geos_project

geos_project_normalized

geos_interpolate

geos_interpolate_normalized

<ul>
<li><code>geos_project()</code> and <code>geos_project_normalized()</code> return
the distance of point <code>geom2</code> projected on <code>geom1</code> from the origin
of <code>geom1</code>, which must be a lineal geometry.</li>
<li><code>geos_interpolate()</code> performs an
inverse operation, returning the point along <code>geom</code> representing
the given <code>distance</code> from the origin along the geometry.</li>
<li><code>_normalized()</code> variants use a distance normalized to the
<code>geos_length()</code> of the geometry.</li>
</ul>

Provides an R API to the Open Source Geometry Engine
('GEOS') library (<https://libgeos.org/>) and a vector format
with which to efficiently store 'GEOS' geometries. High-performance functions
to extract information from, calculate relationships between, and
transform geometries are provided. Finally, facilities to import
and export geometry vectors to other spatial formats are provided.

Dewey Dunnington

geos

Open Source Geometry Engine ('GEOS') R API

Edzer Pebesma

geos_project function

<dl><dt>geom1, geom2</dt>
<dd>GEOS geometry vectors,
recycled to a common length.</dd>
<dt>geom</dt>
<dd>A GEOS geometry vector</dd>
<dt>distance</dt>
<dd>Distance along the linestring to interpolate</dd>
<dt>distance_normalized</dt>
<dd>Distance along the linestring to interpolate
relative to the length of the linestring.</dd></dl>

Arguments

Linear referencing — geos_project

<dl>

<dt>geom1, geom2</dt>
<dd>GEOS geometry vectors,
recycled to a common length.</dd>


<dt>geom</dt>
<dd>A GEOS geometry vector</dd>


<dt>distance</dt>
<dd>Distance along the linestring to interpolate</dd>


<dt>distance_normalized</dt>
<dd>Distance along the linestring to interpolate
relative to the length of the linestring.</dd>

</dl>

geos_project: Linear referencing

Description

Usage

Arguments

Examples