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hmt-convert

Convert between hydraulic model formats. Supports HEC-RAS 2D to SRH-2D mesh conversion, and SRH-2D results or mesh to VTK. These tools are stateless — no open project is required. Use this when the user wants to convert formats, e.g. "convert RAS to SRH", "export SRH-2D to VTK", or "convert mesh to VTK".

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Overview

Install command

npx skills add https://github.com/psu-efd/pyHMT2D --skill hmt-convert

Copy and paste this command into Claude Code to install the skill

Source

psu-efd/pyHMT2D

Stars122

Forks24

UpdatedApril 2, 2026 at 19:37

SKILL.md

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name	hmt-convert
description	Convert between hydraulic model formats. Supports HEC-RAS 2D to SRH-2D mesh conversion, and SRH-2D results or mesh to VTK. These tools are stateless — no open project is required. Use this when the user wants to convert formats, e.g. "convert RAS to SRH", "export SRH-2D to VTK", or "convert mesh to VTK".

Convert between hydraulic model formats using stateless conversion tools. No open project or session is required.

Usage

/hmt-convert [description of what to convert]

Supported conversions

Conversion	Tool
HEC-RAS 2D mesh + Manning's n → SRH-2D (`.srhgeom`, `.srhmat`)	`ras_to_srh`
SRH-2D HDF results → VTK	`srh_to_vtk`
SRH-2D mesh only → VTK	`srh_to_vtk` with `mesh_only: true`

Steps

Determine the conversion type from the user's request or arguments. If unclear, ask:
- "Do you want to convert HEC-RAS to SRH-2D, or export SRH-2D results/mesh to VTK?"
Collect required file paths. If the user did not provide them, scan the current directory for relevant files:
```
hmt-cli list_model_files --args '{"directory": "."}'
```
For ras_to_srh: need .hdf result file, terrain .tif, and desired output case name. For srh_to_vtk: need .srhhydro file and either the HDF result file or output VTK filename.

Run the conversion.

HEC-RAS → SRH-2D:

hmt-cli ras_to_srh --args '{"ras_hdf_file": "<path>", "terrain_tif_file": "<path>", "srh_case_name": "<name>"}'

Report the generated .srhgeom and .srhmat files. Remind the user that a .srhhydro boundary-condition file must be created separately.

SRH-2D results → VTK (last time step):

hmt-cli srh_to_vtk --args '{"srhhydro_file": "<path>", "output_file": "<result.h5>"}'

SRH-2D results → VTK (all time steps):

hmt-cli srh_to_vtk --args '{"srhhydro_file": "<path>", "output_file": "<result.h5>", "all_timesteps": true}'

SRH-2D mesh only → VTK:

hmt-cli srh_to_vtk --args '{"srhhydro_file": "<path>", "output_file": "<mesh.vtk>", "mesh_only": true}'

Report output files and suggest next steps:
- For HEC-RAS → SRH-2D: "Create a .srhhydro file to complete the SRH-2D case, then run /hmt-open to open it."
- For VTK output: "Open the VTK file(s) in ParaView to visualize the results."

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Export simulation results and/or the computational mesh to VTK files for ParaView visualization. Use this when the user wants to export, visualize, or create VTK files.

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hmt-modify

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Modify Manning's n roughness coefficients, inlet flow rates, or exit water surface elevations for the currently open pyHMT2D project and save the changes. Use this when the user wants to change model parameters.

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hmt-open

psu-efd/pyHMT2D

Open a pyHMT2D hydraulic model project (SRH-2D or HEC-RAS) and display its materials, boundary conditions, and available result variables. Use this when the user wants to open, load, or inspect a hydraulic model.

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hmt-results

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Load simulation results and query values at specific points, domain-wide statistics, flood extent, or cross-section profiles. Use this when the user wants to read, query, probe, or analyze simulation results.

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Source

psu-efd

psu-efd/pyHMT2D

View GitHub Repository View Creator Repositories

Install command

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Useful forSOC

Software DevelopersComputer and Mathematical Occupations15-1252L4

name	hmt-convert
description	Convert between hydraulic model formats. Supports HEC-RAS 2D to SRH-2D mesh conversion, and SRH-2D results or mesh to VTK. These tools are stateless — no open project is required. Use this when the user wants to convert formats, e.g. "convert RAS to SRH", "export SRH-2D to VTK", or "convert mesh to VTK".

Convert between hydraulic model formats using stateless conversion tools. No open project or session is required.

Usage

/hmt-convert [description of what to convert]

Supported conversions

Conversion	Tool
HEC-RAS 2D mesh + Manning's n → SRH-2D (`.srhgeom`, `.srhmat`)	`ras_to_srh`
SRH-2D HDF results → VTK	`srh_to_vtk`
SRH-2D mesh only → VTK	`srh_to_vtk` with `mesh_only: true`

Steps

Determine the conversion type from the user's request or arguments. If unclear, ask:
- "Do you want to convert HEC-RAS to SRH-2D, or export SRH-2D results/mesh to VTK?"
Collect required file paths. If the user did not provide them, scan the current directory for relevant files:
```
hmt-cli list_model_files --args '{"directory": "."}'
```
For ras_to_srh: need .hdf result file, terrain .tif, and desired output case name. For srh_to_vtk: need .srhhydro file and either the HDF result file or output VTK filename.

Run the conversion.

HEC-RAS → SRH-2D:

hmt-cli ras_to_srh --args '{"ras_hdf_file": "<path>", "terrain_tif_file": "<path>", "srh_case_name": "<name>"}'

Report the generated .srhgeom and .srhmat files. Remind the user that a .srhhydro boundary-condition file must be created separately.

SRH-2D results → VTK (last time step):

hmt-cli srh_to_vtk --args '{"srhhydro_file": "<path>", "output_file": "<result.h5>"}'

SRH-2D results → VTK (all time steps):

hmt-cli srh_to_vtk --args '{"srhhydro_file": "<path>", "output_file": "<result.h5>", "all_timesteps": true}'

SRH-2D mesh only → VTK:

hmt-cli srh_to_vtk --args '{"srhhydro_file": "<path>", "output_file": "<mesh.vtk>", "mesh_only": true}'

Report output files and suggest next steps:
- For HEC-RAS → SRH-2D: "Create a .srhhydro file to complete the SRH-2D case, then run /hmt-open to open it."
- For VTK output: "Open the VTK file(s) in ParaView to visualize the results."