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wms-save-image

v1.1.0

Published

Download map image from a WMS servere

Downloads

3

Vulnerabilities

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Links

Git

Maintainers

reppenreppen

Keywords

wmsdownload

Readme

Features

Download a single image from a WMS map server.

Companion to map-image-preview. Based on a sample WMS url, will fill in bounds and image dimensions from a JSON file and download the image.

Usage

WMS image downloader v1.0.4

Usage: node wms-save-image <options> [jsonfile]

Options:
   -M  --meta bounds and image dimensions JSON
   -U  --url  WMS URL template
   -O  --out  Target image file

Example

node wms-save-image.js \
   -U "https://openwms.statkart.no/skwms1/wms.topo4.graatone?request=GetMap&SERVICE=WMS&VERSION=1.1.1&BBOX=0,0,1,1&SRS=EPSG:32633&WIDTH=400&HEIGHT=300&LAYERS=topo4graatone_WMS&STYLES=&FORMAT=image/png" \
   -M example/thumbnail.json \
   -O output.png

Sample

Meta

JSON file format

{
  "bbox": {
    "left": 524161.0500020641,
    "bottom": 7590643.169290178,
    "right": 805691.242609148,
    "top": 7853460.758413694
  },
  "image": { "width": 408, "height": 380 }
}

Batch mode operation

Recursive download

find . -type d -exec sh -c "cd \"{}\" && pwd && [ -f thumbnail.json ] && wms-save-image" -U "https://openwms.statkart.no/skwms1/wms.topo4.graatone?request=GetMap&SERVICE=WMS&VERSION=1.1.1&BBOX=0,0,1,1&SRS=EPSG:32633&WIDTH=400&HEIGHT=300&LAYERS=topo4graatone_WMS&STYLES=&FORMAT=image/png" \
  -M thumbnail.json \;

Composite with other image

find . -type d -exec sh -c "cd \"{}\" && pwd && [ -f polygon.32633.geojson ] && convert thumbnail_back.png polygon.32633.png -compose Multiply -composite thumbnail.png" \;