import numpy as np import pyqtgraph as pg from tests.image_testing import assertImageApproved def test_PlotCurveItem(): p = pg.GraphicsLayoutWidget() p.resize(200, 150) p.ci.setContentsMargins(4, 4, 4, 4) # default margins vary by platform p.show() v = p.addViewBox() data = np.array([1,4,2,3,np.inf,5,7,6,-np.inf,8,10,9,np.nan,-1,-2,0]) c = pg.PlotCurveItem(data) v.addItem(c) v.autoRange() # Check auto-range works. Some platform differences may be expected.. checkRange = np.array([[-1.1457564053237301, 16.145756405323731], [-3.076811473165955, 11.076811473165955]]) assert np.allclose(v.viewRange(), checkRange) assertImageApproved(p, 'plotcurveitem/connectall', "Plot curve with all points connected.") c.setData(data, connect='pairs') assertImageApproved(p, 'plotcurveitem/connectpairs', "Plot curve with pairs connected.") c.setData(data, connect='finite') assertImageApproved(p, 'plotcurveitem/connectfinite', "Plot curve with finite points connected.") c.setData(data, connect=np.array([1,1,1,0,1,1,0,0,1,0,0,0,1,1,0,0])) assertImageApproved(p, 'plotcurveitem/connectarray', "Plot curve with connection array.") p.close()