From: Matt Gushee <mgushee@havenrock.com>
To: caml-list@inria.fr
Subject: Solved (was Re: [Caml-list] OCamlplot puzzle)
Date: Mon, 23 Dec 2002 11:02:06 -0700 [thread overview]
Message-ID: <20021223180206.GB32693@swordfish> (raw)
In-Reply-To: <20021223085430.GA32693@swordfish>
On Mon, Dec 23, 2002 at 01:54:30AM -0700, Matt Gushee wrote:
>
> I am trying to learn the OCamlplot API, and as a first step I have
> written a simple program that is supposed to generate a PNG image with a
> single colored rectangle (see code below). Well, the output is indeed a
> PNG image, but there is no colored rectangle; the image is just solid
> white. And apparently the image's colorspace is a 1-bit grayscale:
Apparently I was missing a call to Plot.space or Plot.fspace, e.g.
....
> Plot.openpl pl;
Plot.fspace pl 0. 0. 500. 400.;
I didn't (and still don't) know what x- and y-values are reasonable for
this function, and wasn't sure it was necessary. But apparently it is.
--
Matt Gushee When a nation follows the Way,
Englewood, Colorado, USA Horses bear manure through
mgushee@havenrock.com its fields;
http://www.havenrock.com/ When a nation ignores the Way,
Horses bear soldiers through
its streets.
--Lao Tzu (Peter Merel, trans.)
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prev parent reply other threads:[~2002-12-23 18:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-23 8:54 [Caml-list] OCamlplot puzzle Matt Gushee
2002-12-23 18:02 ` Matt Gushee [this message]
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