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How to use start_edge method in localstack

Best Python code snippet using localstack_python

B1_a2_find_boundary_edges.py

Source:B1_a2_find_boundary_edges.py

1#find the start vertex, start edge and start edge loop for the input quad mesh2# ==============================================================================3#Imports4# ==============================================================================5import compas_rhino6from compas_rhino.geometry import RhinoMesh7from compas.datastructures import Mesh8from compas_rhino.artists import MeshArtist9# ==============================================================================10#Select inputs11# ==============================================================================12guid = compas_rhino.select_mesh()13quad_mesh = RhinoMesh.from_guid(guid).to_compas()14# ==============================================================================15#Helper functions16# ==============================================================================17def find_boundary(mesh):18    """19    identifies the start vertex,  its respective edge and its continuous edge loop20    Param21    -----22    mesh: compas quad mesh23    return24    ------25    list of corner vertex key, start edge tuple, list of start edge continuous loop26    """27    corners = list(mesh.vertices_where({'vertex_degree':2}))28    corner = corners[1]29    corner_edges = mesh.vertex_neighbors(corner)30    start_edge = (corner, corner_edges[0])31    print("start_edge", start_edge)32    start_loop = mesh.edge_loop(start_edge)33    print("start_loop", start_loop)34    return corner, start_edge, start_loop35# ==============================================================================36#Create vertices of the Brick Pattern37# ==============================================================================38#Step_1 identify the start vertex, edge and start edge loop39corner, start_edge, start_loop = find_boundary(quad_mesh)40# ==============================================================================41# Visualize Rhino42# ==============================================================================43edgecolor = {}44for edge in start_loop:45    if edge not in quad_mesh.edges():46        edge = (edge[1], edge[0])47    edgecolor[edge] = (0, 255, 0)48if start_edge not in quad_mesh.edges():49    start = (start_edge[1], start_edge[0])50edgecolor[start_edge] = (255, 0, 0)51vertexcolor = {}52vertexcolor[corner] = (255, 0, 0)53baselayer = "CSD2::BRICK_PATTERN"54artist = MeshArtist(quad_mesh, layer=baselayer+"::input_quad_mesh")55artist.clear_layer()56artist.draw_faces(join_faces=True)57artist.draw_vertices(color=vertexcolor)58artist.draw_edges(color=edgecolor)59artist.draw()60if __name__ == '__main__':...

segment.py

Source:segment.py

1#!/usr/bin/env python32import numpy as np3from skimage import filtes, io4from matplotlib import pyplot as plt5from helpers import *6def simple_horizontal(image, threshold=500):7    """8    Computes a simple horizontal segmentation of the input captcha9    by splitting at black vertical "bars"10    """11    is_data = image.sum(axis=0) > threshold12    edges = np.diff(np.concatenate(([False], is_data))).nonzero()13    dims = image.shape14    start_edge = 015    while start_edge < len(edges):16        if start_edge + 1 >= len(edges):17            debug("missing end edge", image)18            break19        start = edges[start_edge]20        if start21        end =22    last_end = 023    while last_end < dims[1]:24        start = is_data[last_end:].nonzero()25        if bars[start]26    pass27if __name__ == '__main__':...

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