function setFloorplanBlueprintUrl() {
            if ($scope.serverConfig.couchDBUrl && $scope.probablePositionsWrapper.network) {
                for (var attachmentName in $scope.probablePositionsWrapper.network._attachments) {
                    if (attachmentName.indexOf("blueprint") > -1) {
                        $scope.probablePositionsWrapper.getFloorplanBlueprintSrc = $scope.serverConfig.couchDBUrl + "/" + $scope.probablePositionsWrapper.network._id + "/" + attachmentName + "?cache-control-rev=" + $scope.probablePositionsWrapper.network._attachments[attachmentName].revpos;