def make_plots(all_particles, disk_only, i=0):
for j, particles in enumerate([all_particles, disk_only]):
if HAS_PYNBODY:
temp_particles = particles.copy()
temp_particles.u = 1 | units.ms**2
temp = Gadget2()
temp.gas_particles.add_particles(temp_particles)
temp.commit_particles()
pynbody_column_density_plot(
temp.gas_particles, width=300 | units.kpc, units='m_p cm^-2',
vmin=17, vmax=23)
temp.stop()
else:
native_plot.gca().set_aspect("equal")
native_plot.xlim(-150, 150)
native_plot.ylim(-150, 150)
plot(particles.x.as_quantity_in(units.kpc),
particles.y.as_quantity_in(units.kpc), 'r.')
native_plot.savefig(
os.path.join(
"plots",
"plot_galaxy_merger_{0}_{1:=04}.png".format(
"disk" if j else "total", i)
)
)
native_plot.close()
def make_plots(all_particles, disk_only, i=0):
for j, particles in enumerate([all_particles, disk_only]):
if HAS_PYNBODY:
temp_particles = particles.copy()
temp_particles.u = 1 | units.ms**2
temp = Gadget2()
temp.gas_particles.add_particles(temp_particles)
temp.commit_particles()
pynbody_column_density_plot(temp.gas_particles,
width=300 | units.kpc,
units='m_p cm^-2',
vmin=17,
vmax=23)
temp.stop()
else:
native_plot.gca().set_aspect("equal")
native_plot.xlim(-150, 150)
native_plot.ylim(-150, 150)
plot(particles.x.as_quantity_in(units.kpc),
particles.y.as_quantity_in(units.kpc), 'r.')
native_plot.savefig(
os.path.join(
"plots", "plot_galaxy_merger_{0}_{1:=04}.png".format(
"disk" if j else "total", i)))
native_plot.close()
def evolve_model(self, end_time):
time_next_plot = self.time_last_plot + self._timestep
while time_next_plot < end_time:
super(PlottingHydrodynamics, self).__getattr__("evolve_model")(time_next_plot)
self._plot_function(self.gas_particles, **self._plot_function_arguments)
native_plot.savefig(self._next_filename())
native_plot.close()
self.time_last_plot = time_next_plot
time_next_plot = self.time_last_plot + self._timestep
super(PlottingHydrodynamics, self).__getattr__("evolve_model")(end_time)
def plot_plummer_model(N, M, R):
sph_particles = plummer_model(N, M, R)
x_label = "x [pc]"
y_label = "y [pc]"
figure, ax = figure_frame(x_label, y_label, xsize=12, ysize=12)
sph_particles_plot(sph_particles, min_size = 500, max_size = 500, alpha=0.01, view=(-50, 50, -50, 50)|units.parsec)
ax.set_axis_bgcolor('white')
pyplot.xlabel(x_label)
pyplot.ylabel(y_label)
native_plot.savefig("plummer_projected")
def group_plot(groups, no_group, figname="group_plot.png"):
colors = ["r", "g", "b", "y", "k", "w"]*100
for group, color in zip(groups, colors):
scatter(group.x, group.y, c=color)
if len(no_group):
scatter(no_group.x, no_group.y, c="m", marker="s")
native_plot.gca().set_aspect("equal", adjustable = "datalim")
native_plot.savefig(figname)
native_plot.clf()
def group_plot(groups, no_group, figname="group_plot.png"):
colors = ["r", "g", "b", "y", "k", "w"] * 100
for group, color in zip(groups, colors):
scatter(group.x, group.y, c=color)
if len(no_group):
scatter(no_group.x, no_group.y, c="m", marker="s")
native_plot.gca().set_aspect("equal", adjustable="datalim")
native_plot.savefig(figname)
native_plot.clf()
def plot_stellar_model(N, M, t):
sph_particles = stellar_model(N, M, t)
x_label = "x [R$_\odot$]"
y_label = "y [R$_\odot$]"
figure, ax = figure_frame(x_label, y_label, xsize=12, ysize=12)
sph_particles_plot(sph_particles, min_size = 500, max_size = 500, alpha=0.01, view=(-5, 5, -5, 5)|units.RSun)
# sph_particles_plot(sph_particles, min_size = 500, max_size = 500, alpha=0.01, view=(-2, 2, -2, 2)|units.RSun)
ax.set_axis_bgcolor('white')
pyplot.xlabel(x_label)
pyplot.ylabel(y_label)
native_plot.savefig("stellar_2MSun_projected")
def energy_evolution_plot(time, kinetic, potential, thermal, figname="energy_evolution.png"):
native_plot.subplot(211)
plot(time, kinetic, label='K')
plot(time, potential, label='U')
plot(time, thermal, label='Q')
plot(time, kinetic + potential + thermal, label='E')
xlabel('Time')
ylabel('Energy')
native_plot.legend(prop={'size':"x-small"}, loc=4)
native_plot.subplot(212)
plot(time, thermal, label='Q')
native_plot.savefig(figname)
native_plot.clf()
def energy_evolution_plot(time, kinetic, potential, thermal, figname="energy_evolution.png"):
native_plot.subplot(211)
plot(time, kinetic, label='K')
plot(time, potential, label='U')
plot(time, thermal, label='Q')
plot(time, kinetic + potential + thermal, label='E')
xlabel('Time')
ylabel('Energy')
native_plot.legend(prop={'size':"x-small"}, loc=4)
native_plot.subplot(212)
plot(time, thermal, label='Q')
native_plot.savefig(figname)
native_plot.clf()
def plot_plummer_model(N, M, R):
sph_particles = plummer_model(N, M, R)
x_label = "x [pc]"
y_label = "y [pc]"
figure, ax = figure_frame(x_label, y_label, xsize=12, ysize=12)
sph_particles_plot(sph_particles,
min_size=500,
max_size=500,
alpha=0.01,
view=(-50, 50, -50, 50) | units.parsec)
ax.set_axis_bgcolor('white')
pyplot.xlabel(x_label)
pyplot.ylabel(y_label)
native_plot.savefig("plummer_projected")
def plot_stellar_model(N, M, t):
sph_particles = stellar_model(N, M, t)
x_label = "x [R$_\odot$]"
y_label = "y [R$_\odot$]"
figure, ax = figure_frame(x_label, y_label, xsize=12, ysize=12)
sph_particles_plot(sph_particles,
min_size=500,
max_size=500,
alpha=0.01,
view=(-5, 5, -5, 5) | units.RSun)
# sph_particles_plot(sph_particles, min_size = 500, max_size = 500, alpha=0.01, view=(-2, 2, -2, 2)|units.RSun)
ax.set_axis_bgcolor('white')
pyplot.xlabel(x_label)
pyplot.ylabel(y_label)
native_plot.savefig("stellar_2MSun_projected")