chiMaps | Chi maps of two variables |

dem | Example digital elevation model (DEM) |

dem2track.extent | Crops the DEM to the extent of the track with a buffer |

dist2point.3d | Distance of each track point to a given point |

dist2target.3d | Distance to target |

eRTG3D | eRTG3D: Empirically Informed Random Trajectory Generator in 3-D |

filter.dead.ends | Remove dead ends |

get.densities.3d | Extract tldCube and autodifference approximation functions |

get.glideRatio.3d | Calculate glide ratio |

get.section.densities.3d | Extract tldCube and autodifferences functions from track sections |

get.track.densities.3d | Extract tldCube and autodifferences functions from a consistent track |

is.sf.3d | Tests if the object is a simple feature collection (class: "sf, data.frame") |

lift2target.3d | Lift angle to target |

logRasterStack | Converts a rasterStack to logarithmic scale |

movingMedian | Moving median in one dimension |

n.sim.cond.3d | Conditional Empirical Random Walks (CERW) in 3-D |

n.sim.glidingSoaring.3d | Simulates multiple 'gliding & soaring' tracks with a given number of gliding steps |

niclas | Example track data.frame |

parpbapply | Parallel apply with progressbar |

parpblapply | Parallel lapply with progressbar |

parpbsapply | Parallel sapply with progressbar |

plot2d | Plot function to plot the 3-D tracks in 2-D plane |

plot3d | Plot track(s) with a surface of a digital elevation model in three dimensions |

plot3d.densities | Density plots of turn angle, lift angle and step length |

plot3d.multiplot | Multiple plot function for ggplot objects |

plot3d.tldCube | Visualize turn-lift-step histogram |

plotRaster | Plots a rasterLayer or rasterStack |

qProb.3d | Q probabilities for n steps |

reproduce.track.3d | Reproduce a track with the eRTG3D |

saveImageSlices | Export a dataCube as image slice sequence |

sf2df.3d | Converts a sf data.frame to a normal dataframe |

sim.cond.3d | Conditional Empirical Random Walk (CERW) in 3-D |

sim.crw.3d | Simulation of a three dimensional Correlated Random Walk |

sim.glidingSoaring.3d | Simulates 'gliding & soaring' track with a given number of gliding steps |

sim.uncond.3d | Unconditional Empirical Random Walk (UERW) in 3-D |

test.eRTG.3d | Test the functionality of the eRTG3D |

test.verification.3d | Statistical Verification of the simulated track |

track.extent | Extent of track(s) |

track.properties.3d | Track properties of a 3-D track |

track.split.3d | This function splits the by outliers in the time lag. |

track2sf.3d | Converts a track to a "sf, data.frame" |

transformCRS.3d | Transform coordinates reference system (CRS) of a 3-D track |

turn2target.3d | Turn angle to target |

turnLiftStepHist | Three dimensional histogram |

voxelCount | Apply voxel counting on a point cloud |