def main():
"""
The basic algorithm for a LinkCA model is as follows:
Initialize
Set grid size, run duration, and plotting/output parameters
Set up node states
Set up link transitions
Create and initialize the starting grid
Create the CA model
Create a CA plotter
Set up (custom) boundary-control parameters
Set up any other custom things
Run
Optionally report output to user in real time
Figure out when the next interruption will be
Run until that interruption
If it's time to plot, do so
If it's time to control boundaries, do so
If it's time for file output, do so
Finalize
Do the last plot, if applicable
Do any custom post-processing
"""
# INITIALIZE
# User-defined parameters: general
nr = 129
nc = 129
opt_screen_display = True
plot_interval = 1
opt_file_output = False
file_output_interval = 1
run_duration = 127
report_interval = 5.0 # report interval, in real-time seconds
# User-defined parameters: boundary control
boundary_update_interval = 0.1 # interval for baselevel lowering
initial_hill_height = nr - 3 # must be < nr-1
# Initialize real time and intervals for reporting, plotting, and file output
current_real_time = time.time()
next_report = current_real_time + report_interval
never = run_duration + 1 # anything that scheduled for later than run_duration never happens!
if opt_screen_display:
next_plot = plot_interval
else:
next_plot = never
if opt_file_output:
next_file_write = file_output_interval
else:
next_file_write = never
# Custom: initialize information for baselevel lowering
next_boundary_update = boundary_update_interval
left_edge_alinks = (nc - 2) * (nr - 1) + (nc - 1) * numpy.arange(nr - 2)
right_edge_alinks = left_edge_alinks + (nc - 2)
bl_height = initial_hill_height
bl_left_alink = left_edge_alinks[bl_height - 1]
bl_right_alink = right_edge_alinks[bl_height - 1]
# Create grid and set up boundaries
mg = RasterModelGrid(nr, nc, 1.0)
# Set up node states and pair transitions
ns_dict = {0: 'air', 1: 'mobile left', 2: 'mobile right', 3: 'immobile'}
xn_list = setup_transition_list()
# Create the node-state map and attach it to the grid
node_state_grid = mg.add_zeros('node', 'node_state', dtype=int)
# Custom: set initial values in the node-state grid
(initial_hill, ) = numpy.where(mg.node_y <= initial_hill_height)
node_state_grid[initial_hill] = 3
# Custom: Set the left and right boundary conditions
left_side_ids = mg.left_edge_node_ids()
right_side_ids = mg.right_edge_node_ids()
# Create the CA model
ca = LinkCellularAutomaton(mg, ns_dict, xn_list, node_state_grid)
# Debug output if needed
if _DEBUG:
n = ca.grid.number_of_nodes
for r in range(ca.grid.number_of_node_rows):
for c in range(ca.grid.number_of_node_columns):
n -= 1
print '{0:.0f}'.format(ca.node_state[n]),
print
# Create a CAPlotter object to handle screen display
if opt_screen_display:
ca_plotter = CAPlotter(ca)
# RUN
current_time = 0.0
while current_time < run_duration:
# Once in a while, print out simulation and real time to let the user
# know that the sim is running ok
current_real_time = time.time()
if current_real_time >= next_report:
print 'Current sim time', current_time, '(', 100 * current_time / run_duration, '%)'
next_report = current_real_time + report_interval
# Find out when the next interruption (for plotting, boundary control,
# file I/O, etc.) will be
next_interrupt = min(next_plot, next_file_write, next_boundary_update,
run_duration)
# Run the model forward in time until the next output step
ca.run(next_interrupt, ca.node_state,
