FME Geometry, PythonCaller, GenerativeArt


#main_script
import fmeobjects
import numpy as np
from fmeobjects import FMELine, FMEPoint, FMEPolygon
from scipy.spatial import Delaunay


"""
triangulation from star polygon vertices
where each vertex i connects to (i+k) % n.
"""

def star_polygon(n, k, r=1.0):
    pts = [(r*np.cos(2*np.pi*i/n), r*np.sin(2*np.pi*i/n)) for i in range(n)]
    path, i = [], 0
    while not path or i != 0:
        path.append(pts[i])
        i = (i + k) % n
    return path + [path[0]]

class FeatureProcessor(object):
    def __init__(self):
        pass

    def input(self, feature: fmeobjects.FMEFeature):
        start_point = np.array([10,15])
        trianguline = star_polygon(7, 2)
        pts = trianguline
        pline_input = list(map(tuple, trianguline))
        line1 = FMELine(pline_input)
        feature.setGeometry(line1)
        
        self.pyoutput(feature)
        
        tri = Delaunay(pts)
        for simplex in tri.simplices:
        
            triangle_pts = simplex
            pline_input = list(map(tuple, triangle_pts))
            line1 = FMELine(pline_input)
            
            polygon = FMEPolygon(line1)
            feature.setGeometry(polygon)
            self.pyoutput(feature)
        
        """
        start_point = np.array([10,10])
        #trianguline = triangle_row(start_point, 10, 5)
        trianguline = triangle_row2(start_point, 11, 1, 3,1)
        pline_input = list(map(tuple, trianguline))
        line1 = FMELine(pline_input)
        feature.setGeometry(line1)
        self.pyoutput(feature)
        """