ImageEditor: RadBitmap.Rotate method changes the bitmap size when invoked with angles different than 90, 180, 270 and 360

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Last Updated: 10 Aug 2026 14:04 by ADMIN

ADMIN

Todor

Created on: 11 May 2015 10:33

Category: ImageEditor

Type: Bug Report

ImageEditor: RadBitmap.Rotate method changes the bitmap size when invoked with angles different than 90, 180, 270 and 360

When a RadBitmap is rotated to degrees for which sine and cosine are not integers (every angle which is not 90, 180, 270 or 360) applies wrongly calculated transformations and the bitmap' size is no longer correct.

For example, rotating a bitmap to -30 and then to 30 degrees changes its size.

1 comment

ADMIN

Martin Ivanov

Posted on: 10 Aug 2026 13:43

This behavior was originally reported over 11 years ago and has not received significant demand or follow-up from the community since then. This is why we plan to prioritize more impactful and widely requested improvements.

If this limitation is still affecting your scenario, please share additional context or use cases. This will help us better assess the severity and reconsider prioritization in the future. Thank you!

Regards,
Martin Ivanov
Progress Telerik

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