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How to disable imageSmoothingEnabled for geoImageLayer?

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0

Considering the code below (which uses openlayers and Viglino's ol-ext), how do I disable imageSmoothingEnabled for the geoImageLayer? I am trying to achieve the same thing as in this question, but for the geoImageLayer, which is part of Viglino's ol-ext.

var map = new ol.Map({

  target: 'map',

  view: new ol.View({

    zoom: 18,

    center: ol.proj.fromLonLat([4.8728,52.3316])

  }),

  layers: [new ol.layer.Tile({

    source: new ol.source.OSM()

  })]

})



var geoImageLayer = new ol.layer.Image({

  name: "Georef",

  opacity: 0.5,

  source: new ol.source.GeoImage({

    url: 'image.jpg',

    imageCenter: ol.proj.fromLonLat([4.8728,52.3316]),

    projection: 'EPSG:3857',

    imageScale: [1, 1]

  })

})

map.addLayer(geoimg);

The internet says that this should work:

map.on('precompose', function(evt) {

  evt.context.imageSmoothingEnabled = false;

});

And it does work for the background OSM layer, but it does nothing for the geoImageLayer

I've also tried,

geoImageLayer.on('change', function(evt) {

  evt.target.values_.source.canvas_.canvas_.getContext('2d').imageSmoothingEnabled = false;

});

but it didn't do the trick. Probably because I'm modifying a copy of the actual layer, but I don't have any other ideas.

Here is a jsfiddle with the above code.

raster openlayers javascript

share

asked 5 mins ago

AndreiAndrei

16017

add a comment | 

0

Considering the code below (which uses openlayers and Viglino's ol-ext), how do I disable imageSmoothingEnabled for the geoImageLayer? I am trying to achieve the same thing as in this question, but for the geoImageLayer, which is part of Viglino's ol-ext.

var map = new ol.Map({

  target: 'map',

  view: new ol.View({

    zoom: 18,

    center: ol.proj.fromLonLat([4.8728,52.3316])

  }),

  layers: [new ol.layer.Tile({

    source: new ol.source.OSM()

  })]

})



var geoImageLayer = new ol.layer.Image({

  name: "Georef",

  opacity: 0.5,

  source: new ol.source.GeoImage({

    url: 'image.jpg',

    imageCenter: ol.proj.fromLonLat([4.8728,52.3316]),

    projection: 'EPSG:3857',

    imageScale: [1, 1]

  })

})

map.addLayer(geoimg);

The internet says that this should work:

map.on('precompose', function(evt) {

  evt.context.imageSmoothingEnabled = false;

});

And it does work for the background OSM layer, but it does nothing for the geoImageLayer

I've also tried,

geoImageLayer.on('change', function(evt) {

  evt.target.values_.source.canvas_.canvas_.getContext('2d').imageSmoothingEnabled = false;

});

but it didn't do the trick. Probably because I'm modifying a copy of the actual layer, but I don't have any other ideas.

Here is a jsfiddle with the above code.

raster openlayers javascript

share

asked 5 mins ago

AndreiAndrei

16017

add a comment | 

Considering the code below (which uses openlayers and Viglino's ol-ext), how do I disable imageSmoothingEnabled for the geoImageLayer? I am trying to achieve the same thing as in this question, but for the geoImageLayer, which is part of Viglino's ol-ext.

var map = new ol.Map({

  target: 'map',

  view: new ol.View({

    zoom: 18,

    center: ol.proj.fromLonLat([4.8728,52.3316])

  }),

  layers: [new ol.layer.Tile({

    source: new ol.source.OSM()

  })]

})



var geoImageLayer = new ol.layer.Image({

  name: "Georef",

  opacity: 0.5,

  source: new ol.source.GeoImage({

    url: 'image.jpg',

    imageCenter: ol.proj.fromLonLat([4.8728,52.3316]),

    projection: 'EPSG:3857',

    imageScale: [1, 1]

  })

})

map.addLayer(geoimg);

The internet says that this should work:

map.on('precompose', function(evt) {

  evt.context.imageSmoothingEnabled = false;

});

And it does work for the background OSM layer, but it does nothing for the geoImageLayer

I've also tried,

geoImageLayer.on('change', function(evt) {

  evt.target.values_.source.canvas_.canvas_.getContext('2d').imageSmoothingEnabled = false;

});

but it didn't do the trick. Probably because I'm modifying a copy of the actual layer, but I don't have any other ideas.

Here is a jsfiddle with the above code.

raster openlayers javascript

share

asked 5 mins ago

AndreiAndrei

16017

var map = new ol.Map({

  target: 'map',

  view: new ol.View({

    zoom: 18,

    center: ol.proj.fromLonLat([4.8728,52.3316])

  }),

  layers: [new ol.layer.Tile({

    source: new ol.source.OSM()

  })]

})



var geoImageLayer = new ol.layer.Image({

  name: "Georef",

  opacity: 0.5,

  source: new ol.source.GeoImage({

    url: 'image.jpg',

    imageCenter: ol.proj.fromLonLat([4.8728,52.3316]),

    projection: 'EPSG:3857',

    imageScale: [1, 1]

  })

})

map.addLayer(geoimg);

map.on('precompose', function(evt) {

  evt.context.imageSmoothingEnabled = false;

});

geoImageLayer.on('change', function(evt) {

  evt.target.values_.source.canvas_.canvas_.getContext('2d').imageSmoothingEnabled = false;

});

share

asked 5 mins ago

AndreiAndrei

16017

share

asked 5 mins ago

AndreiAndrei

16017

asked 5 mins ago

AndreiAndrei

16017

asked 5 mins ago

AndreiAndrei

16017