DRAWEXE only opens a GUI but shows no graphic

[calocedrus]

Switching from pythonocc to OCE is a bit tough without the convenience of pythonocc's QT based graphical interface. I thought that "Draw" which came with OCE could help but while a GUI opens when I launch DRAWEXE, I can't seem to be able to display any graphic.

I've installed OCE with the use of the unix guide.

Lauching CASROOT=/usr/local/share/oce-0.18 DRAWEXE results in the opening of this frame: I can then pload ALL:

~/Programs/OCE/oce_0p18p1/build$ CASROOT=/usr/local/share/oce-0.18 DRAWEXE
Draw[1]> Draw[2]> pload ALL
1
Draw[3]>

But then any choice in any of the dropdown menu from the above GUI frame has no action or result in the following message in my terminal window:

bgerror failed to handle background error.
    Original error: no files matched glob pattern "*"
    Error in bgerror:

Is there anything in particular to setup so that plots can appear? Some references I've used to try to solve the issue myself: https://github.com/tpaviot/oce/issues/626 https://dev.opencascade.org/doc/overview/html/occt_user_guides__test_harness.html

[aothms]

Did you try mu in the TCL console? You can use restore <path> to load a OCC BRep file and fit to fit it in view.

[calocedrus]

Thanks for your reply. I can't explain what happened so that I couldn't see anything. Now if I chose Views -> mu4, 4 different windows open, and I can then select a shape and plot it.

For any user wanting to do a "harness test", here's what to do: Launch the executable DRAWEXE In the GUI that opened, menu Load > pload ALL In menu Views , select any option (mu4 shows 4 different views of the XYZ axis). Then select an object to plot using Curves or Surfaces. Below is the example of a torus.