def imshow(data, title=None, hold=False):
dlg = ImageDialog(wintitle=title)
dlg.get_plot().add_item(make.image(data))
if hold:
dlg.show()
else:
dlg.exec_()
def test():
win = ImageDialog(edit=True, toolbar=True,
wintitle="Sample multi-polygon item")
plot = win.get_plot()
plot.set_aspect_ratio(lock=True)
plot.set_antialiasing(False)
plot.set_axis_direction('left', False)
plot.set_axis_title("bottom", "Lon")
plot.set_axis_title("left", "Lat")
points = []
offsets = zeros( (NCIRC, 2), int32)
colors = zeros( (NCIRC, 2), uint32)
npts = 0
for k in range(NCIRC):
pts = create_circle()
offsets[k, 0] = k
offsets[k, 1] = npts
npts += pts.shape[0]
points.append(pts)
colors[k, 0] = COLORS[k%len(COLORS)][0]
colors[k, 1] = COLORS[(3*k)%len(COLORS)][1]
points = concatenate(points)
print(NCIRC, "Polygons")
print(points.shape[0], "Points")
crv = PolygonMapItem()
crv.set_data(points, offsets, colors)
plot.add_item(crv, z=0)
win.show()
win.exec_()
def imshow(items, title=""):
gridparam = make.gridparam(background="black", minor_enabled=(False, False),
major_style=(".", "gray", 1))
win = ImageDialog(edit=False, toolbar=True, wintitle=title,
options=dict(gridparam=gridparam))
nc = int(np.sqrt(len(items))+1.0)
maxy = 0
y = 0
x = 0
w = None
plot = win.get_plot()
print("-"*80)
for i, item in enumerate(items):
h = item.boundingRect().height()
if i%nc==0:
x = 0
y += maxy
maxy = h
else:
x += w
maxy = max(maxy, h)
w = item.boundingRect().width()
item.set_transform(x, y, 0.0)
print("Adding item #%d..." % i, end=' ')
plot.add_item(item)
print("Done")
win.show()
win.exec_()
def imshow(items, title=""):
gridparam = make.gridparam(background="black",
minor_enabled=(False, False),
major_style=(".", "gray", 1))
win = ImageDialog(edit=False,
toolbar=True,
wintitle=title,
options=dict(gridparam=gridparam))
nc = int(np.sqrt(len(items)) + 1.0)
maxy = 0
y = 0
x = 0
w = None
plot = win.get_plot()
print("-" * 80)
for i, item in enumerate(items):
h = item.boundingRect().height()
if i % nc == 0:
x = 0
y += maxy
maxy = h
else:
x += w
maxy = max(maxy, h)
w = item.boundingRect().width()
item.set_transform(x, y, 0.0)
print("Adding item #%d..." % i, end=' ')
plot.add_item(item)
print("Done")
win.show()
win.exec_()
def test():
win = ImageDialog(edit=True, toolbar=True, wintitle="Sample multi-polygon item")
plot = win.get_plot()
plot.set_aspect_ratio(lock=True)
plot.set_antialiasing(False)
plot.set_axis_direction("left", False)
plot.set_axis_title("bottom", "Lon")
plot.set_axis_title("left", "Lat")
points = []
offsets = zeros((NCIRC, 2), int32)
colors = zeros((NCIRC, 2), uint32)
npts = 0
for k in range(NCIRC):
pts = create_circle()
offsets[k, 0] = k
offsets[k, 1] = npts
npts += pts.shape[0]
points.append(pts)
colors[k, 0] = COLORS[k % len(COLORS)][0]
colors[k, 1] = COLORS[(3 * k) % len(COLORS)][1]
points = concatenate(points)
print(NCIRC, "Polygons")
print(points.shape[0], "Points")
crv = PolygonMapItem()
crv.set_data(points, offsets, colors)
plot.add_item(crv, z=0)
win.show()
win.exec_()
def roi_setup(self):
"""Show a dialog to setup the region of interest."""
