def draw(self, event):
self.bm = wx.EmptyBitmap(self.GetSizeTuple()[0], self.GetSizeTuple()[1])
dc = wx.MemoryDC(self.bm)
os.environ['GKSconid'] = "%x!%x" % (get_address(repr(self)), get_address(repr(dc)))
dc.SetBackground(wx.WHITE_BRUSH)
dc.Clear()
dc.DrawText("Surface Plot using wxWidgets ...", 15, 15)
x = range(1, 481)
y = range(1, 481)
w, h, d = gr.readimage(
os.path.join(os.path.dirname(os.path.realpath(__file__)),
'surf.png'))
z = map(lambda x: x & 0xff, d)
gr.setviewport(0, 1, 0, 1)
gr.setwindow(1, 480, 1, 480)
gr.setspace(1, 1000, 30, 80)
gr.setcolormap(3)
gr.surface(x, y, z, 6)
gr.contour(x, y, range(1), z, 0)
gr.updatews()
self.Refresh()
event.Skip()
def printDialog(self, documentName="qtgr-untitled"):
printer = QtGui.QPrinter(QtGui.QPrinter.HighResolution)
printer.setDocName(documentName)
painter = QtGui.QPainter()
dlg = QtGui.QPrintDialog(printer)
if dlg.exec_() == QtGui.QPrintDialog.Accepted:
painter.begin(printer)
os.environ["GKSconid"] = "%x!%x" % (sip.unwrapinstance(self),
sip.unwrapinstance(painter))
# upscaling to paper size and
# alignment (horizontal and vertical centering)
xscale = printer.pageRect().width() / float(self.width());
yscale = printer.pageRect().height() / float(self.height());
scale = min(xscale, yscale);
painter.translate(printer.paperRect().x() +
printer.pageRect().width() / 2,
printer.paperRect().y() +
printer.pageRect().height() / 2)
painter.scale(scale, scale);
painter.translate(-self.width() / 2, -self.height() / 2);
self.draw(True)
gr.updatews()
painter.end()
def paintEvent(self, ev):
self.painter = QtGui.QPainter()
self.painter.begin(self)
os.environ['GKSconid'] = "%x!%x" % (sip.unwrapinstance(self),
sip.unwrapinstance(self.painter))
gr.updatews()
self.painter.end()
def expose(self, widget, event):
cr = widget.window.cairo_create()
environ["GKS_WSTYPE"] = "142"
pc = PyCairoContext.from_address(id(cr))
environ['GKSconid'] = "%lu" % pc.ctx
cr.move_to(15, 15)
cr.set_font_size(14)
cr.show_text("Contour Plot using Gtk ...")
seed(0)
xd = uniform(-2, 2, 100)
yd = uniform(-2, 2, 100)
zd = xd * np.exp(-xd**2 - yd**2)
gr.setviewport(0.15, 0.95, 0.1, 0.9)
gr.setwindow(-2, 2, -2, 2)
gr.setspace(-0.5, 0.5, 0, 90)
gr.setmarkersize(1)
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
gr.setcharheight(0.024)
gr.settextalign(2, 0)
gr.settextfontprec(3, 0)
x, y, z = gr.gridit(xd, yd, zd, 200, 200)
h = np.linspace(-0.5, 0.5, 20)
gr.surface(x, y, z, 5)
gr.contour(x, y, h, z, 0)
gr.polymarker(xd, yd)
gr.axes(0.25, 0.25, -2, -2, 2, 2, 0.01)
gr.updatews()
def draw(mesh, x=None, y=None, z=None):
gr3.clear()
gr3.drawmesh(mesh, 1, (0,0,0), (0,0,1), (0,1,0), (1,1,1), (1,1,1))
gr3.drawslicemeshes(data, x=x, y=y, z=z)
gr.clearws()
gr3.drawimage(0, 1, 0, 1, 500, 500, gr3.GR3_Drawable.GR3_DRAWABLE_GKS)
gr.updatews()
def double_pendulum(theta, length, mass):
gr.clearws()
gr.setviewport(0, 1, 0, 1)
direction = []
position = [(0, 0, 0)]
for i in range(2):
direction.append(
(sin(theta[i]) * length[i] * 2, -cos(theta[i]) * length[i] * 2, 0))
position.append([position[-1][j] + direction[-1][j] for j in range(3)])
gr3.clear()
# draw pivot point
gr3.drawcylindermesh(1, (0, 0.2, 0), (0, 1, 0), (0.4, 0.4, 0.4), 0.4, 0.05)
gr3.drawcylindermesh(1, (0, 0.2, 0), (0, -1, 0), (0.4, 0.4, 0.4), 0.05,
0.2)
gr3.drawspheremesh(1, (0, 0, 0), (0.4, 0.4, 0.4), 0.05)
# draw rods
gr3.drawcylindermesh(2, position, direction, (0.6, 0.6, 0.6) * 2,
(0.05, 0.05), [l * 2 for l in length])
# draw bobs
gr3.drawspheremesh(2, position[1:], (1, 1, 1) * 2, [m * 0.2 for m in mass])
gr3.drawimage(0, 1, 0, 1, 500, 500, gr3.GR3_Drawable.GR3_DRAWABLE_GKS)
gr.updatews()
return
def draw(self):
"""
Draw the figure using the renderer
"""
gr.clearws()
renderer = RendererGR(self.figure.dpi)
self.figure.draw(renderer)
gr.updatews()
def paintEvent(self, event):
self._painter = QtGui.QPainter()
self._painter.begin(self)
self._painter.fillRect(0, 0, self.width(), self.height(), self._bgColor)
os.environ["GKSconid"] = getGKSConnectionId(self, self._painter)
self.draw(self._clear, self._update)
gr.updatews()
self._painter.end()
def draw(mesh, x=None, y=None, z=None):
gr3.clear()
gr3.drawmesh(mesh, 1, (0, 0, 0), (0, 0, 1), (0, 1, 0), (1, 1, 1),
(1, 1, 1))
gr3.drawslicemeshes(data, x=x, y=y, z=z)
gr.clearws()
gr3.drawimage(0, 1, 0, 1, 500, 500, gr3.GR3_Drawable.GR3_DRAWABLE_GKS)
gr.updatews()
def paintEvent(self, event):
self._painter = QtGui.QPainter()
self._painter.begin(self)
self._painter.fillRect(0, 0, self.width(), self.height(),
self._bgColor)
os.environ["GKSconid"] = getGKSConnectionId(self, self._painter)
self.draw(self._clear, self._update)
gr.updatews()
self._painter.end()
def paintEvent(self, ev):
self.painter.begin(self)
if have_pyside:
environ['GKSconid'] = "%x!%x" % (
int(shiboken.getCppPointer(self)[0]),
int(shiboken.getCppPointer(self.painter)[0]))
else:
environ["GKSconid"] = "%x!%x" % (unwrapinstance(self),
unwrapinstance(self.painter))
updatews()
self.painter.end()
def paintEvent(self, ev):
self.painter.begin(self)
if have_pyside:
environ['GKSconid'] = "%x!%x" % (
int(shiboken.getCppPointer(self)[0]),
int(shiboken.getCppPointer(self.painter)[0]))
else:
environ["GKSconid"] = "%x!%x" % (unwrapinstance(self),
unwrapinstance(self.painter))
updatews()
self.painter.end()
def plot_domain(color_func, f, re=(-1, 1), im=(-1, 1), N=100, n=15):
w = func_vals(f, re, im, N)
domc = color_func(w, n) * 255
width, height = domc.shape[:2]
domc = np.append(domc, np.ones((width, height, 1)) * 255, axis=2)
domc = domc.astype(np.uint8)
domc = domc.view('<i4')
gr.clearws()
gr.setviewport(0, 1, 0, 1)
gr.drawimage(0, 1, 0, 1, width, height, domc, model=gr.MODEL_HSV)
gr.updatews()
def draw(self):
"""
Draw the figure using the renderer
"""
flags = gr.inqregenflags()
if not flags & gr.MPL_SUPPRESS_CLEAR:
gr.clearws()
self.renderer.configure()
self.figure.draw(self.renderer)
if not flags & gr.MPL_POSTPONE_UPDATE:
gr.updatews()
def draw(self):
"""
Draw the figure using the renderer
"""
flags = gr.inqregenflags()
if not flags & gr.MPL_SUPPRESS_CLEAR:
gr.clearws()
self.renderer.configure()
self.figure.draw(self.renderer)
if not flags & gr.MPL_POSTPONE_UPDATE:
gr.updatews()
def plot_domain(color_func, f, re=[-1, 1], im=[-1, 1], N=100, n=15):
w = func_vals(f, re, im, N)
domc = color_func(w, n) * 255
width, height = domc.shape[:2]
domc = np.append(domc, np.ones((width, height, 1)) * 255, axis=2)
domc = domc.astype(np.uint8)
domc = domc.view("<i4")
gr.clearws()
gr.setviewport(0, 1, 0, 1)
gr.drawimage(0, 1, 0, 1, width, height, domc, model=gr.MODEL_HSV)
gr.updatews()
def pendulum(t, theta, omega, acceleration):
gr.clearws()
gr.setviewport(0, 1, 0, 1)
x, y = (sin(theta) * 3.0, -cos(theta) * 3.0)
gr3.clear()
# draw pivot point
gr3.drawspheremesh(1, (0, 0, 0), (0.4, 0.4, 0.4), 0.1)
# draw rod
gr3.drawcylindermesh(1, (0, 0, 0), (x, y, 0), (0.6, 0.6, 0.6), 0.05, 3.0)
# draw sphere
gr3.drawspheremesh(1, (x, y, 0), (1, 1, 1), 0.25)
# show angular velocity
V = 0.3 * omega - sign(omega) * 0.15
gr3.drawcylindermesh(1, (x, y, 0), (cos(theta), sin(theta), 0), (0, 0, 1),
0.05, V)
gr3.drawconemesh(1, (x + cos(theta) * V, y + sin(theta) * V, 0),
(-y, x, 0), (0, 0, 1), 0.1,
sign(omega) * 0.25)
# show angular acceleration
A = 0.3 * acceleration
gr3.drawcylindermesh(1, (x, y, 0), (sin(theta), cos(theta), 0), (1, 0, 0),
0.05, A)
gr3.drawconemesh(1, (x + sin(theta) * A, y + cos(theta) * A, 0),
(x, -y, 0), (1, 0, 0), 0.1, 0.25)
# draw GR3 objects
gr3.drawimage(0, 1, 0.15, 0.85, 500, 350,
gr3.GR3_Drawable.GR3_DRAWABLE_GKS)
gr.settextfontprec(2, gr.TEXT_PRECISION_STRING)
gr.setcharheight(0.024)
gr.settextcolorind(1)
gr.textext(0.05, 0.96, 'Damped Pendulum')
gr.mathtex(0.05, 0.9, '\\omega=\\dot{\\theta}')
gr.mathtex(0.05, 0.83,
'\\dot{\\omega}=-\\gamma\\omega-\\frac{g}{l}sin(\\theta)')
gr.setcharheight(0.020)
gr.textext(0.05, 0.20, 't:%7.2f' % t)
gr.textext(0.05, 0.16, '\\theta:%7.2f' % (theta / pi * 180))
gr.settextcolorind(4)
gr.textext(0.05, 0.12, '\\omega:%7.2f' % omega)
gr.settextcolorind(2)
gr.textext(0.05, 0.08, 'y_{A}:%6.2f' % acceleration)
gr.updatews()
return
def pendulum(theta, length, mass):
l = length[0] + length[1]
gr.clearws()
gr.setviewport(0, 1, 0, 1)
gr.setwindow(-l, l, -l, l)
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
gr.setmarkercolorind(86)
pivot = [0, 0.775] # draw pivot point
gr.fillarea([-0.2, 0.2, 0.2, -0.2], [0.75, 0.75, 0.8, 0.8])
for i in range(2):
x = [pivot[0], pivot[0] + sin(theta[i]) * length[i]]
y = [pivot[1], pivot[1] - cos(theta[i]) * length[i]]
gr.polyline(x, y) # draw rod
gr.setmarkersize(3 * mass[i])
gr.polymarker([x[1]], [y[1]]) # draw bob
pivot = [x[1], y[1]]
gr.updatews()
return
def pendulum(theta, length, mass):
l = length[0] + length[1]
gr.clearws()
gr.setviewport(0, 1, 0, 1)
gr.setwindow(-l, l, -l, l)
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
gr.setmarkercolorind(86)
pivot = [0, 0.775] # draw pivot point
gr.fillarea([-0.2, 0.2, 0.2, -0.2], [0.75, 0.75, 0.8, 0.8])
for i in range(2):
x = [pivot[0], pivot[0] + sin(theta[i]) * length[i]]
y = [pivot[1], pivot[1] - cos(theta[i]) * length[i]]
gr.polyline(x, y) # draw rod
gr.setmarkersize(3 * mass[i])
gr.polymarker([x[1]], [y[1]]) # draw bob
pivot = [x[1], y[1]]
gr.updatews()
return
def draw(
x,
x_extents=(-100, 100),
y_extents=(-100, 100),
landmarks=None,
observations=None,
particles=None,
weights=None,
ellipses=None,
fig=None,
):
"""Draw vehicle state x = [x, y, theta] on the map."""
