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sine wave with shapes

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Motiejus Jakštys 2020-05-26 11:56:58 +03:00
parent 17d047bc49
commit 6d9897652f
1 changed files with 8 additions and 5 deletions
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II/Referatas/sinewave.py
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@ -1,19 +1,22 @@
#!/usr/bin/python #!/usr/bin/python
from math import pi
from pyproj import CRS from pyproj import CRS
import numpy as np import numpy as np
import geopandas as gpd import geopandas as gpd
from shapely.geometry import LineString from shapely.geometry import LineString
INTERVAL = 0.5 INTERVAL = 0.1
TAIL_LEN = 4 TAIL_LEN = 4
SINE_LEN = 7 SINE_LEN = 7
TAILS = np.zeros(int(TAIL_LEN / INTERVAL))
def main(): def main():
tails = np.zeros(int(TAIL_LEN / INTERVAL)) sin_range = np.arange(-pi/4, SINE_LEN, INTERVAL)
amplitude = np.sin(np.arange(0, SINE_LEN, INTERVAL)) amplitude = np.sin(sin_range * pi / 2) + 1
y = np.concatenate([tails, amplitude, tails]) y = np.concatenate([TAILS, amplitude, TAILS])
x = np.arange(-TAIL_LEN, SINE_LEN+TAIL_LEN, INTERVAL) x = np.arange(-TAIL_LEN - pi/4, SINE_LEN + TAIL_LEN, INTERVAL)
geom = LineString(zip(x, y)) geom = LineString(zip(x, y))
df = gpd.GeoDataFrame(crs=CRS(3346)) df = gpd.GeoDataFrame(crs=CRS(3346))
df['geometry'] = None df['geometry'] = None