| Object Graphics fonts [message #39682] |
Mon, 07 June 2004 12:27 |
Michael Wallace
Messages: 409
Registered: December 2003
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Senior Member |
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Okay, time for another question from the Object Graphics novice. I have
managed to create some simple 2D histograms which look pretty good,
except I'm not too pleased with the fonts.
First, how do I change the fonts of the labels on an axis? I can easily
change the font of the text annotation for the axis, but I can't seem to
figure out how to easily change the actual labels.
Second, while fonts running horizontally look fine (mostly), fonts
running vertically look like crap. Is there any way to make a vertical
font, say for a Y axis annotation, look like the X axis equivalent but
rotated? Even the horizontal fonts don't look that great if the font
size is too small. Is there any way to remedy this?
Thirdly, I thought I might do better by using PostScript. I ran across
something explaining how to generate EPS using and IDLgrClipboard, but
what about just plain ol' PS? I guess EPS is the way to go, but I don't
know the ins and outs of the file format. I guess you can view the
thing just like other PostScript files?
This might be a dumb question, but if I were to generate a PostScript
file and then use a utility such as the convert program, would the
resulting bitmap (e.g. PNG, GIF) look better than the version IDL would
create by using Write_PNG or Write_GIF with the data from the
IDLgrWindow or IDLgrBuffer? I guess I could try this out and see if it
looks any better, but I'd rather not figure out how to get PostScript to
work if it doesn't make any improvement.
I guess I should have said this at the top, but my specific problem is
that I need to create plots which will be viewable online and so need to
be a GIF, PNG, JPEG or the like. Right now, my code is creating an
IDLgrBuffer, drawing everything, reading the data from the buffer and
sending it on to Write_PNG. It's working without any problem, but some
fonts (vertical, small horizontal) are hard to read. I was hoping that
I could either figure out a better way to handle the IDLgrFonts or save
the files as something like EPS and then convert them.
Ideas? TIA,
-Mike
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