apply_label_placement

When <code>placement_opts</code> is <code>NULL</code>, defaults to eunoia's raycast + POI
tether.

internal

Generate area-proportional Euler diagrams using numerical
optimization. A Euler diagram is a generalization of a Venn diagram,
relaxing the criterion that all interactions need to be represented.
Diagrams may be fit with circles, ellipses, squares, and rectangles via a
wide range of inputs and can be visualized in numerous ways.

Johan Larsson

eulerr

Area-Proportional Euler and Venn Diagrams

A. Jonathan R. Godfrey

Peter Gustafsson

David H. Eberly

Emanuel Huber

Florian Privé

apply_label_placement function

<dl><dt>centers</dt>
<dd>the per-region tag data frame from <code>setup_geometry()</code></dd>
<dt>container_data</dt>
<dd>the complement (container) region's data</dd>
<dt>shapes</dt>
<dd>the diagram's <code>$shapes</code> data frame</dd>
<dt>labels, quantities, annotations</dt>
<dd>the three tag component parameter
lists, each with a <code>$gp</code></dd>
<dt>placement_opts</dt>
<dd>placement options, or <code>NULL</code> for eunoia's defaults</dd>
<dt>do_complement_label</dt>
<dd>whether the complement gets a tag too</dd>
<dt>limits</dt>
<dd>a list of <code>xlim</code>/<code>ylim</code> to place against and widen</dd>
<dt>n_vertices</dt>
<dd>number of vertices used to discretize each shape</dd>
<dt>label_precision</dt>
<dd>number of decimals used when rendering quantities</dd>
<dt>re_measure_threshold</dt>
<dd>relative widening of the short side that
triggers a second placement pass</dd></dl>

Arguments

Run eunoia label placement, expanding limits so exterior labels are
not clipped. Drives one initial pass plus one re-measure pass when
the limits widened by more than re_measure_threshold on the short
side. Updates centers (and the complement slot on container_data)
in place with placed (x, y) plus kind, tether_x, tether_y,
leader_end_x, leader_end_y. — apply_label_placement

<dl>

<dt>centers</dt>
<dd>the per-region tag data frame from <code>setup_geometry()</code></dd>


<dt>container_data</dt>
<dd>the complement (container) region's data</dd>


<dt>shapes</dt>
<dd>the diagram's <code>$shapes</code> data frame</dd>


<dt>labels, quantities, annotations</dt>
<dd>the three tag component parameter
lists, each with a <code>$gp</code></dd>


<dt>placement_opts</dt>
<dd>placement options, or <code>NULL</code> for eunoia's defaults</dd>


<dt>do_complement_label</dt>
<dd>whether the complement gets a tag too</dd>


<dt>limits</dt>
<dd>a list of <code>xlim</code>/<code>ylim</code> to place against and widen</dd>


<dt>n_vertices</dt>
<dd>number of vertices used to discretize each shape</dd>


<dt>label_precision</dt>
<dd>number of decimals used when rendering quantities</dd>


<dt>re_measure_threshold</dt>
<dd>relative widening of the short side that
triggers a second placement pass</dd>

</dl>

Run eunoia label placement, expanding limits so exterior labels are
not clipped. Drives one initial pass plus one re-measure pass when
the limits widened by more than <code>re_measure_threshold</code> on the short
side. Updates <code>centers</code> (and the complement slot on <code>container_data</code>)
in place with placed <code>(x, y)</code> plus <code>kind</code>, <code>tether_x</code>, <code>tether_y</code>,
<code>leader_end_x</code>, <code>leader_end_y</code>.

Description

Usage

Arguments

Details