plot_each_transition=False) #, plotter=ca_plotter)
# Update the current time
current_time = next_interrupt
# Plot the current grid
if current_time >= next_plot:
ca_plotter.update_plot()
next_plot += plot_interval
# Write the current grid to file
if current_time >= next_file_write:
print 'FILE OUTPUT NOT YET IMPLEMENTED'
next_file_write += file_output_interval
# Custom boundary control: baselevel lowering
if current_time >= next_boundary_update:
#print 'doing bl drop at time', current_time
next_boundary_update += boundary_update_interval
if bl_height > 0:
ca.node_state[left_side_ids[
bl_height]] = 0 # turn the former baselevel to air
ca.node_state[right_side_ids[
bl_height]] = 0 # turn the former baselevel to air
ca.update_link_state(bl_left_alink, 0, current_time)
ca.update_link_state(bl_right_alink, 0, current_time)
bl_height -= 1
bl_left_alink = left_edge_alinks[bl_height - 1]
bl_right_alink = right_edge_alinks[bl_height - 1]
# for debugging
if _DEBUG:
n = ca.grid.number_of_nodes
for r in range(ca.grid.number_of_node_rows):
for c in range(ca.grid.number_of_node_columns):
n -= 1
print '{0:.0f}'.format(ca.node_state[n]),
print
# FINALIZE
# Plot
if opt_screen_display:
ca_plotter.finalize()
# Custom post-processing
z = extract_hillslope_profile(mg.node_vector_to_raster(ca.node_state))
#numpy.savetxt('h0822-01-u125.txt',z)
print 'PEAK ELEV = ', numpy.amax(z)
def main():
# INITIALIZE
# User-defined parameters
nr = 64
nc = 130
plot_interval = 1
run_duration = 100
report_interval = 5.0 # report interval, in real-time seconds
baselevel_lowering_interval = 1
initial_hill_height = 60
# Initialize real time
current_real_time = time.time()
next_report = current_real_time + report_interval
# Initialize information for baselevel lowering
next_bl_drop = baselevel_lowering_interval
left_edge_alinks = (nc-2)*(nr-1)+(nc-1)*numpy.arange(nr-2)
#print left_edge_alinks
right_edge_alinks = left_edge_alinks + (nc-2)
#print right_edge_alinks
bl_height = initial_hill_height
bl_left_alink = left_edge_alinks[bl_height-1]
bl_right_alink = right_edge_alinks[bl_height-1]
#print 'bllal',bl_left_alink,'blral',bl_right_alink
# Create grid and set up boundaries
mg = RasterModelGrid(nr, nc, 1.0)
# Transition data here represent a body of fractured rock, with rock
# represented by nodes with state 0, and saprolite (weathered rock)
# represented by nodes with state 1. Node pairs (links) with 0-1 or 1-0
# can undergo a transition to 1-1, representing chemical weathering of the
# rock.
ns_dict = { 0 : 'air', 1 : 'mobile left', 2 : 'mobile right', 3 : 'immobile' }
xn_list = setup_transition_list()
# Create the node-state map and attach it to the grid
node_state_grid = mg.add_zeros('node', 'node_state', dtype=int)
(initial_hill,) = numpy.where(mg.node_y<=initial_hill_height)
node_state_grid[initial_hill] = 3
above_dam = numpy.where(mg.node_y>130-mg.node_x)[0]
node_state_grid[above_dam] = 0
# Set the left and right boundary conditions
left_side_ids = mg.left_edge_node_ids()
right_side_ids = mg.right_edge_node_ids()
#node_state_grid[mg.left_edge_node_ids()] = 0
#node_state_grid[mg.right_edge_node_ids()] = 0
# Remember the IDs of the lower row of nodes, so we can keep them set to
# state 3 when we do uplift
#bottom_row = mg.bottom_edge_node_ids()
# Create the CA model
ca = LinkCellularAutomaton(mg, ns_dict, xn_list, node_state_grid)
# Debug output if needed
if _DEBUG:
n = ca.grid.number_of_nodes
for r in range(ca.grid.number_of_node_rows):
for c in range(ca.grid.number_of_node_columns):
n -= 1
