2D Polygon

A 2D Polygon is an annotation tool used to draw a closed shape by connecting multiple points or vertices on a 2D plane, typically on an image. It allows you to outline irregular or complex objects with precision by placing a series of points around the object's boundary, making it ideal for objects that don't fit into simple rectangular boxes.

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Create 2D Polygon

1. Click the '+' icon next to the class you want to annotate from the class list.

2. Select '2D Polygon' from the tool list.

3. The cursor pointer turns into a red circle marker while hovering over the image.

4. Click multiple times around the object of interest to define its boundary. Move your mouse to the next desired location, and a line extending from the initial point will dynamically follow the cursor.

   • Each Left-click adds a vertex to the polygon, allowing for a more precise shape.

5. Right-click to close and finalize the polygon.

6. Enter the annotation details.

7. The saved instance will appear in the class list with a 2D icon next to the instance name, indicating it was created in the image sensor.

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Modify 2D Polygon

To modify an existing polygon:

1. Move a vertex: Select a vertex and drag it to a new location.

2. Add a vertex: Hover over an edge of the polygon until a vertex symbol appears, then left-click to insert a new vertex.

3. Delete a vertex: Drag the vertex into an adjacent one to remove it.

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Copy and Paste 2D Polygon

2D Polygon annotations can be copied and pasted to another image sensor where they don't currently exist using Ctrl+C to copy and Ctrl+V to paste. When pasting, an annotation detail prompt will appear for you to enter information. By default, the pasted 2D Polygon will share the same Instance ID as the original copied polygon.