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Diffstat (limited to 'src/silx/test/test_sx.py')
| -rw-r--r-- | src/silx/test/test_sx.py | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/src/silx/test/test_sx.py b/src/silx/test/test_sx.py new file mode 100644 index 0000000..9836285 --- /dev/null +++ b/src/silx/test/test_sx.py @@ -0,0 +1,265 @@ +# coding: utf-8 +# /*########################################################################## +# +# Copyright (c) 2016-2019 European Synchrotron Radiation Facility +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. +# +# ###########################################################################*/ +__authors__ = ["T. Vincent", "P. Knobel"] +__license__ = "MIT" +__date__ = "06/11/2018" + + +import numpy +import pytest + +from silx.gui import qt +from silx.gui.colors import rgba +from silx.gui.colors import Colormap + + +@pytest.fixture(scope="module") +def sx(qapp): + """Lazy loading to avoid it to create QApplication before qapp fixture""" + from silx import sx + if sx._IS_NOTEBOOK: + pytest.skip("notebook context") + if sx._NO_DISPLAY: + pytest.skip("no DISPLAY specified") + yield sx + + +def test_plot(sx, qapp_utils): + """Test plot function""" + y = numpy.random.random(100) + x = numpy.arange(len(y)) * 0.5 + + # Nothing + plt = sx.plot() + qapp_utils.exposeAndClose(plt) + + # y + plt = sx.plot(y, title='y') + qapp_utils.exposeAndClose(plt) + + # y, style + plt = sx.plot(y, 'blued ', title='y, "blued "') + qapp_utils.exposeAndClose(plt) + + # x, y + plt = sx.plot(x, y, title='x, y') + qapp_utils.exposeAndClose(plt) + + # x, y, style + plt = sx.plot(x, y, 'ro-', xlabel='x', title='x, y, "ro-"') + qapp_utils.exposeAndClose(plt) + + # x, y, style, y + plt = sx.plot(x, y, 'ro-', y ** 2, xlabel='x', ylabel='y', + title='x, y, "ro-", y ** 2') + qapp_utils.exposeAndClose(plt) + + # x, y, style, y, style + plt = sx.plot(x, y, 'ro-', y ** 2, 'b--', + title='x, y, "ro-", y ** 2, "b--"') + qapp_utils.exposeAndClose(plt) + + # x, y, style, x, y, style + plt = sx.plot(x, y, 'ro-', x, y ** 2, 'b--', + title='x, y, "ro-", x, y ** 2, "b--"') + qapp_utils.exposeAndClose(plt) + + # x, y, x, y + plt = sx.plot(x, y, x, y ** 2, title='x, y, x, y ** 2') + qapp_utils.exposeAndClose(plt) + + +def test_imshow(sx, qapp_utils): + """Test imshow function""" + img = numpy.arange(100.).reshape(10, 10) + 1 + + # Nothing + plt = sx.imshow() + qapp_utils.exposeAndClose(plt) + + # image + plt = sx.imshow(img) + qapp_utils.exposeAndClose(plt) + + # image, named cmap + plt = sx.imshow(img, cmap='jet', title='jet cmap') + qapp_utils.exposeAndClose(plt) + + # image, custom colormap + plt = sx.imshow(img, cmap=Colormap(), title='custom colormap') + qapp_utils.exposeAndClose(plt) + + # image, log cmap + plt = sx.imshow(img, norm='log', title='log cmap') + qapp_utils.exposeAndClose(plt) + + # image, fixed range + plt = sx.imshow(img, vmin=10, vmax=20, + title='[10,20] cmap') + qapp_utils.exposeAndClose(plt) + + # image, keep ratio + plt = sx.imshow(img, aspect=True, + title='keep ratio') + qapp_utils.exposeAndClose(plt) + + # image, change origin and scale + plt = sx.imshow(img, origin=(10, 10), scale=(2, 2), + title='origin=(10, 10), scale=(2, 2)') + qapp_utils.exposeAndClose(plt) + + # image, origin='lower' + plt = sx.imshow(img, origin='upper', title='origin="lower"') + qapp_utils.exposeAndClose(plt) + + +def test_scatter(sx, qapp_utils): + """Test scatter