Repository for Ideas & Research

Welcome to Huidae Cho’s (/hidɛ t͡ɕo/, 조희대, 曺喜大) idea repository. You can see recent changes or leave a message.

• GitHub repositories
• Isolated-speciation-based particle swarm optimization (ISPSO)
• Let It Rain - A Poisson cluster stochastic rainfall generator
• GRASS GIS
  • Latest portable daily builds for MS Windows (no administrative rights required)
    • Without OSGeo4W dependency and Python 3 (smaller download)
    • With OSGeo4W including Python 3
  • How to cross-compile GRASS GIS for MS Windows
  • How to compile GRASS GIS on MS-Windows
  • How to set up MapServer with GRASS GIS support
  • How to patch multiple polygon vector maps cleanly in GRASS GIS
  • How to calculate the longest flow path in GRASS GIS
  • How to import ArcGIS flow direction into GRASS GIS
  • How to create an empty vector map in GRASS GIS
  • How to fill no data cells in a raster map in GRASS GIS
  • How to delineate stream networks in GRASS GIS
  • How to find ridges from a drainage direction map in GRASS GIS
  • How to study deforestation in GRASS GIS
  • TOPMODEL hydrologic modeling in GRASS GIS
    • r.topmodel
    • r.topidx
  • GRASS GIS 한글번역
• ArcGIS Pro
  • How to export a basemap to GeoTIFF using ArcPy
  • How to convert a color raster dataset to grayscale using ArcPy
  • How to create features using ArcPy
  • How to reproject coordinates using ArcPy
• ArcGIS
  • How to remove self-intersecting polylines in ArcGIS
  • How to fix polylines with vertical segments in ArcGIS
  • How to create an edit operation for redo/undo using ArcObjects
  • How to use the field calculator using ArcObjects
  • How to use the geoprocessor using ArcObjects
  • How to create a new feature class using ArcObjects
  • How to create a new feature layer using ArcObjects
  • How to get the full path to a feature class using ArcObjects
• Data sources for hydrologic modeling
• Publications . Invited talks
• R: Simple R function for interactive zooming/panning
• HEC-RAS, LaTeX
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• All pages . Recent changes