dialog = ImageDialog("ROI Setup", edit=True, toolbar=False, parent=self)
default = dialog.add_tool(SelectTool)
dialog.set_default_tool(default)
roi_tool = dialog.add_tool(RectangleTool, switch_to_default_tool=True)
roi = self.cam.roi
old_roi = roi
roi_tool.activate()
# Get image and display
plot = dialog.get_plot()
img = make.image(self.cam_thread.img_data)
plot.add_item(img)
plot.set_active_item(img)
# Wait for user input
dialog.show()
if dialog.exec_():
try:
roi = get_rect(roi_tool)
self.cam.set_roi(roi)
except:
e = sys.exc_info()
print(e)
self.cam.set_roi(old_roi)
def imshow(filename):
win = ImageDialog(edit=False, toolbar=True, wintitle="RGB image item test")
item = make.rgbimage(filename=filename, xdata=[-1, 1], ydata=[-1, 1])
plot = win.get_plot()
plot.add_item(item)
win.show()
win.exec_()
def test():
"""Test"""
# -- Create QApplication
import guidata
_app = guidata.qapplication()
# --
filename = osp.join(osp.dirname(__file__), "brain.png")
image = make.image(filename=filename, title="Original", colormap="gray")
win = ImageDialog(
edit=False,
toolbar=True,
wintitle="Contrast test",
options=dict(show_contrast=True),
)
plot = win.get_plot()
plot.add_item(image)
win.resize(600, 600)
win.show()
try:
plot.save_widget("contrast.png")
except IOError:
# Skipping this part of the test
# because user has no write permission on current directory
pass
win.exec_()
def imshow(filename):
win = ImageDialog(edit=False, toolbar=True, wintitle="RGB image item test")
item = make.rgbimage(filename=filename, xdata=[-1, 1], ydata=[-1, 1])
plot = win.get_plot()
plot.add_item(item)
win.show()
win.exec_()
def imshow( items ):
win = ImageDialog(edit=False, toolbar=True, options={"yreverse": False},
wintitle="Pcolor test")
plot = win.get_plot()
for item in items:
plot.add_item(item)
win.show()
win.exec_()
def imshow( data ):
win = ImageDialog(edit=False, toolbar=True, wintitle="ImageDialog test",
options=dict(xlabel='Concentration', xunit='ppm'))
item = make.image(data)
plot = win.get_plot()
plot.add_item(item)
win.show()
win.exec_()
def imshow( items ):
win = ImageDialog(edit=False, toolbar=True, options={"yreverse": False},
wintitle="Pcolor test")
plot = win.get_plot()
for item in items:
plot.add_item(item)
win.show()
win.exec_()
def imshow( x, y, data ):
win = ImageDialog(edit=False, toolbar=True,
wintitle="Image with custom X/Y axes scales",
options=dict(xlabel="x (a.u.)", ylabel="y (a.u.)",
yreverse=False))
item = make.xyimage(x, y, data)
plot = win.get_plot()
plot.add_item(item)
win.show()
win.exec_()
def mandel():
win = ImageDialog(edit=True, toolbar=True, wintitle="Mandelbrot",
options=dict(yreverse=False))
mandel = MandelItem(-1.5, .5, -1., 1.)
win.add_tool(FullScale, mandel)
plot = win.get_plot()
plot.set_aspect_ratio(lock=False)
plot.add_item(mandel)
plot.set_full_scale(mandel)
win.show()
win.exec_()
def hist2d_func(X, Y, Z):
win = ImageDialog(edit=True, toolbar=True, wintitle="2-D Histogram X0=(0,1), X1=(-1,-1)")
hist2d = make.histogram2D(X, Y, 200, 200, Z=Z, computation=2)
curve = make.curve(X[::50], Y[::50], linestyle="", marker="+", title=_("Markers"))
plot = win.get_plot()
plot.set_aspect_ratio(lock=False)
plot.set_antialiasing(False)
plot.add_item(hist2d)
plot.add_item(curve)
plot.set_item_visible(curve, False)
win.show()
win.exec_()
def mandel():
win = ImageDialog(edit=True,
toolbar=True,
wintitle="Mandelbrot",
options=dict(yreverse=False))
mandel = MandelItem(-1.5, .5, -1., 1.)
