SVG map-based navigation for Craft CMS. More info: http://localhost/_pog/craft-snippets-craft/web/articles/creating-map-based-navigation-in-craft-cms

svg_map.twig

{# settings #}
{% set map = include('usa.svg') %}
{% set mapLinks = entry.mapLinks.all() %}

{# logic #}
{% set map = map|retconRemove('style') %}
{% set regionsUsed = [] %}
{% for link in mapLinks %}
	{% if link.linkRegion is not empty and link.linkEntry.exists() and link.linkRegion not in regionsUsed %}
		{% set regionsUsed = regionsUsed|merge([link.linkRegion]) %}
	    {% set linkRegion = link.linkRegion|upper %}
	    {% set linkUrl = link.linkEntry.one().url %}
	    {% set map = map|retconWrap( 'path#'~linkRegion, 'a#link-'~linkRegion ) %}
	    {% set map = map|retconAttr( 'a#link-'~linkRegion, { 'href' : linkUrl } ) %}
    {% endif %}
{% endfor %}

{# output #}
{{map|raw}}