[metapost] resolution of a metapost graphic

[Yogeshwarsing Calleecharan]

Thanks a lot both Troy and Karel. Very interesting to learn today that 
eps is resolution independent :). I have to submit pictures to a journal 
and it's asking 300 dpi pictures. I thought that this specification 
applied to eps files also.


best regards,
Y.Calleecharan



On 5/6/2010 7:39 PM, Troy Henderson wrote:
> As Karel said, the EPS is a vector graphic so in a sense it has no
> native "resolution" per se.  The graphic has a natural print size, but
> can be scaled to any size you want without losing quality.  The
> "resolution" that you are seeing is the resolution that you get when
> you convert it from vector EPS to a raster format (such as PNG, JPG,
> etc.).  ImageMagick works with raster graphics, so in order for it to
> process an EPS, it must first rasterize it and thus choose a
> resolution to use.
>
> If you do
>
> convert foo.eps foo.png
>
> it uses (by default) 72 pixels per inch to convert the vector EPS to
> raster PNG.  If this is not sufficient, you can try something like
>
> convert -density 300 foo.eps foo.png
>
> This will use 300 pixels per inch (as opposed to the default 72) for
> the conversion, and your resulting PNG will have a larger geometry, a
> larger filesize, and better quality.
>
> Troy Henderson
> --
> http://tug.org/metapost/