Derived classes
Derived classes are new shapes created by combining existing ones. They help you generate useful new elements, like lines, based on the properties of other shapes.
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A centerline is a new line generated in the center of two lines or lanes.
- Select "Centerline" from the list of derived classes.
- Select the two lines for which you wish to create a center line.
- Select the class that the center line should have.
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You can re-select which lines or lanes to generate the centerline from by clicking on the object ID chip and selecting another line in the view.
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Centerline generation is only available in single-frame tasks, for shapes with world-interpolation set to true, and for aggregated lidars and camera sequence tasks.
A lane connection is a derived line that creates a smooth, connecting line between two existing lines or lanes.
- Select "Lane connection" from the list of derived classes.
- Select the two lines for which you wish to create a connection.
- Select the class that the lane connection should have.
The direction of the two lines you want to create a connection between is important. Use the preview of the connection to be generated to view if the new line will look as you expect.
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Lane connection generation is only available in single-frame tasks, for shapes with world-interpolation set to true, and for aggregated lidars and camera sequence tasks.
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