def _create_data_source(metadata):
"""Creates a data source and adds it to the mayavi engine given
metadata of the source. Returns the created source.
"""
factory = metadata.get_callable()
src = factory()
engine = tools.get_engine()
engine.add_source(src)
return src
def open(filename, figure=None):
"""Open a supported data file given a filename. Returns the source
object if a suitable reader was found for the file.
"""
if figure is None:
engine = tools.get_engine()
else:
engine = engine_manager.find_figure_engine(figure)
engine.current_scene = figure
src = engine.open(filename)
return src
def open(filename, figure=None):
"""Open a supported data file given a filename. Returns the source
object if a suitable reader was found for the file.
If 'figure' is False, no view is opened, and the code does not need
GUI or openGL context.
"""
if figure is None:
engine = tools.get_engine()
elif figure is False:
# Get a null engine that we can use.
engine = get_null_engine()
else:
engine = engine_manager.find_figure_engine(figure)
engine.current_scene = figure
src = engine.open(filename)
return src
