poisson-d 0.5.0

poisson disk implementation in python

Poisson disk implementation in python

• Free software: MIT license

Features

• Generate poisson disk coordinates on a grid

• Generate points with charactoristics of poisson disk from an image

• Generate points with charactoristics of poisson disk from CMYK channels of an image

Usage examples

• Use poisson-d module, from Grasshoper Python Script Component, to generate points of poisson disk

# requirements: poisson-d==latest
import rhinoscriptsyntax as rs
import imageio.v3 as iio
from poisson_d import poisson_d as p

# remove the follow two lines if you want take these two parameters as input variables
max_points = 30000
white_threshold = 0.8

# input variables: img_path, radius_min, radius_max
# output variables: coordinates (list of Point3D), greys (list of floats)

image = iio.imread(img_path)

result = p.poisson_d_variant(
    img=image,
    radius_min_max=(radius_min, radius_max),
    max_points=max_points,
)

print(f"generated {len(result)} points")

result = p.filter_out_white(result, white_threshold)

coordinates = [rs.CreatePoint(pn.x, -pn.y, 0) for pn in result]
greys = [x.grey for x in result]

• Use poisson-d module, from Grasshoper Python Script Component, to generate points of poisson disk on C, M, Y, K channels

# requirements: poisson-d==latest
import rhinoscriptsyntax as rs
import imageio.v3 as iio
from poisson_d import poisson_d as p

# remove the follow two lines if you want take these two parameters as input variables
max_points = 30000
white_threshold = 0.9

# input variables: img_path, radius_min, radius_max
# output variables: c_points, m_points, y_points, k_points for coordinates; c, m, y, k for greyscales

image = iio.imread(img_path)

((c_points, m_points, y_points, k_points), (c, m, y, k)) = poisson_d_cmyk(
    img=image,
    r=(radius_min, radius_max),
    cnt=max_points,
    th=white_threshold,
)

• Generate points of poisson disk from an image

install the poisson-d module

python3 -m pip install poisson-d --upgrade

now generate an image

python3 -m poisson_d.cli image --image input/sample.png

• Generate points of poisson disk in text format, from an image

python3 -m poisson_d.cli points --image input/sample.png

Credits

This package was initialized with Cookiecutter.