OVERSCANUI KIT
no button at all a worn bezel with weight channels do not converge zero depth instrumented, full of smoke a field of real characters a camera looking out additive, so no shadow hairlines, no new shader no raster, so no scanlines

ov-geomap

src/ov-geomap.js

LIFTED FROM demo/geomap.html

Attributes

attribute
countries
freshread-only as a property: pass it as an attribute, never as a prop
naive
source
src
view

Properties

propertytypekindacceptsstaleness
countriesDataStructuredstructurednot on the reading protocolnot applicable
routesStructuredstructurednot on the reading protocolnot applicable

READ-ONLY PROPERTIES

fresh

The names in bold are also attributes. Assigning one as a prop throws, so set them in markup.

Events

None.

Using it

import 'overscan'
import 'overscan/overscan.css'

<ov-geomap
  countries="../src/ov-countries.js"
  src="../demo/models/geomap-world.json"
  naive
  fresh="600"
  style="inline-size:100%"
></ov-geomap>

The CSS is a separate import in every framework. A single element can be imported on its own instead of the whole kit: import 'overscan/src/ov-chart.js'

A reading is set as a PROPERTY, never an attribute. An attribute is a string, so an array cannot survive one and a null arrives as the word "null", which the protocol would read as a value rather than a dropout.

Every ov: event is bound with addEventListener. The colon has no declarative spelling in Svelte 5, where the on: directive is gone and "onov:commit" is not an identifier, nor in JSX. Vue can bind it.

The wrapper applies attributes ITSELF and hands the framework nothing but a ref. All three frameworks set a prop as a property when the name exists on the element, and this kit has 72 getter-only properties across 39 elements. Assigning one throws, and in React it does not degrade: the whole tree fails to render. 13 elements have a getter-only name that is also a real attribute (at, bearing, digits, duration, floor, fov, fresh, hold, lat, lon, period, pitch, range, ring, rings, span, step, sweep, sweeps, traces, value), which are the ones a reader would naturally pass in markup.