https://github.com/arbakker/getmap-scale-calculator
Web app to debug visibility of scale dependent WMS layers
https://github.com/arbakker/getmap-scale-calculator
cartography openlayers6 wms
Last synced: about 1 year ago
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Web app to debug visibility of scale dependent WMS layers
- Host: GitHub
- URL: https://github.com/arbakker/getmap-scale-calculator
- Owner: arbakker
- Created: 2020-05-26T15:44:51.000Z (about 6 years ago)
- Default Branch: master
- Last Pushed: 2022-03-26T19:08:02.000Z (about 4 years ago)
- Last Synced: 2023-08-04T01:59:26.970Z (almost 3 years ago)
- Topics: cartography, openlayers6, wms
- Language: JavaScript
- Homepage: https://arbakker.github.io/getmap-scale-calculator/
- Size: 2.51 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# GetMap Scale Calculator
Application to debug visibility of scale dependent WMS layers. Calculates the scale denominator for a WMS request.
Popular WMS servers extend WMS service with dpi parameters, [source](https://github.com/mapserver/mapserver/issues/4797#issue-21368971):
- MapServer with MAP_RESOLUTION=value
- GeoServer with FORMAT_OPTIONS=dpi:value
- QGIS Server with DPI=value
Example WMS GetMap requests to use:
bro-bodemkaart:
```
https://geodata.nationaalgeoregister.nl/bzk/bro-bodemkaart/wms/v1_0?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&FORMAT=image%2Fpng&TRANSPARENT=true&layers=view_soil_area&CRS=EPSG%3A28992&STYLES=&WIDTH=1634&HEIGHT=1288&BBOX=171319.68%2C430456.32%2C193280.64%2C447767.04&TRANSPARENT=TRUE&MAP_RESOLUTION=72&FORMAT_OPTIONS=dpi:72&DPI=72
```
kadastralekaartv3:
```
https://geodata.nationaalgeoregister.nl/kadastralekaartv3/wms?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&FORMAT=image%2Fpng&TRANSPARENT=true&layers=perceel&CRS=EPSG%3A28992&STYLES=&WIDTH=2881&HEIGHT=1247&BBOX=190289.61%2C442282.47%2C191499.63%2C442806.20999999996&MAP_RESOLUTION=96&FORMAT_OPTIONS=dpi:96&DPI=96
```