Adding a vector e.g. .shp file to Leafmap and enable ipywidgets drop down mapping?

[PennyJClarke]

I would like to add vector data from a .shp file, once I initiate adding the first point and the attribute table that pops up, I would like this to pre-populate the columns key from the template .shp (this is already possible) and for value column I would like to create pre-set drop down options to quickly fill the entries.

@giswqs Thank you for suggesting this as a solution to creating drop downs https://stackoverflow.com/questions/72942721/how-to-embed-a-dropdown-ipywidget-in-an-ipysheet-spreadsheet. Could I please seek your advice on how this code can be incorporated with Leafmap. I currently add a template .shp with column names set using the toolbox icon rather than code. I would appreciate any guidance that can be shared. Best wishes, Penny

[giswqs]

You can design you own widget using ipywidget, then construct a WidgetControl to add it to the map. Use ChatGPT for help if needed.

https://ipyleaflet.readthedocs.io/en/latest/controls/widget_control.html

[PennyJClarke]

Thank you so much for your guidance @giswqs, I have managed to create a fully constructed widget control and it is operable and producing a working method to add points with dropdowns. As I understand leafmap / ipyleaflet does not have the capability to edit and delete points using this tool and chatgtp is struggling to help further. If I load a shapefile using the create a vector method, I could delete or edit points using the delete and edit layer icons. I understand these are not linked to the widget control I generate, however, the ability to edit or delete an annotation is important, could you advise on another method to delete or edit points whilst using a widget control? Thank you for your kindness to share your expertise.

[giswqs]

Check out the source code of the edit_vector function. You can create your own draw control and add event handler to it