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test_vectorutils_createvectors.py
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import os
import pytest
GEOPANDAS_NOT_AVAIL = False
try:
import geopandas
except ImportError:
GEOPANDAS_NOT_AVAIL = True
DATA_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)), "data")
def test_polygonise_raster_to_vec_lyr_4_conn(tmp_path):
import rsgislib.vectorutils.createvectors
input_img = os.path.join(DATA_DIR, "aber_osgb_multi_polys_rasters.kea")
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.polygonise_raster_to_vec_lyr(
out_vec_file,
out_vec_lyr,
out_format="GPKG",
input_img=input_img,
img_band=1,
mask_img=input_img,
mask_band=1,
use_8_conn=False,
)
assert os.path.exists(out_vec_file)
def test_polygonise_raster_to_vec_lyr_8_conn(tmp_path):
import rsgislib.vectorutils.createvectors
input_img = os.path.join(DATA_DIR, "aber_osgb_multi_polys_rasters.kea")
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.polygonise_raster_to_vec_lyr(
out_vec_file,
out_vec_lyr,
out_format="GPKG",
input_img=input_img,
img_band=1,
mask_img=input_img,
mask_band=1,
use_8_conn=True,
)
assert os.path.exists(out_vec_file)
@pytest.mark.skipif(GEOPANDAS_NOT_AVAIL, reason="geopandas dependency not available")
def test_vectorise_pxls_to_pts(tmp_path):
import rsgislib.vectorutils.createvectors
input_img = os.path.join(DATA_DIR, "aber_osgb_multi_polys_rasters.kea")
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.vectorise_pxls_to_pts(
input_img,
1,
3,
out_vec_file,
out_vec_lyr,
out_format="GPKG",
out_epsg_code=None,
del_exist_vec=False,
)
assert os.path.exists(out_vec_file)
def test_extract_image_footprint(tmp_path):
import rsgislib.vectorutils.createvectors
input_img = os.path.join(DATA_DIR, "sen2_20210527_aber.kea")
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.extract_image_footprint(
input_img,
out_vec_file,
out_vec_lyr,
"GPKG",
tmp_dir=tmp_path,
reproj_to=None,
no_data_val=0,
)
assert os.path.exists(out_vec_file)
def test_extract_image_footprint_exception(tmp_path):
import rsgislib.vectorutils.createvectors
input_img = os.path.join(DATA_DIR, "sen2_20210527_aber.kea")
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
with pytest.raises(rsgislib.RSGISPyException):
rsgislib.vectorutils.createvectors.extract_image_footprint(
input_img,
out_vec_file,
out_vec_lyr,
"GPKG",
tmp_dir=tmp_path,
reproj_to=None,
)
def test_extract_image_footprint_reproj(tmp_path):
import rsgislib.vectorutils.createvectors
input_img = os.path.join(DATA_DIR, "sen2_20210527_aber.kea")
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.extract_image_footprint(
input_img,
out_vec_file,
out_vec_lyr,
"GPKG",
tmp_dir=tmp_path,
reproj_to="epsg:4326",
no_data_val=0,
)
assert os.path.exists(out_vec_file)
def test_define_grid(tmp_path):
import rsgislib.vectorutils.createvectors
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.define_grid(
[0, 5, 10, 15],
1,
1,
4326,
out_vec_file,
out_vec_lyr,
out_format="GPKG",
out_epsg_code=None,
utm_grid=False,
utm_hemi=False,
)
assert os.path.exists(out_vec_file)
def test_define_grid_utm(tmp_path):
import rsgislib.vectorutils.createvectors
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.define_grid(
[0, 5, 10, 15],
5000,
5000,
4326,
