Пример #1
0
def test_generate_terrain():
    csv = ds.Canvas(x_range=X_RANGE,
                    y_range=Y_RANGE,
                    plot_width=W,
                    plot_height=H)
    terrain = geo.generate_terrain(csv)
    assert terrain is not None
Пример #2
0
from __future__ import absolute_import
import datashader as ds
import xarray as xr
import numpy as np
import pytest

from datashader import geo

W = 25
H = 30

X_RANGE = (0, 500)
Y_RANGE = (0, 500)

csv = ds.Canvas(x_range=X_RANGE, y_range=Y_RANGE, plot_width=W, plot_height=H)
terrain = geo.generate_terrain(csv)


def _raster_aggregate_default():
    return terrain


#
def _do_sparse_array(data_array):
    import random
    indx = list(zip(*np.where(data_array)))
    pos = random.sample(range(data_array.size), data_array.size // 2)
    indx = np.asarray(indx)[pos]
    r = indx[:, 0]
    c = indx[:, 1]
    data_half = data_array.copy()
Пример #3
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def test_generate_terrain():
    terrain = geo.generate_terrain(20, 20)
    assert terrain is not None
Пример #4
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import datashader as ds
import xarray as xr
import numpy as np
import pytest

from datashader import geo

W = 25
H = 30

csv = ds.Canvas(plot_width=W, plot_height=H)
terrain = geo.generate_terrain(W, H)

def _raster_aggregate_default():
    return terrain
#
def _do_sparse_array(data_array):
    import random
    indx = list(zip(*np.where(data_array)))
    pos = random.sample(range(data_array.size), data_array.size//2)
    indx = np.asarray(indx)[pos]
    r = indx[:,0]
    c = indx[:,1]
    data_half = data_array.copy()
    data_half[r,c] = 0
    return data_half

def _do_gaussian_array():
    _x = np.linspace(0, 50, 101)
    _y = _x.copy()
    _mean = 25
Пример #5
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def test_generate_terrain():
    csv = ds.Canvas(x_range=X_RANGE, y_range=Y_RANGE,
                    plot_width=W, plot_height=H)
    terrain = geo.generate_terrain(csv)
    assert terrain is not None
Пример #6
0
import datashader as ds
import xarray as xr
import numpy as np
import pytest

from datashader import geo

W = 25
H = 30

X_RANGE = (0, 500)
Y_RANGE = (0, 500)

csv = ds.Canvas(x_range=X_RANGE, y_range=Y_RANGE,
                plot_width=W, plot_height=H)
terrain = geo.generate_terrain(csv)

def _raster_aggregate_default():
    return terrain
#
def _do_sparse_array(data_array):
    import random
    indx = list(zip(*np.where(data_array)))
    pos = random.sample(range(data_array.size), data_array.size//2)
    indx = np.asarray(indx)[pos]
    r = indx[:,0]
    c = indx[:,1]
    data_half = data_array.copy()
    data_half[r,c] = 0
    return data_half