How to: rotate an ellipse

[goldrian]

I need to draw rotated ellipses on a jpg image using GdPicture7.
I see that there is a GdPictureImaging.DrawRotatedRectangle method, but not an equivalent one for ellipses.
Any idea to achieve it?
Thanks!

[goldrian]

Meanwhile I've tried using arcs, beziers... no way.
I can create a new image, draw an ellipse on it, rotate the image and publish the image on the other, but performance is too low.
I'm starting to think that it's not possible: panic!

[Loïc]

Hi,

You have 2 options:

- 1 drawing the ellipse on an empty bitmap, rotate the image by specific angle then merge your 2 images (as you said, this is slow)
- 2 using GDI+. You can get a graphics object from a gdpicture image using the GetGraphicsFromGdPictureImage. Use GDI+ to draw your stuff on the graphics object, the dispose it.
- And 3 (not yet implemented). We will add a drawrotatedellipse function on the next release for convenience.

Kind regards,

Loïc

[goldrian]

Thank you Loic, I used the second method you suggested.
Thank you!