win.add_tool(FullScale, mandel)
plot = win.get_plot()
plot.set_aspect_ratio(lock=False)
plot.add_item(mandel)
plot.set_full_scale(mandel)
win.show()
win.exec_()
def hist2d_func(X, Y, Z):
win = ImageDialog(edit=True, toolbar=True,
wintitle="2-D Histogram X0=(0,1), X1=(-1,-1)")
hist2d = make.histogram2D(X, Y, 200, 200, Z=Z, computation=2)
curve = make.curve(X[::50], Y[::50],
linestyle='', marker='+', title=_("Markers"))
plot = win.get_plot()
plot.set_aspect_ratio(lock=False)
plot.set_antialiasing(False)
plot.add_item(hist2d)
plot.add_item(curve)
plot.set_item_visible(curve, False)
win.show()
win.exec_()
def imshow(x, y, data, filter_area, yreverse=True):
win = ImageDialog(edit=False, toolbar=True, wintitle="Image filter demo",
options=dict(xlabel="x (cm)", ylabel="y (cm)",
yreverse=yreverse))
image = make.xyimage(x, y, data)
plot = win.get_plot()
plot.add_item(image)
xmin, xmax, ymin, ymax = filter_area
flt = make.imagefilter(xmin, xmax, ymin, ymax, image,
filter=lambda x, y, data: gaussian_filter(data, 5))
plot.add_item(flt, z=1)
plot.replot()
win.show()
win.exec_()
def get_segment(item):
"""Show image and return selected segment coordinates"""
win = ImageDialog(_("Select a segment then press OK to accept"), edit=True)
default = win.add_tool(SelectTool)
win.set_default_tool(default)
segtool = win.add_tool(AnnotatedSegmentTool, title="Test",
switch_to_default_tool=True)
segtool.activate()
plot = win.get_plot()
plot.add_item(item)
plot.set_active_item(item)
win.show()
if win.exec_():
shape = segtool.get_last_final_shape()
return shape.get_rect()
def plotImage(x,y,z,wintitle="Contour Plot",options={"lock_aspect_ratio":False,"yreverse":False}):
options.update(dict(show_xsection=True, show_ysection=True))
"""Test"""
# -- Create QApplication
_app = guidata.qapplication()
# --
win = ImageDialog(edit=True, toolbar=True, wintitle=wintitle,
options=options)
win.resize(1500, 1000)
item = make.xyimage(x, y, z,interpolation="linear")
plot = win.get_plot()
plot.add_item(item)
win.plot_widget.xcsw_splitter.setSizes([400,600])
win.show()
return win
def get_segment(item):
"""Show image and return selected segment coordinates"""
win = ImageDialog(_("Select a segment then press OK to accept"), edit=True)
default = win.add_tool(SelectTool)
win.set_default_tool(default)
segtool = win.add_tool(AnnotatedSegmentTool,
title="Test",
switch_to_default_tool=True)
segtool.activate()
plot = win.get_plot()
plot.add_item(item)
plot.set_active_item(item)
win.show()
if win.exec_():
shape = segtool.get_last_final_shape()
return shape.get_rect()
def data_view(data, ofa, data_title):
win = ImageDialog(edit=True,
toolbar=True,
wintitle="DW viewer",
options=dict(show_contrast=False,
xlabel='Channel',
xunit='#',
ylabel='time',
show_xsection=True,
show_ysection=True))
# win.add_tool(AnnotatedRectangleTool)
# win.add_tool(ReverseYAxisTool)
# win.add_tool(AnnotatedRectangleTool, title="Flag",
# switch_to_default_tool=False,
# handle_final_shape_cb=customize_shape)
# win.add_tool(VCursorTool)
# sst=win.add_tool(SignalStatsTool)
# SignalStatsTool.activate(sst)
xcs = win.panels['x_cross_section']
xcs.cs_plot.curveparam.curvestyle = 'Steps'
xcs.cs_plot.perimage_mode = False
ycs = win.panels['y_cross_section']
ycs.cs_plot.curveparam.curvestyle = 'Steps'
ycs.cs_plot.perimage_mode = False