xmin, xmax = x_extents
ymin, ymax = y_extents
tick_spacing = (xmax - xmin) / 20
if fig is not None:
print("saving", draw.i)
gr.beginprint("{}_{:03d}.pdf".format(fig, draw.i))
init_plot_window(xmin, xmax, ymin, ymax)
draw_vehicle(x)
if landmarks is not None:
draw_landmarks(landmarks)
if observations is not None:
draw_observation_lines(x, observations)
if particles is not None:
draw_particles(particles, weights=weights)
if ellipses is not None:
for i, ell in enumerate(ellipses):
draw_ellipse(ell, alpha=(0.1))
draw_axes(tick_spacing, xmin, ymin)
gr.updatews()
if fig is not None:
gr.endprint()
draw.i += 1
return
def pendulum(t, theta, omega, acceleration):
gr.clearws()
gr.setviewport(0, 1, 0, 1)
x, y = (sin(theta) * 3.0, -cos(theta) * 3.0)
gr3.clear()
# draw pivot point
gr3.drawspheremesh(1, (0, 0, 0), (0.4, 0.4, 0.4), 0.1)
# draw rod
gr3.drawcylindermesh(1, (0, 0, 0), (x, y, 0), (0.6, 0.6, 0.6), 0.05, 3.0)
# draw sphere
gr3.drawspheremesh(1, (x, y, 0), (1, 1, 1), 0.25)
# show angular velocity
V = 0.3 * omega - sign(omega) * 0.15
gr3.drawcylindermesh(1, (x, y, 0), (cos(theta), sin(theta), 0), (0, 0, 1),
0.05, V)
gr3.drawconemesh(1, (x + cos(theta) * V, y + sin(theta) * V, 0),
(-y, x, 0), (0, 0, 1), 0.1, sign(omega) * 0.25)
# show angular acceleration
A = 0.3 * acceleration
gr3.drawcylindermesh(1, (x, y, 0), (sin(theta), cos(theta), 0), (1, 0, 0),
0.05, A)
gr3.drawconemesh(1, (x + sin(theta) * A, y + cos(theta) * A, 0),
(x, -y, 0), (1, 0, 0), 0.1, 0.25)
# draw GR3 objects
gr3.drawimage(0, 1, 0.15, 0.85, 500, 350, gr3.GR3_Drawable.GR3_DRAWABLE_GKS)
gr.settextfontprec(2, gr.TEXT_PRECISION_STRING)
gr.setcharheight(0.024)
gr.settextcolorind(1)
gr.textext(0.05, 0.96, 'Damped Pendulum')
gr.mathtex(0.05, 0.9, '\\omega=\\dot{\\theta}')
gr.mathtex(0.05, 0.83, '\\dot{\\omega}=-\\gamma\\omega-\\frac{g}{l}sin(\\theta)')
gr.setcharheight(0.020)
gr.textext(0.05, 0.20, 't:%7.2f' % t)
gr.textext(0.05, 0.16, '\\theta:%7.2f' % (theta / pi * 180))
gr.settextcolorind(4)
gr.textext(0.05, 0.12, '\\omega:%7.2f' % omega)
gr.settextcolorind(2)
gr.textext(0.05, 0.08, 'y_{A}:%6.2f' % acceleration)
gr.updatews()
return
def pendulum(t, theta, omega, acceleration):
gr.clearws()
gr.setviewport(0, 1, 0, 1)
x = [0.5, 0.5 + np.sin(theta) * 0.4]
y = [0.8, 0.8 - np.cos(theta) * 0.4]
# draw pivot point
gr.fillarea([0.46, 0.54, 0.54, 0.46], [0.79, 0.79, 0.81, 0.81]),
gr.setlinecolorind(1)
gr.setlinewidth(2)
gr.polyline(x, y) # draw rod
gr.setmarkersize(5)
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
gr.setmarkercolorind(86)
gr.polymarker([x[1]], [y[1]]) # draw bob
gr.setlinecolorind(4)
V = 0.05 * omega # show angular velocity
gr.drawarrow(x[1], y[1], x[1] + V * np.cos(theta),
y[1] + V * np.sin(theta))
gr.setlinecolorind(2)
A = 0.05 * acceleration # show angular acceleration
gr.drawarrow(x[1], y[1], x[1] + A * np.sin(theta),
y[1] + A * np.cos(theta))
gr.settextfontprec(2, gr.TEXT_PRECISION_STRING)
gr.setcharheight(0.032)
gr.settextcolorind(1)
gr.textext(0.05, 0.95, 'Damped Pendulum')
gr.setcharheight(0.040)
gr.mathtex(0.4, 0.22, '\\omega=\\dot{\\theta}')
gr.mathtex(0.4, 0.1,
'\\dot{\\omega}=-\\gamma\\omega-\\frac{g}{l}sin(\\theta)')
gr.setcharheight(0.028)
gr.textext(0.05, 0.22, 't:%7.2f' % t)
gr.textext(0.05, 0.16, '\\theta:%7.2f' % (theta / np.pi * 180))
gr.settextcolorind(4)
gr.textext(0.05, 0.10, '\\omega:%7.2f' % omega)
gr.settextcolorind(2)
gr.textext(0.05, 0.04, 'y_{A}:%6.2f' % acceleration)
gr.updatews()
def write(self, image, device_pixel_ratio=1):
height, width = image.shape[:2]
gr.clearws()
if width > height:
xmax = 1.0
ymax = 1.0*height/width
else:
xmax = 1.0*width/height
ymax = 1.0
metric_width, metric_height, pixel_width, pixel_height = gr.inqdspsize()
meter_per_horizontal_pixel = metric_width/pixel_width
meter_per_vertical_pixel = metric_height/pixel_height
gr.setwsviewport(0, meter_per_horizontal_pixel*width*device_pixel_ratio, 0,
meter_per_vertical_pixel*height*device_pixel_ratio)
gr.setwswindow(0, xmax, 0, ymax)
gr.setviewport(0, xmax, 0, ymax)
gr.setwindow(0, xmax, 0, ymax)
gr.drawimage(0, xmax, 0, ymax, width*device_pixel_ratio, height*device_pixel_ratio, image.view('uint32'))
gr.updatews()
def pendulum(t, theta, omega, acceleration):
gr.clearws()
gr.setviewport(0, 1, 0, 1)
x = [0.5, 0.5 + sin(theta) * 0.4]
y = [0.8, 0.8 - cos(theta) * 0.4]
# draw pivot point
gr.fillarea([0.46, 0.54, 0.54, 0.46], [0.79, 0.79, 0.81, 0.81]),
gr.setlinecolorind(1)
gr.setlinewidth(2)
gr.polyline(x, y) # draw rod
gr.setmarkersize(5)
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
gr.setmarkercolorind(86)
gr.polymarker([x[1]], [y[1]]) # draw bob
gr.setlinecolorind(4)
V = 0.05 * omega # show angular velocity
gr.drawarrow(x[1], y[1], x[1] + V*cos(theta), y[1] + V*sin(theta))
gr.setlinecolorind(2)
A = 0.05 * acceleration # show angular acceleration
gr.drawarrow(x[1], y[1], x[1] + A*sin(theta), y[1] + A*cos(theta))
gr.settextfontprec(2, gr.TEXT_PRECISION_STRING)
gr.setcharheight(0.032)
gr.settextcolorind(1)
gr.textext(0.05, 0.95, 'Damped Pendulum')
