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test_qt_plotting.py
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test_qt_plotting.py
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import os
import sys
import time
import numpy as np
import pytest
import pyvista
from pyvista import QtInteractor
from pyvista.plotting import system_supports_plotting
NO_PLOTTING = not system_supports_plotting()
try:
import PyQt5
from PyQt5.Qt import (QMainWindow, QFrame, QVBoxLayout, QAction)
has_pyqt5 = True
except:
has_pyqt5 = False
class QMainWindow(object):
pass
class MainWindow(QMainWindow):
def __init__(self, parent=None, show=True):
QMainWindow.__init__(self, parent)
self.frame = QFrame()
vlayout = QVBoxLayout()
self.vtk_widget = QtInteractor(self.frame)
vlayout.addWidget(self.vtk_widget)
self.frame.setLayout(vlayout)
self.setCentralWidget(self.frame)
mainMenu = self.menuBar()
fileMenu = mainMenu.addMenu('File')
exitButton = QAction('Exit', self)
exitButton.setShortcut('Ctrl+Q')
exitButton.triggered.connect(self.close)
fileMenu.addAction(exitButton)
meshMenu = mainMenu.addMenu('Mesh')
self.add_sphere_action = QAction('Add Sphere', self)
self.add_sphere_action.triggered.connect(self.add_sphere)
meshMenu.addAction(self.add_sphere_action)
if show:
self.show()
def add_sphere(self):
sphere = pyvista.Sphere()
self.vtk_widget.add_mesh(sphere)
self.vtk_widget.reset_camera()
@pytest.mark.skipif(NO_PLOTTING, reason="Requires system to support plotting")
@pytest.mark.skipif(not has_pyqt5, reason="requires pyqt5")
def test_qt_interactor(qtbot):
window = MainWindow(show=False)
qtbot.addWidget(window)
window.add_sphere()
assert np.any(window.vtk_widget.mesh.points)
@pytest.mark.skipif(NO_PLOTTING, reason="Requires system to support plotting")
@pytest.mark.skipif(not has_pyqt5, reason="requires pyqt5")
def test_background_plotting_axes_scale(qtbot):
sphere = pyvista.Sphere()
plotter = pyvista.BackgroundPlotter(show=False, title='Testing Window')
plotter.add_mesh(sphere)
assert np.any(plotter.mesh.points)
dlg = plotter.scale_axes_dialog(show=False)
value = 2.0
dlg.x_slider_group.value = value
assert plotter.scale[0] == value
dlg.x_slider_group.spinbox.setValue(-1)
assert dlg.x_slider_group.value == 0
dlg.x_slider_group.spinbox.setValue(1000.0)
assert dlg.x_slider_group.value < 100
plotter._last_update_time = 0.0
plotter.update_app_icon()
assert plotter.quit() is None
@pytest.mark.skipif(NO_PLOTTING, reason="Requires system to support plotting")
@pytest.mark.skipif(not has_pyqt5, reason="requires pyqt5")
def test_background_plotting_camera(qtbot):
plotter = pyvista.BackgroundPlotter(show=False, title='Testing Window')
plotter.add_mesh(pyvista.Sphere())
cpos = [(0.0, 0.0, 1.0), (0.0, 0.0, 0.0), (0.0, 1.0, 0.0)]
plotter.camera_position = cpos
plotter.save_camera_position()
plotter.camera_position = [(0.0, 0.0, 3.0), (0.0, 0.0, 0.0), (0.0, 1.0, 0.0)]
# load existing position
plotter.saved_camera_menu.actions()[0].trigger()
assert plotter.camera_position == cpos
plotter.clear_camera_positions()
assert not len(plotter.saved_camera_menu.actions())
plotter.close()
@pytest.mark.skipif(NO_PLOTTING, reason="Requires system to support plotting")
@pytest.mark.skipif(not has_pyqt5, reason="requires pyqt5")
def test_background_plotter_export_files(qtbot, tmpdir):
plotter = pyvista.BackgroundPlotter(show=False, title='Testing Window')
plotter.add_mesh(pyvista.Sphere())
filename = str(tmpdir.mkdir("tmpdir").join('tmp.png'))
dlg = plotter._qt_screenshot(show=False)
dlg.selectFile(filename)
dlg.accept()
plotter.close()
assert os.path.isfile(filename)
@pytest.mark.skipif(NO_PLOTTING, reason="Requires system to support plotting")
@pytest.mark.skipif(not has_pyqt5, reason="requires pyqt5")
def test_background_plotter_export_vtkjs(qtbot, tmpdir):
plotter = pyvista.BackgroundPlotter(show=False, title='Testing Window')
plotter.add_mesh(pyvista.Sphere())
filename = str(tmpdir.mkdir("tmpdir").join('tmp'))
dlg = plotter._qt_export_vtkjs(show=False)
dlg.selectFile(filename)
dlg.accept()
plotter.close()
assert os.path.isfile(filename + '.vtkjs')
@pytest.mark.skipif(NO_PLOTTING, reason="Requires system to support plotting")
@pytest.mark.skipif(not has_pyqt5, reason="requires pyqt5")
def test_background_plotting_orbit(qtbot):
plotter = pyvista.BackgroundPlotter(show=False, title='Testing Window')
plotter.add_mesh(pyvista.Sphere())
# perfrom the orbit:
plotter.orbit_on_path(bkg=False, step=0.0)
plotter.close()