New question #706850 on Yade:
https://answers.launchpad.net/yade/+question/706850
I try to change color for each sphere layer, but it doesn't seems to work. I
want to give layer that is divisible by 2 to be brown and layer that isn't
divisible by two as white.
--The method I tried that
doesn't work---
# Check if the sphere is within the clump limit
if abs(xi) <= clumpLimit and abs(yi) <= clumpLimit and
math.sqrt(xi**2 + yi**2) <= diameter/2:
# Move spheres in layers 2, 4, 6, and 8 in x and y axes by 2mm
if layer % 2:
xi += 0.002
yi += 0.002
color = (1, 1, 1) # white
else:
color = (0.647, 0.165, 0.165) #brown
sphere_obj = sphere([xi, yi, zi + z_offset], radius_clump)
# Assign material properties to the sphere
sphere_obj.material = clump_plate
# Assign color
sphere_obj.color = color
bodyList.append(O.bodies.append(sphere_obj))
---
My Code ###
import random
import math
from yade import geom, pack, utils, plot, ymport, export
import numpy as np
# Define cylinder with funnel parameters
center = (0, 0, 0)
diameter = 0.102
height = 0.18
# create cylindrical body with radius 0.102 m and height 0.064 m
cylinder = geom.facetCylinder(center=center, radius=diameter/2, height=height,
segmentsNumber=80, wallMask=6)
# add cylinder to simulation
O.bodies.append(cylinder)
# plate properties
clump_plate = CohFrictMat(density = 7500, label = 'clump_plate')
# add properties
O.materials.append(clump_plate)
# clumping parameters
bodyList = []
zi = 0.1
radius_clump = 0.00221
clumpLimit = (diameter/2) - 0.005
# layer and offset condition
num_layers = 8
z_offset_increment = 0.00128
for layer in range(num_layers):
z_offset = layer * z_offset_increment # Adjust the z-coordinate based on
the layer
for xi in range(-50, 51, 4):
xi = xi / 1000
for yi in range(-50, 51, 4):
yi = yi / 1000
# Check if the sphere is within the clump limit
if abs(xi) <= clumpLimit and abs(yi) <= clumpLimit and
math.sqrt(xi**2 + yi**2) <= diameter/2:
# Move spheres in layers 2, 4, 6, and 8 in x and y axes by 2mm
if layer % 2:
xi += 0.002
yi += 0.002
sphere_obj = sphere([xi, yi, zi + z_offset], radius_clump)
# Assign material properties to the sphere
sphere_obj.material = clump_plate
bodyList.append(O.bodies.append(sphere_obj))
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