def main():
nr = 5
nc = 6
ncells = nr * nc
dx = 1
# instantiate grid
rg = RasterModelGrid(nr, nc, dx)
elevations = zeros(ncells)
# set-up interior elevations with random numbers
# for i in range(0, ncells):
# if rg.is_interior(i):
# elevations[i]=random.random_sample()
# set-up with prescribed elevations to test drainage area calcualtion
helper = [7, 13, 19, 10, 16, 22]
for i in range(0, 6):
# print 'helper[i]', helper[i]
elevations[helper[i]] = 2
helper = [8, 14, 20, 21, 15, 9]
for i in range(0, 6):
elevations[helper[i]] = 3
# tried making a pit, drainage area algorithm doesn't crash, but it doesn't
# work perfectly either.
# elevations[15]=-50
# printing elevations for debugging purposes
print('elevation vector')
print(elevations)
# instantiate flow routing variable
flow = RouteFlowD8(ncells)
# calculate flow directions
flow_directions = flow.calc_flowdirs(rg, elevations)
# printing flow directions for debugging purposes
print('flow direction vector')
print(flow_directions)
# instantiate drainage area variable
da_calculator = CalcDrainageArea(ncells)
# calculate drainage area
drain_area = da_calculator.calc_DA(rg, flow_directions)
# printing drainage area for debugging purposes
print('drainage area vector')
print(drain_area)
def main():
nr = 5
nc = 6
ncells = nr*nc
dx=1
#instantiate grid
rg = RasterModelGrid(nr, nc, dx)
elevations = zeros( ncells )
#set-up interior elevations with random numbers
#for i in range(0, ncells):
# if rg.is_interior(i):
# elevations[i]=random.random_sample()
#set-up with prescribed elevations to test drainage area calcualtion
helper = [7,13,19,10,16,22]
for i in range(0, 6):
#print 'helper[i]', helper[i]
elevations[helper[i]]=2
helper = [8,14,20,21,15,9]
for i in range(0, 6):
elevations[helper[i]]=3
#tried making a pit, drainage area algorithm doesn't crash, but it doesn't
#work perfectly either.
#elevations[15]=-50
#printing elevations for debugging purposes
print 'elevation vector'
print elevations
#instantiate flow routing variable
flow = RouteFlowD8(ncells)
#calculate flow directions
flow_directions = flow.calc_flowdirs(rg, elevations)
#printing flow directions for debugging purposes
print 'flow direction vector'
print flow_directions
#instantiate drainage area variable
da_calculator = CalcDrainageArea(ncells)
#calculate drainage area
drain_area = da_calculator.calc_DA(rg, flow_directions)
#printing drainage area for debugging purposes
print 'drainage area vector'
print drain_area
def main():
nr = 5
nc = 6
ncells = nr*nc
dx=1
#instantiate grid
rg = RasterModelGrid(nr, nc, dx)
rg.set_inactive_boundaries(False, False, True, True)
elevations = zeros( ncells )
#set-up interior elevations with random numbers
#for i in range(0, ncells):
# if rg.is_interior(i):
# elevations[i]=random.random_sample()
#set-up with prescribed elevations to test drainage area calcualtion
helper = [7,8,9,10,13,14,15,16]
for i in range(0, len(helper)):
#print 'helper[i]', helper[i]
elevations[helper[i]]=2
helper = [19,20,21,22]
for i in range(0, len(helper)):
elevations[helper[i]]=3
elevations[7]=1
#tried making a pit, drainage area algorithm doesn't crash, but it doesn't
#work perfectly either.
#elevations[15]=-50
#printing elevations for debugging purposes
#print 'elevation vector'
#print elevations
#instantiate flow routing variable
flow = flow_routing_D8.RouteFlowD8(ncells)
#calculate flow directions
flow_directions, max_slope = flow.calc_flowdirs(rg, elevations)
fd_raster = rg.node_vector_to_raster(flow_directions,True)
#printing flow directions for debugging purposes
#print 'flow direction vector'
#print flow_directions
#instantiate drainage area variable
da_calculator = CalcDrainageArea(ncells)
#calculate drainage area
drain_area = da_calculator.calc_DA(rg, flow_directions)
#printing drainage area for debugging purposes
#print 'drainage area vector'
#print drain_area
#printing, from Dan's craters code
elev_raster = rg.node_vector_to_raster(elevations,True)
#contour(elev_raster)
#flipped_elev_raster = numpy.empty_like(elev_raster)
#for i in range(0,nr):
# flipped_elev_raster[i,:] = elev_raster[(nr-i-1),:]
#imshow(flipped_elev_raster)
print('elevation raster')
print(elev_raster)
#imshow(elev_raster)
#colorbar()
#show()
print('flow direction raster')
print(fd_raster)
da_raster = rg.node_vector_to_raster(drain_area)
def main():
nr = 5
nc = 6
ncells = nr * nc
dx = 1
#instantiate grid
rg = RasterModelGrid(nr, nc, dx)
rg.set_inactive_boundaries(False, False, True, True)
elevations = zeros(ncells)
#set-up interior elevations with random numbers
#for i in range(0, ncells):
# if rg.is_interior(i):
# elevations[i]=random.random_sample()
#set-up with prescribed elevations to test drainage area calcualtion
helper = [7, 8, 9, 10, 13, 14, 15, 16]
for i in range(0, len(helper)):
#print 'helper[i]', helper[i]
elevations[helper[i]] = 2
helper = [19, 20, 21, 22]
for i in range(0, len(helper)):
elevations[helper[i]] = 3
elevations[7] = 1
#tried making a pit, drainage area algorithm doesn't crash, but it doesn't
#work perfectly either.
#elevations[15]=-50
#printing elevations for debugging purposes
#print 'elevation vector'
#print elevations
#instantiate flow routing variable
flow = flow_routing_D8.RouteFlowD8(ncells)
#calculate flow directions
flow_directions, max_slope = flow.calc_flowdirs(rg, elevations)
fd_raster = rg.node_vector_to_raster(flow_directions, True)
#printing flow directions for debugging purposes
#print 'flow direction vector'
#print flow_directions
#instantiate drainage area variable
da_calculator = CalcDrainageArea(ncells)
#calculate drainage area
drain_area = da_calculator.calc_DA(rg, flow_directions)
#printing drainage area for debugging purposes
#print 'drainage area vector'
#print drain_area
#printing, from Dan's craters code
elev_raster = rg.node_vector_to_raster(elevations, True)
#contour(elev_raster)
#flipped_elev_raster = numpy.empty_like(elev_raster)
#for i in range(0,nr):
# flipped_elev_raster[i,:] = elev_raster[(nr-i-1),:]
#imshow(flipped_elev_raster)
print 'elevation raster'
print elev_raster
#imshow(elev_raster)
#colorbar()
#show()
print 'flow direction raster'
print fd_raster
da_raster = rg.node_vector_to_raster(drain_area)