ahalota / leaflet.draw-extension Goto Github PK

Hi Anika,
Thank you very much for sharing such a great tool🙏🏽 I'm wondering if it is possible to revise it so that it zooms to the uploaded shapefile extent.
Thanks in advance,
Mel

Hi Anika,

Saw this posted to the L.Draw list - very cool!

Regarding this line in your readme - "I really want this to work as an added feature to the Draw control, not needing to be an extended class. Please tell me how to do this if you know!" - I have some advice.

I think there are two ways you can do this pretty easily.

The first is:

1.) wrapping your _addShapefileButton method into an extension of the L.Toolbar class, like L.Draw.Toolbar and L.Edit.Toolbar.
2.) using addInitHook on L.Draw.Control to add another entry to this._toolbars that points to this class.

This technique would be best if you also plan on adding a "export to shapefile" button or something like that.

The second way would be to explicitly set L.DrawToolbar.addToolbar to something like this:

L.DrawToolbar.addToolbar.prototype = function (map) {
var container = L.Toolbar.prototype.addToolbar.call(this, map);
// ... your onAdd logic
return container;
}

This is a bit more hacky, and would break if L.DrawToolbar ever explicitly defines an addToolbar method, but might be easier/faster for you to implement.

In both cases, you'd need to make sure that you add your code after leaflet.draw.src is included but before the draw control is instantiated.

Either way, hope this helps, and good luck!