print('{0:.0f}'.format(ca.node_state[n]), end=' ')
print()
ca_plotter = CAPlotter(ca)
# RUN
current_time = 0.0
while current_time < run_duration:
# Once in a while, print out simulation and real time to let the user
# know that the sim is running ok
current_real_time = time.time()
if current_real_time >= next_report:
print('Current sim time',current_time,'(',100*current_time/run_duration,'%)')
next_report = current_real_time + report_interval
# Run the model forward in time until the next output step
ca.run(current_time+plot_interval, ca.node_state,
plot_each_transition=False) #, plotter=ca_plotter)
current_time += plot_interval
# Plot the current grid
ca_plotter.update_plot()
# Uplift
if current_time >= next_bl_drop and bl_height>0:
#print 'doing bl drop at time', current_time
next_bl_drop += baselevel_lowering_interval
ca.node_state[left_side_ids[bl_height]] = 0 # turn the former baselevel to air
ca.node_state[right_side_ids[bl_height]] = 0 # turn the former baselevel to air
ca.update_link_state(bl_left_alink, 0, current_time)
ca.update_link_state(bl_right_alink, 0, current_time)
bl_height -= 1
#ca.node_state[left_side_ids[bl_height]] = 3 # turn the new baselevel to regolith
#ca.node_state[right_side_ids[bl_height]] = 3 # turn the new baselevel to regolith
bl_left_alink = left_edge_alinks[bl_height-1]
bl_right_alink = right_edge_alinks[bl_height-1]
#ca.update_link_state(bl_left_alink, 0, current_time)
#ca.update_link_state(bl_right_alink, 0, current_time)
#ca.node_state[left_side_ids[:bl_height]] = 3
#ca.node_state[left_side_ids[bl_height:]] = 0
#ca.node_state[right_side_ids[:bl_height]] = 3
#ca.node_state[right_side_ids[bl_height:]] = 0
#next_uplift += uplift_interval
#ca.grid.roll_nodes_ud('node_state', 1, interior_only=True)
#ca.node_state[bottom_row] = 3
#print 'after roll:',ca.node_state
# for debugging
if _DEBUG:
n = ca.grid.number_of_nodes
for r in range(ca.grid.number_of_node_rows):
for c in range(ca.grid.number_of_node_columns):
n -= 1
print('{0:.0f}'.format(ca.node_state[n]), end=' ')
print()
# FINALIZE
# Plot
ca_plotter.finalize()
z = extract_hillslope_profile(mg.node_vector_to_raster(ca.node_state))
numpy.savetxt('h0822-01-u125.txt',z)
print('PEAK ELEV = ',numpy.amax(z))
def main():
"""
The basic algorithm for a LinkCA model is as follows:
Initialize
Set grid size, run duration, and plotting/output parameters
Set up node states
Set up link transitions
Create and initialize the starting grid
Create the CA model
Create a CA plotter
Set up (custom) boundary-control parameters
Set up any other custom things
Run
Optionally report output to user in real time
Figure out when the next interruption will be
Run until that interruption
If it's time to plot, do so
If it's time to control boundaries, do so
If it's time for file output, do so
Finalize
Do the last plot, if applicable
Do any custom post-processing
"""
# INITIALIZE
# User-defined parameters: general
nr = 129
nc = 129
opt_screen_display = True
plot_interval = 1
opt_file_output = False
file_output_interval = 1
run_duration = 127
report_interval = 5.0 # report interval, in real-time seconds
# User-defined parameters: boundary control
boundary_update_interval = 0.1 # interval for baselevel lowering
initial_hill_height = nr-3 # must be < nr-1
# Initialize real time and intervals for reporting, plotting, and file output
current_real_time = time.time()
next_report = current_real_time + report_interval
never = run_duration+1 # anything that scheduled for later than run_duration never happens!
