| Re: How to control plotting region when using !p.multi & X11 ??? [message #4575] |
Wed, 07 June 1995 00:00 |
sterner
Messages: 106
Registered: February 1991
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Senior Member |
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mcarter@lanl.gov (Michael J. Carter) writes:
> Why is text 'drawn' at (0.0, 1.0) not displayed on an 'X' display but
> comes out fine using 'PS'??? Bringing it down to (0.0, 0.98) works
> but then the title of my plot is garbled by the text because the title
> is drawn right at the top. The POSITION keyword is a fix for 1
> plot/page, but screws up the use of !p.multi.
I assume you are are talking about normalized coordinates. Here is the
reason. Normalized coordinates are stated to range from 0 to 1 along
each dimension of the graphics window. Actually they do not quite
reach 1. For example, a 640 x 512 screen window has normalized
coordinates of (.998438, .998047) at the upper right corner. The
coordinates (1,1) actually apply to the first pixel beyond this
corner. 639./640 is 0.998438, and 511./512 is 0.998047.
Things are slightly different for PostScript. There the graphics
window has some margin around it on the page, so normalized coordinates
outside the range 0 to 1 actually work.
Ray Sterner sterner@tesla.jhuapl.edu
The Johns Hopkins University North latitude 39.16 degrees.
Applied Physics Laboratory West longitude 76.90 degrees.
Laurel, MD 20723-6099
WWW Home page: ftp://fermi.jhuapl.edu/www/s1r/people/res/res.html
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