gr.setcharheight(0.040)
gr.mathtex(0.4, 0.22, '\\omega=\\dot{\\theta}')
gr.mathtex(0.4, 0.1, '\\dot{\\omega}=-\\gamma\\omega-\\frac{g}{l}sin(\\theta)')
gr.setcharheight(0.028)
gr.textext(0.05, 0.22, 't:%7.2f' % t)
gr.textext(0.05, 0.16, '\\theta:%7.2f' % (theta / pi * 180))
gr.settextcolorind(4)
gr.textext(0.05, 0.10, '\\omega:%7.2f' % omega)
gr.settextcolorind(2)
gr.textext(0.05, 0.04, 'y_{A}:%6.2f' % acceleration)
gr.updatews()
def printDialog(self, documentName="qtgr-untitled"):
printer = QtGui.QPrinter(QtGui.QPrinter.HighResolution)
printer.setDocName(documentName)
painter = QtGui.QPainter()
dlg = QtGui.QPrintDialog(printer)
if dlg.exec_() == QtGui.QPrintDialog.Accepted:
painter.begin(printer)
os.environ["GKSconid"] = getGKSConnectionId(self, painter)
# upscaling to paper size and
# alignment (horizontal and vertical centering)
xscale = printer.pageRect().width() / float(self.width())
yscale = printer.pageRect().height() / float(self.height())
scale = min(xscale, yscale)
painter.translate(
printer.paperRect().x() + printer.pageRect().width() / 2,
printer.paperRect().y() + printer.pageRect().height() / 2)
painter.scale(scale, scale)
painter.translate(-self.width() / 2, -self.height() / 2)
self.draw(True)
gr.updatews()
painter.end()
def draw(x,
x_extents=(-100, 100),
y_extents=(-100, 100),
landmarks=None,
observations=None,
particles=None,
weights=None,
fig=None):
"""Draw vehicle state x = [x, y, theta] on the map."""
xmin, xmax = x_extents
ymin, ymax = y_extents
tick_spacing = (xmax - xmin) / 20
if fig is not None:
print('saving', draw.i)
gr.beginprint('{}_{}.pdf'.format(fig, draw.i))
init_plot_window(xmin, xmax, ymin, ymax)
draw_vehicle(x)
# draw_vehicle_ellipse(x, np.eye(3)) # this works; not needed yet
if landmarks is not None:
draw_landmarks(landmarks)
if observations is not None:
draw_observation_lines(x, observations)
if particles is not None:
draw_particles(particles, weights=weights)
draw_axes(tick_spacing, xmin, ymin)
gr.updatews()
if fig is not None:
gr.endprint()
draw.i += 1
return
def write(self, image, device_pixel_ratio=1):
height, width = image.shape[:2]
gr.clearws()
if width > height:
xmax = 1.0
ymax = 1.0 * height / width
else:
xmax = 1.0 * width / height
ymax = 1.0
metric_width, metric_height, pixel_width, pixel_height = gr.inqdspsize()
meter_per_horizontal_pixel = metric_width / pixel_width
meter_per_vertical_pixel = metric_height / pixel_height
gr.setwsviewport(
0,
meter_per_horizontal_pixel * width * device_pixel_ratio,
0,
meter_per_vertical_pixel * height * device_pixel_ratio,
)
gr.setwswindow(0, xmax, 0, ymax)
gr.setviewport(0, xmax, 0, ymax)
gr.setwindow(0, xmax, 0, ymax)
gr.drawimage(0, xmax, 0, ymax, width * device_pixel_ratio, height * device_pixel_ratio, image.view("uint32"))
gr.updatews()
def printDialog(self, documentName="qtgr-untitled"):
printer = QPrinter(QPrinter.HighResolution)
printer.setDocName(documentName)
painter = QPainter()
dlg = QPrintDialog(printer)
if dlg.exec_() == QPrintDialog.Accepted:
painter.begin(printer)
os.environ["GKSconid"] = getGKSConnectionId(self, painter)
# upscaling to paper size and
# alignment (horizontal and vertical centering)
xscale = printer.pageRect().width() / float(self.width())
yscale = printer.pageRect().height() / float(self.height())
scale = min(xscale, yscale)
painter.translate(printer.paperRect().x() +
printer.pageRect().width() / 2,
printer.paperRect().y() +
printer.pageRect().height() / 2)
painter.scale(scale, scale)
painter.translate(-self.width() / 2, -self.height() / 2)
gr.clearws()
self.draw()
gr.updatews()
painter.end()
spectrum = np.zeros((256, 256), dtype=float)
t = -255
dt = float(SAMPLES) / FS
df = FS / float(SAMPLES) / 2 / 2
start = 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 += 1
import gr
import gr3
gr.setviewport(0, 1, 0, 1)
for i in range(360):
gr.clearws()
gr3.clear()
gr3.drawmolecule('dna.xyz', bond_delta=2, tilt=45, rotation=i)
gr3.drawimage(0, 1, 0, 1, 500, 500, gr3.GR3_Drawable.GR3_DRAWABLE_GKS)
gr.settextcolorind(0)
gr.settextalign(gr.TEXT_HALIGN_CENTER, gr.TEXT_VALIGN_TOP)
gr.text(0.5, 1, "DNA rendered using gr3.drawmolecule")
gr.updatews()
def _plot_data(**kwargs):
global _plt
_plt.kwargs.update(kwargs)
if not _plt.args:
return
kind = _plt.kwargs.get('kind', 'line')
if _plt.kwargs['clear']:
gr.clearws()
if kind in ('imshow', 'isosurface'):
_set_viewport(kind, _plt.kwargs['subplot'])
elif not _plt.kwargs['ax']:
_set_viewport(kind, _plt.kwargs['subplot'])
_set_window(kind)
if kind == 'polar':
_draw_polar_axes()
else:
_draw_axes(kind)
gr.setcolormap(_plt.kwargs.get('colormap', gr.COLORMAP_COOLWARM))
gr.uselinespec(" ")
for x, y, z, c, spec in _plt.args:
gr.savestate()
if 'alpha' in _plt.kwargs:
gr.settransparency(_plt.kwargs['alpha'])
if kind == 'line':
mask = gr.uselinespec(spec)
if mask in (0, 1, 3, 4, 5):
gr.polyline(x, y)
if mask & 2:
gr.polymarker(x, y)
elif kind == 'scatter':
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
if z is not None or c is not None:
if c is not None:
c_min = c.min()
c_ptp = c.ptp()
