update docs rotated bbox (#3924)

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Timur Osmanov 4 years ago committed by GitHub
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---
title: 'Annotation with rectangle by 4 points'
linkTitle: 'Annotation with rectangle by 4 points'
weight: 7
---
It is an efficient method of bounding box annotation, proposed
[here](https://arxiv.org/pdf/1708.02750.pdf).
Before starting, you need to make sure that the drawing method by 4 points is selected.
![](/images/image134.jpg)
Press `Shape` or `Track` for entering drawing mode. Click on four extreme points:
the top, bottom, left- and right-most physical points on the object.
Drawing will be automatically completed right after clicking the fourth point.
Press `Esc` to cancel editing.
![](/images/gif016_mapillary_vistas.gif)

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---
title: 'Annotation with rectangles'
linkTitle: 'Annotation with rectangles'
weight: 7
---
To learn more about annotation using a rectangle, see the sections:
- [Shape mode (basics)](/docs/manual/basics/shape-mode-basics/)
- [Track mode (basics)](/docs/manual/basics/track-mode-basics/)
- [Shape mode (advanced)](/docs/manual/advanced/shape-mode-advanced/)
- [Track mode (advanced)](/docs/manual/advanced/track-mode-advanced/)
## Rotation rectangle
To rotate the rectangle, pull on the `rotation point`. Rotation is done around the center of the rectangle.
To rotate at a fixed angle (multiple of 15 degrees),
hold `shift`. In the process of rotation, you can see the angle of rotation.
![](/images/image230.jpg)
## Annotation with rectangle by 4 points
It is an efficient method of bounding box annotation, proposed
[here](https://arxiv.org/pdf/1708.02750.pdf).
Before starting, you need to make sure that the drawing method by 4 points is selected.
![](/images/image134.jpg)
Press `Shape` or `Track` for entering drawing mode. Click on four extreme points:
the top, bottom, left- and right-most physical points on the object.
Drawing will be automatically completed right after clicking the fourth point.
Press `Esc` to cancel editing.
![](/images/gif016_mapillary_vistas.gif)

@ -33,7 +33,7 @@ description: 'Overview of available functions on the controls sidebar of the ann
|-- |-- |-- |
|![](/images/image189.jpg)|`AI Tools`|[AI Tools](/docs/manual/advanced/ai-tools/)|
|![](/images/image201.jpg)|`OpenCV`|[OpenCV](/docs/manual/advanced/opencv-tools/)|
|![](/images/image167.jpg)|`Rectangle`|[Shape mode](/docs/manual/basics/shape-mode-basics/); [Track mode](/docs/manual/basics/track-mode-basics/);<br/> [Drawing by 4 points](/docs/manual/advanced/annotation-with-rectangle-by-4-points/)|
|![](/images/image167.jpg)|`Rectangle`|[Shape mode](/docs/manual/basics/shape-mode-basics/); [Track mode](/docs/manual/basics/track-mode-basics/);<br/> [Drawing by 4 points](/docs/manual/advanced/annotation-with-rectangles/)|
|![](/images/image168.jpg)|`Polygon`|[Annotation with polygons](/docs/manual/advanced/annotation-with-polygons/); [Track mode with polygons](/docs/manual/advanced/annotation-with-polygons/track-mode-with-polygons/)|
|![](/images/image169.jpg)|`Polyline`|[Annotation with polylines](/docs/manual/advanced/annotation-with-polylines/)|
|![](/images/image170.jpg)|`Points`|[Annotation with points](/docs/manual/advanced/annotation-with-points/)|

@ -28,7 +28,7 @@ Usage examples:
![](/images/image011_detrac.jpg)
- To learn about creating a rectangle using the by 4 point drawing method, ([read here](/docs/manual/advanced/annotation-with-rectangle-by-4-points/)).
- To learn more about creating a rectangle [read here](/docs/manual/advanced/annotation-with-rectangles/).
- It is possible to adjust boundaries and location of the rectangle using a mouse.
Rectangle's size is shown in the top right corner , you can check it by clicking on any point of the shape.

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