item_data = make.image(data, title=data_title)
item_data.interpolate = (0, )
item_ofa = make.image(ofa, title='Overflow')
item_ofa.interpolate = (0, )
item_ofa.imageparam.alpha_mask = True
plot = win.get_plot()
plot.add_item(item_data)
plot.add_item(item_ofa)
# plot.add_item(itemFlag)
win.show()
if win.exec_():
# return plot.items
return win
def imshow(x, y, data, filter_area, yreverse=True):
win = ImageDialog(edit=False,
toolbar=True,
wintitle="Image filter demo",
options=dict(xlabel="x (cm)",
ylabel="y (cm)",
yreverse=yreverse))
image = make.xyimage(x, y, data)
plot = win.get_plot()
plot.add_item(image)
xmin, xmax, ymin, ymax = filter_area
flt = make.imagefilter(xmin,
xmax,
ymin,
ymax,
image,
filter=lambda x, y, data: gaussian_filter(data, 5))
plot.add_item(flt, z=1)
plot.replot()
win.show()
win.exec_()
def test():
"""Test"""
# -- Create QApplication
import guidata
_app = guidata.qapplication()
# --
filename = osp.join(osp.dirname(__file__), "brain.png")
image = make.image(filename=filename, title="Original", colormap='gray')
win = ImageDialog(edit=False, toolbar=True, wintitle="Contrast test",
options=dict(show_contrast=True))
plot = win.get_plot()
plot.add_item(image)
win.resize(600, 600)
win.show()
try:
plot.save_widget('contrast.png')
except IOError:
# Skipping this part of the test
# because user has no write permission on current directory
pass
win.exec_()
def plotImage(x,
y,
z,
wintitle="Contour Plot",
options={
"lock_aspect_ratio": False,
"yreverse": False
}):
options.update(dict(show_xsection=True, show_ysection=True))
"""Test"""
# -- Create QApplication
_app = guidata.qapplication()
# --
win = ImageDialog(edit=True,
toolbar=True,
wintitle=wintitle,
options=options)
win.resize(1500, 1000)
item = make.xyimage(x, y, z, interpolation="linear")
plot = win.get_plot()
plot.add_item(item)
win.plot_widget.xcsw_splitter.setSizes([400, 600])
win.show()
return win
SHOW = True # Show test in GUI-based test launcher
FNAME = "image_masked.pickle"
if __name__ == "__main__":
import guidata
_app = guidata.qapplication()
win = ImageDialog(toolbar=True, wintitle="Masked image item test")
win.add_tool(ImageMaskTool)
if os.access(FNAME, os.R_OK):
print("Restoring mask...", end=" ")
iofile = open(FNAME, "rb")
image = pickle.load(iofile)
iofile.close()
print("OK")
else:
fname = osp.join(osp.abspath(osp.dirname(__file__)), "brain.png")
image = make.maskedimage(
filename=fname,
colormap="gray",
show_mask=True,
xdata=[0, 20],
ydata=[0, 25],
)
win.get_plot().add_item(image)
win.show()
win.exec_()
iofile = open(FNAME, "wb")
pickle.dump(image, iofile)
class MTEAcqu(QWidget):
def __init__(self, parent):
super(QWidget, self).__init__(parent)
self.parent = parent
self.base_path = os.path.realpath(os.path.curdir)
self.threadAcq = ThreadAcq(self)
self.configMTE = QSettings('configMTE.ini', QSettings.IniFormat)
self.setup()
self.win = ImageDialog(edit=False,
toolbar=True,
wintitle="Visu Data",
options=dict(show_xsection=True,
show_ysection=True,
show_contrast=True,
show_itemlist=False))
self.win.resize(800, 1000)
data = np.ones((1300, 1340))
self.item_data = make.image(data, colormap='hot')
self.plot = self.win.get_plot()
self.plot.add_item(self.item_data)
def setup(self):
self.setWindowTitle('MTE acquisition')
self.name_file = QLineEdit('filename.tif')
self.showParam = QPushButton('Show Param')
