Graphics

[Andrew Dabrowski]

In the hope that I wouldn't have to read the entire 700+ page OpenGL manual I tried the running the flexi-line-auto.pure demo mentioned at https://agraef.github.io/pure-docs/pure-gl.html.  I ran

pure flexi-line-auto.pure

and absolutely nothing happened: the command exited without errors and without producing any graphics.  Any ideas?

I'll also note that on the page

https://agraef.github.io/pure-docs/#gui-and-graphics

the link to the pure-g2 website is broken.

What I would like to do is make simple images from matrices, along the lines of Mathematica's ArrayPlot  command.  Are there any examples in Pure I might find helpful?

[Andrew Dabrowski]

Sorry, I should have said the link on

https://agraef.github.io/pure-docs/pure-g2.html

to http://g2.sf.net/ is broken.

[Albert Graef]

On Thu, Jan 11, 2018 at 6:06 PM, Andrew Dabrowski <unhan...@gmail.com> wrote:

In the hope that I wouldn't have to read the entire 700+ page OpenGL manual I tried the running the flexi-line-auto.pure demo mentioned at https://agraef.github.io/pure-docs/pure-gl.html.  I ran

pure flexi-line-auto.pure

and absolutely nothing happened: the command exited without errors and without producing any graphics.  Any ideas?

Click somewhere in the OpenGL window. :)

What I would like to do is make simple images from matrices, along the lines of Mathematica's ArrayPlot  command.  Are there any examples in Pure I might find helpful?

Have you tried pure-gplot? https://github.com/agraef/pure-lang/tree/master/pure-gplot Example: gplot_test.pure

There's also a more elaborate interface to gnuplot via octave: https://github.com/agraef/pure-lang/tree/master/pure-octave Example: plot_demo.pure

Caveat: The Octave embed interface used by pure-octave is completely broken in Octave 4.2. Use an earlier version instead. The current development version (4.3, available as octave-hg in the AUR if you're running Arch Linux) should work, too.

--

Dr. Albert Gr"af
Computer Music Research Group, JGU Mainz, Germany
Email:  agg...@gmail.com
WWW:    https://plus.google.com/+AlbertGraef

[Albert Graef]

Thanks for the heads-up, I just fixed this in the README, it will show in the online docs next time I regenerate these.

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[Andrew Dabrowski]

On 01/11/2018 08:04 PM, Albert Graef wrote:

On Thu, Jan 11, 2018 at 6:06 PM, Andrew Dabrowski <unhan...@gmail.com> wrote:

In the hope that I wouldn't have to read the entire 700+ page OpenGL manual I tried the running the flexi-line-auto.pure demo mentioned at https://agraef.github.io/pure-docs/pure-gl.html.  I ran

pure flexi-line-auto.pure

and absolutely nothing happened: the command exited without errors and without producing any graphics.  Any ideas?

There is no such window visible.

Click somewhere in the OpenGL window. :)

What I would like to do is make simple images from matrices, along the lines of Mathematica's ArrayPlot  command.  Are there any examples in Pure I might find helpful?

Have you tried pure-gplot? https://github.com/agraef/pure-lang/tree/master/pure-gplot Example: gplot_test.pure

I can't get it to work. the gplot command I need is

plot <data> matrix with image

So with my matrix in the variable mat, I run:

> let gp = gplot::open "gnuplot";

> gplot::plot gp mat matrix with image;

<stdin>, line 49: syntax error, unexpected ';', expecting '=' or '|'

Maybe some of the command has to be quoted?

> gplot::plot gp mat "matrix with image";

()

> 

gnuplot> e

         ^

         line 0: invalid command

It doesn't help that the usage notes at

https://github.com/agraef/pure-lang/blob/master/pure-gplot/gplot.pure

are truncated on the right.

There's also a more elaborate interface to gnuplot via octave: https://github.com/agraef/pure-lang/tree/master/pure-octave Example: plot_demo.pure

Caveat: The Octave embed interface used by pure-octave is completely broken in Octave 4.2. Use an earlier version instead. The current development version (4.3, available as octave-hg in the AUR if you're running Arch Linux) should work, too.

--

Dr. Albert Gr"af
Computer Music Research Group, JGU Mainz, Germany
Email:  agg...@gmail.com
WWW:    https://plus.google.com/+AlbertGraef

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[Albert Graef]

On Fri, Jan 12, 2018 at 4:59 AM, Andrew Dabrowski <unhan...@gmail.com> wrote:

There is no such window visible.

Works fine over here on Linux. What about the teapot.pure example? If that doesn't map a window either then something's wrong -- please submit a bug report with all the requisite information.

Maybe some of the command has to be quoted?

Yes, basically everything that comes after "plot" AFAICT. But I didn't write the thing, so I'm not sure how it works. Kay-Uwe Kirstein, still lurking here? Can you help?

It doesn't help that the usage notes at

https://github.com/agraef/pure-lang/blob/master/pure-gplot/gplot.pure

are truncated on the right.

Pull requests are appreciated.

Albert