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spline_class.py
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spline_class.py
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#!/usr/bin/env python
# coding: utf-8
# In[ ]:
import pyvista as pv
import numpy as np
class Spline:
def __init__(self, name, radius, points, color):
self.name = name
self.radius = radius
self.points = points
self.color = color
def introSpline(self):
print("spline name = " + self.name + ", radius = " + str(self.radius) + " , spline coordinates = " + str(self.points) + ", color = " + str(self.color))
def plotSpline(self):
spline = pv.Spline(self.points, 10000).tube(radius = self.radius)
return spline.plot(scalars = 'arc_length', show_edges = False)
def avoidCollision(spline_1, spline_2):
p = pv.Plotter(1,1)
points_1 = []
points_2 = []
points_1 = spline_1.points
points_2 = spline_2.points
color_1 = spline_1.color
color_2 = spline_2.color
rad = spline_1.radius
for point in range(len(spline_1.points)):
check = np.array_equal(points_1[point], points_2[point])
if check == True:
print("collision at " + str(points_1[point]))
points_2[point] = [points_2[point][0] + 2*rad, points_2[point][1], points_2[point][2]]
else:
print("no collision at " + str(points_1[point]))
p.subplot(0,0)
spline_1 = pv.Spline(points_1, 50).tube(radius = spline_1.radius)
spline_2 = pv.Spline(points_2, 50).tube(radius = spline_2.radius)
p.add_mesh(spline_1, color = color_1, show_edges = False)
p.add_mesh(spline_2, color = color_2, show_edges = False)
p.show()
def NinetyBend(self, point): # 'arr' stores the striaght line coordinates, 'point' is the point where you want to see the 90 degree bend
x_val = []
for element in self.points:
if element < point:
x_val.append(element)
else:
x_val.append(point)
y_val = []
for element in self.points:
if element >= point:
element = element - (point - 1)
y_val.append(element)
else:
element = 0
y_val.append(element)
z_val = np.linspace(0,0, len(x_val))
points_3 = np.column_stack((x_val,y_val,z_val))
spline = Spline("spline", self.radius, points_3)
return spline.plotSpline()
def plotSplines(splines):
p = pv.Plotter(1,1)
p.subplot(0,0)
for spline in splines:
Spline = pv.Spline(spline.points, 10000).tube(radius = spline.radius)
p.add_mesh(Spline, color = spline.color, show_edges = False)
p.show()