self.showParam.clicked.connect(self.show_all_param)
self.com_conf = QComboBox()
self.com_conf.insertItems(0, self.configMTE.childGroups())
self.but_load_conf = QPushButton('load conf')
self.but_load_conf.clicked.connect(self.load_conf)
hlayout3 = QHBoxLayout()
hlayout3.addWidget(self.but_load_conf)
self.check_bck = QCheckBox('Substract BCK')
self.but_tool = QToolButton()
self.but_tool.setText('...')
self.but_tool.clicked.connect(self.load_BCK)
self.name_bck = QLineEdit('filename_BCK.tif')
self.name_bck.setDisabled(True)
hlayout = QHBoxLayout()
hlayout.addWidget(self.check_bck)
hlayout.addWidget(self.but_tool)
self.lin_base_path = QLineEdit('default path')
self.lin_base_path.setText(self.base_path)
self.lin_base_path.setDisabled(True)
self.but_base_path = QToolButton()
self.but_base_path.setText('...')
self.but_base_path.clicked.connect(self.ch_base_path)
hlayout2 = QHBoxLayout()
hlayout2.addWidget(self.lin_base_path)
hlayout2.addWidget(self.but_base_path)
self.startAcq = QPushButton('Start Acq')
self.startAcq.clicked.connect(self.start_acq)
self.but_show = QPushButton('Show data')
self.but_show.clicked.connect(self.show_data)
vlayout = QVBoxLayout(self)
vlayout.addWidget(self.showParam)
vlayout.addSpacing(25)
vlayout.addWidget(self.com_conf)
vlayout.addLayout(hlayout3)
vlayout.addSpacing(25)
vlayout.addLayout(hlayout)
vlayout.addWidget(self.name_bck)
vlayout.addSpacing(25)
vlayout.addLayout(hlayout2)
vlayout.addWidget(self.name_file)
vlayout.addWidget(self.startAcq)
vlayout.addSpacing(25)
vlayout.addWidget(self.but_show)
vlayout.addStretch()
self.setLayout(vlayout)
def ch_base_path(self):
self.base_path = QFileDialog.getExistingDirectory(self)
self.lin_base_path.setText(self.base_path)
print('Base path is set to : %s' % self.base_path)
def load_BCK(self):
path_bck = QFileDialog.getOpenFileName(self)
self.name_bck.setText(path_bck)
print('Background file is set to : %s' % path_bck)
import PIL
img_pil = PIL.Image.open(path_bck)
self.array_bck = np.array(img_pil)
def start_acq(self):
self.mte = self.parent.widCON.mte
self.threadAcq.start()
def show_all_param(self):
self.mte.printAvailableParameters()
param = ['ExposureTime', 'ShutterTimingMode']
print('#### MTE parameters ####')
for p in param:
print(p, self.mte.getParameter(p))
def show_data(self):
self.win.show()
def load_conf(self):
conf = self.com_conf.currentText()
self.configMTE = QSettings('configMTE.ini', QSettings.IniFormat)
print('Loading configuration: %s' % conf)
x0 = int(self.configMTE.value(conf + '/x0'))
w = int(self.configMTE.value(conf + '/w'))
y0 = int(self.configMTE.value(conf + '/y0'))
h = int(self.configMTE.value(conf + '/h'))
CleanCycleCount = int(self.configMTE.value(conf + '/CleanCycleCount'))
ExposureTime = int(self.configMTE.value(conf + '/ExposureTime'))
TriggerResponse = int(self.configMTE.value(conf + '/TriggerResponse'))
self.mte = self.parent.widCON.mte
self.mte.setParameter("CleanCycleCount", CleanCycleCount)
self.mte.setParameter("ExposureTime", ExposureTime)
self.mte.setParameter("TriggerResponse", TriggerResponse)
self.mte.setROI(x0, w, 1, y0, h, 1)
self.mte.sendConfiguration()
class Gui(object):
def __init__(self, xlabel=None, ylabel=None, winTitle=None):
"""
Boilerplate code for guiqwt image window. Includes qt application,
x-,y-crosssection, itemlistpanel, contrast adjustment.
