Re^2: which function in PDL can do the same thing as matlab pcolor?

for example,

 
$t = sequence(10)+1;
$x = log($t)->dummy(1,10);
$y = ($t**2)->dummy(0,10);

$x = $x + $y/10;

$z = $x+$y;

now I want generate a figure like pcolor($x,$y,$z);
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Re^3: which function in PDL can do the same thing as matlab pcolor? by swl (Prior) on Dec 14, 2019 at 22:22 UTC
It works for me, insofar as I understand your question. When I run `imag($z)` I see a two dimensional plot with light values at the top and dark values at the bottom. This is all run in the pdl2 shell under Strawberry Perl 5.30.0 (PDL version, via its portableshell.bat). `use PDL::Graphics::Simple; $t = sequence(10)+1; $x = log($t)->dummy(1,10); $y = ($t**2)->dummy(0,10); $x = $x + $y/10; $z = $x+$y; imag($z);` [download] Some caveats are that I had to force install PDL::Graphics::Simple due to a failing test, and that the plot window seems to hang. Closing the plot window kills the pdl2 shell, but you can interact with the shell while the plot is open.	[reply] [d/l] [select]
Re^4: which function in PDL can do the same thing as matlab pcolor? by etj (Priest) on Apr 25, 2022 at 11:09 UTC
I can reproduce this and have opened https://github.com/PDLPorters/PDL-Graphics-Gnuplot/issues/89.	[reply]
Re^3: which function in PDL can do the same thing as matlab pcolor? by etj (Priest) on Apr 25, 2022 at 11:24 UTC
This works for me on both Linux and latest PDL with Strawberry Perl, albeit using an actual 3D Z-axis rather than colours: `use PDL::Graphics::TriD; $t = sequence(10)+1; $x = log($t)->dummy(1,10); $y = ($t**2)->dummy(0,10); $x = $x + $y/10; $z = $x+$y; points3d [$x,$y,$z];` [download]	[reply] [d/l]