def get_plot_x_section(obj, apply_lut=False):
"""
Return plot cross section along x-axis,
at the y value defined by 'obj', a Marker/AnnotatedPoint object
"""
_x0, y0 = get_object_coordinates(obj)
plot = obj.plot()
xmap = plot.canvasMap(plot.X_BOTTOM)
xc0, xc1 = xmap.p1(), xmap.p2()
_xc0, yc0 = axes_to_canvas(obj, 0, y0)
if plot.get_axis_direction("left"):
yc1 = yc0+1
else:
yc1 = yc0-1
try:
#TODO: eventually add an option to apply interpolation algorithm
data = get_image_from_qrect(plot, QPoint(xc0, yc0), QPoint(xc1, yc1),
apply_lut=apply_lut,
apply_interpolation=False)
except (ValueError, ZeroDivisionError, TypeError):
return np.array([]), np.array([])
y = data.mean(axis=0)
x0, _y0 = canvas_to_axes(obj, QPoint(xc0, yc0))
x1, _y1 = canvas_to_axes(obj, QPoint(xc1, yc1))
x = np.linspace(x0, x1, len(y))
return x, y
def get_plot_y_section(obj, apply_lut=False):
"""
Return plot cross section along y-axis,
at the x value defined by 'obj', a Marker/AnnotatedPoint object
"""
x0, _y0 = get_object_coordinates(obj)
plot = obj.plot()
ymap = plot.canvasMap(plot.Y_LEFT)
yc0, yc1 = ymap.p1(), ymap.p2()
if plot.get_axis_direction("left"):
yc1, yc0 = yc0, yc1
xc0, _yc0 = axes_to_canvas(obj, x0, 0)
xc1 = xc0 + 1
try:
data = get_image_from_qrect(plot,
QPoint(xc0, yc0),
QPoint(xc1, yc1),
apply_lut=apply_lut,
apply_interpolation=False)
except (ValueError, ZeroDivisionError, TypeError):
return np.array([]), np.array([])
y = data.mean(axis=1)
_x0, y0 = canvas_to_axes(obj, QPoint(xc0, yc0))
_x1, y1 = canvas_to_axes(obj, QPoint(xc1, yc1))
x = np.linspace(y0, y1, len(y))
return x, y
def get_plot_x_section(obj, apply_lut=False):
"""
Return plot cross section along x-axis,
at the y value defined by 'obj', a Marker/AnnotatedPoint object
"""
_x0, y0 = get_object_coordinates(obj)
plot = obj.plot()
xmap = plot.canvasMap(plot.X_BOTTOM)
xc0, xc1 = xmap.p1(), xmap.p2()
_xc0, yc0 = axes_to_canvas(obj, 0, y0)
if plot.get_axis_direction("left"):
yc1 = yc0 + 1
else:
yc1 = yc0 - 1
try:
#TODO: eventually add an option to apply interpolation algorithm
data = get_image_from_qrect(plot,
QPoint(xc0, yc0),
QPoint(xc1, yc1),
apply_lut=apply_lut,
apply_interpolation=False)
except (ValueError, ZeroDivisionError, TypeError):
return np.array([]), np.array([])
y = data.mean(axis=0)
x0, _y0 = canvas_to_axes(obj, QPoint(xc0, yc0))
x1, _y1 = canvas_to_axes(obj, QPoint(xc1, yc1))
x = np.linspace(x0, x1, len(y))
return x, y
def move_local_shape(self, old_pos, new_pos):
old_pt = canvas_to_axes(self, old_pos)
new_pt = canvas_to_axes(self, new_pos)
self.shape.move_shape(old_pt, new_pt)
self.set_label_position()
if self.plot():
self.plot().SIG_ITEM_MOVED.emit(self, *(old_pt + new_pt))
self.plot().SIG_ANNOTATION_CHANGED.emit(self)
def move_local_shape(self, old_pos, new_pos):
old_pt = canvas_to_axes(self, old_pos)
new_pt = canvas_to_axes(self, new_pos)
self.shape.move_shape(old_pt, new_pt)
self.set_label_position()
if self.plot():
self.plot().emit(SIG_ITEM_MOVED, self, *(old_pt+new_pt))
self.plot().emit(SIG_ANNOTATION_CHANGED, self)
def get_plot_y_section(obj, apply_lut=False):
"""
Return plot cross section along y-axis,
at the x value defined by 'obj', a Marker/AnnotatedPoint object
"""
x0, _y0 = get_object_coordinates(obj)
plot = obj.plot()
ymap = plot.canvasMap(plot.Y_LEFT)
yc0, yc1 = ymap.p1(), ymap.p2()
if plot.get_axis_direction("left"):
yc1, yc0 = yc0, yc1
xc0, _yc0 = axes_to_canvas(obj, x0, 0)
xc1 = xc0+1
try:
data = get_image_from_qrect(plot, QPoint(xc0, yc0), QPoint(xc1, yc1),
apply_lut=apply_lut,
apply_interpolation=False)
except (ValueError, ZeroDivisionError, TypeError):
return np.array([]), np.array([])
y = data.mean(axis=1)
_x0, y0 = canvas_to_axes(obj, QPoint(xc0, yc0))
_x1, y1 = canvas_to_axes(obj, QPoint(xc1, yc1))
x = np.linspace(y0, y1, len(y))
return x, y
def __init__(self, obj, pos1, pos2):
self.obj = obj
from guiqwt.baseplot import canvas_to_axes
self.coords1 = canvas_to_axes(obj, pos1)
self.coords2 = canvas_to_axes(obj, pos2)
def __init__(self, obj, pos1, pos2):
self.obj = obj
from guiqwt.baseplot import canvas_to_axes
self.coords1 = canvas_to_axes(obj, pos1)
self.coords2 = canvas_to_axes(obj, pos2)
