BUG: Bspline local discretization

[WirajanDASILVA]

• I'm submitting a ...

  • [X] bug report
  • [ ] feature request

• What is the current behavior? bspline local discretization giving bad results

  

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem Avoid reference to other packages

  
  import math
  import time
  from itertools import product

import matplotlib.pyplot as plt import mplcyberpunk import numpy

plt.style.use("cyberpunk")

from dessia_common.core import DessiaObject import dessia_common.core import volmdlr from volmdlr import edges, primitives3d, wires, surfaces from volmdlr.core import EdgeStyle import time time_s = time.time()

edge, start, end = DessiaObject.load_from_file('/Users/wirajandasilva/Downloads/test_bspline_local_discretizations_291223.json').primitives discretized_points_between_1_2 = edge.local_discretization(start, end, 10) ax = edge.plot() for p in discretized_points_between_1_2: p.plot(ax, 'c') start.plot(ax, 'r') end.plot(ax, 'b')

print("start abscissa: ", edge.abscissa(start)) print("end abscissa: ", edge.abscissa(end)) print("point at abscissa start :", edge.point_at_abscissa(edge.abscissa(start)).is_close(start)) print("point at abscissa end :", edge.point_at_abscissa(edge.abscissa(end)).is_close(end))

print("first point abscissa: ", edge.abscissa(discretized_points_between_1_2[0]))

print("last point abscissa: ", edge.abscissa(discretized_points_between_1_2[-1]))

#

print("point at abscissa first point :", edge.point_at_abscissa(edge.abscissa(discretized_points_between_1_2[0])))

print("point at abscissa last point :", edge.point_at_abscissa(edge.abscissa(discretized_points_between_1_2[-1])))

[test_bspline_local_discretizations_291223.json](https://github.com/Dessia-tech/volmdlr/files/13793111/test_bspline_local_discretizations_291223.json)

* **What is the expected behavior?**

* **What is the motivation / use case for changing the behavior?**

* **Possible fixes**

* **Please tell us about your environment:**

  - branch: dev
  - commit:  
  - python version: