GDI Graphics are Imprecise

[existential.philosophy]

When I use standard GDI graphics methods, like DrawRectangle or
FillEllipse, I've noticed that the results are slightly off.

I seldom work with graphics, but I'm doing a project now which
requires me to draw precise shapes. I've discovered that, in order to
get crisp results, I have to "nudge" the coordinates. For instance,
instead of drawing a rectangle with

DrawRectangle(Pen1, X, Y, Width, Height)

I must use

DrawRectangle(Pen1, X + 0.001953, Y + 0.001953, Width, Height)

Is anyone familiar with this issue? I'm guessing it is a problem with
Windows (I'm using Windows XP Pro), but I'd like to learn more.


-TC

 

[Herfried K. Wagner [MVP]]

When I use standard GDI graphics methods, like DrawRectangle or
FillEllipse, I've noticed that the results are slightly off.

No need to repost -- the same question posted by you yesterday got two
replies in the meantime.

 

[existential.philosophy]

No need to repost -- the same question posted by you yesterday got two
replies in the meantime.

This is, of course, an unintentional double-post. The original post is
at: http://groups.google.com/group/micr...ages.vb/browse_thread/thread/ab270c538fc5d996

-TC