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How to develop a Swipe tool for rasters or vectors (Spatial layer) like openlayers or ErdasImagine. Can any one give me the references please

PolyGeo
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Satya Chandra
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  • As per the [Tour] there should only be one question per question and by asking the same question for multiple products this is effectively multiple questions. – PolyGeo May 11 '16 at 10:18

1 Answers1

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In OpenLayers Swipe Control is easy enough to use, the following code should set you up:

var map;
var swipe;

function init() {

    map = new OpenLayers.Map({
        div : "map",
        allOverlays : true
    });

    var osm = new OpenLayers.Layer.OSM();
    var gmap = new OpenLayers.Layer.Google("Google Streets");

    map.addLayers([ osm, gmap ]);

    swipe = new OpenLayers.Control.Swipe(osm);

    map.addControl(swipe);

    map.setCenter(new OpenLayers.LonLat(10.2, 48.9).transform(new OpenLayers.Projection("EPSG:4326"), map.getProjectionObject()), 9);
}

function toggleControl(element) {
    if (element.checked) {
        swipe.activate();
    } else {
        swipe.deactivate();
    }
}

Another example of swipe control in OpenLayers is this, and this.

This question is also a bit similar.

Community
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Hasan Mustafa
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