bh.py

import matplotlib.pyplot as plt
from matplotlib.path import Path
import matplotlib.patches as patches
import pyclipper
import itertools
def gentri(len,originx,originy):
    h= int((len*0.866025)) #height
    top_tri= (originx, originy)
    lef_tri=((originx-(len/2)),(originy-h))
    right_tri= ((originx+(len/2)),(originy-h))
    base_tri= (top_tri,right_tri,lef_tri,top_tri)

    return base_tri

def rowtri():
    row= range(0,5)
    result=[]
    baselen=10
    h = int((baselen * 0.866025))  # height
    originx=240
    originy= 170

    for a in row:
        result.append (gentri(baselen,originx,originy))
        originx += baselen
    originx += 10
    print(result)
    for a in row:
        result.append (gentri(baselen,originx,originy))
        originy += baselen
    print (result)
    return result
subj= rowtri()



clip  =((180, 200), (260, 200), (260, 150),(180, 200))


pc = pyclipper.Pyclipper()

pc.AddPath(clip, pyclipper.PT_CLIP, True)

pc.AddPaths(subj, pyclipper.PT_SUBJECT, False)


solution = pc.Execute2(pyclipper.CT_INTERSECTION,pyclipper.PFT_NONZERO)


solution= pyclipper.PolyTreeToPaths(solution)
#%% Cleaning the data
print (solution)
print(list(itertools.chain.from_iterable(solution)))




#%% Cleaning the data

def grafico(subj):

    vertex= list(map(tuple,subj))

    codes=list(range(0,len(vertex)))
    i=0



    path = Path(vertex)
    xlim =min(vertex)[0]-10,max(vertex)[0]+10
    ylim = (min(vertex)[1]-10,max(vertex)[1]+10)

    return  path, xlim, ylim




path, xlim, ylim = grafico(clip)
#path2, xlim, ylim = grafico(subj)



fig = plt.figure()
ax = fig.add_subplot(111)
patch = patches.PathPatch(path, facecolor='None', edgecolor='blue')
#patch2 = patches.PathPatch(path2, facecolor='None',edgecolor='red' )

print(solution)
for a in subj:

    pathsol, xlim, ylim = grafico(a)

    ax.add_patch( patches.PathPatch(pathsol, facecolor='None',edgecolor='green' ))
ax.add_patch(patch)
#ax.add_patch(patch2)
ax.set_xlim(150,280)
ax.set_ylim(140,220)

plt.show()