if opt_screen_display:
next_plot = plot_interval
else:
next_plot = never
if opt_file_output:
next_file_write = file_output_interval
else:
next_file_write = never
# Custom: initialize information for baselevel lowering
next_boundary_update = boundary_update_interval
left_edge_alinks = (nc-2)*(nr-1)+(nc-1)*numpy.arange(nr-2)
right_edge_alinks = left_edge_alinks + (nc-2)
bl_height = initial_hill_height
bl_left_alink = left_edge_alinks[bl_height-1]
bl_right_alink = right_edge_alinks[bl_height-1]
# Create grid and set up boundaries
mg = RasterModelGrid(nr, nc, 1.0)
# Set up node states and pair transitions
ns_dict = { 0 : 'air', 1 : 'mobile left', 2 : 'mobile right', 3 : 'immobile' }
xn_list = setup_transition_list()
# Create the node-state map and attach it to the grid
node_state_grid = mg.add_zeros('node', 'node_state', dtype=int)
# Custom: set initial values in the node-state grid
(initial_hill,) = numpy.where(mg.node_y<=initial_hill_height)
node_state_grid[initial_hill] = 3
# Custom: Set the left and right boundary conditions
left_side_ids = mg.left_edge_node_ids()
right_side_ids = mg.right_edge_node_ids()
# Create the CA model
ca = LinkCellularAutomaton(mg, ns_dict, xn_list, node_state_grid)
# Debug output if needed
if _DEBUG:
n = ca.grid.number_of_nodes
for r in range(ca.grid.number_of_node_rows):
for c in range(ca.grid.number_of_node_columns):
n -= 1
print '{0:.0f}'.format(ca.node_state[n]),
print
# Create a CAPlotter object to handle screen display
if opt_screen_display:
ca_plotter = CAPlotter(ca)
# RUN
current_time = 0.0
while current_time < run_duration:
# Once in a while, print out simulation and real time to let the user
# know that the sim is running ok
current_real_time = time.time()
if current_real_time >= next_report:
print 'Current sim time',current_time,'(',100*current_time/run_duration,'%)'
next_report = current_real_time + report_interval
# Find out when the next interruption (for plotting, boundary control,
# file I/O, etc.) will be
next_interrupt = min(next_plot, next_file_write, next_boundary_update, run_duration)
# Run the model forward in time until the next output step
ca.run(next_interrupt, ca.node_state,
plot_each_transition=False) #, plotter=ca_plotter)
# Update the current time
current_time = next_interrupt
# Plot the current grid
if current_time >= next_plot:
ca_plotter.update_plot()
next_plot += plot_interval
# Write the current grid to file
if current_time >= next_file_write:
print 'FILE OUTPUT NOT YET IMPLEMENTED'
next_file_write += file_output_interval
# Custom boundary control: baselevel lowering
if current_time >= next_boundary_update:
#print 'doing bl drop at time', current_time
next_boundary_update += boundary_update_interval
if bl_height>0:
ca.node_state[left_side_ids[bl_height]] = 0 # turn the former baselevel to air
ca.node_state[right_side_ids[bl_height]] = 0 # turn the former baselevel to air
ca.update_link_state(bl_left_alink, 0, current_time)
ca.update_link_state(bl_right_alink, 0, current_time)
bl_height -= 1
bl_left_alink = left_edge_alinks[bl_height-1]
bl_right_alink = right_edge_alinks[bl_height-1]
# for debugging
if _DEBUG:
n = ca.grid.number_of_nodes
for r in range(ca.grid.number_of_node_rows):
for c in range(ca.grid.number_of_node_columns):
n -= 1
print '{0:.0f}'.format(ca.node_state[n]),
print
# FINALIZE
# Plot
if opt_screen_display:
ca_plotter.finalize()
# Custom post-processing
z = extract_hillslope_profile(mg.node_vector_to_raster(ca.node_state))
#numpy.savetxt('h0822-01-u125.txt',z)
print 'PEAK ELEV = ',numpy.amax(z)
def main():
# INITIALIZE
# User-defined parameters
nr = 64
nc = 130
plot_interval = 1
run_duration = 100
report_interval = 5.0 # report interval, in real-time seconds
baselevel_lowering_interval = 1
initial_hill_height = 60
# Initialize real time
current_real_time = time.time()
next_report = current_real_time + report_interval
# Initialize information for baselevel lowering
next_bl_drop = baselevel_lowering_interval
left_edge_alinks = (nc - 2) * (nr - 1) + (nc - 1) * numpy.arange(nr - 2)
#print left_edge_alinks
right_edge_alinks = left_edge_alinks + (nc - 2)
#print right_edge_alinks
bl_height = initial_hill_height
bl_left_alink = left_edge_alinks[bl_height - 1]
bl_right_alink = right_edge_alinks[bl_height - 1]
#print 'bllal',bl_left_alink,'blral',bl_right_alink
# Create grid and set up boundaries
mg = RasterModelGrid(nr, nc, 1.0)
