leaflet-simple-map-screenshoter

leaflet-simple-map-screenshoter

Leaflet promise based plugin which take screenshot of map.
Used dom-to-image.

$3

``
npm install leaflet-simple-map-screenshoter --save
`

$3

Open (see in /examples)

$3

Add save screenshot button to leaflet control panel
`javascript
import * as L from 'leaflet'
// import script after leaflet
import {SimpleMapScreenshoter} from 'leaflet-simple-map-screenshoter'

new SimpleMapScreenshoter().addTo(this.map)
`

From cdn
`html



`

For custom usage
`javascript
import 'leaflet'
// import script after leaflet
import 'leaflet-simple-map-screenshoter'

let pluginOptions = {
cropImageByInnerWH: true, // crop blank opacity from image borders
hidden: false, // hide screen icon
preventDownload: false, // prevent download on button click
domtoimageOptions: {}, // see options for dom-to-image
position: 'topleft', // position of take screen icon
screenName: 'screen', // string or function
iconUrl: ICON_SVG_BASE64, // screen btn icon base64 or url
hideElementsWithSelectors: ['.leaflet-control-container'], // by default hide map controls All els must be child of _map._container
mimeType: 'image/png', // used if format == image,
caption: null, // string or function, added caption to bottom of screen
captionFontSize: 15,
captionFont: 'Arial',
captionColor: 'black',
captionBgColor: 'white',
captionOffset: 5,
// callback for manually edit map if have warn: "May be map size very big on that zoom level, we have error"
// and screenshot not created
onPixelDataFail: async function({ node, plugin, error, mapPane, domtoimageOptions }) {
// Solutions:
// decrease size of map
// or decrease zoom level
// or remove elements with big distanses
// and after that return image in Promise - plugin._getPixelDataOfNormalMap
return plugin._getPixelDataOfNormalMap(domtoimageOptions)
}
}

this.simpleMapScreenshoter = L.simpleMapScreenshoter(pluginOptions).addTo(this.map)
let format = 'blob' // 'image' - return base64, 'canvas' - return canvas
let overridedPluginOptions = {
mimeType: 'image/jpeg'
}
this.simpleMapScreenshoter.takeScreen(format, overridedPluginOptions).then(blob => {
alert('done')
// FileSaver.saveAs(blob, 'screen.png')
}).catch(e => {
console.error(e)
})
`

$3

`
simpleMapScreenshoter.click - on leaflet control panel take screen btn click
simpleMapScreenshoter.takeScreen - start build screenshot
simpleMapScreenshoter.done - screenshot build ended
simpleMapScreenshoter.error - on error, return Error instance
``