pyskyline/demo/test_terrain.py

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Python
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2024-07-22 16:04:55 +02:00
import matplotlib.pyplot as plt
import numpy as np
import cv2 as cv
import os
import pyskyline
import pyskyline.localization
FILE = 'terrain'
SIZE = 256
X = SIZE//2
Y = SIZE//2
if __name__ == '__main__':
if os.path.isfile(f'{FILE}_{SIZE}.npz'):
print("Save detected, loading ...")
terrain = pyskyline.Terrain.load(f'{FILE}_{SIZE}')
else:
print("No save detected, generating new terrain ...")
terrain = pyskyline.Terrain.generate(size=SIZE)
terrain.compute_all_skylines()
terrain.save(f'{FILE}_{SIZE}')
print(f"Done, terrain saved as {FILE}_{SIZE}.npz")
# Output elevation map
cv.imwrite('elevation_map.jpg', terrain.dem.elevation)
# Output color map
cv.imwrite('color_map.jpg', terrain.dem.color)
# Ouput field of view visualization
cv.imwrite('fov.jpg', terrain.compute_fov(X, Y))
# Ouput skyline
skyline = terrain.compute_skyline(X, Y)
plt.figure()
plt.grid(False)
plt.plot(np.arange(-180,180,360/256),skyline)
plt.title('Skyline')
plt.savefig('skyline.svg')
# Generate heatmap
skyline = np.roll(skyline, 8) # Add heading error
skyline += np.random.normal(0,0.5, 256) # Add random noise
mosse_correlation = pyskyline.MosseCorrelation(terrain, skyline)
scoremap = mosse_correlation.generate_scoremap()
plt.figure()
plt.grid(False)
fig = plt.imshow(scoremap)
plt.title('Score map')
plt.colorbar(fig)
plt.savefig('scoremap.svg')