Example #1
0
def ugrid_corner_plotting(path, show=True):
    # path = '/home/benkoziol/htmp/ugrid_splits/src_subset_1.nc'
    # path = '/home/benkoziol/l/data/ocgis/ugrid-cesm-subsetting/UGRID_1km-merge-10min_HYDRO1K-merge-nomask_c130402.nc'

    rd = RequestDataset(path)
    vc = rd.get_raw_field()
    vc.load()

    face_nodes = vc['landmesh_face_node'].get_value()
    face_node_x = vc['landmesh_node_x'].get_value()
    face_node_y = vc['landmesh_node_y'].get_value()

    for ctr, idx in enumerate(range(face_nodes.shape[0])):
        if ctr % 1000 == 0:
            print '{} of {}'.format(ctr, face_nodes.shape[0])

        curr_face_indices = face_nodes[idx, :]
        curr_face_node_x = face_node_x[curr_face_indices]
        curr_face_node_y = face_node_y[curr_face_indices]
        face_coords = np.zeros((4, 2))
        face_coords[:, 0] = curr_face_node_x
        face_coords[:, 1] = curr_face_node_y

        plt.scatter(face_coords[:, 0], face_coords[:, 1], marker='o', color='b')

    if show:
        plt.show()
Example #2
0
def ugrid_corner_plotting(path, show=True):
    # path = '/home/benkoziol/htmp/ugrid_splits/src_subset_1.nc'
    # path = '/home/benkoziol/l/data/ocgis/ugrid-cesm-subsetting/UGRID_1km-merge-10min_HYDRO1K-merge-nomask_c130402.nc'

    rd = RequestDataset(path)
    vc = rd.get_raw_field()
    vc.load()

    face_nodes = vc['landmesh_face_node'].get_value()
    face_node_x = vc['landmesh_node_x'].get_value()
    face_node_y = vc['landmesh_node_y'].get_value()

    for ctr, idx in enumerate(range(face_nodes.shape[0])):
        if ctr % 1000 == 0:
            print '{} of {}'.format(ctr, face_nodes.shape[0])

        curr_face_indices = face_nodes[idx, :]
        curr_face_node_x = face_node_x[curr_face_indices]
        curr_face_node_y = face_node_y[curr_face_indices]
        face_coords = np.zeros((4, 2))
        face_coords[:, 0] = curr_face_node_x
        face_coords[:, 1] = curr_face_node_y

        plt.scatter(face_coords[:, 0],
                    face_coords[:, 1],
                    marker='o',
                    color='b')

    if show:
        plt.show()
Example #3
0
def plot_centers(path):
    rd = RequestDataset(path)
    vc = rd.get_raw_field()

    x = vc[FACE_CENTER_X].get_value()  # [::100]
    y = vc[FACE_CENTER_Y].get_value()  # [::100]

    plt.scatter(x, y, marker='o', color='b')
Example #4
0
def plot_centers(path):
    rd = RequestDataset(path)
    vc = rd.get_raw_field()

    x = vc[FACE_CENTER_X].get_value()  # [::100]
    y = vc[FACE_CENTER_Y].get_value()  # [::100]

    plt.scatter(x, y, marker='o', color='b')
Example #5
0
def analyze_weights():
    folder = '/home/benkoziol/htmp/esmf_weights_full_20170628'
    for f in os.listdir(folder):
        if f.startswith('esmf_weights'):
            f = os.path.join(folder, f)
            print f
            rd = RequestDataset(f)
            vc = rd.get_raw_field()
            weights = vc['S'].get_value()
            wmin, wmax = weights.min(), weights.max()
            if wmin < 0:
                raise ValueError('min less than 0: {}'.format(f))
            if wmax > 1.0 + 1e-6:
                raise ValueError('max greater than 1 ({}): {}'.format(wmax, f))
Example #6
0
def analyze_weights():
    folder = '/home/benkoziol/htmp/esmf_weights_full_20170628'
    for f in os.listdir(folder):
        if f.startswith('esmf_weights'):
            f = os.path.join(folder, f)
            print f
            rd = RequestDataset(f)
            vc = rd.get_raw_field()
            weights = vc['S'].get_value()
            wmin, wmax = weights.min(), weights.max()
            if wmin < 0:
                raise ValueError('min less than 0: {}'.format(f))
            if wmax > 1.0 + 1e-6:
                raise ValueError('max greater than 1 ({}): {}'.format(wmax, f))
Example #7
0
def resolution():
    rd = RequestDataset(IN_PATH)
    vc = rd.get_raw_field()

