Package opalsGeomorph

The package opalsGeomorph provides modules dealing with the extraction of terrain features. Breaklines mark discontinuities in the surface slope. They are of crucial importance for the geomorphological quality of the DTM. opalsGeomorph, therefore, provides modules for automatic detection and modelling of such lineaments.

Scripts and Modules of Package opalsGeomorph
Modules Description
EdgeDetect Provides different raster based edge detection algorithms (e.g. Canny).
Export Exports vector data stored in an OPALS data manager (ODM) in various data formats.
Histo Derives histograms and descriptive statistics (min, max, mean, r.m.s, etc.) for ODM or grid/raster data sets and stores the results graphically (SVG) and numerically (XML).
Import Loads vector and raster data into an ODM for subsequent use in modules dealing with point cloud and line related data.
Info Extracts and reports header information of a vector or raster file (ODM, GDAL).
LineModeler Models 3D structure lines based on a point cloud (ODM) and 2D line approximations.
LineTopology Provides different line merging and topology correction tools for cleaning line networks derived via automatic edge detection.
Rasterize Performs vector-to-raster conversion for all types of simple feature geometries (points, lines, polygons).
Translate Performs format conversion for vector data files with additional read support of GDAL rasters.
Vectorize Performs raster-to-vector conversion and exports polyline geometries.
View Provides an interactive 3d viewer for points (including arbitrary attributes) and lines.
ZColor Derives color coded visualizations of grid models and stores them as geo-coded raster images.