mirror of
https://github.com/NGSolve/netgen.git
synced 2024-09-22 17:52:50 +05:00
68 lines
2.1 KiB
Python
68 lines
2.1 KiB
Python
import netgen
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from . import libngguipy
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from . import libngpy
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def StartGUI():
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from tkinter import Tk
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from netgen import config
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import sys, os
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try:
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# the GUI tries to load ngsolve.tcl (which loads ngsolve shared libraries)
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# BUT might fail to load dependencies (like mkl), these are handled by the
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# ngsolve __init__.py script, so import ngsolve from python already here
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import ngsolve
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except:
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pass
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global win
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win = Tk()
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win.tk.eval('lappend ::auto_path ' + netgen._netgen_lib_dir)
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win.tk.eval('lappend ::auto_path ' + netgen._netgen_bin_dir)
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# load with absolute path to avoid issues on MacOS
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win.tk.eval('load "'+netgen._netgen_lib_dir.replace('\\','/')+'/libnggui[info sharedlibextension]" gui')
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if config.is_python_package and 'darwin' in sys.platform:
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# libngsolve and other libraries are installed into netgen python dir to keep relative installation paths, but tcl won't find them there automatically
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netgen_dir = os.path.abspath(os.path.dirname(netgen.__file__))
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win.tk.eval(f'set netgen_library_dir {netgen_dir}')
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win.tk.eval( netgen.libngpy._meshing._ngscript)
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try:
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from IPython import get_ipython
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ipython = get_ipython()
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ipython.magic('gui tk')
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except:
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pass
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def _Redraw(*args, **kwargs):
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if libngpy._meshing._Redraw(*args, **kwargs):
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import netgen
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import tkinter
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cnt = 0
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while(win.tk.dooneevent(tkinter._tkinter.DONT_WAIT) and cnt < 100):
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cnt += 1
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netgen._Redraw = _Redraw
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_Redraw(blocking=True)
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if not netgen.libngpy._meshing._netgen_executable_started:
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import os
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if not "NETGEN_DOCUMENTATION_RST_FORMAT" in os.environ:
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StartGUI()
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def Snapshot(w,h, filename=None):
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netgen.Redraw(blocking=True)
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import numpy
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image = netgen.libngpy.Snapshot(w, h)
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image = numpy.array(image, dtype=numpy.uint8).reshape(h, w, 3)
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image = image[::-1,:,:]
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if filename:
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import PIL.Image
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im = PIL.Image.fromarray(image)
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im.save(filename)
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return image
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