Returns
--------
win : guiqwt.plot.ImageDialog
_app : PyQt4.QtGui.QApplication
"""
self._app = qapplication()
self.win = ImageDialog(edit=False,
toolbar=True,
wintitle=winTitle,
options=dict(xlabel=xlabel,
ylabel=ylabel,
yreverse=False,
lock_aspect_ratio=False))
self.itemlist_panel = self.win.get_itemlist_panel()
self.itemlist_panel.show()
action = QAction(get_icon('busy.png'), "Reload", self.itemlist_panel)
action.triggered.connect(self.reload_measurement)
self.itemlist_panel.children()[-2].addAction(action)
self.win.plot_widget.plot.SIG_ITEM_REMOVED.connect(
self.remove_measurement)
action = QAction(get_icon('save_all.png'), "Save all",
self.itemlist_panel)
action.triggered.connect(self.save_measurements)
self.itemlist_panel.children()[-3].addAction(action)
def fun(shape):
shape.symbol.pen().setWidth(2)
shape.symbol.setColor(QColor(255, 0, 0))
self.win.add_tool(PointTool, handle_final_shape_cb=fun)
self.win.get_xcs_panel().show()
self.win.get_ycs_panel().show()
self.win.get_contrast_panel().show()
action = QAction(get_icon('fileopen.png'), "Open measurement",
self.itemlist_panel)
action.triggered.connect(self.load_measurement)
self.win.get_toolbar().addAction(action)
self.win.get_toolbar().addAction("Load VNA measurement",
self.load_VNAMeasurement)
self.win.get_toolbar().addAction(
"Load VNA measurement ...",
self.load_VNAMeasurement_select_channels)
self.win.get_toolbar().addAction(
"Load VNA fields measurement ",
self.load_VNASeparateFieldsMeasurement)
self.win.get_toolbar().addAction("Get points", self.get_points)
if peakit:
self.win.get_toolbar().addAction("Fitting tool ...",
self.launchFittingTool)
self.fitting_controller = MeasurementController()
else:
self.fitting_controller = None
self.operations_widget = OperationsWidget()
bbfmr_operations = list(
filter(None,
[("bbFMR.processing.%s" % s) if "__" not in s else None
for s in dir(bp)]))
self.operations_widget.populate_available_operations(bbfmr_operations)
self.itemlist_panel.layout().addWidget(self.operations_widget)
self.itemlist_panel.listwidget.selectionModel(
).selectionChanged.connect(self.refresh_operations)
self.operations_widget.operations_changed.connect(
self.replot_measurement)
self.plot_items = self.win.plot_widget.plot.items
self.measurements = []
def _get_current_plot_item(self):
selection = self.itemlist_panel.listwidget.selectedIndexes()
if len(selection) > 0:
list_idx = selection[0].row()
plot_item_idx = len(self.plot_items) - 1 - list_idx
return self.plot_items[plot_item_idx], plot_item_idx
else:
return None, None
def get_points(self):
points = []
for item in self.itemlist_panel.listwidget.items:
if isinstance(item, PointShape):
print(item.get_pos())
points.append(item.get_pos())
fileName = QFileDialog.getSaveFileName(caption='Save file',
filter="dat (*.dat *.)")