out_vec_file,
out_vec_lyr,
out_format="GPKG",
out_epsg_code=None,
utm_grid=True,
utm_hemi=False,
)
assert os.path.exists(out_vec_file)
def test_create_poly_vec_bboxs(tmp_path):
import rsgislib.vectorutils.createvectors
from osgeo import ogr
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
bboxs = [[1, 2, 1, 2], [2, 3, 2, 3], [3, 4, 3, 4], [4, 5, 4, 5]]
atts = dict()
atts["name"] = ["hello", "to", "the", "world"]
atts["id"] = [1, 2, 3, 4]
att_types = dict()
att_types["names"] = ["name", "id"]
att_types["types"] = [ogr.OFTString, ogr.OFTInteger]
rsgislib.vectorutils.createvectors.create_poly_vec_bboxs(
out_vec_file,
out_vec_lyr,
"GPKG",
4326,
bboxs,
atts=atts,
att_types=att_types,
overwrite=True,
)
assert os.path.exists(out_vec_file)
def test_write_pts_to_vec(tmp_path):
import rsgislib.vectorutils.createvectors
from osgeo import ogr
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
pts_x = [1, 2, 3, 4]
pts_y = [1, 2, 3, 4]
atts = dict()
atts["name"] = ["hello", "to", "the", "world"]
atts["id"] = [1, 2, 3, 4]
att_types = dict()
att_types["names"] = ["name", "id"]
att_types["types"] = [ogr.OFTString, ogr.OFTInteger]
rsgislib.vectorutils.createvectors.write_pts_to_vec(
out_vec_file,
out_vec_lyr,
"GPKG",
4326,
pts_x,
pts_y,
atts=atts,
att_types=att_types,
replace=True,
file_opts=[],
lyr_opts=[],
)
assert os.path.exists(out_vec_file)
def test_create_bboxs_for_pts(tmp_path):
import rsgislib.vectorutils.createvectors
pts_vec_file = os.path.join(tmp_path, "pts_vec.gpkg")
pts_vec_lyr = "pts_vec"
pts_x = [1, 2, 3, 4]
pts_y = [1, 2, 3, 4]
rsgislib.vectorutils.createvectors.write_pts_to_vec(
pts_vec_file,
pts_vec_lyr,
"GPKG",
4326,
pts_x,
pts_y,
atts=None,
att_types=None,
replace=True,
file_opts=[],
lyr_opts=[],
)
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.create_bboxs_for_pts(
pts_vec_file,
pts_vec_lyr,
0.25,
0.35,
out_vec_file,
out_vec_lyr,
out_format="GPKG",
del_exist_vec=False,
)
assert os.path.exists(out_vec_file)
def test_create_wgs84_vector_grid(tmp_path):
import rsgislib.vectorutils.createvectors
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.create_wgs84_vector_grid(
out_vec_file,
out_vec_lyr,
"GPKG",
1,
1,
[-5, 5, -5, 5],
overlap=None,
tile_name_prefix="test_",
)
assert os.path.exists(out_vec_file)
def test_create_wgs84_vector_grid_overlap(tmp_path):
import rsgislib.vectorutils.createvectors
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.create_wgs84_vector_grid(
out_vec_file,
out_vec_lyr,
"GPKG",
1,
1,
[-5, 5, -5, 5],
overlap=0.0277777778,
tile_name_prefix="test_",
)
assert os.path.exists(out_vec_file)
@pytest.mark.skipif(GEOPANDAS_NOT_AVAIL, reason="geopandas dependency not available")
def test_create_random_pts_in_radius(tmp_path):
import rsgislib.vectorutils.createvectors
import rsgislib.vectorutils
out_vec_file = os.path.join(tmp_path, "out_vec.gpkg")
out_vec_lyr = "out_vec"
rsgislib.vectorutils.createvectors.create_random_pts_in_radius(
centre_x=277751.195711714506615,
centre_y=280747.283988269686233,
radius=5000,
n_pts=1000,
epsg_code=27700,
out_vec_file=out_vec_file,
out_vec_lyr=out_vec_lyr,
out_format="GPKG",
rnd_seed=None,
)
n_feats = rsgislib.vectorutils.get_vec_feat_count(out_vec_file, out_vec_lyr)
assert os.path.exists(out_vec_file) and (n_feats == 1000)