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TiddlyWiki5/editions/geospatialdemo/tiddlers/Layers.tid

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title: GeoLayers
2023-01-30 08:57:30 +00:00
tags: $:/tags/GeospatialDemo
This is a list of all the tiddlers containing ~GeoJSON layers in this wiki (identified by the tag <<tag "$:/tags/GeoLayer">>). A ~GeoJSON layer identifies a region of the surface of the earth via a series of polygons defined as lines between consecutive points specified via latitude and longitude (and optional elevation). ~GeoJSON layers may also contain associated metadata in JSON format.
You can create new layers by:
* Visit the tiddler for a ~GeoJSON marker and use the button to calculate travel time
* Importing a ~GeoJSON layer
<ul>
<$list filter="[all[shadows+tiddlers]tag[$:/tags/GeoLayer]sort[caption]]">
<li>
<$link>
<$view field="caption"><$view field="title"/></$view>
</$link>
</li>
</$list>
</ul>