The package opalsForest provides a set of modules and scripts dealing with forestry applications like:
Please note, that opalsForest is only partially available and some modules are in experimental state..
Unlike other packages, opalsForest consists of a multitude of loose scripts for different purposes. Therefore, the package script opalsForest only gives a short information, but cannot be used to run all the scripts in the module.
Python Scripts | Description |
---|---|
forBiomass.py | forBiomass calculates and validates parameters that can be used for estimating forest biomass. |
forCrownCoverage.py | Calculates the crown coverage for a triplet of trees. |
forDSM.py | Calculates a DSM for forested areas using the landcover dependent approach of Hollaus et al, 2010. |
forDelineation.py | Derives forest boundaries from topographic models (DTM, DSM, ...) based on a specific forest definition. |
forTopHeight.py | Calculates statistical measures (mean, std.dev., ...) for the 100 highest points within specific AOIs. |
forTreeDetection.py | Detects single tree positions from topographic models (DTM, nDSM, etc.). |
opalsForest.py | Package script providing a set of forestry related tools. |
utilsImageOverlay.py | Script to combine a height coloring with a hill shading. |
Modules | Description |
AddInfo | Inserts or updates ODM attributes by combining existing attributes and/or grid models. |
Algebra | Provides a generic raster algebra calculator featuring mathematical, statistical and conditional operators. |
Cell | Calculates statistical features of user defined attributes and stores them as raster models or rasterized point clouds. |
Colorize | |
Contouring | Derives the contour of foreground objects of a raster model and exports the results as a polygon shape file. |
Convolution | Performs convolutional filtering operations on a raster image. |
DBH | Estimate the Diameter at Breast Height (DBH) based on 3D point cloud data (ODM). |
DSM | Calculates a land cover dependent DSM raster model based on the approach of Hollaus et. al. (2010). |
DTM | Calculates a high quality Digital Terrain Model in hybrid grid structure (i.e. regular grid + structure lines). |
EchoRatio | Derives and stores the echo ratio (ER) attribute for points of an OPALS data manager. |
Export | Exports vector data stored in an OPALS data manager (ODM) in various data formats. |
Grid | Derives a 2.5D digital elevation models (DEM) in regular grid structure using simple interpolation techniques. |
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 information of an ODM, vector or raster file. |
ModelFromAxis | |
Morph | Applies morphological operations (opening, closing, erosion, dilation) on raster datasets. |
Normals | Estimates local surface normal vectors for each point of a specific point cloud (ODM). |
PointStats | Derives and stores statistical parameters describing the local distribution of a point attribute for each point of an ODM. |
Rasterize | Performs vector-to-raster conversion for all types of simple feature geometries (points, lines, polygons). |
RoadStats | |
Shade | Derives shaded relief raster maps (geo-coded hill shading) of DEM grids. |
StatFilter | Performs statistical filtering of raster datasets with a sliding kernel of arbitrary shape and size. |
TIN | Creates a TIN surface from ODM vector data based on a 2D constrained Delaunay triangulation. |
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. |