def geom_attributes(self, srs=None):
if srs is not None:
#Should reproject here to equal area, before geom_attributes
#self.glac_geom.AssignSpatialReference(glac_shp_srs)
#self.glac_geom_local = geolib.geom2localortho(self.glac_geom)
geolib.geom_transform(self.glac_geom, srs)
self.glac_geom_extent = geolib.geom_extent(self.glac_geom)
self.glac_area = self.glac_geom.GetArea()
self.cx, self.cy = self.glac_geom.Centroid().GetPoint_2D()
def get_lulc_source(ds):
"""For a given input dataset extent, select the appropriate mask source (NLCD vs. global bareground)
"""
ds_geom = geolib.ds_geom(ds)
lulc_fn = get_nlcd_fn()
lulc_ds = gdal.Open(lulc_fn)
lulc_geom = geolib.ds_geom(lulc_ds)
#If the dem geom is within CONUS (nlcd extent), use it
geolib.geom_transform(ds_geom, t_srs=lulc_geom.GetSpatialReference())
#This was lulc_geom.Contains, but changed to force LULC for CONUS ds that extend beyond LULC domain
if lulc_geom.Intersects(ds_geom):
print("Using NLCD 30m data for rockmask")
lulc_source = 'nlcd'
else:
print("Using global 30m bare ground data for rockmask")
#Otherwise for Global, use 30 m Bare Earth percentage
lulc_source = 'bareground'
#lulc_fn = get_bareground_fn()
#lulc_ds = gdal.Open(lulc_fn)
return lulc_source
#Could output json here
stackdir = os.path.join(outdir, site_name)
if not os.path.exists(stackdir):
os.makedirs(stackdir)
out_fn = os.path.join(stackdir, 'site_%s.csv' % site_name)
f = open(out_fn, 'w')
site_geom_orig = site_feat.GetGeometryRef()
site_geom_orig.AssignSpatialReference(site_shp_srs)
#This will automatically select appropriate UTM zone or polar stereographic
if dst_srs is None:
dst_srs = geolib.get_proj(site_geom_orig)
geolib.geom_transform(site_geom_orig, dst_srs)
if buffer is not None:
site_geom_buff = site_geom_orig.Buffer(buffer)
site_geom = site_geom_buff
else:
site_geom = site_geom_orig
#This is xmin, xmax, ymin, ymax
site_extent = geolib.geom_extent(site_geom)
site_extent_str = ' '.join(map(str, site_extent))
print("Extent:", site_extent)
print("Width/Height (km)", np.array(geolib.geom_wh(site_geom)) / 1000.)
print("Area (km2)", site_geom.Area() / 1E6)