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Strange surface plot #152
Description
Hi, on my machine, the surface plot seems to have multiple issues. If I run the following code:
#include <arrayfire.h>
int main(int argc, char *argv[])
{
try {
af::info();
af::array X = af::seq(0., 0.4, 0.1);
af::array Y = af::seq(0., 0.9, 0.1);
af::array Z = af::constant(1., 5, 10);
af::Window window(1500, 800, "The door.");
do {
window.surface(X, Y, Z, "The weird surface");
} while(!window.close());
} catch (af::exception& e) {
fprintf(stderr, "%s\n", e.what());
throw;
}
return 0;
}I see the following image (without the red lines):
The image has a few problems:
- The Y-axis labels are all the same.
- The X-axis labels are probably all the same as well.
- The surface is plotted in wrong position and probably scaled badly (hard to say).
System version:
ArrayFire v3.6.0 (OpenCL, 64-bit Linux, build default)
[0] INTEL: Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz, 15930 MB
Linux pine 4.13.11-1-ARCH #1 SMP PREEMPT Thu Nov 2 10:25:56 CET 2017 x86_64 GNU/Linux
Both Forge from devel branch and from arrayfire behave the same, CPU backend as well.
Also when I resize the window, the program crashes with:
Failed to blit
[1] 788 segmentation fault (core dumped) ./a.out
Thank you for your help and for a nice high-performance visualization tool!
Activity
9prady9 commentedon Nov 22, 2017
@FloopCZ We will look into it and update here as soon as we find something. Unfortunately, I can't give an ETA on this, but I will try to look into it as soon as possible.
FloopCZ commentedon Dec 3, 2017
Thank you @9prady9. :-)
9prady9 commentedon Dec 4, 2017
@FloopCZ This seems to be an issue inside ArrayFire while auto-calculating the axes limits. I have raised an issue in the downstream(ArrayFire) project and you can follow its progress over there.
As far as the window crash upon resize, I am unable to replicate this on my end. The window seems to be resizing just fine for me.
As a work around for the render, you can use the following code to explicitly set the chart axes yourselves so that you are not effected by the auto-calculation.
FloopCZ commentedon Dec 8, 2017
@9prady9 Thank you for the workaround, I have just tried it. Unfortunately, the image still has similar problems. This is what I see:
9prady9 commentedon Dec 8, 2017
Looks like transformation is off, I will look into it in forge.
mlloreda commentedon Apr 10, 2018
@9prady9 Am able to reproduce window resize issue on Ubuntu 16.04. Appears to be an issue with glbinding.
9prady9 commentedon Apr 18, 2019
Updates related to fix for auto-calculation of surface limits will be provided on arrayfire/arrayfire#2006 as it is related to arrayfire code base.
Surface transformation issue will be bug handled in this issue.