function""" + x = numpy.arange(100) + y = numpy.arange(100) + values = numpy.arange(100) + + # simple scatter + plt = sx.scatter(x, y, values) + qapp_utils.exposeAndClose(plt) + + # No value + plt = sx.scatter(x, y, values) + qapp_utils.exposeAndClose(plt) + + # single value + plt = sx.scatter(x, y, 10.) + qapp_utils.exposeAndClose(plt) + + # set size + plt = sx.scatter(x, y, values, size=20) + qapp_utils.exposeAndClose(plt) + + # set colormap + plt = sx.scatter(x, y, values, cmap='jet') + qapp_utils.exposeAndClose(plt) + + # set colormap range + plt = sx.scatter(x, y, values, vmin=2, vmax=50) + qapp_utils.exposeAndClose(plt) + + # set colormap normalisation + plt = sx.scatter(x, y, values, norm='log') + qapp_utils.exposeAndClose(plt) + + +@pytest.mark.parametrize("plot_kind", ["plot", "imshow", "scatter"]) +def test_ginput(sx, qapp, qapp_utils, plot_kind): + """Test ginput function + + This does NOT perform interactive tests + """ + create_plot = getattr(sx, plot_kind) + plt = create_plot() + qapp_utils.qWaitForWindowExposed(plt) + qapp.processEvents() + + result = sx.ginput(1, timeout=0.1) + assert len(result) == 0 + + plt.setAttribute(qt.Qt.WA_DeleteOnClose) + plt.close() + + +@pytest.mark.usefixtures("use_opengl") +def test_contour3d(sx, qapp_utils): + """Test contour3d function""" + coords = numpy.linspace(-10, 10, 64) + z = coords.reshape(-1, 1, 1) + y = coords.reshape(1, -1, 1) + x = coords.reshape(1, 1, -1) + data = numpy.sin(x * y * z) / (x * y * z) + + # Just data + window = sx.contour3d(data) + + isosurfaces = window.getIsosurfaces() + assert len(isosurfaces) == 1 + + if not window.getPlot3DWidget().isValid(): + del window, isosurfaces # Release widget reference + pytest.skip("OpenGL context is not valid") + + # N contours + color + colors = ['red', 'green', 'blue'] + window = sx.contour3d(data, copy=False, contours=len(colors), + color=colors) + + isosurfaces = window.getIsosurfaces() + assert len(isosurfaces) == len(colors) + for iso, color in zip(isosurfaces, colors): + assert rgba(iso.getColor()) == rgba(color) + + # by isolevel, single color + contours = 0.2, 0.5 + window = sx.contour3d(data, copy=False, contours=contours, + color='yellow') + + isosurfaces = window.getIsosurfaces() + assert len(isosurfaces) == len(contours) + for iso, level in zip(isosurfaces, contours): + assert iso.getLevel() == level + assert rgba(iso.getColor()) == rgba('yellow') + + # Single isolevel, colormap + window = sx.contour3d(data, copy=False, contours=0.5, + colormap='gray', vmin=0.6, opacity=0.4) + + isosurfaces = window.getIsosurfaces() + assert len(isosurfaces) == 1 + assert isosurfaces[0].getLevel() == 0.5 + assert rgba(isosurfaces[0].getColor()) == (0., 0., 0., 0.4) + + +@pytest.mark.usefixtures("use_opengl") +def test_points3d(sx, qapp_utils): + """Test points3d function""" + x = numpy.random.random(1024) + y = numpy.random.random(1024) + z = numpy.random.random(1024) + values = numpy.random.random(1024) + + # 3D positions, no value + window = sx.points3d(x, y, z) + + if not window.getSceneWidget().isValid(): + del window # Release widget reference + pytest.skip("OpenGL context is not valid") + + # 3D positions, values + window = sx.points3d(x, y, z, values, mode='2dsquare', + colormap='magma', vmin=0.4, vmax=0.5) + + # 2D positions, no value + window = sx.points3d(x, y) + + # 2D positions, values + window = sx.points3d(x, y, values=values, mode=',', + colormap='magma', vmin=0.4, vmax=0.5) |