In our application, we are using the OutSystems Maps component. However, its current implementation does not fully meet our requirements, and modifying the library also proved insufficient, as well as not being future proof.

Our Use Case:

Our application allows customers to draw an arbitrary number of markers and shapes (polygon and polylines) on a map, save these to a database, and later retrieve, edit, or delete them. After reopening the shapes at a later stage, users should also be able to modify or delete them again.

The Challenge:

1. Shape Deletion: While the component works well for     drawing markers and shapes, it lacks a public "delete/remove"     function for shapes (only available for markers).
2. Dynamic Identification: Since shapes are drawn dynamically based on a list, we     cannot reference the WidgetIds of these shapes during runtime, making it     impossible to manage them.
3. Shape Editing: When users edit shapes, the updated coordinates are not     returned, preventing us from saving the modified shapes to the database.

Attempted Solution:

We tried several approaches, but none were successful. Our main idea was to customize the OutSystems Maps library by modifying the "UniqueId" in the Shapes webblocks (polylines/polygons) to accept an input variable. This would allow us to generate WidgetIds dynamically and manage shapes during runtime.

• Implementation details
  • The action "AddEmptyProjectLocation" in the webblock "Step2_Page_ProjectLocation2" is used to      create shapes.
  • We initialize the      map using the action "LeafletMapWidgetMap_Initialized" in the webblock "Step2_Block_LocationLeafletMap2".
  • This approach bypasses reliance on WidgetIds from the widget tree by using custom-generated Ids.

Despite these efforts, the solution did not work, and we are unsure why. We have also tried other solutions, but all of them failed. Our main goal is to be able to be far more dynamic in the drawing and editing of our shapes.

Request:

We are encountering multiple issues that are difficult to explain fully in writing. If the above is unclear or you need additional details, please let us know. We appreciate any guidance you can provide to help us resolve these challenges.

• Does someone know/has ideas how to solve our problem? We have tried the Leaflet Map Forge component, however this component does not support the drawing of markers/shapes yet.

Kind regards,

Alex Ruinen