def update_view(self):
self.img.clear()
self.img.setSelection(None)
self.lsx = None
self.lsy = None
self.wavenumbers = None
self.data_xs = None
self.data_imagepixels = None
if self.data and len(self.data.domain.attributes):
if self.attr_x is not None:
xat = self.data.domain[self.attr_x]
ndom = Domain([xat])
datam = Table(ndom, self.data)
coorx = datam.X[:, 0]
else:
coorx = np.arange(len(self.data))
self.lsx = lsx = values_to_linspace(coorx)
self.data_xs = coorx
self.wavenumbers = wavenumbers = getx(self.data)
self.lsy = lsy = values_to_linspace(wavenumbers)
# set data
imdata = np.ones((lsy[2], lsx[2])) * float("nan")
xindex = index_values(coorx, lsx)
yindex = index_values(wavenumbers, lsy)
for xind, d in zip(xindex, self.data.X):
imdata[yindex, xind] = d
self.data_imagepixels = xindex
self.img.setImage(imdata, autoLevels=False)
self.img.setLevels([0, 1])
self.update_levels()
self.update_color_schema()
# shift centres of the pixels so that the axes are useful
shiftx = _shift(lsx)
shifty = _shift(lsy)
left = lsx[0] - shiftx
bottom = lsy[0] - shifty
width = (lsx[1]-lsx[0]) + 2*shiftx
height = (lsy[1]-lsy[0]) + 2*shifty
self.img.setRect(QRectF(left, bottom, width, height))
self.refresh_img_selection()
def update_view(self):
self.img.clear()
self.img.setSelection(None)
self.legend.set_colors(None)
self.lsx = None
self.lsy = None
self.wavenumbers = None
self.data_xs = None
self.data_imagepixels = None
if self.data and len(self.data.domain.attributes):
if self.attr_x is not None:
xat = self.data.domain[self.attr_x]
ndom = Domain([xat])
datam = self.data.transform(ndom)
coorx = datam.X[:, 0]
else:
coorx = np.arange(len(self.data))
self.lsx = lsx = values_to_linspace(coorx)
self.data_xs = coorx
self.wavenumbers = wavenumbers = getx(self.data)
self.lsy = lsy = values_to_linspace(wavenumbers)
# set data
imdata = np.ones((lsy[2], lsx[2])) * float("nan")
xindex = index_values(coorx, lsx)
yindex = index_values(wavenumbers, lsy)
for xind, d in zip(xindex, self.data.X):
imdata[yindex, xind] = d
self.data_imagepixels = xindex
self.img.setImage(imdata, autoLevels=False)
self.update_levels()
self.update_color_schema()
# shift centres of the pixels so that the axes are useful
shiftx = _shift(lsx)
shifty = _shift(lsy)
left = lsx[0] - shiftx
bottom = lsy[0] - shifty
width = (lsx[1] - lsx[0]) + 2 * shiftx
height = (lsy[1] - lsy[0]) + 2 * shifty
self.img.setRect(QRectF(left, bottom, width, height))
self.refresh_img_selection()
def _points_at_pos(self, pos):
if self.data and self.lsx and self.lsy:
x, y = pos.x(), pos.y()
x_distance = np.abs(self.data_xs - x)
sel = (x_distance < _shift(self.lsx))
wavenumber_distance = np.abs(self.wavenumbers - y)
wavenumber_ind = np.argmin(wavenumber_distance)
return sel, wavenumber_ind
return None, None
def _points_at_pos(self, pos):
if self.data and self.lsx and self.lsy:
x, y = pos.x(), pos.y()
x_distance = np.abs(self.data_xs - x)
sel = (x_distance < _shift(self.lsx))
wavenumber_distance = np.abs(self.wavenumbers - y)
wavenumber_ind = np.argmin(wavenumber_distance)
return sel, wavenumber_ind
return None, None