mtcontrib/mapgen_rivers
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Rework default erosion parameters,

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Fix ignored values of K and m,
and changed processes order.
This commit is contained in:
Gael-de-Sailly 2020-12-20 18:51:44 +01:00
parent 7529291ab4
commit 9b4a9b2516
3 changed files with 14 additions and 12 deletions
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12
generate.py
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@ -94,14 +94,12 @@ nn = n*vscale + offset
### COMPUTE LANDSCAPE EVOLUTION ### COMPUTE LANDSCAPE EVOLUTION
# Initialize landscape evolution model # Initialize landscape evolution model
print('Initializing model') print('Initializing model')
model = terrainlib.EvolutionModel(nn, K=1, m=0.35, d=1, sea_level=0, flex_radius=flex_radius) model = terrainlib.EvolutionModel(nn, K=K, m=m, d=d, sea_level=sea_level, flex_radius=flex_radius)
terrainlib.update(model.dem, model.lakes, t=5, title='Initializing...') terrainlib.update(model.dem, model.lakes, t=5, title='Initializing...')
dt = time/niter dt = time/niter
# Run the model's processes: the order in which the processes are run is arbitrary and could be changed. # Run the model's processes: the order in which the processes are run is arbitrary and could be changed.
print('Initial flow calculation')
model.calculate_flow()
for i in range(niter): for i in range(niter):
disp_niter = 'Iteration {:d} of {:d}...'.format(i+1, niter) disp_niter = 'Iteration {:d} of {:d}...'.format(i+1, niter)
@ -109,12 +107,16 @@ for i in range(niter):
print(disp_niter) print(disp_niter)
print('Diffusion') print('Diffusion')
model.diffusion(dt) model.diffusion(dt)
print('Flow calculation')
model.calculate_flow()
terrainlib.update(model.dem, model.lakes, title=disp_niter)
print('Advection') print('Advection')
model.advection(dt) model.advection(dt)
print('Isostatic equilibration') print('Isostatic equilibration')
model.adjust_isostasy() model.adjust_isostasy()
print('Flow calculation')
model.calculate_flow() print('Last flow calculation')
model.calculate_flow()
print('Done!') print('Done!')

6
terrain.conf
View File

@ -5,9 +5,9 @@ offset = 0
persistence = 0.6 persistence = 0.6
lacunarity = 2.0 lacunarity = 2.0
K = 1 K = 0.5
m = 0.35 m = 0.5
d = 0.2 d = 0.5
sea_level = 0 sea_level = 0
flex_radius = 20 flex_radius = 20

8
terrain_higher.conf
View File

@ -1,15 +1,15 @@
mapsize = 1000 mapsize = 1000
scale = 400 scale = 400
vscale = 500 vscale = 600
offset = 0 offset = 0
persistence = 0.65 persistence = 0.65
lacunarity = 2.0 lacunarity = 2.0
K = 0.5 K = 0.5
m = 0.5 m = 0.55
d = 0.1 d = 0.45
sea_level = 0 sea_level = 0
flex_radius = 100 flex_radius = 50
time = 10 time = 10
niter = 10 niter = 10