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Re: Device's bits_per_pixel keyword [message #13516 is a reply to message #13455]

Fri, 13 November 1998 00:00

thompson
Messages: 584
Registered: August 1991

Senior Member

Harald Frey <hfrey@ssl.berkeley.edu> writes:

> bits_per_pixel has nothing to do with the size of the PS output, it is
> just the number of bits that is adjusted to each pixel and allows
> display in black/white or in any of 255 grey-levels. You have to use the
> xsize and ysize keywords.

> set_plot,'ps'
> device,xsize=15.,ysize=15.,xoffset=3.,yoffset=5.,scale_facto r=1.,bits=8,/color

> .
> .
> device,/close

I think there's some confusion over the word "size" here. The above commands
will affect the size of the plot on the page, but will have no effect on how
much disk space the file takes up. BITS_PER_PIXEL does have an effect on the
file size, but only for greyscale rendering, as discussed in my previous
posting.

William Thompson

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[Message index]

		Device's bits_per_pixel keyword By: Charles Cavanaugh on Wed, 11 November 1998 00:00
		Re: Device's bits_per_pixel keyword By: thompson on Fri, 13 November 1998 00:00
		Re: Device's bits_per_pixel keyword By: thompson on Fri, 13 November 1998 00:00

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