writeObservedLocationVTK: Write observed locations to VTK.

In mkde: 2D and 3D Movement-Based Kernel Density Estimates (MKDEs)

Write observed locations to VTK.

Description

Write the observed points to a VTK file.

Usage

writeObservedLocationVTK(move.dat, mkde.obj, description, filename, control)	

Arguments

move.dat	A move data object created with initializeMovementData
mkde.obj	An MKDE object created with initialize3DMKDE
description	A text description for the file header
filename	A string for the path and file name
control	A list for finer control

Details

Writes 3D points for observed locations for move steps. Currently, the list argument control only has one element z.scale used to scale the z-coordinates.

Value

No value is returned

Author(s)

Jeff A. Tracey, PhD
USGS Western Ecological Research Center, San Diego Field Station
[e-mail]
James Sheppard, PhD
San Diego Zoo Institute for Conservation Research
[e-mail]

Examples

library(terra)
data(condor)
mv.dat <- initializeMovementData(condor$time, condor$x, condor$y, 
z.obs=condor$z, sig2obs=25.0, sig2obs.z=81.0, t.max=65.0)

fpath <- system.file("extdata", "condordem.RDS", package="mkde")
condordem <- terra::readRDS(fpath)
cell.sz <- mean(res(condordem))
ext <- ext(condordem)
nx <- ncol(condordem)
ny <- nrow(condordem)
mkde.obj <- initializeMKDE3D(ext$xmin, cell.sz, nx, ext$ymin, cell.sz,
ny, min(values(condordem), na.rm=TRUE), 30.0, 100)

writeObservedLocationVTK(mv.dat, mkde.obj,
"Example California condor locations", "condor_locations.vtk")

# Clean up files
unlink("condor_locations.vtk")

mkde documentation built on April 3, 2025, 11:44 p.m.