Polygon annotation with add/remove points

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Valentin Marteau

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Mar 12, 2021, 6:27:27 PM3/12/21
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Hello,

Is there a possibility to add / remove points once a polygon annotation has been drawn?

Thanks and best regards,
Valentin

Anthony Chen

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Mar 15, 2021, 1:56:10 PM3/15/21
to PDFTron WebViewer

Hi Valentin,

You can use the "getPath" API on the annotation to get the array of points ( https://www.pdftron.com/api/web/Annotations.PolygonAnnotation.html#getPath__anchor ).
If you modify the array ( push, slice, etc), it will affect the annotation.

Alternatively, you can also use the "addPoint" , "popPath", and "setPathPoint" to manipulate the path ( https://www.pdftron.com/api/web/Annotations.PolygonAnnotation.html ).

Anthony
Software Developer
PDFTron Systems, Inc.

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