Command Line Tools

sch

schimpy CLI tools for pre- and post- processing for SCHISM and data processing.

sch [OPTIONS] COMMAND [ARGS]...

Options

-h, --help: Show this message and exit.

batch-metrics-cli

Command line interface for generating metrics plots.

MAIN_INPUTFILE: Path to the main input YAML file.

sch batch-metrics-cli [OPTIONS] MAIN_INPUTFILE

Options

-h, --help: Show this message and exit.

Arguments

MAIN_INPUTFILE: Required argument

clip-dems-cli

Trim each DEM on a prioritized list. The coordinates used for clipping is supplied either directly as an upper left and lower right coordinate or indirectly using the bounding coordinates of a sample image. In practice this script is usually used with images saved from SMS.

Arguments:: DEMLIST file containing prioritized (high to low) list of dems.

sch clip-dems-cli [OPTIONS] DEMLIST

Options

--coords <coords>: Bounding coordinates to which DEMs will be clipped (upper left x, y, lower right x, y).

--image <infile>: Image or DEM used to infer bounding coordinates for clipping. Use jpeg for the image. This argument is mutually exclusive with –coords. If a sample is provided its upper left and lower right corner will be used.

--prefix <prefix>: Prefix used for output file names.

--outformat <outformat>: Output format, default is AAIGrid (ArcInfo ASCII).

--verbose: Enable verbose output.

--hshift: (Deprecated) Shift DEM by half cell for applications that incorrectly interpret the location of the origin and data centering of a DEM. This is a bug fix for SMS < 11.1

-h, --help: Show this message and exit.

Arguments

DEMLIST: Required argument

contour-smooth-cli

Uses the min-max curvature flow algorithm of Malladi and Sethian to simplify DEM topography.

The script requires a subcommand like: $ contour_smooth.py smooth The most basic subcommand is smooth. Given limited efficiency at the moment, the script is generally run on a small area and dumps intermediate points in the processing as numpy arrays so you can view the differences using the contour_smooth.py view subcommand.

You can get subject-specific help on a subcommand by typing: $ contour_smooth.py subcommand –help

sch contour-smooth-cli [OPTIONS] COMMAND [ARGS]...

Options

-h, --help: Show this message and exit.

save

Save dumped DEM based on .npy dump and the original DEM it came from.

sch contour-smooth-cli save [OPTIONS]

Options

-h, --help: Show this message and exit.

--dumpfile <dumpfile>: Required Dump file from smoothing (npy format).

--original <original>: Required Original DEM (GeoTiff).

--outfile <outfile>: Required Output file that will be saved (GeoTiff format).

smooth

Smooth the input DEM.

sch contour-smooth-cli smooth [OPTIONS]

Options

-h, --help: Show this message and exit.

--input <input>: Required Input file name, file in tiff format.

--scales <scales>: Scales (in multiples of DEM side length) over which to smooth. The sequence [1,2,3,4] is an example, where the smoothing is gradually introduced at 10m, 20m, 30m and 40m for a 10m DEM.

--nstep <nstep>: Number of pseudo time steps to resolve integration. Default is 40.

--max_time <max_time>: Pseudo time representing final time step. Default is 4.0.

--report_interval <report_interval>: Intermediate interval at which integration will be segmented and smoothed DEMs will be dumped. For example, if –max_time is 2.0 and –report_interval is 0.1, you will get 20 intermediate reports.

view

View two versions of the smoothed DEM based on their .npy dump.

sch contour-smooth-cli view [OPTIONS] FILE0 FILE1

Options

-h, --help: Show this message and exit.

--levels <levels>: Contour levels.

--vmin <vmin>: Minimum elevation in color bar.

--vmax <vmax>: Maximum elevation in color bar.

Arguments

FILE0: Required argument

FILE1: Required argument

convert-linestrings-cli

Convert SCHISM line strings between YAML and Shapefile formats.

sch convert-linestrings-cli [OPTIONS]

Options

-h, --help: Show this message and exit.

--input <input>: Required Input file (YAML or Shapefile).

--output <output>: Required Output file (YAML or Shapefile).

convert-mesh-cli

Convert a mesh from one format to another. The format is decided by the extensions automatically.

sch convert-mesh-cli [OPTIONS]

Options

--input <input>: Required Input mesh file.

--output <output>: Required Output mesh file.

--crs <crs>: CRS string for the projection.

-h, --help: Show this message and exit.

convert-points-cli

Convert SCHISM points (source and sink) between YAML and Shapefile formats.

sch convert-points-cli [OPTIONS]

Options

-h, --help: Show this message and exit.

--input <input>: Required Input file (YAML).

--output <output>: Required Output file (Shapefile).

-h, --help: Show this message and exit.

convert-polygons-cli

Convert SCHISM polygons between YAML and Shapefile formats.

sch convert-polygons-cli [OPTIONS]

Options

-h, --help: Show this message and exit.

--input <input>: Required Input file (YAML or Shapefile).

--output <output>: Required Output file (YAML or Shapefile).

-h, --help: Show this message and exit.