Acknowledgments

ras-commander

ras2cng is built on top of ras-commander, the Python library for HEC-RAS automation and data extraction. ras-commander handles all the complexity of HEC-RAS HDF file parsing, text geometry parsing, and result extraction.

Cloud-Native Geospatial Stack

ras2cng uses several excellent open-source projects in its pipeline:

• Apache Parquet / PyArrow — columnar storage format
• GeoParquet — geospatial extension to Parquet
• DuckDB — in-process analytical SQL engine
• PMTiles / Protomaps — serverless tile archive format
• tippecanoe — vector tile generation
• PostGIS — spatial extension for PostgreSQL
• GeoPandas — geospatial DataFrames for Python
• Marimo — reactive Python notebooks

CLB Engineering Corporation

ras2cng is developed and maintained by CLB Engineering Corporation, a water resources engineering firm specializing in flood modeling, hydraulic analysis, and cloud-native geospatial tooling.

William M. Katzenmeyer, P.E., C.F.M. — primary developer

Contact: info@clbengineering.com