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Merge branch 'webgui_without_ipywidgets' into 'master'

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allow webgui also without ipywidgets installed

See merge request ngsolve/netgen!609
This commit is contained in:
Hochsteger, Matthias 2023-10-18 10:41:50 +02:00
commit 1f218835df
1 changed files with 22 additions and 7 deletions
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25
python/webgui.py
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@ -3,15 +3,30 @@ import numpy as np
from time import time from time import time
import os import os
try:
import webgui_jupyter_widgets import webgui_jupyter_widgets
from webgui_jupyter_widgets import BaseWebGuiScene, encodeData, WebGuiDocuWidget from webgui_jupyter_widgets import BaseWebGuiScene, WebGuiDocuWidget
import webgui_jupyter_widgets.widget as wg import webgui_jupyter_widgets.widget as wg
except ImportError:
wg = None
def encodeData( data, dtype=None, encoding='b64' ):
import numpy as np
from base64 import b64encode
dtype = dtype or data.dtype
values = np.array(data.flatten(), dtype=dtype)
if encoding=='b64':
return b64encode(values).decode("ascii")
elif encoding=='binary':
return values.tobytes()
else:
raise RuntimeError("unknown encoding" + str(encoding))
from packaging.version import parse from packaging.version import parse
import netgen.meshing as ng import netgen.meshing as ng
if parse(webgui_jupyter_widgets.__version__) >= parse("0.2.18"): if wg is not None and parse(webgui_jupyter_widgets.__version__) >= parse("0.2.18"):
_default_width = None _default_width = None
_default_height = None _default_height = None
else: else:
@ -199,8 +214,8 @@ def GetData(mesh, args, kwargs):
d[name] = pnew d[name] = pnew
return d return d
base = object if wg is None else BaseWebGuiScene
class WebGLScene(BaseWebGuiScene): class WebGLScene(base):
def __init__(self, obj, args=[], kwargs={}): def __init__(self, obj, args=[], kwargs={}):
self.obj = obj self.obj = obj
self.args = args self.args = args
@ -351,7 +366,7 @@ def Draw(obj, *args, **kwargs):
kwargs_with_defaults.update(kwargs) kwargs_with_defaults.update(kwargs)
scene = WebGLScene(obj, args, kwargs_with_defaults) scene = WebGLScene(obj, args, kwargs_with_defaults)
if wg._IN_IPYTHON: if wg is not None and wg._IN_IPYTHON:
if wg._IN_GOOGLE_COLAB: if wg._IN_GOOGLE_COLAB:
from IPython.display import display, HTML from IPython.display import display, HTML