    x = vc[FACE_CENTER_X].get_value()
    x = np.sort(x)
    y = vc[FACE_CENTER_Y].get_value()
    y = np.sort(y)

    dx = np.diff(x)
    sx = {dx.min(), dx.mean(), dx.max()}

    dy = np.diff(y)
    sy = {dy.min(), dy.mean(), dy.max()}

    print sx, sy
Example #8
0
def resolution():
    rd = RequestDataset(IN_PATH)
    vc = rd.get_raw_field()

    x = vc[FACE_CENTER_X].get_value()
    x = np.sort(x)
    y = vc[FACE_CENTER_Y].get_value()
    y = np.sort(y)

    dx = np.diff(x)
    sx = {dx.min(), dx.mean(), dx.max()}

    dy = np.diff(y)
    sy = {dy.min(), dy.mean(), dy.max()}

    print sx, sy
Example #9
0
def ugrid_area():
    # path = '/home/benkoziol/htmp/src_subset_1.nc'
    path = '/home/benkoziol/l/data/ocgis/ugrid-cesm-subsetting/UGRID_1km-merge-10min_HYDRO1K-merge-nomask_c130402.nc'
    rd = RequestDataset(path)
    vc = rd.get_raw_field()
    vc.load()

    face_nodes = vc['landmesh_face_node'].get_value()
    face_node_x = vc['landmesh_node_x'].get_value()
    face_node_y = vc['landmesh_node_y'].get_value()
    face_center_x = vc['landmesh_face_x'].get_value()
    face_center_y = vc['landmesh_face_y'].get_value()

    areas = []
    for ctr, idx in enumerate(range(face_nodes.shape[0])):
        if ctr % 10000 == 0:
            print '{} of {}'.format(ctr, face_nodes.shape[0])

        curr_face_indices = face_nodes[idx, :]
        curr_face_node_x = face_node_x[curr_face_indices]
        curr_face_node_y = face_node_y[curr_face_indices]
        face_coords = np.zeros((4, 2))
        face_coords[:, 0] = curr_face_node_x
        face_coords[:, 1] = curr_face_node_y
        poly = Polygon(face_coords)
        parea = poly.area
        poly = shapely.geometry.box(*poly.bounds)

        pt = Point(face_center_x[idx], face_center_y[idx])

        if not poly.intersects(pt):
            print idx, np.array(pt), poly.bounds

        # if parea > 1:
        #     print idx
        #     print face_nodes[idx, :]
        #     print face_coords
        #     print poly.bounds
        #     sys.exit()

        areas.append(parea)
Example #10
0
def ugrid_area():
    # path = '/home/benkoziol/htmp/src_subset_1.nc'
    path = '/home/benkoziol/l/data/ocgis/ugrid-cesm-subsetting/UGRID_1km-merge-10min_HYDRO1K-merge-nomask_c130402.nc'
    rd = RequestDataset(path)
    vc = rd.get_raw_field()
    vc.load()

    face_nodes = vc['landmesh_face_node'].get_value()
    face_node_x = vc['landmesh_node_x'].get_value()
    face_node_y = vc['landmesh_node_y'].get_value()
    face_center_x = vc['landmesh_face_x'].get_value()
    face_center_y = vc['landmesh_face_y'].get_value()

    areas = []
    for ctr, idx in enumerate(range(face_nodes.shape[0])):
        if ctr % 10000 == 0:
            print '{} of {}'.format(ctr, face_nodes.shape[0])

        curr_face_indices = face_nodes[idx, :]
        curr_face_node_x = face_node_x[curr_face_indices]
        curr_face_node_y = face_node_y[curr_face_indices]
        face_coords = np.zeros((4, 2))
        face_coords[:, 0] = curr_face_node_x
        face_coords[:, 1] = curr_face_node_y
        poly = Polygon(face_coords)
        parea = poly.area
        poly = shapely.geometry.box(*poly.bounds)

        pt = Point(face_center_x[idx], face_center_y[idx])

        if not poly.intersects(pt):
            print idx, np.array(pt), poly.bounds

        # if parea > 1:
        #     print idx
        #     print face_nodes[idx, :]
        #     print face_coords
        #     print poly.bounds
        #     sys.exit()

        areas.append(parea)