for i in range(len(x)):
if z is not None:
gr.setmarkersize(z[i] / 100.0)
if c is not None:
c_index = 1000 + int(255 * (c[i]-c_min)/c_ptp)
gr.setmarkercolorind(c_index)
gr.polymarker([x[i]], [y[i]])
else:
gr.polymarker(x, y)
elif kind == 'stem':
gr.setlinecolorind(1)
gr.polyline(_plt.kwargs['window'][:2], [0, 0])
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
gr.uselinespec(spec)
for xi, yi in zip(x, y):
gr.polyline([xi, xi], [0, yi])
gr.polymarker(x, y)
elif kind == 'hist':
y_min = _plt.kwargs['window'][2]
for i in range(1, len(y)+1):
gr.setfillcolorind(989)
gr.setfillintstyle(gr.INTSTYLE_SOLID)
gr.fillrect(x[i-1], x[i], y_min, y[i-1])
gr.setfillcolorind(1)
gr.setfillintstyle(gr.INTSTYLE_HOLLOW)
gr.fillrect(x[i-1], x[i], y_min, y[i-1])
elif kind == 'contour':
z_min, z_max = _plt.kwargs['zrange']
gr.setspace(z_min, z_max, 0, 90)
h = [z_min + i/19*(z_max-z_min) for i in range(20)]
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 200, 200)
z.shape = np.prod(z.shape)
gr.contour(x, y, h, z, 1000)
_colorbar(0, 20)
elif kind == 'contourf':
z_min, z_max = _plt.kwargs['zrange']
gr.setspace(z_min, z_max, 0, 90)
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 200, 200)
z.shape = (200, 200)
if _plt.kwargs['scale'] & gr.OPTION_Z_LOG != 0:
z = np.log(z)
gr.surface(x, y, z, gr.OPTION_CELL_ARRAY)
_colorbar()
elif kind == 'hexbin':
nbins = _plt.kwargs.get('nbins', 40)
cntmax = gr.hexbin(x, y, nbins)
if cntmax > 0:
_plt.kwargs['zrange'] = (0, cntmax)
_colorbar()
elif kind == 'heatmap':
x_min, x_max, y_min, y_max = _plt.kwargs['window']
width, height = z.shape
cmap = _colormap()
icmap = np.zeros(256, np.uint32)
for i in range(256):
r, g, b, a = cmap[i]
icmap[i] = (int(r*255) << 0) + (int(g*255) << 8) + (int(b*255) << 16) + (int(a*255) << 24)
z_range = np.ptp(z)
if z_range > 0:
data = (z - np.min(z)) / z_range * 255
else:
data = np.zeros((width, height))
rgba = np.zeros((width, height), np.uint32)
for x in range(width):
for y in range(height):
rgba[x, y] = icmap[int(data[x, y])]
gr.drawimage(x_min, x_max, y_min, y_max, width, height, rgba)
_colorbar()
elif kind == 'wireframe':
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 50, 50)
gr.setfillcolorind(0)
z.shape = np.prod(z.shape)
gr.surface(x, y, z, gr.OPTION_FILLED_MESH)
_draw_axes(kind, 2)
elif kind == 'surface':
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 200, 200)
z.shape = np.prod(z.shape)
if _plt.kwargs.get('accelerate', True):
gr3.clear()
gr3.surface(x, y, z, gr.OPTION_COLORED_MESH)
else:
gr.surface(x, y, z, gr.OPTION_COLORED_MESH)
_draw_axes(kind, 2)
_colorbar(0.05)
elif kind == 'plot3':
gr.polyline3d(x, y, z)
_draw_axes(kind, 2)
elif kind == 'scatter3':
gr.polymarker3d(x, y, z)
_draw_axes(kind, 2)
elif kind == 'imshow':
_plot_img(z)
elif kind == 'isosurface':
_plot_iso(z)
elif kind == 'polar':
gr.uselinespec(spec)
_plot_polar(x, y)
elif kind == 'trisurf':
gr.trisurface(x, y, z)
_draw_axes(kind, 2)
_colorbar(0.05)
gr.restorestate()
if kind in ('line', 'scatter', 'stem') and 'labels' in _plt.kwargs:
_draw_legend()
if _plt.kwargs['update']:
gr.updatews()
if gr.isinline():
return gr.show()
def display():
global window_width, window_height, rx
gr3.setbackgroundcolor(1, 1, 1, 1)
# set up camera
gr3.setcameraprojectionparameters(45, 1, 200)
gr3.cameralookat(10 * math.cos(-rx * math.pi / 2),
10 * math.sin(-rx * math.pi / 2), 0, 0, 0, 0, 0, 0, 1)
gr3.drawimage(0, window_width, 0, window_height, window_width,
window_height, gr3.GR3_Drawable.GR3_DRAWABLE_OPENGL)
glViewport(0, 0, window_width, window_height)
glDisable(GL_LIGHTING)
glDisable(GL_DEPTH_TEST)
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
glLoadIdentity()
glMatrixMode(GL_PROJECTION)
glPushMatrix()
glLoadIdentity()
glColor4f(1, 0, 0, 1)
x, y = 0, 0.22
glRasterPos2f(x * 2 - 1, y * 2 - 1)
for c in u"This is a GLUT window in which GR3 renders":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, ord(c))
y -= 0.05
glRasterPos2f(x * 2 - 1, y * 2 - 1)
for c in u"a scene. You can drag the mouse to rotate the":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, ord(c))
y -= 0.05
glRasterPos2f(x * 2 - 1, y * 2 - 1)
for c in u"molecule or right-click to open a context menu.":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, ord(c))
glEnable(GL_DEPTH_TEST)
glEnable(GL_LIGHTING)
glMatrixMode(GL_MODELVIEW)
glPopMatrix()
glMatrixMode(GL_PROJECTION)
glPopMatrix()
glutSwapBuffers()
gr.clearws()
selntran(0)
gr3.setquality(4)
gr3.drawimage(0, 0.5, 0.5, 1, 250, 250, gr3.GR3_Drawable.GR3_DRAWABLE_GKS)
gr.settextcolorind(1)
gr.settextfontprec(6, 0)
x = list(range(5))
y = list(range(5))
nominalWindowHeight = 500.0
pointSize = (8, 9, 10, 11, 12, 14, 18, 24, 36)
s = "i\\hbar\\frac{\\partial\\psi}{\\partial t} = \\frac{\\hbar^2}{2m}\\nabla^2\\psi + V(\\mathbf{r})\\psi"
x = 0.9
y = 0.9
gr.settextalign(3, 3)
for i in range(8):
gr.setcharheight(pointSize[i] / nominalWindowHeight)
gr.mathtex(x, y, s)
y -= 4 * pointSize[i] / nominalWindowHeight
gr.setcharheight(0.1)
gr.mathtex(0.9, 0.05, "Hello World!")
