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test_vectorutils_createrasters.py
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import os
import pytest
DATA_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)), "data")
GEOPANDAS_NOT_AVAIL = False
try:
import geopandas
except ImportError:
GEOPANDAS_NOT_AVAIL = True
def test_rasterise_vec_lyr(tmp_path):
import rsgislib.vectorutils.createrasters
input_img = os.path.join(DATA_DIR, "sen2_20210527_aber.kea")
vec_file = os.path.join(DATA_DIR, "aber_osgb_multi_polys.geojson")
vec_lyr = "aber_osgb_multi_polys"
output_img = os.path.join(tmp_path, "out_img.kea")
rsgislib.vectorutils.createrasters.rasterise_vec_lyr(
vec_file, vec_lyr, input_img, output_img, gdalformat="KEA"
)
assert os.path.exists(output_img)
def test_rasterise_vec_lyr_burn_col(tmp_path):
import rsgislib.vectorutils.createrasters
input_img = os.path.join(DATA_DIR, "sen2_20210527_aber.kea")
vec_file = os.path.join(DATA_DIR, "aber_osgb_multi_polys.geojson")
vec_lyr = "aber_osgb_multi_polys"
output_img = os.path.join(tmp_path, "out_img.kea")
rsgislib.vectorutils.createrasters.rasterise_vec_lyr(
vec_file, vec_lyr, input_img, output_img, gdalformat="KEA", att_column="val"
)
assert os.path.exists(output_img)
def test_rasterise_vec_lyr_obj(tmp_path):
import rsgislib.imageutils
import rsgislib.vectorutils
import rsgislib.vectorutils.createrasters
input_img = os.path.join(DATA_DIR, "sen2_20210527_aber.kea")
vec_file = os.path.join(DATA_DIR, "aber_osgb_multi_polys.geojson")
vec_lyr = "aber_osgb_multi_polys"
vec_obj_ds, vec_lyr_obj = rsgislib.vectorutils.open_gdal_vec_lyr(vec_file, vec_lyr)
output_img = os.path.join(tmp_path, "out_img.kea")
rsgislib.imageutils.create_copy_img(
input_img, output_img, 1, 0, "KEA", rsgislib.TYPE_16UINT
)
rsgislib.vectorutils.createrasters.rasterise_vec_lyr_obj(vec_lyr_obj, output_img)
vec_obj_ds = None
assert os.path.exists(output_img)
def test_rasterise_vec_lyr_obj_burn_col(tmp_path):
import rsgislib.imageutils
import rsgislib.vectorutils
import rsgislib.vectorutils.createrasters
input_img = os.path.join(DATA_DIR, "sen2_20210527_aber.kea")
vec_file = os.path.join(DATA_DIR, "aber_osgb_multi_polys.geojson")
vec_lyr = "aber_osgb_multi_polys"
vec_obj_ds, vec_lyr_obj = rsgislib.vectorutils.open_gdal_vec_lyr(vec_file, vec_lyr)
output_img = os.path.join(tmp_path, "out_img.kea")
rsgislib.imageutils.create_copy_img(
input_img, output_img, 1, 0, "KEA", rsgislib.TYPE_16UINT
)
rsgislib.vectorutils.createrasters.rasterise_vec_lyr_obj(
vec_lyr_obj, output_img, att_column="val"
)
vec_obj_ds = None
assert os.path.exists(output_img)
def test_copy_vec_to_rat_exception(tmp_path):
import rsgislib
import rsgislib.vectorutils.createrasters
input_img = os.path.join(DATA_DIR, "sen2_20210527_aber.kea")
vec_file = os.path.join(DATA_DIR, "aber_osgb_multi_polys.geojson")
vec_lyr = "aber_osgb_multi_polys"
output_img = os.path.join(tmp_path, "out_img.kea")
with pytest.raises(rsgislib.RSGISPyException):
rsgislib.vectorutils.createrasters.copy_vec_to_rat(
vec_file, vec_lyr, input_img, output_img
)
@pytest.mark.skipif(GEOPANDAS_NOT_AVAIL, reason="geopandas dependency not available")
def test_copy_vec_to_rat(tmp_path):
import rsgislib.vectorutils.createrasters
import rsgislib.vectorattrs
input_img = os.path.join(DATA_DIR, "sen2_20210527_aber.kea")
vec_file = os.path.join(DATA_DIR, "aber_osgb_multi_polys.geojson")
vec_lyr = "aber_osgb_multi_polys"
out_vec_file = os.path.join(tmp_path, "aber_osgb_multi_polys_fid.geojson")
out_vec_lyr = "aber_osgb_multi_polys_fid"
rsgislib.vectorattrs.add_fid_col(
vec_file,
vec_lyr,
out_vec_file,
out_vec_lyr,
out_format="GEOJSON",
out_col="FID",
)
output_img = os.path.join(tmp_path, "out_img.kea")
rsgislib.vectorutils.createrasters.copy_vec_to_rat(
out_vec_file, out_vec_lyr, input_img, output_img, fid_col="FID"
)
assert os.path.exists(output_img)