def plot_graph_turtle(G, wn="result", ms=-1, digraph=False):
import graphics_turtle as racg
gr = racg.Graphics()
import plot_graph_simple_turtle as pgs
w = h = gr.h
G2 = g.CreateCircleGeometry(G, w, h, 0, h / 3)
gr.Clear()
pgs.Plot(gr, G2, digraph=digraph)
pgs.Show(gr, wn, ms)
gr.Close()
return
def Wire0(r, ppath, m=10, n=40):
assert (len(ppath) >= 2)
C = [0, 0, 0]
H1 = gra.Cn(m)
H1 = gra.CreateCircleGeometry(H1, C[0], C[1], C[2], r)
t = 0
dt = 1. / n
path = []
while t <= 1:
pt = B(t, ppath)
path.append(pt)
t = t + dt
H = ext.Extrusion(H1, path, bcap=True, ecap=True, closed=True)
return H
def Torus0(r1,r2,m=10,n=40):
C = [0,0,0]
H1 = gra.Cn(m)
H1 = gra.CreateCircleGeometry(H1,C[0],C[1],C[2],r1)
t = 0
dt = 2*pi/n
path = []
while t <= 2*pi + dt:
x = r2*sin(t)
y = r2*cos(t)
z = 0
pt = [x,y,z]
path.append(pt)
t = t + dt
H = ext.Extrusion(H1,path,bcap=False,ecap=False,closed=True)
return H
def Helix0(r, a, b, m=10, n=40, N=1):
C = [0, 0, 0]
H1 = gra.Cn(m)
H1 = gra.CreateCircleGeometry(H1, C[0], C[1], C[2], r)
t = 0
dt = 2 * pi / n
path = []
while t <= 2 * pi * N + dt:
# https://en.wikipedia.org/wiki/Helix
x = a * sin(t)
y = a * cos(t)
z = b * t
pt = [x, y, z]
path.append(pt)
t = t + dt
H = ext.Extrusion(H1, path, bcap=True, ecap=True, closed=True)
return H
pts = []
pt_move = [0,0]
print("Select the two points on 2D plane")
cv2.namedWindow("result")
cv2.setMouseCallback("result",getxy)
doc = {}
doc["V"] = list(range(2))
doc["E"] = [[0,1]]
doc["pts"] = [[119, 304],[480, 53]]
doc = graph.Cn(4)
w = 400
h = 400
cx,cy,cz = (w/2,h/2,0)
r = 0.75*w/2
doc = graph.CreateCircleGeometry(doc,cx,cy,cz,r)
doc['_id'] = 1
w = 600
h = 600
gr = racg.Graphics(w=w,h=h)
def PlotGraph(gr,G,color):
black = [0,0,0]
for e in G['E']:
A,B = [G['pts'][v] for v in e]
gr.Line(A,B,color)
for v in G['V']:
A = G['pts'][v]
gr.Point(A,black)
return
def Circle(r, k):
G = graph.Cn(k)
C = [0, 0, 0]
G = graph.CreateCircleGeometry(G, C[0], C[1], C[2], r)
return G