Even in EPS, it's still a bitmap because that's what Render produces. So,
the issue is independent of image format. That old CAD package is just
translating its internal geometry to the format that Postscript uses.
The usual solution is just to render at high resolution. One can use
ImageMagick convert to interpolate down to a lower-resolution, which yields
a brute force antialiasing.
Yes, that will require more memory. I don't use cygwin, but every other
platform on which I have used DX, use just use -memory n, which n is the
number of MB (memory + swap).
There was also a posting the other day (5/18) from Simon Spagnol of AIMS,
concerning trying to output some geometry as vector Postscript.
|---------+---------------------------------------->
| | Allen Nugent |
| | <[EMAIL PROTECTED]> |
| | Sent by: |
| | [EMAIL PROTECTED]|
| | son.ibm.com |
| | |
| | |
| | 05/13/2004 09:34 PM |
| | Please respond to |
| | opendx-users |
| | |
|---------+---------------------------------------->
>-------------------------------------------------------------------------------------------------------|
|
|
| To: [email protected]
|
| cc:
|
| Subject: Re: [opendx-users] hardcopy graphics output
|
|
|
>-------------------------------------------------------------------------------------------------------|
Dear DXplorers,
I am trying to produce nice hardcopies of my visualisations, but I have 2
vexing problems.
First, I keep getting out-of-memory errors (large arena) when I write EPS
files. The large arena is limited to 24 Mb, apparently thanks to cygwin.
However, I don't see why this should happen when writing EPS files of a few
hundred kb (it seldom happened when I wrote MIFF files of 16-frame
sequences using the same net).
I get small-arena out-of-memory errors when I write TIFF files of > 2 Mb,
so that avenue is out.
Second, neither file format yields prints with non-aliased vectors: I still
see the staircase effect. I understand that I can't get enough definition
with TIFF if output file size is limited to 2 Mb, but why do I get this
with EPS? My 11-year-old DOS CAD program produces EPS files with no
aliasing of diagonal lines! (N.B. I have set 'Allow Rendering' and
specified 300 DPI for the EPS files.)
Thanks in advance,
