X-Git-Url: https://git.openstreetmap.org./nominatim.git/blobdiff_plain/f727620859cacfa39146642b31ad446762212262..381c9395747a04672acba395e0bd14332d1a9db9:/test/bdd/steps/geometry_factory.py?ds=sidebyside diff --git a/test/bdd/steps/geometry_factory.py b/test/bdd/steps/geometry_factory.py index 7eedfc37..a8fda5ff 100644 --- a/test/bdd/steps/geometry_factory.py +++ b/test/bdd/steps/geometry_factory.py @@ -1,23 +1,27 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# This file is part of Nominatim. (https://nominatim.org) +# +# Copyright (C) 2022 by the Nominatim developer community. +# For a full list of authors see the git log. from pathlib import Path import os +from steps.geometry_alias import ALIASES + class GeometryFactory: - """ Provides functions to create geometries from scenes and data grids. + """ Provides functions to create geometries from coordinates and data grids. """ def __init__(self): - defpath = Path(__file__) / '..' / '..' / '..' / 'scenes' / 'data' - self.scene_path = os.environ.get('SCENE_PATH', defpath.resolve()) - self.scene_cache = {} - self.clear_grid() + self.grid = {} - def parse_geometry(self, geom, scene): + def parse_geometry(self, geom): """ Create a WKT SQL term for the given geometry. The function understands the following formats: - []: - Geometry from a scene. If the scene is omitted, use the - default scene. + country: + Point geoemtry guaranteed to be in the given country

Point geometry

,...,

@@ -29,8 +33,10 @@ class GeometryFactory: number. In the latter case it must refer to a point in a previously defined grid. """ - if geom.find(':') >= 0: - return "ST_SetSRID({}, 4326)".format(self.get_scene_geometry(scene, geom)) + if geom.startswith('country:'): + ccode = geom[8:].upper() + assert ccode in ALIASES, "Geometry error: unknown country " + ccode + return "ST_SetSRID('POINT({} {})'::geometry, 4326)".format(*ALIASES[ccode]) if geom.find(',') < 0: out = "POINT({})".format(self.mk_wkt_point(geom)) @@ -41,6 +47,7 @@ class GeometryFactory: return "ST_SetSRID('{}'::geometry, 4326)".format(out) + def mk_wkt_point(self, point): """ Parse a point description. The point may either consist of 'x y' cooordinates or a number @@ -58,6 +65,7 @@ class GeometryFactory: assert pt is not None, "Scenario error: Point '{}' not found in grid".format(geom) return "{} {}".format(*pt) + def mk_wkt_points(self, geom): """ Parse a list of points. The list must be a comma-separated list of points. Points @@ -65,49 +73,22 @@ class GeometryFactory: """ return ','.join([self.mk_wkt_point(x) for x in geom.split(',')]) - def get_scene_geometry(self, default_scene, name): - """ Load the geometry from a scene. - """ - geoms = [] - for obj in name.split('+'): - oname = obj.strip() - if oname.startswith(':'): - assert default_scene is not None, "Scenario error: You need to set a scene" - defscene = self.load_scene(default_scene) - wkt = defscene[oname[1:]] - else: - scene, obj = oname.split(':', 2) - scene_geoms = self.load_scene(scene) - wkt = scene_geoms[obj] - - geoms.append("'{}'::geometry".format(wkt)) - - if len(geoms) == 1: - return geoms[0] - - return 'ST_LineMerge(ST_Collect(ARRAY[{}]))'.format(','.join(geoms)) - - def load_scene(self, name): - """ Load a scene from a file. - """ - if name in self.scene_cache: - return self.scene_cache[name] - - scene = {} - with open(Path(self.scene_path) / "{}.wkt".format(name), 'r') as fd: - for line in fd: - if line.strip(): - obj, wkt = line.split('|', 2) - scene[obj.strip()] = wkt.strip() - self.scene_cache[name] = scene - - return scene - def clear_grid(self): + def set_grid(self, lines, grid_step, origin=(0.0, 0.0)): + """ Replace the grid with one from the given lines. + """ self.grid = {} + y = origin[1] + for line in lines: + x = origin[0] + for pt_id in line: + if pt_id.isdigit(): + self.grid[int(pt_id)] = (x, y) + x += grid_step + y += grid_step - def add_grid_node(self, nodeid, x, y): - self.grid[nodeid] = (x, y) def grid_node(self, nodeid): + """ Get the coordinates for the given grid node. + """ return self.grid.get(nodeid)