if fileName:
print(fileName)
np.savetxt(fileName, points, delimiter='\t')
return points
def refresh_operations(self):
plot_item, _ = self._get_current_plot_item()
if plot_item is not None:
self.operations_widget.set_operations(
plot_item.measurement.operations)
def add_measurement(self, m, **kwargs):
self.measurements.append(m)
if "title" not in m.metadata or not m.metadata["title"]:
m.metadata["title"] = m.metadata["fname"]
_, image = self.imshow(m.X[:, 0],
m.Y[0, :],
m.Z.T,
title=m.metadata["title"],
**kwargs)
image.measurement = m
def remove_measurement(self, item):
self.measurements.remove(item.measurement)
def reload_measurement(self):
"""
Trigger reloading of the currently selected measurement
"""
plot_item, plot_item_idx = self._get_current_plot_item()
if plot_item is None:
return False
plot_item.measurement.reload()
self.replot_measurement()
def replot_measurement(self):
"""
Recreate theimage for the currently selected image. Taking into account
any changed operations. Called when operations_widget.operations_changed
is emitted
"""
plot_item, plot_item_idx = self._get_current_plot_item()
if plot_item is None:
return False
m = plot_item.measurement
m.operations = self.operations_widget.get_operations()
m.process()
# recreate the image (this handles sorting of data and other bla)
from guiqwt.builder import make
image = make.xyimage(m.X[:, 0],
m.Y[0, :],
m.Z.T,
interpolation="nearest",
title=m.metadata["title"])
# update image to the new data values
plot_item.set_data(image.data)
plot_item.set_xy(image.x, image.y)
plot_item.plot().replot()
#self.win.get_plot().replot()
def imshow(self, x, y, data, title=None, cmap="RdYlGn"):
"""
Create 2D xyimage for guiqwt image dialog
Returns
--------
plot : guiqwt.image.ImagePlot
Plot widget in guiqwt ImageDialog
image : guiqwt.image.XYImageItem
Newly created image object
"""
from guiqwt.builder import make
image = make.xyimage(
x,
y,
data,
interpolation="nearest",
title=title,
)
plot = self.win.get_plot()
plot.add_item(image)
plot.do_autoscale()
plot.replot()
image.set_color_map(cmap)
image.measurement = None
return plot, image
def pcolorshow(self, aX, aY, aData, title=None):
"""
Create 2D xyimage for guiqwt image dialog
Returns
--------
plot : ?
Plot widget in guiqwt ImageDialog
image : ?
new image object
"""
from guiqwt.builder import make
image = make.pcolor(
aX,
aY,
aData,
interpolation="nearest",
title=title,
)
plot = self.win.get_plot()
plot.add_item(image)
plot.do_autoscale()
plot.replot()
return plot, image
def save_measurements(self):
"""
Save measurements object descriptions to .measurement.json file(s)
"""
folder = QFileDialog.getExistingDirectory(caption="Save measurements")
for m in self.measurements:
fname = os.path.basename(m.metadata["fname"]) + ".measurement.json"
m.save(os.path.join(folder, fname))
def load_measurement(self):
"""
Load measurements according to .measurement.json file(s)
"""
fnames = QFileDialog.getOpenFileNames(
caption="Open Tdms file(s)",
filter=
u"Measurements Object Descriptions (*.measurement.json);;All files (*.*)"
)
for fname in fnames:
with open(fname, "r") as f:
m = jsonpickle.loads(f.read())
self.add_measurement(m, cmap="RdYlGn")
return fnames
def load_VNAMeasurement(self):
"""
Load a VNA measurement from a TDMS file. Apply certain standard
operations and plot data.
