Changelog

v.1.2.4 (May 20, 2026)

Added Continuous Drainage Network component. Features include:

  • Generate catchment boundaries as closed polylines (toggle)
  • Generate a continuous drainage network that breaches depressions using a least cost path algorithm that minimizes elevation gain introduced to the network (toggle)
  • Constraints by spill height and maximum basin size
  • Outputs drainage network by minimum flow accumulation value, classified by Strahler order
  • Preview display of drainage network and catchments (toggle)

Added Topographic Wetness Index component. TWI describes areas which are likely to be saturated under similar flow conditions. Features include:

  • Calculate Topographic Wetness Index, defined as ln(accumulation/tan(slope))
  • Input slope and flow accumulation from Continuous Drainage Network or MFD Drainage Network components to modify TWI parameters
  • Generate a raw TWI and normalized TWI with an input for clipping normalized score within percentile domain

Updated MFD Drainage Network component. Changes include:

  • Added input to allow up to 8 flow directions
  • Improved performance
v.1.2.3 (Feb 28, 2026)

Fixed bug in Curve Relative to Curve component.

v.1.2.2 (Jan 13, 2026)

Updated projected GeoTIFF import component. Changes include:

  • Added transform output. When mesh georeferencing is toggled off, this can be used to shift georeferenced geometry to the topography mesh at origin. CRS must be consistent between TIFF and geometry.
v.1.2.1 (Jan 5, 2026)

Updated projected GeoTIFF import component. Changes include:

  • Handles much larger TIFF file sizes (2+ GB) with improved speed
  • Constrain mesh generation to TIFF subregion, using a normalized X and Y domain
  • Clips values exceeding a threshold with a fill value (useful for NoData values)
v.1.1.3 (Nov 5, 2025)

Added Generate Mesh from Curves component. Features include:

  • TIN mesh generated from input contours and breaklines at target resolution
  • Toggle whether input curve control points are added to mesh vertices list
  • Constrain TIN mesh to a closed boundary

Updated Generate Mesh component. Changes include:

  • Context Mesh input enables the combined use of the Generate Mesh from Curves component with a larger TIFF-generated context mesh
  • Grid mesh generated will apply a consistent resolution across both TIN and TIFF meshes, sampling the TIN where possible and the TIFF otherwise to generate a stitched mesh
v.1.1.2 (Sep 18, 2025)

Added Relative Elevation component. Features include:

  • For each mesh face center, analyze the elevation between the center and its neighbors (defined by distance input)
  • Outputs the mean elevation of the neighborhood, the difference between mean and face center, the range of the neighborhood, and the max/min elevation within the neighborhood