projection

projection,Quadtree-method

projection&lt;-

projection&lt;-,Quadtree,ANY-method

projection&lt;-,Quadtree-method

Retrieves the projection of a <code>Quadtree</code>.

Provides functionality for working with raster-like quadtrees
(also called “region quadtrees”), which allow for variable-sized
cells. The package allows for flexibility in the quadtree creation
process.  Several functions defining how to split and aggregate cells
are provided, and custom functions can be written for both of these
processes. In addition, quadtrees can be created using other quadtrees
as “templates”, so that the new quadtree's structure is identical to
the template quadtree. The package also includes functionality for
modifying quadtrees, querying values, saving quadtrees to a file, and
calculating least-cost paths using the quadtree as a resistance
surface.

Derek Friend

quadtree

Region Quadtrees for Spatial Data

Andrew Brown

Randolph Voorhies

Shane Grant

Juan Pedro Bolivar Puente

projection function

<dl><dt>x</dt>
<dd>a <code>Quadtree</code></dd>
<dt>value</dt>
<dd>character; the projection to assign to the
<code>Quadtree</code></dd></dl>

Arguments

Retrieve the projection of a Quadtree — projection

<dl>

<dt>x</dt>
<dd>a <code>Quadtree</code></dd>


<dt>value</dt>
<dd>character; the projection to assign to the
<code>Quadtree</code></dd>

</dl>

Retrieve the projection of a <code>Quadtree</code>

projection: Retrieve the projection of a `Quadtree`

Description

Usage

Value

Arguments

Examples