check_ring_dir

Polygon ring are seen from above: exterior ring counter clockwise,
holes clockwise

Procedures for making continuous cartogram. Procedures available are:
flow based cartogram (Gastner & Newman (2004) <doi:10.1073/pnas.0400280101>),
fast flow based cartogram (Gastner, Seguy & More (2018) <doi:10.1073/pnas.1712674115>),
rubber band based cartogram (Dougenik et al. (1985)
<doi:10.1111/j.0033-0124.1985.00075.x>).

Pierre-Andre Cornillon

cartogramR

Continuous Cartogram

Florent Demoraes

Flow-Based-Cartograms 

check_ring_dir function

<dl><dt>polygons</dt>
<dd>a sfc object which contains simple feature geometry of
types <code>POLYGON</code> or <code>MULTIPOLYGON</code></dd>
<dt>check.only</dt>
<dd>a boolean which indicates if the function only
checks the ring direction (<code>check.only=TRUE</code>) or checks and
corrects the polygon direction (<code>check.only=FALSE</code>)</dd></dl>

Arguments

Polygon rings directions are checked and corrected if asked. — check_ring_dir

<dl>

<dt>polygons</dt>
<dd>a sfc object which contains simple feature geometry of
types <code>POLYGON</code> or <code>MULTIPOLYGON</code></dd>


<dt>check.only</dt>
<dd>a boolean which indicates if the function only
checks the ring direction (<code>check.only=TRUE</code>) or checks and
corrects the polygon direction (<code>check.only=FALSE</code>)</dd>

</dl>

check_ring_dir: Polygon rings directions are checked and corrected if asked.

Description

Usage

Value

Arguments

Examples