I created a perfectly round 1500 x 1500 px circle, selected it and then attempted to Export (Selection) to Bitmap.

The export bitmap dialog box shows the following:

width: 1494.002 px
height: 1506.177 px

I have been using inkscape for years and frequently export circles,and I seem to recall the png files have a bit missing on the sides, but my circles are so small when I print them, it's not really noticeable.

Today, I noticed! It's really bugging me and there is absolutely no way to tweak the settings in the export bitmap dialog box to correct for this. When I try, it switches to "custom" and I get a weird png file.

Why is inkscape not using the actual dimensions of the selected object?

This is driving me nuts!

I

normally, inkscape does export the actual dimensions if you export selected object(s). maybe you should doublecheck your setup? or attach the .svg file to your post? created and exported a 1500px circle as "selected" and "custom" and had no problems exporting as 1500px png so far running 0.48.3.1 on unix.

I cannot duplicate the problem. Export is ok here.

Inkscape 0.48.4 r9939 (WinXP)

Hi.

Maybe you added a stroke to the object originally an ellipse with different width and height values that you scaled later on to be a circle,
but you didn't choose the right setting under the inkscape preferences panel (Shift+Ctrl+P) transformation section.
Set optimised.
http://tavmjong.free.fr/INKSCAPE/MANUAL/html/Customize-Preferences.html