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Re: character size in normal coordinates [message #13617 is a reply to message #13616] Mon, 23 November 1998 00:00 Go to previous messageGo to previous message
David Foster is currently offline  David Foster
Messages: 341
Registered: January 1996
Senior Member
Axel Schweiger wrote:
>
> How does one convert the character size into normal coordinates.
> --
> #----------------------------------------------------------- ------------------
> # Axel Schweiger

Since !D.[X|Y]_CH_SIZE give the width and height of the rectangle
that encloses the "average" character in the current font, in
device units (usually pixels) [from the Online help on !D]:

x_ch_norm = !D.X_CH_SIZE / !D.X_SIZE
y_ch_norm = !D.Y_CH_SIZE / !D.Y_SIZE

would be my guess. If your window is 100 pixels wide, and your
object is 50 pixels wide, then in normalized coordinates that
would be .5 . Or am I having a bad hair day?

Dave
--

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
David S. Foster Univ. of California, San Diego
Programmer/Analyst Brain Image Analysis Laboratory
foster@bial1.ucsd.edu Department of Psychiatry
(619) 622-5892 8950 Via La Jolla Drive, Suite 2240
La Jolla, CA 92037
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
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