Python shapely.geometry.polygon.LinearRing() Examples
The following are 3
code examples of shapely.geometry.polygon.LinearRing().
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Example #1
Source File: class4.py From Ocean-Data-Map-Project with GNU General Public License v3.0 | 5 votes |
def get_view_from_extent(extent): extent = list(map(float, extent.split(","))) view = LinearRing([ (extent[1], extent[0]), (extent[3], extent[0]), (extent[3], extent[2]), (extent[1], extent[2]) ]) return view
Example #2
Source File: misc.py From Ocean-Data-Map-Project with GNU General Public License v3.0 | 5 votes |
def _get_view(extent): extent = list(map(float, extent.split(","))) view = LinearRing([ (extent[1], extent[0]), (extent[3], extent[0]), (extent[3], extent[2]), (extent[1], extent[2]) ]) return view
Example #3
Source File: misc.py From Ocean-Data-Map-Project with GNU General Public License v3.0 | 4 votes |
def list_areas(file_id, simplify=True): AREA_DIR = os.path.join(current_app.config['OVERLAY_KML_DIR'], 'area') areas = [] f = os.path.join(AREA_DIR, "%s.kml" % file_id) folder = ET.parse(f).getroot() nsmap = folder.tag.split("}", 1)[0] + "}" def get_coords(path): result = [] for bound in place.iter(nsmap + path): for c in bound.iter(nsmap + "coordinates"): tuples = c.text.split(' ') coords = [] for tup in tuples: tup = tup.strip() if not tup: continue lonlat = tup.split(',') coords.append([float(lonlat[1]), float(lonlat[0])]) if simplify: coords = list(LinearRing(coords).simplify(1.0 / 32).coords) result.append(coords) return result for place in folder.iter(nsmap + "Placemark"): outers = get_coords("outerBoundaryIs") inners = get_coords("innerBoundaryIs") name = None for placename in place.iter(nsmap + "name"): name = placename.text centroids = [LinearRing(x).centroid for x in outers] areas.append({ 'name': name, 'polygons': outers, 'innerrings': inners, 'centroids': [(c.y, c.x) for c in centroids], 'key': file_id + "/" + name, }) areas = sorted(areas, key=lambda k: k['name']) return areas