How to use the gr.setscale function in gr
To help you get started, we’ve selected a few gr examples, based on popular ways it is used in public projects.
Secure your code as it's written. Use Snyk Code to scan source code in minutes - no build needed - and fix issues immediately.
sciapp / python-gr / gr / pygr / __init__.py View on Github 
def _getNDCPoly(self):
poly = []
if self._poly:
if self._axes:
coord = CoordConverter(self._axes.sizex, self._axes.sizey,
self._axes.getWindow())
gr.setscale(self._axes.scale)
for pWC in self._poly:
coord.setWCforPlotAxes(pWC.x, pWC.y, self._axes)
poly.append(coord.getNDC())
else:
poly = self._poly
return polydata = wf.readframes(SAMPLES)
while data != '' and len(data) == SAMPLES * wf.getsampwidth():
stream.write(data)
amplitudes = np.fromstring(data, dtype=np.short)
power = abs(np.fft.fft(amplitudes / 32768.0))[:SAMPLES/2]
gr.clearws()
spectrum[:, 63] = power[:256]
spectrum = np.roll(spectrum, 1)
gr.setcolormap(-113)
gr.setviewport(0.05, 0.95, 0.1, 1)
gr.setwindow(t * dt, (t + 63) * dt, 0, df)
gr.setscale(gr.OPTION_FLIP_X)
gr.setspace(0, 256, 30, 80)
gr3.surface((t + np.arange(64)) * dt, np.linspace(0, df, 256), spectrum, 4)
gr.setscale(0)
gr.axes3d(0.2, 0.2, 0, (t + 63) * dt, 0, 0, 5, 5, 0, -0.01)
gr.titles3d('t [s]', 'f [kHz]', '')
gr.updatews()
data = wf.readframes(SAMPLES)
t += 1def _colorbar(off=0.0, colors=256, label_name='zlabel'):
global _plt
gr.savestate()
viewport = _plt.kwargs['viewport']
zmin, zmax = _plt.kwargs['zrange']
gr.setwindow(0, 1, zmin, zmax)
gr.setviewport(viewport[1] + 0.02 + off, viewport[1] + 0.05 + off,
viewport[2], viewport[3])
if colors == 1:
data = [1000]
else:
data = [1000 + int(255 * i / (colors - 1)) for i in range(colors)]
gr.setlinecolorind(1)
gr.setscale(0)
if _plt.kwargs['scale'] & gr.OPTION_FLIP_Z:
gr.cellarray(0, 1, zmin, zmax, 1, colors, data)
else:
gr.cellarray(0, 1, zmax, zmin, 1, colors, data)
diag = ((viewport[1] - viewport[0])**2 + (viewport[3] - viewport[2])**2)**0.5
charheight = max(0.016 * diag, 0.012)
gr.setcharheight(charheight)
if _plt.kwargs['scale'] & gr.OPTION_Z_LOG:
if _plt.kwargs['scale'] & gr.OPTION_FLIP_Z:
gr.setscale(gr.OPTION_Y_LOG | gr.OPTION_FLIP_Y)
else:
gr.setscale(gr.OPTION_Y_LOG)
gr.axes(0, 2, 1, zmin, 0, 1, 0.005)
else:
if _plt.kwargs['scale'] & gr.OPTION_FLIP_Z:
gr.setscale(gr.OPTION_FLIP_Y)data = [1000]
else:
data = [1000 + int(255 * i / (colors - 1)) for i in range(colors)]
gr.setlinecolorind(1)
gr.setscale(0)
if _plt.kwargs['scale'] & gr.OPTION_FLIP_Z:
gr.cellarray(0, 1, zmin, zmax, 1, colors, data)
else:
gr.cellarray(0, 1, zmax, zmin, 1, colors, data)
diag = ((viewport[1] - viewport[0])**2 + (viewport[3] - viewport[2])**2)**0.5
charheight = max(0.016 * diag, 0.012)
gr.setcharheight(charheight)
if _plt.kwargs['scale'] & gr.OPTION_Z_LOG:
if _plt.kwargs['scale'] & gr.OPTION_FLIP_Z:
gr.setscale(gr.OPTION_Y_LOG | gr.OPTION_FLIP_Y)
else:
gr.setscale(gr.OPTION_Y_LOG)
gr.axes(0, 2, 1, zmin, 0, 1, 0.005)
else:
if _plt.kwargs['scale'] & gr.OPTION_FLIP_Z:
gr.setscale(gr.OPTION_FLIP_Y)
else:
gr.setscale(0)
ztick = 0.5 * gr.tick(zmin, zmax)
gr.axes(0, ztick, 1, zmin, 0, 1, 0.005)
label = _plt.kwargs.get(label_name, None)
if label:
diag = ((viewport[1] - viewport[0])**2 + (viewport[3] - viewport[2])**2)**0.5
charheight = max(0.018 * diag, 0.012)
gr.setcharheight(charheight)
gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_BASE)data = [1000 + int(255 * i / (colors - 1)) for i in range(colors)]
gr.setlinecolorind(1)
gr.setscale(0)
if _plt.kwargs['scale'] & gr.OPTION_FLIP_Z:
gr.cellarray(0, 1, zmin, zmax, 1, colors, data)
else:
gr.cellarray(0, 1, zmax, zmin, 1, colors, data)
diag = ((viewport[1] - viewport[0])**2 + (viewport[3] - viewport[2])**2)**0.5
charheight = max(0.016 * diag, 0.012)