"""
fnames = QFileDialog.getOpenFileNames(
caption="Open Tdms file(s)",
filter=u"TDMS (*.tdms);;All files (*.*)")
for fname in fnames:
m = VNAMeasurement(fname)
m.add_operation(bp.derivative_divide, modulation_amp=4)
m.add_operation(bp.mag)
self.add_measurement(m, cmap="RdYlGn")
return fnames
def load_VNAMeasurement_select_channels(self):
"""
Load a VNA measurement from a TDMS file. Apply certain standard
operations and plot data. Allow to select used channels.
"""
fnames = QFileDialog.getOpenFileNames(
caption="Open Tdms file(s)",
filter=u"TDMS (*.tdms);;All files (*.*)")
for fname in fnames:
tdms_file = TdmsFile(fname)
channel_labels = [
"Field channel", "Frequency channel", "Re(signal) channel",
"Im(signal) channel"
]
paths, accepted = TdmsChannelSelectDialog.get_group_channels(
tdms_file=tdms_file, channel_labels=channel_labels)
m = VNAMeasurement(fname=fname,
tdms_file=tdms_file,
group=paths[2][0],
field_channel=paths[0][1],
freq_channel=paths[1][1],
signal_channel=paths[2][1],
imag_channel=paths[3][1])
m.add_operation(bp.derivative_divide, modulation_amp=4)
m.add_operation(bp.mag)
self.add_measurement(m, cmap="RdYlGn")
return fnames
def launchFittingTool(self):
"""
...
"""
plot_item, _ = self._get_current_plot_item()
if plot_item is not None:
measurement = plot_item.measurement
else:
measurement = None
self.fitting_controller.measurement = measurement
self.fitting_controller.show_view()
def load_VNASeparateFieldsMeasurement(self):
"""
Load a VNA measurement from a TDMS file with two magnetic field channels
(field_before, field_after). Apply certain standard operations and
plot data. Allow to select used channels.
"""
fnames = QFileDialog.getOpenFileNames(
caption="Open Tdms file(s)",
filter=u"TDMS (*.tdms);;All files (*.*)")
for fname in fnames:
tdms_file = TdmsFile(fname)
channel_labels = [
"Field_before", "Field_after", "Frequency", "Re(signal)",
"Im(signal)"
]
paths, accepted = TdmsChannelSelectDialog.get_group_channels(
tdms_file=tdms_file, channel_labels=channel_labels)
m = VNASeparateFieldsMeasurement(fname=fname,
tdms_file=tdms_file,
path_field_before=paths[0],
path_field_after=paths[1],
path_frequency=paths[2],
path_real_signal=paths[3],
path_imag_signal=paths[4])
m.add_operation(bp.derivative_divide, modulation_amp=4)
m.add_operation(bp.mag)
self.add_measurement(m, cmap="RdYlGn")
return fnames
def run(self):
self.win.show()
self.win.exec()
import os, os.path as osp, pickle
from guiqwt.plot import ImageDialog
from guiqwt.tools import ImageMaskTool
from guiqwt.builder import make
SHOW = True # Show test in GUI-based test launcher
FNAME = "image_masked.pickle"
if __name__ == "__main__":
import guidata
_app = guidata.qapplication()
win = ImageDialog(toolbar=True, wintitle="Masked image item test")
win.add_tool(ImageMaskTool)
if os.access(FNAME, os.R_OK):
print("Restoring mask...", end=" ")
iofile = open(FNAME, "rb")
image = pickle.load(iofile)
iofile.close()
print("OK")
else:
fname = osp.join(osp.abspath(osp.dirname(__file__)), "brain.png")
image = make.maskedimage(filename=fname, colormap="gray", show_mask=True, xdata=[0, 20], ydata=[0, 25])
win.get_plot().add_item(image)
win.show()
win.exec_()
iofile = open(FNAME, "wb")
pickle.dump(image, iofile)
