const_hl_test.py

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#==============================================================================
#     Copyright (C) 2021-2024 Wageningen University - All Rights Reserved
#                      Author: Gonzalo Mier
#                         BSD-3 License
#==============================================================================
 
import pytest
import fields2cover as f2c
 
def near(a, b):
  assert pytest.approx(a) == pytest.approx(b)
 
def test_fields2cover_hl_const_gen_emptyArea():
  rand = f2c.Random();
  field = rand.generateRandField(1e3, 5);
  near(field.area(), 1e3);
 
  hl_gen = f2c.HG_Const_gen();
  no_hl = hl_gen.generateHeadlands(field.getField(), 1e2);
  near(no_hl.area(), 0);
 
def test_fields2cover_hl_const_gen_borderArea():
  rand = f2c.Random();
  field = rand.generateRandField(1e5, 5);
 
  hl_gen = f2c.HG_Const_gen();
  no_hl = hl_gen.generateHeadlands(field.getField(), 1.0);
 
  assert field.area() > 0;
  near(field.area(), 1e5);
  assert (no_hl.area() < 1e5 * 0.99);
  assert (no_hl.area() > 1e5 * 0.9);
  assert (no_hl.area() / field.area() > 0.9);
  assert (no_hl.area() / field.area() < 1.0);
 
  extra_hl = hl_gen.generateHeadlands(field.getField(), -10.0);
  assert (field.area() < extra_hl.area());