gr.settextcolorind(8)
gr.text(0.9, 0.05, "Hello World!")
gr.updatews()
gr3.setcameraprojectionparameters(45, 1, 200)
gr3.cameralookat(10 * math.cos(-rx * math.pi / 2),
10 * math.sin(-rx * math.pi / 2), 0, 0, 0, 0, 0, 0, 1)
def display():
global window_width, window_height, rx
gr3.setbackgroundcolor(1,1,1,1)
# Kamera einstellen
gr3.setcameraprojectionparameters(45, 1, 200)
gr3.cameralookat(10*math.cos(-rx*math.pi/2), 10*math.sin(-rx*math.pi/2), 0, 0, 0, 0, 0, 0, 1)
gr3.drawimage(0, window_width, 0, window_height, window_width, window_height, gr3.GR3_Drawable.GR3_DRAWABLE_OPENGL)
glViewport(0,0,window_width,window_height);
glDisable(GL_LIGHTING)
glDisable(GL_DEPTH_TEST)
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
glLoadIdentity()
glMatrixMode(GL_PROJECTION)
glPushMatrix()
glLoadIdentity()
glColor4f(1,0,0,1)
x, y = 0, 0.22
glRasterPos2f(x*2-1,y*2-1)
for c in u"Dies ist ein GLUT-Fenster, in dem mit GR3 eine":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,ord(c))
y-=0.05
glRasterPos2f(x*2-1,y*2-1)
for c in u"Szene gerendert wird. Mit der Maus kann man":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,ord(c))
y-=0.05
glRasterPos2f(x*2-1,y*2-1)
for c in u"das dargestellte Molekül rotieren lassen.":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18,ord(c))
y-=0.04
glRasterPos2f(x*2-1,y*2-1)
for c in u"(Rechtsklick öffnet das Kontextmenü)":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12,ord(c))
glEnable(GL_DEPTH_TEST)
glEnable(GL_LIGHTING)
glMatrixMode(GL_MODELVIEW)
glPopMatrix()
glMatrixMode(GL_PROJECTION)
glPopMatrix()
glutSwapBuffers()
gr.clearws()
selntran(0)
gr3.setquality(4)
gr3.drawimage(0, 0.5, 0.5, 1, 250, 250, gr3.GR3_Drawable.GR3_DRAWABLE_GKS)
gr.settextcolorind(1)
gr.settextfontprec(6,0)
x = list(range(5))
y = list(range(5))
nominalWindowHeight = 500.0
pointSize = ( 8, 9, 10, 11, 12, 14, 18, 24, 36 )
s = "i\\hbar\\frac{\\partial\\psi}{\\partial t} = \\frac{\\hbar^2}{2m}\\nabla^2\\psi + V(\\mathbf{r})\\psi"
x = 0.9
y = 0.9;
gr.settextalign(3, 3)
for i in range(8):
gr.setcharheight(pointSize[i] / nominalWindowHeight)
gr.mathtex(x, y, s)
y -= 4 * pointSize[i] / nominalWindowHeight
gr.setcharheight(0.1)
gr.mathtex(0.9, 0.05, "Hello World!")
gr.settextcolorind(8)
gr.text(0.9, 0.05, "Hello World!")
gr.updatews()
gr3.setcameraprojectionparameters(45, 1, 200)
gr3.cameralookat(10*math.cos(-rx*math.pi/2), 10*math.sin(-rx*math.pi/2), 0, 0, 0, 0, 0, 0, 1)
def display():
global window_width, window_height, rx
gr3.setbackgroundcolor(1, 1, 1, 1)
# Kamera einstellen
gr3.setcameraprojectionparameters(45, 1, 200)
gr3.cameralookat(10 * math.cos(-rx * math.pi / 2),
10 * math.sin(-rx * math.pi / 2), 0, 0, 0, 0, 0, 0, 1)
gr3.drawimage(0, window_width, 0, window_height, window_width,
window_height, gr3.GR3_Drawable.GR3_DRAWABLE_OPENGL)
glViewport(0, 0, window_width, window_height)
glDisable(GL_LIGHTING)
glDisable(GL_DEPTH_TEST)
glMatrixMode(GL_MODELVIEW)
glPushMatrix()
glLoadIdentity()
glMatrixMode(GL_PROJECTION)
glPushMatrix()
glLoadIdentity()
glColor4f(1, 0, 0, 1)
x, y = 0, 0.22
glRasterPos2f(x * 2 - 1, y * 2 - 1)
for c in u"Dies ist ein GLUT-Fenster, in dem mit GR3 eine":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, ord(c))
y -= 0.05
glRasterPos2f(x * 2 - 1, y * 2 - 1)
for c in u"Szene gerendert wird. Mit der Maus kann man":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, ord(c))
y -= 0.05
glRasterPos2f(x * 2 - 1, y * 2 - 1)
for c in u"das dargestellte Molekül rotieren lassen.":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_18, ord(c))
y -= 0.04
glRasterPos2f(x * 2 - 1, y * 2 - 1)
for c in u"(Rechtsklick öffnet das Kontextmenü)":
glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, ord(c))
glEnable(GL_DEPTH_TEST)
glEnable(GL_LIGHTING)
glMatrixMode(GL_MODELVIEW)
glPopMatrix()
glMatrixMode(GL_PROJECTION)
glPopMatrix()
glutSwapBuffers()
gr.clearws()
selntran(0)
gr3.setquality(4)
gr3.drawimage(0, 0.5, 0.5, 1, 250, 250, gr3.GR3_Drawable.GR3_DRAWABLE_GKS)
gr.settextcolorind(1)
gr.settextfontprec(6, 0)
x = list(range(5))
y = list(range(5))
nominalWindowHeight = 500.0
pointSize = (8, 9, 10, 11, 12, 14, 18, 24, 36)
s = "i\\hbar\\frac{\\partial\\psi}{\\partial t} = \\frac{\\hbar^2}{2m}\\nabla^2\\psi + V(\\mathbf{r})\\psi"
x = 0.9
y = 0.9
gr.settextalign(3, 3)
for i in range(8):
gr.setcharheight(pointSize[i] / nominalWindowHeight)
gr.mathtex(x, y, s)
y -= 4 * pointSize[i] / nominalWindowHeight
gr.setcharheight(0.1)
gr.mathtex(0.9, 0.05, "Hello World!")
gr.settextcolorind(8)
gr.text(0.9, 0.05, "Hello World!")
gr.updatews()
gr3.setcameraprojectionparameters(45, 1, 200)
gr3.cameralookat(10 * math.cos(-rx * math.pi / 2),
10 * math.sin(-rx * math.pi / 2), 0, 0, 0, 0, 0, 0, 1)
def _plot_data(**kwargs):
global _plt
_plt.kwargs.update(kwargs)
if not _plt.args:
return
kind = _plt.kwargs.get('kind', 'line')
if _plt.kwargs['clear']:
gr.clearws()
if kind in ('imshow', 'isosurface'):
_set_viewport(kind, _plt.kwargs['subplot'])
elif not _plt.kwargs['ax']:
_set_viewport(kind, _plt.kwargs['subplot'])
_set_window(kind)
_draw_axes(kind)
gr.setcolormap(_plt.kwargs.get('colormap', gr.COLORMAP_COOLWARM))
gr.uselinespec(" ")
for x, y, z, c, spec in _plt.args:
gr.savestate()
if 'alpha' in _plt.kwargs:
gr.settransparency(_plt.kwargs['alpha'])
if kind == 'line':
mask = gr.uselinespec(spec)
if mask in (0, 1, 3, 4, 5):
gr.polyline(x, y)
if mask & 2:
gr.polymarker(x, y)
elif kind == 'scatter':
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
if z is not None or c is not None:
if c is not None:
c_min = c.min()
c_ptp = c.ptp()
for i in range(len(x)):
if z is not None:
gr.setmarkersize(z[i] / 100.0)
if c is not None:
c_index = 1000 + int(255 * (c[i]-c_min)/c_ptp)
gr.setmarkercolorind(c_index)
gr.polymarker([x[i]], [y[i]])
else:
gr.polymarker(x, y)
elif kind == 'stem':
gr.setlinecolorind(1)
gr.polyline(_plt.kwargs['window'][:2], [0, 0])
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
gr.uselinespec(spec)
for xi, yi in zip(x, y):
gr.polyline([xi, xi], [0, yi])
gr.polymarker(x, y)
elif kind == 'hist':
y_min = _plt.kwargs['window'][2]
for i in range(1, len(y)):
gr.setfillcolorind(989)
gr.setfillintstyle(gr.INTSTYLE_SOLID)
gr.fillrect(x[i-1], x[i], y_min, y[i])
gr.setfillcolorind(1)
gr.setfillintstyle(gr.INTSTYLE_HOLLOW)
gr.fillrect(x[i-1], x[i], y_min, y[i])
elif kind == 'contour':
z_min, z_max = _plt.kwargs['zrange']
gr.setspace(z_min, z_max, 0, 90)
h = [z_min + i/19*(z_max-z_min) for i in range(20)]
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 200, 200)
z.shape = np.prod(z.shape)
gr.contour(x, y, h, z, 1000)
_colorbar(0, 20)
elif kind == 'contourf':
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 200, 200)
z.shape = (200, 200)
if _plt.kwargs['scale'] & gr.OPTION_Z_LOG != 0:
z = np.log(z)
width, height = z.shape
data = np.array(1000+(z-z.min()) / z.ptp() * 255, np.int32)
x_min, x_max = _plt.kwargs['xrange']
y_min, y_max = _plt.kwargs['yrange']
gr.cellarray(x_min, x_max, y_max, y_min, width, height, data)
_colorbar()
elif kind == 'wireframe':
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 50, 50)
gr.setfillcolorind(0)
z.shape = np.prod(z.shape)
gr.surface(x, y, z, gr.OPTION_FILLED_MESH)
_draw_axes(kind, 2)
elif kind == 'surface':
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 200, 200)
z.shape = np.prod(z.shape)
if _plt.kwargs.get('accelerate', True):
gr3.surface(x, y, z, gr.OPTION_COLORED_MESH)
else:
gr.surface(x, y, z, gr.OPTION_COLORED_MESH)
_draw_axes(kind, 2)
_colorbar(0.05)
elif kind == 'plot3':
gr.polyline3d(x, y, z)
_draw_axes(kind, 2)
elif kind == 'scatter3':
gr.polymarker3d(x, y, z)
_draw_axes(kind, 2)
elif kind == 'imshow':
_plot_img(z)
elif kind == 'isosurface':
_plot_iso(z)
gr.restorestate()
if kind in ('line', 'scatter', 'stem') and 'labels' in _plt.kwargs:
_draw_legend()
if _plt.kwargs['update']:
gr.updatews()
if gr.isinline():
return gr.show()
def _plot_data(**kwargs):
global _plt
_plt.kwargs.update(kwargs)
if not _plt.args:
return
kind = _plt.kwargs.get('kind', 'line')
if _plt.kwargs['clear']:
gr.clearws()
if kind in ('imshow', 'isosurface'):
_set_viewport(kind, _plt.kwargs['subplot'])
elif not _plt.kwargs['ax']:
_set_viewport(kind, _plt.kwargs['subplot'])
_set_window(kind)
if kind == 'polar':
_draw_polar_axes()
else:
_draw_axes(kind)
if 'cmap' in _plt.kwargs:
warnings.warn('The parameter "cmap" has been replaced by "colormap". The value of "cmap" will be ignored.', stacklevel=3)
colormap = _plt.kwargs.get('colormap', gr.COLORMAP_VIRIDIS)
if colormap is not None:
gr.setcolormap(colormap)
gr.uselinespec(" ")
for x, y, z, c, spec in _plt.args:
gr.savestate()
if 'alpha' in _plt.kwargs:
gr.settransparency(_plt.kwargs['alpha'])
if kind == 'line':
mask = gr.uselinespec(spec)
if mask in (0, 1, 3, 4, 5):
gr.polyline(x, y)
if mask & 2:
gr.polymarker(x, y)
elif kind == 'scatter':
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
if z is not None or c is not None:
if c is not None:
c_min = c.min()
c_ptp = c.ptp()
for i in range(len(x)):
if z is not None:
gr.setmarkersize(z[i] / 100.0)
if c is not None:
c_index = 1000 + int(255 * (c[i]-c_min)/c_ptp)
gr.setmarkercolorind(c_index)
gr.polymarker([x[i]], [y[i]])
else:
gr.polymarker(x, y)
elif kind == 'stem':
gr.setlinecolorind(1)
gr.polyline(_plt.kwargs['window'][:2], [0, 0])
gr.setmarkertype(gr.MARKERTYPE_SOLID_CIRCLE)
gr.uselinespec(spec)
for xi, yi in zip(x, y):
gr.polyline([xi, xi], [0, yi])
