createLookAt: Create various KML nodes

In duncantl/RKML: Simple tools for creating KML displays from R

Description

These functions allow one to create various different types of KML nodes. The type of node created corresponds to the name of the function. The parameters typically correspond to sub-elements of these

Usage

createLookAt(window, parent)
addGroundOverlay(doc, ..., parent = xmlRoot(doc)[["Document"]],
                  node = newXMLNode("GroundOverlay", parent = parent))
addScreenOverlay(doc, ..., parent = xmlRoot(doc)[["Document"]],
                  node = newXMLNode("ScreenOverlay", parent = parent))
addPlacemark(point, name, description = character(), id = character(), styleUrl = character(), time = NA, parent = NULL)
addIcon(file, color = character(), parent = NULL)  
addDescription(text, parent = NULL, cdata = TRUE, sep = "")

Arguments

window	a named vector giving the sub-elements of the LookAt node.
parent	the parent XML node.
doc	the top-level XML document whose Document node will act as the parent for the new node.
...	name = vale pairs that are used to populate the node. These correspond to sub-nodes or possibly attributes.
node	the node being created which can be specified by the caller in case she wants to use the function to fill in the node, but not use the standard name.
styleUrl	the name of a style or an explict URL. These should be anchored, i.e. prefixed with \# if local.
point	a vector of longitude and latitude values.
name	the name of the Placemar, used as a label in the folder in the "Places" view
id	the value of the id attribute to use for the new node.
time	the time for a TimeStamp element when creating the Placemark.
file	the name of the file for the Icon/image
color	the color for the image, given as a string.
description,text	the text for the description.
cdata	a logical value indicating whether the text for the description should be "escaped" within a CDATA block.
sep	the separator to use for the elements of the text vector when combining them to a single string. This is passed to paste.

Value

The newly created node.

Author(s)

Duncan Temple Lang

References

http://code.google.com/apis/kml/documentation/kmlreference.html

See Also

There are more R-friendly functions for some of these low-level construction functions, e.g. groundOverlay and kmlLegend

duncantl/RKML documentation built on May 15, 2019, 5:31 p.m.