, rather than *replacing* a data source entirely. All of the examples, etc. demonstrate this technique.

Thanks,

Bryan

···

On Dec 9, 2016, at 12:32 PM, Rob Pritchard <[email protected]> wrote:

def graph_scatter(self, df, df_coord, update_data):

   scatter_source = ColumnDataSource(self.create_scatter_source(df, df_coord, ['Location']))

   # create map
   map_options = GMapOptions(lat=39.82, lng=-98.57, map_type="roadmap", zoom=4)

   scatter = GMapPlot(plot_width=1200, plot_height=800,
     x_range=DataRange1d(), y_range=DataRange1d(), map_options=map_options,
     api_key='#########################'
   )

   circle_unselected = Circle(x='lon', y='lat', size='diameter', fill_color='Blue', fill_alpha=0.6, line_color='color',name = "circle")
   circle = Circle(x='lon', y='lat', size='diameter', fill_color='color', fill_alpha=0.6, line_color='color',name = "circle")

   if(update_data != None):

      df = df.loc[df['Location'].isin(update_data)]
     df_unselected = df.loc[-df['Location'].isin(update_data)]
     scatter_source_unselected = ColumnDataSource(self.create_scatter_source(df_unselected, df_coord, ['Location']))
     scatter.add_glyph(scatter_source_unselected, circle_deselected, name="circle")
   r = scatter.add_glyph(scatter_source, circle,name="circle")

   return scatter, r

graph,r = make_graph(df,df_coord,None)
show(graph)

#when a circle is clicked on go to update
r.data_source.on_change('selected',update)

#
update(attr, old, new):
   #creates a list of adjacent circles and sends it to graph_scatter
   graph_scatter(self, df, df_coord, update_data)

The problem that I'm having is that the graph isn't updating. Is there a way to select multiple glyphs instead of just the one that is clicked on?

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