JASON-RPC Example of Simagis Live Image Access API with compression

getImageAccessURL

// Example of Json-RPC API for Simagis Live Server, learn more about Json-RPC at http://json-rpc.org/
// Json-RPC Library for JavaScript http://github.com/gimmi/jsonrpcjs/
//

// 1. Create Json-RPC Object
var rpc = new jsonrpc.JsonRpc('http://host.simagis.com/live-json-rpc/api');

var workspace = 'vk';
var projectId = '053e8d4d-ebfc-488a-bc2c-c826e41fe43d';
projectId = prompt('Enter Project ID', projectId );
rpc.call('openImage', workspace, projectId, {
    success: function (result) {
        showResult(result);
    },
    failure: function (reason) {
        alert('Method call failed because of ' + reason);
    },
    scope: window
});

function showResult(result) {
    var outputElement = document.getElementById('output');
    outputElement.innerHTML = 'Result of rpc.call method: <pre>' + JSON.stringify(result, null, '    ')
    + '</pre><hr>';

    var centerX = Math.round(result.image.width / 2);
    var centerY = Math.round(result.image.height / 2);

    var fromX = 0;
    var fromY = 0;
    var toX = result.image.width;
    var toY = result.image.height;
    var targetWidth = prompt("Enter output Image width in pixels", "1000");
    var compression = Math.round(result.image.width / targetWidth / 2) * 2;

    var imageURL = result.connection.url + '?image=' + result.image.id + '&' +
        'region=' + fromX + ',' + fromY + ',' + toX + ',' + toY + '&compression=' + compression ;


    outputElement.innerHTML += 'Image Access URL:'
    + '<br><a href="' + imageURL + '" target="_blank">' + imageURL + '</a>'
    + '<br>Change region coordinates in Image Access URL to extract different region.'
    + ' Height, width and region coordinate values are in pixels.'
    + '<br><br><a href="/live/layers/view.jsp?name=Users/' + workspace + '/' + projectId
    + '" target="_blank">Open Live Image</a>';
}