gr.setcharheight(charheight)
if _plt.kwargs['scale'] & gr.OPTION_Z_LOG:
if _plt.kwargs['scale'] & gr.OPTION_FLIP_Z:
gr.setscale(gr.OPTION_Y_LOG | gr.OPTION_FLIP_Y)
else:
gr.setscale(gr.OPTION_Y_LOG)
gr.axes(0, 2, 1, zmin, 0, 1, 0.005)
else:
if _plt.kwargs['scale'] & gr.OPTION_FLIP_Z:
gr.setscale(gr.OPTION_FLIP_Y)
else:
gr.setscale(0)
ztick = 0.5 * gr.tick(zmin, zmax)
gr.axes(0, ztick, 1, zmin, 0, 1, 0.005)
label = _plt.kwargs.get(label_name, None)
if label:
diag = ((viewport[1] - viewport[0])**2 + (viewport[3] - viewport[2])**2)**0.5
charheight = max(0.018 * diag, 0.012)
gr.setcharheight(charheight)
gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_BASE)
gr.textext(viewport[1] + 0.035 + off, viewport[3] + 0.01, label)
gr.restorestate()while time.time() - start < 10:
try:
power = get_spectrum()
except (IOError):
continue
gr.clearws()
spectrum[:, 255] = power[:256]
spectrum = np.roll(spectrum, 1)
gr.setcolormap(-113)
gr.setviewport(0.05, 0.95, 0.1, 1)
gr.setwindow(t * dt, (t + 255) * dt, 0, df)
gr.setscale(gr.OPTION_FLIP_X)
gr.setspace(0, 200, 30, 80)
gr3.surface((t + np.arange(256)) * dt, np.linspace(0, df, 256), spectrum, 4)
gr.setscale(0)
gr.axes3d(0.2, 0.2, 0, (t + 255) * dt, 0, 0, 5, 5, 0, -0.01)
gr.titles3d('t [s]', 'f [kHz]', '')
gr.updatews()
t += 1ymin, ymax = (min(y), max(y))
else:
xmin, xmax, ymin, ymax = window
if scale & gr.OPTION_X_LOG == 0:
majorx = 5
xtick = gr.tick(xmin, xmax) / majorx
else:
xtick = majorx = 1
if scale & gr.OPTION_Y_LOG == 0:
majory = 5
ytick = gr.tick(ymin, ymax) /majory
else:
ytick = majory = 1
gr.setviewport(viewport[0], viewport[1], viewport[2], viewport[3])
gr.setwindow(xmin, xmax, ymin, ymax)
gr.setscale(scale)
if bgcolor != 0:
gr.setfillintstyle(1)
gr.setfillcolorind(bgcolor)
gr.fillrect(xmin, xmax, ymin, ymax)
charheight = 0.024 * (viewport[3] - viewport[2])
gr.setcharheight(charheight)
gr.axes(xtick, ytick, xmin, ymin, majorx, majory, 0.01)
gr.axes(xtick, ytick, xmax, ymax, -majorx, -majory, -0.01)
if grid:
gr.grid(xtick, ytick, xmax, ymax, majorx, majory)
gr.setlinetype(linetype)
gr.polyline(n, x, y)
if markertype != gr.MARKERTYPE_DOT:
gr.setmarkertype(markertype)
gr.polymarker(n, x, y)
if update:def getBoundingBox(self):
if self._axes:
gr.setscale(self._axes.scale)
coord = CoordConverter(self._axes.sizex, self._axes.sizey,
self._axes.getWindow())
coord.setWCforPlotAxes(self.x, self.y, self._axes)
p0 = coord.getNDC()
x, y = p0.x, p0.y
charHeight = self.charheight * self._axes.sizey
window = gr.inqwindow()
# set viewport and window to NDC to allow 'line-drawing'
# in all regions and in NDC coordinates
# if hideviewport is False.
gr.setviewport(0, self._axes.sizex, 0, self._axes.sizey)
gr.setwindow(0, self._axes.sizex, 0, self._axes.sizey)
else:
x, y = self.x, self.y
charHeight = self.charheightstart = time.time()
while time.time() - start < 10:
try:
power = get_spectrum()
except (IOError):
continue
gr.clearws()
spectrum[:, 255] = power[:256]
spectrum = np.roll(spectrum, 1)
gr.setcolormap(-113)
gr.setviewport(0.05, 0.95, 0.1, 1)
gr.setwindow(t * dt, (t + 255) * dt, 0, df)
gr.setscale(gr.OPTION_FLIP_X)
gr.setspace(0, 200, 30, 80)
gr3.surface((t + np.arange(256)) * dt, np.linspace(0, df, 256), spectrum, 4)
gr.setscale(0)
gr.axes3d(0.2, 0.2, 0, (t + 255) * dt, 0, 0, 5, 5, 0, -0.01)
gr.titles3d('t [s]', 'f [kHz]', '')
gr.updatews()
t += 1z_major_count = major_count
z_tick = gr.tick(z_min, z_max) / z_major_count
else:
z_tick = z_major_count = 1
if not scale & gr.OPTION_FLIP_Z:
zorg = (z_min, z_max)
else:
zorg = (z_max, z_min)
_plt.kwargs['zaxis'] = z_tick, zorg, z_major_count
rotation = _plt.kwargs.get('rotation', 40)
tilt = _plt.kwargs.get('tilt', 70)
gr.setspace(z_min, z_max, rotation, tilt)
_plt.kwargs['scale'] = scale
gr.setscale(scale)
