writeInterpolatedPathVTK: Write path to VTK.

Description Usage Arguments Details Value Author(s) Examples

View source: R/mkdeFunctions.R

Description

Write the interpolated move path to a VTK file.

Usage

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writeInterpolatedPathVTK(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 lines between observed locations for move steps. Move steps where the initial location i has a value of FALSE for move.dat$use.obs[i] are omitted. Currently, the list argument control only has three elements: (1) “method” with a default value of “linear”, (2) method.par which is a list of method parameters, and (3) z.scale used to scale the z-coordinates. Only the z.scale should be set by the user at this time.

Value

No value is returned

Author(s)

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

Examples

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library(raster)
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)

data(condordem)
cell.sz <- mean(res(condordem))
ext <- extent(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)

writeInterpolatedPathVTK(mv.dat, mkde.obj,
"Example California condor move steps", "condor_path.vtk")

mkde documentation built on May 29, 2017, 8:26 p.m.