gr.polymarker(x, y)
elif kind == 'hist':
y_min = _plt.kwargs['window'][2]
for i in range(1, len(y)+1):
gr.setfillcolorind(989)
gr.setfillintstyle(gr.INTSTYLE_SOLID)
gr.fillrect(x[i-1], x[i], y_min, y[i-1])
gr.setfillcolorind(1)
gr.setfillintstyle(gr.INTSTYLE_HOLLOW)
gr.fillrect(x[i-1], x[i], y_min, y[i-1])
elif kind == 'contour':
z_min, z_max = _plt.kwargs['zrange']
gr.setspace(z_min, z_max, 0, 90)
h = [z_min + i/19*(z_max-z_min) for i in range(20)]
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 200, 200)
z.shape = np.prod(z.shape)
gr.contour(x, y, h, z, 1000)
_colorbar(0, 20)
elif kind == 'contourf':
z_min, z_max = _plt.kwargs['zrange']
gr.setspace(z_min, z_max, 0, 90)
scale = _plt.kwargs['scale']
gr.setscale(scale)
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 200, 200)
z.shape = (200, 200)
gr.surface(x, y, z, gr.OPTION_CELL_ARRAY)
_colorbar()
elif kind == 'hexbin':
nbins = _plt.kwargs.get('nbins', 40)
cntmax = gr.hexbin(x, y, nbins)
if cntmax > 0:
_plt.kwargs['zrange'] = (0, cntmax)
_colorbar()
elif kind == 'heatmap':
x_min, x_max, y_min, y_max = _plt.kwargs['window']
width, height = z.shape
cmap = _colormap()
icmap = np.zeros(256, np.uint32)
for i in range(256):
r, g, b, a = cmap[i]
icmap[i] = (int(r*255) << 0) + (int(g*255) << 8) + (int(b*255) << 16) + (int(a*255) << 24)
z_min, z_max = _plt.kwargs.get('zlim', (np.min(z), np.max(z)))
if z_max < z_min:
z_max, z_min = z_min, z_max
if z_max > z_min:
data = (z - z_min) / (z_max - z_min) * 255
else:
data = np.zeros((width, height))
rgba = np.zeros((width, height), np.uint32)
for x in range(width):
for y in range(height):
rgba[x, y] = icmap[int(data[x, y])]
gr.drawimage(x_min, x_max, y_min, y_max, width, height, rgba)
_colorbar()
elif kind == 'wireframe':
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 50, 50)
gr.setfillcolorind(0)
z.shape = np.prod(z.shape)
gr.surface(x, y, z, gr.OPTION_FILLED_MESH)
_draw_axes(kind, 2)
elif kind == 'surface':
if x.shape == y.shape == z.shape:
x, y, z = gr.gridit(x, y, z, 200, 200)
z.shape = np.prod(z.shape)
if _plt.kwargs.get('accelerate', True):
gr3.clear()
gr3.surface(x, y, z, gr.OPTION_COLORED_MESH)
else:
gr.surface(x, y, z, gr.OPTION_COLORED_MESH)
_draw_axes(kind, 2)
_colorbar(0.05)
elif kind == 'plot3':
gr.polyline3d(x, y, z)
_draw_axes(kind, 2)
elif kind == 'scatter3':
gr.polymarker3d(x, y, z)
_draw_axes(kind, 2)
elif kind == 'imshow':
_plot_img(z)
elif kind == 'isosurface':
_plot_iso(z)
elif kind == 'polar':
gr.uselinespec(spec)
_plot_polar(x, y)
elif kind == 'trisurf':
gr.trisurface(x, y, z)
_draw_axes(kind, 2)
_colorbar(0.05)
elif kind == 'tricont':
zmin, zmax = _plt.kwargs['zrange']
levels = np.linspace(zmin, zmax, 20)
gr.tricontour(x, y, z, levels)
gr.restorestate()
if kind in ('line', 'scatter', 'stem') and 'labels' in _plt.kwargs:
_draw_legend()
if _plt.kwargs['update']:
gr.updatews()
if gr.isinline():
return gr.show()
def main():
ymin, ymax = 0.0, 5.0
timestep = 0.03
kp, ki, kd = 0.5, 8.0, 0.001
pid = PIDController(kp,
ki,
kd, (ymax - ymin) / 2,
timestep,
min_output=0,
max_output=1.0)
plant = EmaFilter(alpha=0.7)
init_plot_window(0, 1, 0, 1)
queue_size = 100
t = deque(maxlen=queue_size)
y1 = deque(maxlen=queue_size)
y2 = deque(maxlen=queue_size)
counter = 0
target = 0.0
t0 = time()
while True:
start = time()
if counter % 100 == 0:
target = np.random.randint(low=1, high=5)
pid.setpoint = target / ymax # Normalize to lie inside [0, 1]
# Simulation of measured input
plant_value = plant.ema(pid.output * (ymax - ymin))
pid.update(plant_value / (ymax - ymin), time())
t.append(time() - t0)
y1.append(target)
y2.append(pid.output * (ymax - ymin))
if counter > 0:
xmin, xmax = t[0], t[-1]
# ymin, ymax = min(min(y1), min(y2)), max(max(y1), max(y2))
gr.clearws()
gr.setwindow(xmin, xmax, ymin, ymax)
# Target
gr.setlinewidth(2)
linecolor(0, 0, 1.0)
gr.polyline(t, y1)
# Controller value
gr.setlinewidth(2)
linecolor(1.0, 0, 0)
gr.polyline(t, y2)
gr.setlinewidth(1)
linecolor(0, 0, 0)
draw_axes(1.0, 5.0 / 10, xmin, ymin, x_major=2, y_major=2)
gr.updatews()
counter += 1
sleep(max(timestep - (time() - start), 0.0))
# coding: utf8
from gr import selntran, settextfontprec, settextalign, setcharheight, clearws, setcharup, text, inqtext, fillarea, updatews
from math import pi, sin, cos
from numpy import linspace
s = 'Using inline math $\\frac{2hc^2}{\\lambda^5} \\frac{1}{e^{\\frac{hc}{\\lambda k_B T}} - 1}$ in GR text\nmixed with raw strings ' + r'$- \frac{{\hbar ^2}}{{2m}}\frac{{\partial ^2 \psi (x,t)}}{{\partial x^2 }} + U(x)\psi (x,t) = i\hbar \frac{{\partial \psi (x,t)}}{{\partial t}}$' + '\n– with line breaks\nand UTF-8 characters (ħπ),\nand rendered using GR\'s text attributes'
selntran(0)
settextfontprec(232, 3)
settextalign(2, 3)
setcharheight(0.02)
for phi in linspace(0, 2 * pi, 360):
clearws()
setcharup(sin(phi), cos(phi))
text(0.5, 0.5, s)
tbx, tby = inqtext(0.5, 0.5, s)
fillarea(tbx, tby)
updatews()