# WxGUI Vector Digitizer

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This page covers core functionality of wxGUI **vector digitizer** and also explains it's usage for newcomers.

## Adding new features

### Point

Mouse buttons functionality:

- Left
- Add new point on given position

### Line

Mouse buttons functionality:

- Left
- Add new vertex on given position

- Right
- Write out the new line with given number of vertices

- Control+Left
- Remove last added vertex from the line

### Boundary

Mouse buttons functionality:

- Left
- Add new vertex on given position

- Right
- Write out the new boundary with given number of vertices

- Control+Left
- Remove last added vertex from the boundary

### Centroid

Mouse buttons functionality:

- Left
- Add new centroid on given position

### Area

This functionality combines adding new *boundary without category* and optionally *centroid(s) with category* defining new area(s). If the newly added boundary defines an area or two areas on the left and right from the boundary it will also add new centroid(s) which define the newly created area(s).

Mouse buttons functionality:

- Left
- Add new vertex on given position

- Right
- Write out the new boundary with given number of vertices

- Control+Left
- Remove last added vertex from the boundary