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There is no way for the split tool to match the selection tools abilities to select / refine the selection and otherwise stage features for the split operation.
This is especially true in environments with a wider range of selection tools (select by highlighter, select by point, etc...).
With that in mind this task is to change the selection tool over to the "Selection Split workflow".
This approach has clear responsibilities:
- User establishes the selected features using a combination of selection tools and the table view
- Split tool focused on just establishing the user input needed in order to kick off the split operation.
Using split for multi-points:
- Allow split tool to "mark" points by clicking or drawing a box
- Important: Any visual feedback needs to be using the correct marking colour - to prevent confusion with bbox selection
- Clicking will cycle through the available marking options
- Points in a MultiPoint are considered as individual parts and may be cycled independently
- The cycle always has one more available colour then is currently in use to allow users to split a feature into 3 or 4 parts as required
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