# Transition data here represent a body of fractured rock, with rock
# represented by nodes with state 0, and saprolite (weathered rock)
# represented by nodes with state 1. Node pairs (links) with 0-1 or 1-0
# can undergo a transition to 1-1, representing chemical weathering of the
# rock.
ns_dict = {0: 'air', 1: 'mobile left', 2: 'mobile right', 3: 'immobile'}
xn_list = setup_transition_list()
# Create the node-state map and attach it to the grid
node_state_grid = mg.add_zeros('node', 'node_state', dtype=int)
(initial_hill, ) = numpy.where(mg.node_y <= initial_hill_height)
node_state_grid[initial_hill] = 3
above_dam = numpy.where(mg.node_y > 130 - mg.node_x)[0]
node_state_grid[above_dam] = 0
# Set the left and right boundary conditions
left_side_ids = mg.left_edge_node_ids()
right_side_ids = mg.right_edge_node_ids()
#node_state_grid[mg.left_edge_node_ids()] = 0
#node_state_grid[mg.right_edge_node_ids()] = 0
# Remember the IDs of the lower row of nodes, so we can keep them set to
# state 3 when we do uplift
#bottom_row = mg.bottom_edge_node_ids()
# Create the CA model
ca = LinkCellularAutomaton(mg, ns_dict, xn_list, node_state_grid)
# Debug output if needed
if _DEBUG:
n = ca.grid.number_of_nodes
for r in range(ca.grid.number_of_node_rows):
for c in range(ca.grid.number_of_node_columns):
n -= 1
print '{0:.0f}'.format(ca.node_state[n]),
print
ca_plotter = CAPlotter(ca)
# RUN
current_time = 0.0
while current_time < run_duration:
# Once in a while, print out simulation and real time to let the user
# know that the sim is running ok
current_real_time = time.time()
if current_real_time >= next_report:
print 'Current sim time', current_time, '(', 100 * current_time / run_duration, '%)'
next_report = current_real_time + report_interval
# Run the model forward in time until the next output step
ca.run(current_time + plot_interval,
ca.node_state,
plot_each_transition=False) #, plotter=ca_plotter)
current_time += plot_interval
# Plot the current grid
ca_plotter.update_plot()
# Uplift
if current_time >= next_bl_drop and bl_height > 0:
#print 'doing bl drop at time', current_time
next_bl_drop += baselevel_lowering_interval
ca.node_state[left_side_ids[
bl_height]] = 0 # turn the former baselevel to air
ca.node_state[right_side_ids[
bl_height]] = 0 # turn the former baselevel to air
ca.update_link_state(bl_left_alink, 0, current_time)
ca.update_link_state(bl_right_alink, 0, current_time)
bl_height -= 1
#ca.node_state[left_side_ids[bl_height]] = 3 # turn the new baselevel to regolith
#ca.node_state[right_side_ids[bl_height]] = 3 # turn the new baselevel to regolith
bl_left_alink = left_edge_alinks[bl_height - 1]
bl_right_alink = right_edge_alinks[bl_height - 1]
#ca.update_link_state(bl_left_alink, 0, current_time)
#ca.update_link_state(bl_right_alink, 0, current_time)
#ca.node_state[left_side_ids[:bl_height]] = 3
#ca.node_state[left_side_ids[bl_height:]] = 0
#ca.node_state[right_side_ids[:bl_height]] = 3
#ca.node_state[right_side_ids[bl_height:]] = 0
#next_uplift += uplift_interval
#ca.grid.roll_nodes_ud('node_state', 1, interior_only=True)
#ca.node_state[bottom_row] = 3
#print 'after roll:',ca.node_state
# for debugging
if _DEBUG:
n = ca.grid.number_of_nodes
for r in range(ca.grid.number_of_node_rows):
for c in range(ca.grid.number_of_node_columns):
n -= 1
print '{0:.0f}'.format(ca.node_state[n]),
print
# FINALIZE
# Plot
ca_plotter.finalize()
z = extract_hillslope_profile(mg.node_vector_to_raster(ca.node_state))
numpy.savetxt('h0822-01-u125.txt', z)
print 'PEAK ELEV = ', numpy.amax(z)
