a6971c768d
To reduce complexity, and make it easier to add more images and tests, the images in the `test-data` repository should be merged with the main repository. Furthermore, we can remove a lot of the subprocess work in the image_testing.py file, as we no longer need to have it interact with git. The images are not the same. Images were regenerated with Qt6, and now have proper big and little endian handling thanks to @pijyoi Second commit is a slightly modified variant of 2e135ab282d6007b34a3854921be54d0e9efb241 authored by @pijyoi it is to convert qimages to RGBA8888 for testing. Image files were regenerated images for the big/little handling Fixed issue with bogus test from test_NonUniformImage and generated a new image
256 lines
9.0 KiB
Python
256 lines
9.0 KiB
Python
# -*- coding: utf-8 -*-
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import sys
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import numpy as np
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import pytest
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import pyqtgraph as pg
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import platform
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from pyqtgraph.Qt import QtCore, QtGui, QtTest
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from tests.image_testing import assertImageApproved
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from tests.ui_testing import mouseMove, mouseDrag, mouseClick, resizeWindow
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app = pg.mkQApp()
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pg.setConfigOption("mouseRateLimit", 0)
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def test_getArrayRegion(transpose=False):
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pr = pg.PolyLineROI([[0, 0], [27, 0], [0, 28]], closed=True)
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pr.setPos(1, 1)
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rois = [
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(pg.ROI([1, 1], [27, 28], pen='y'), 'baseroi'),
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(pg.RectROI([1, 1], [27, 28], pen='y'), 'rectroi'),
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(pg.EllipseROI([1, 1], [27, 28], pen='y'), 'ellipseroi'),
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(pr, 'polylineroi'),
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]
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for roi, name in rois:
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# For some ROIs, resize should not be used.
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testResize = not isinstance(roi, pg.PolyLineROI)
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origMode = pg.getConfigOption('imageAxisOrder')
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try:
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if transpose:
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pg.setConfigOptions(imageAxisOrder='row-major')
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check_getArrayRegion(roi, 'roi/'+name, testResize, transpose=True)
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else:
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pg.setConfigOptions(imageAxisOrder='col-major')
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check_getArrayRegion(roi, 'roi/'+name, testResize)
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finally:
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pg.setConfigOptions(imageAxisOrder=origMode)
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def test_getArrayRegion_axisorder():
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test_getArrayRegion(transpose=True)
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def check_getArrayRegion(roi, name, testResize=True, transpose=False):
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# on windows, edges corner pixels seem to be slightly different from other platforms
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# giving a pxCount=2 for a fudge factor
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if isinstance(roi, (pg.ROI, pg.RectROI)) and platform.system() == "Windows":
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pxCount = 2
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else:
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pxCount=-1
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initState = roi.getState()
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win = pg.GraphicsView()
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win.show()
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resizeWindow(win, 200, 400)
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# Don't use Qt's layouts for testing--these generate unpredictable results.
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# Instead, place the viewboxes manually
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vb1 = pg.ViewBox()
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win.scene().addItem(vb1)
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vb1.setPos(6, 6)
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vb1.resize(188, 191)
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vb2 = pg.ViewBox()
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win.scene().addItem(vb2)
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vb2.setPos(6, 203)
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vb2.resize(188, 191)
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img1 = pg.ImageItem(border='w')
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img2 = pg.ImageItem(border='w')
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vb1.addItem(img1)
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vb2.addItem(img2)
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np.random.seed(0)
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data = np.random.normal(size=(7, 30, 31, 5))
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data[0, :, :, :] += 10
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data[:, 1, :, :] += 10
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data[:, :, 2, :] += 10
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data[:, :, :, 3] += 10
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if transpose:
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data = data.transpose(0, 2, 1, 3)
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img1.setImage(data[0, ..., 0])
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vb1.setAspectLocked()
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vb1.enableAutoRange(True, True)
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roi.setZValue(10)
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vb1.addItem(roi)
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if isinstance(roi, pg.RectROI):
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if transpose:
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assert roi.getAffineSliceParams(data, img1, axes=(1, 2)) == ([28.0, 27.0], ((1.0, 0.0), (0.0, 1.0)), (1.0, 1.0))
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else:
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assert roi.getAffineSliceParams(data, img1, axes=(1, 2)) == ([27.0, 28.0], ((1.0, 0.0), (0.0, 1.0)), (1.0, 1.0))
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rgn = roi.getArrayRegion(data, img1, axes=(1, 2))
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#assert np.all((rgn == data[:, 1:-2, 1:-2, :]) | (rgn == 0))
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img2.setImage(rgn[0, ..., 0])
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vb2.setAspectLocked()
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vb2.enableAutoRange(True, True)
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app.processEvents()
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assertImageApproved(win, name+'/roi_getarrayregion', 'Simple ROI region selection.', pxCount=pxCount)
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with pytest.raises(TypeError):
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roi.setPos(0, False)
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roi.setPos([0.5, 1.5])
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rgn = roi.getArrayRegion(data, img1, axes=(1, 2))
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img2.setImage(rgn[0, ..., 0])
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app.processEvents()
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assertImageApproved(win, name+'/roi_getarrayregion_halfpx', 'Simple ROI region selection, 0.5 pixel shift.', pxCount=pxCount)
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roi.setAngle(45)
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roi.setPos([3, 0])
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rgn = roi.getArrayRegion(data, img1, axes=(1, 2))
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img2.setImage(rgn[0, ..., 0])
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app.processEvents()
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assertImageApproved(win, name+'/roi_getarrayregion_rotate', 'Simple ROI region selection, rotation.', pxCount=pxCount)
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if testResize:
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roi.setSize([60, 60])
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rgn = roi.getArrayRegion(data, img1, axes=(1, 2))
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img2.setImage(rgn[0, ..., 0])
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app.processEvents()
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assertImageApproved(win, name+'/roi_getarrayregion_resize', 'Simple ROI region selection, resized.', pxCount=pxCount)
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img1.setPos(0, img1.height())
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img1.setTransform(QtGui.QTransform().scale(1, -1).rotate(20), True)
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rgn = roi.getArrayRegion(data, img1, axes=(1, 2))
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img2.setImage(rgn[0, ..., 0])
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app.processEvents()
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assertImageApproved(win, name+'/roi_getarrayregion_img_trans', 'Simple ROI region selection, image transformed.', pxCount=pxCount)
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vb1.invertY()
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rgn = roi.getArrayRegion(data, img1, axes=(1, 2))
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img2.setImage(rgn[0, ..., 0])
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app.processEvents()
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assertImageApproved(win, name+'/roi_getarrayregion_inverty', 'Simple ROI region selection, view inverted.', pxCount=pxCount)
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roi.setState(initState)
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img1.setPos(0, 0)
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img1.setTransform(QtGui.QTransform.fromScale(1, 0.5))
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rgn = roi.getArrayRegion(data, img1, axes=(1, 2))
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img2.setImage(rgn[0, ..., 0])
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app.processEvents()
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assertImageApproved(win, name+'/roi_getarrayregion_anisotropic', 'Simple ROI region selection, image scaled anisotropically.', pxCount=pxCount)
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# allow the roi to be re-used
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roi.scene().removeItem(roi)
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win.hide()
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def test_mouseClickEvent():
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plt = pg.GraphicsView()
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plt.show()
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resizeWindow(plt, 200, 200)
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vb = pg.ViewBox()
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plt.scene().addItem(vb)
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vb.resize(200, 200)
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QtTest.QTest.qWaitForWindowExposed(plt)
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QtTest.QTest.qWait(100)
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roi = pg.RectROI((0, 0), (10, 20), removable=True)
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vb.addItem(roi)
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app.processEvents()
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mouseClick(plt, roi.mapToScene(pg.Point(2, 2)), QtCore.Qt.LeftButton)
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def test_PolyLineROI():
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rois = [
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(pg.PolyLineROI([[0, 0], [10, 0], [0, 15]], closed=True, pen=0.3), 'closed'),
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(pg.PolyLineROI([[0, 0], [10, 0], [0, 15]], closed=False, pen=0.3), 'open')
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]
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#plt = pg.plot()
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plt = pg.GraphicsView()
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plt.show()
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resizeWindow(plt, 200, 200)
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vb = pg.ViewBox()
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plt.scene().addItem(vb)
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vb.resize(200, 200)
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#plt.plotItem = pg.PlotItem()
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#plt.scene().addItem(plt.plotItem)
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#plt.plotItem.resize(200, 200)
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plt.scene().minDragTime = 0 # let us simulate mouse drags very quickly.
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# seemingly arbitrary requirements; might need longer wait time for some platforms..
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QtTest.QTest.qWaitForWindowExposed(plt)
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QtTest.QTest.qWait(100)
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for r, name in rois:
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vb.clear()
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vb.addItem(r)
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vb.autoRange()
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app.processEvents()
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_init', 'Init %s polyline.' % name)
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initState = r.getState()
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assert len(r.getState()['points']) == 3
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# hover over center
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center = r.mapToScene(pg.Point(3, 3))
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mouseMove(plt, center)
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_hover_roi', 'Hover mouse over center of ROI.')
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# drag ROI
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mouseDrag(plt, center, center + pg.Point(10, -10), QtCore.Qt.LeftButton)
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_drag_roi', 'Drag mouse over center of ROI.')
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# hover over handle
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pt = r.mapToScene(pg.Point(r.getState()['points'][2]))
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mouseMove(plt, pt)
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_hover_handle', 'Hover mouse over handle.')
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# drag handle
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mouseDrag(plt, pt, pt + pg.Point(5, 20), QtCore.Qt.LeftButton)
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_drag_handle', 'Drag mouse over handle.')
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# hover over segment
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pt = r.mapToScene((pg.Point(r.getState()['points'][2]) + pg.Point(r.getState()['points'][1])) * 0.5)
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mouseMove(plt, pt+pg.Point(0, 2))
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_hover_segment', 'Hover mouse over diagonal segment.')
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# click segment
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mouseClick(plt, pt, QtCore.Qt.LeftButton)
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_click_segment', 'Click mouse over segment.')
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# drag new handle
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mouseMove(plt, pt+pg.Point(10, -10)) # pg bug: have to move the mouse off/on again to register hover
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mouseDrag(plt, pt, pt + pg.Point(10, -10), QtCore.Qt.LeftButton)
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_drag_new_handle', 'Drag mouse over created handle.')
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# clear all points
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r.clearPoints()
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_clear', 'All points cleared.')
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assert len(r.getState()['points']) == 0
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# call setPoints
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r.setPoints(initState['points'])
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_setpoints', 'Reset points to initial state.')
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assert len(r.getState()['points']) == 3
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# call setState
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r.setState(initState)
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assertImageApproved(plt, 'roi/polylineroi/'+name+'_setstate', 'Reset ROI to initial state.')
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assert len(r.getState()['points']) == 3
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plt.hide()
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