[GIS] Dynamic Map Service with Zoom Slider in arcgis by API for javascript

arcgis-javascript-api

I have ArcGISDynamicMapServiceLayer and I want to show Zoom Slider by API 3.2 for javascript

Best Answer

The ZoomSlider appears only when your map has a set of resolutions or LODs as they are called. If your map has a tiled layer then it automatically gets the LODs from that particular Map service.

If you want this ZoomSlider on a Map with contains only Dynamic Map services, you will have to set the LODs your self.

This samples shows how you can do so: Set visible scales

Related Solutions

[GIS] ArcGIS Javascript API – Refresh

Replace getImageUrl and modify the url before passing it to the callback:

    layer = new esri.layers.WMSLayer("http://sampleserver1c.arcgisonline.com/ArcGIS/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/WMSServer", {
        visibleLayers: ['1', '2']
    });

    function extendLayer(layer)
    {
        var getImageUrl, tick;

        tick = 0;
        getImageUrl = layer.getImageUrl;

        layer.setDisableClientCaching = layer.setDisableClientCaching || function(disable)
        {
            if (disable)
            {
                layer.getImageUrl = function (extent, width, height, callback) {
                    var result = getImageUrl.call(layer, extent, width, height, function (url) {
                        callback.call(layer, url + "&_c=" + tick++);
                    });
                    return result;
                };
            }
            else
            {
                layer.getImageUrl = getImageUrl;
            }
        };
        return layer;
    }

    extendLayer ( layer ).setDisableClientCaching ( true );

    setInterval(function () {
        layer.refresh();
    }, 5000);

    map.addLayer(layer);

[GIS] How to use Zoom Slider like the older version in Arcgis Javacript API 3.3

Please check the following code with example and I have modified the sample and inserted few references.

Check out this JS fiddle http://jsfiddle.net/u7WNt/6/ llet us know if you have any questions..thanks

Best Answer

Related Solutions

[GIS] ArcGIS Javascript API – Refresh

[GIS] How to use Zoom Slider like the older version in Arcgis Javacript API 3.3

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