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- Does not include support for element connectivity
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,20 @@ | ||
| import subprocess | ||
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| from ocgis import env | ||
| from ocgis.test.base import create_gridxy_global | ||
| from ocgis.variable.crs import Spherical | ||
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| SRC_PATH = '/home/benkoziol/htmp/rwg_test_src.nc' | ||
| DST_PATH = '/home/benkoziol/htmp/rwg_test_dst.nc' | ||
| WGT_PATH = '/home/benkoziol/htmp/rwg_test_weights.nc' | ||
| env.CLOBBER_UNITS_ON_BOUNDS = False | ||
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| src_grid = create_gridxy_global(resolution=10.0, wrapped=False, crs=Spherical()) | ||
| dst_grid = create_gridxy_global(resolution=20.0, wrapped=False, crs=Spherical()) | ||
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| src_grid.write(SRC_PATH) | ||
| dst_grid.write(DST_PATH) | ||
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| cmd = ['ESMF_RegridWeightGen', '-s', SRC_PATH, '--src_type', 'GRIDSPEC', '-d', DST_PATH, '--dst_type', 'GRIDSPEC', | ||
| '-w', WGT_PATH, '--method', 'conserve', '--weight-only'] | ||
| subprocess.check_call(cmd) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| import os | ||
| import tempfile | ||
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| import ocgis | ||
| from ocgis import vm | ||
| from ocgis.constants import GridAbstraction | ||
| from ocgis.driver.nc_ugrid import DriverNetcdfUGRID | ||
| from ocgis.driver.request.core import RequestDataset | ||
| from ocgis.spatial.grid_splitter import GridSplitter | ||
| from ocgis.test.base import create_gridxy_global, create_exact_field | ||
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| WD = tempfile.gettempdir() | ||
| IN_PATH = '/home/ubuntu/data/UGRID_1km-merge-10min_HYDRO1K-merge-nomask_c130402.nc' | ||
| # IN_PATH = '/media/benkoziol/Extra Drive 1/data/ocgis/ugrid-cesm-subsetting/UGRID_1km-merge-10min_HYDRO1K-merge-nomask_c130402.nc' | ||
| # OUT_PATH = '/tmp/ugrid_subset.nc' | ||
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| # OUTDIR = '/home/benkoziol/htmp/ugrid_splits' | ||
| OUTDIR = '/home/ubuntu/htmp/ugrid_splits' | ||
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| BBOX = [10., 5., 12., 7.] | ||
| XVAR = 'landmesh_node_x' | ||
| YVAR = 'landmesh_node_y' | ||
| FACE_CENTER_X = 'landmesh_face_x' | ||
| FACE_CENTER_Y = 'landmesh_face_y' | ||
| FACE_NODE = 'landmesh_face_node' | ||
| DIM_FACE_COUNT = 'nlandmesh_face' | ||
| MESHVAR = 'landmesh' | ||
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| # Do not set units on bounds variables by default. | ||
| ocgis.env.CLOBBER_UNITS_ON_BOUNDS = False | ||
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| def assert_weight_file_is_rational(weight_filename): | ||
| wf = RequestDataset(weight_filename).get() | ||
| row = wf['row'].get_value() | ||
| S = wf['S'] | ||
| # col = wf['col'].get_value() | ||
| for idx in xrange(1, row.size + 1): | ||
| print 'current row:', idx | ||
| row_idx = row == idx | ||
| curr_S = S[row_idx].get_value() | ||
| print 'current S sum:', curr_S.sum() | ||
| print '=============================' | ||
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| def create_grid_splitter(): | ||
| resolution = 1. / 111. | ||
| # resolution = 1. | ||
| dst_grid = create_gridxy_global(resolution=resolution, wrapped=False, crs=ocgis.crs.Spherical()) | ||
| field = create_exact_field(dst_grid, 'exact', ntime=3, fill_data_var=False, crs=ocgis.crs.Spherical()) | ||
| field.write(os.path.join(OUTDIR, 'dst_field_1km.nc')) | ||
| src_grid = RequestDataset(uri=IN_PATH, driver=DriverNetcdfUGRID, grid_abstraction=GridAbstraction.POINT).get().grid | ||
| gs = GridSplitter(src_grid, dst_grid, (10, 10), src_grid_resolution=0.167, check_contains=False) | ||
| return gs | ||
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| def main(write_subsets=False, merge_weight_files=False): | ||
| gs = create_grid_splitter() | ||
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| index_path = os.path.join(OUTDIR, 'gs_index.nc') | ||
| if write_subsets: | ||
| src_template = os.path.join(OUTDIR, 'src_subset_{}.nc') | ||
| dst_template = os.path.join(OUTDIR, 'dst_subset_{}.nc') | ||
| wgt_template = os.path.join('esmf_weights_{}.nc') | ||
| gs.write_subsets(src_template, dst_template, wgt_template, index_path) | ||
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| if merge_weight_files: | ||
| mwfn = os.path.join(OUTDIR, '01-merged_weights.nc') | ||
| gs.create_merged_weight_file(index_path, mwfn, OUTDIR, split_grids_directory=OUTDIR) | ||
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| vm.barrier() | ||
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| def test(): | ||
| # for ii in range(1, 101): | ||
| # src_template = os.path.join(OUTDIR, 'src_subset_{}.nc'.format(ii)) | ||
| # if os.path.exists(src_template): | ||
| # dst_template = os.path.join(OUTDIR, 'dst_subset_{}.nc'.format(ii)) | ||
| # fsrc = RequestDataset(src_template, driver=DriverNetcdfUGRID, grid_abstraction='polygon').get() | ||
| # fdst = RequestDataset(dst_template).get() | ||
| # | ||
| # print 'src extent:', fsrc.grid.extent | ||
| # sbox = box(*fsrc.grid.extent) | ||
| # print 'dst extent:', fdst.grid.extent | ||
| # dbox = box(*fdst.grid.extent) | ||
| # print sbox.intersects(dbox) | ||
| # time.sleep(0.5) | ||
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| # for ii in range(1, 101): | ||
| # template = os.path.join(OUTDIR, 'esmf_weights_{}.nc'.format(ii)) | ||
| # if os.path.exists(template): | ||
| # field = RequestDataset(template).get() | ||
| # S = field['S'].get_value() | ||
| # print 'esmf weights:', template | ||
| # print 'min:', S.min() | ||
| # print 'max:', S.max() | ||
| # if (S.max() - 1.0) > 1e6: | ||
| # raise ValueError('S is too high') | ||
| # if (S.min()) < 0.0: | ||
| # raise ValueError('S is less then zero') | ||
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| weight_filename = os.path.join(OUTDIR, '01-merged_weights.nc') | ||
| assert_weight_file_is_rational(weight_filename) | ||
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| if __name__ == '__main__': | ||
| # main(write_subsets=False, merge_weight_files=True) | ||
| test() |
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