Nehtdx

var map;
//var layerstack=new Array();
var GMLlayercnt=0;
var GMLlayers=new Array();
var GMLcontrols=new Array();
OpenLayers.IMAGE_RELOAD_ATTEMPTS = 7;
OpenLayers.Util.onImageLoadErrorColor = "transparent";

var VLIZGIS = VLIZGIS || ;
VLIZGIS.legend_all_show_controls=true;

/* loads layer from VLIZ servers: geo, mapserver or TMS (Tile Map Server) */
function addOLlayer(layerprop)//end addOLlayer

var nextcolor=0;
var colors=new Array("#FF2222","#22FF22","#FFFF22","#FF22FF","#22FFFF","#BB4444","#44BB44","#BBBB44","#BB44BB","#44BBBB");


function getTileURL(bounds)
var res = this.map.getResolution();
var x = Math.round((bounds.left - this.maxExtent.left) / (res * this.tileSize.w));
var y = Math.round((this.maxExtent.top - bounds.top) / (res * this.tileSize.h));
var z = this.map.getZoom();
var limit = Math.pow(2, z);
if (y = limit)
return null;
else
x = ((x % limit) + limit) % limit;
url = this.url;
path= z + "/" + x + "/" + y + "." + this.type;
if (url instanceof Array)
url = this.selectUrl(path, url);

return url+path;



function addGMLlayer(name,searchURL,hidden,fixedpoint,pref_color,use_url,code_attribute,opacity)

var color;
var size;

if(pref_color) color=(pref_color == 'color' ? "$color" : pref_color );
else color=colors[nextcolor];
if (!opacity) opacity=1;
if(fixedpoint) size=1.5; else size="$size"; ;
var defaultcontext =
getOpacity: function(feature)
return(feature.layer.opacity);

,getColor: function(feature)
if (feature.layer.color.indexOf('#')>-1) return feature.layer.color;
else return feature.attributes["color"];

,getSize: featureGetSize
,getzIndex: function(feature)
if (!isNaN(parseInt(feature.layer.zindex))) return feature.layer.zindex;
else if (!isNaN(parseInt(feature.attributes["zindex"]))) return feature.attributes["zindex"];
else return 0;

,getgraphicName: function(feature)
if (feature.layer.graphicName) return feature.layer.graphicName;
else if (feature.attributes["graphicName"]) return feature.attributes["graphicName"];
else return "circle";

;

var defaulttemplate =
fillColor: "$getColor",
fillOpacity: "$getOpacity",
strokeWidth: 0,
pointRadius: "$getSize",
graphicZIndex: "$getzIndex",
graphicName: "$getgraphicName"
;

var selectedtemplate =
fillColor: "$getColor",
fillOpacity: "$getOpacity",
strokeWidth: 1,
pointRadius: "$getSize",
graphicZIndex: "$getzIndex",
graphicName: "$getgraphicName",
strokeColor: "#66ccff",
cursor: "pointer"
;

var defaultstyle = new OpenLayers.Style(defaulttemplate, context: defaultcontext);
var selectstyle = new OpenLayers.Style(selectedtemplate, context: defaultcontext);
var myStyles = new OpenLayers.StyleMap("default":defaultstyle,"select":selectstyle);

var options=
color: color,
symbolsize: size,
opacity: opacity,
projection: new OpenLayers.Projection("EPSG:4326"),
format: OpenLayers.Format.GML,
formatOptions:
extractStyles: true,
extractAttributes: true,
useurl : use_url,
useattribute: code_attribute
,
nocontrols: true,
rendererOptions: zIndexing: true
;

GMLlayers[GMLlayercnt] = new OpenLayers.Layer.GML('Data:'+name,searchURL ,options);
GMLlayers[GMLlayercnt].styleMap=myStyles;
if(hidden) GMLlayers[GMLlayercnt].visibility=false;
map.addLayer(GMLlayers[GMLlayercnt]);

if(typeof(GMLcontrol)=='object') GMLcontrol.deactivate();

GMLcontrol= new OpenLayers.Control.SelectFeature(
GMLlayers,
hover: true, onSelect: onFeatureSelect , clickFeature: onFeatureClick, onUnselect: onFeatureUnselect );

map.addControl(GMLcontrol);
GMLcontrol.activate();
GMLlayercnt++;
nextcolor=nextcolor+1;
if(nextcolor >= colors.length ) nextcolor=0;


function featureGetSize(feature)
if (!isNaN(parseFloat(feature.layer.symbolsize))) return feature.layer.symbolsize;
else return feature.attributes["size"];


// te definieren in applicatie; gewoon assignem bv onFeatureClick= mijnfunctie
function onFeatureClick(feature)
var code;
code=(feature.layer.formatOptions['useattribute']?feature.attributes[feature.layer.formatOptions['useattribute']]:(feature.attributes['station'] ? feature.attributes['station'] : feature.attributes['code'] ));
code=code.replace(/ /,'');
if(feature.layer.formatOptions['useurl']) window.open(feature.layer.formatOptions['useurl'] + code);


function onFeatureSelect(feature)
OpenLayers.Popup.COLOR="#EEEE00";
var label = (feature.attributes['label'] ? feature.attributes['label']
: "Station: " + feature.attributes['station'] );
var ts ;
if(feature.attributes['observation']) label+= '
' + feature.attributes['observation'];
else if(feature.attributes['datetime']) label+= '
Time: ' + feature.attributes['datetime'];



popup = new OpenLayers.Popup.Anchored('popup',
feature.geometry.getBounds().getCenterLonLat(),
null,
"", null);

popup.autoSize=true;
feature.popup = popup;
map.addPopup(popup);


function onFeatureUnselect(feature)
map.removePopup(feature.popup);
feature.popup.destroy();
feature.popup = null;


function proj()
//used in dataportal


function setlayer(i)
if(map.layers[i].visibility)
if(map.layers[i]==map.baseLayer) return;
map.layers[i].setVisibility(false);
else
if(map.layers[i].isBaseLayer) map.setBaseLayer(map.layers[i]);
map.updateSize();
map.layers[i].setVisibility(true);


if(map.layers[i]!=map.baseLayer)
proj();

getlegend();


function setmultilayer(i, j)
var layernames=getLayersOrdered();
while (i "
if(typeof(map.layers[i].styleMap)!='undefined')
for(ci=1;ci "
if(typeof(map.layers[i].styleMap)!='undefined')
for(ci=1;ci "
else
for(ci=1;ci "

/* opacity
opacity = (map.layers[i].opacity == null

function toggleOption(i,optionname)
var obj;
if(map.layers[i].options[optionname])
obj = eval("(" + optionname + ":false)");

else
obj = eval("(" + optionname + ":true)");

map.layers[i].addOptions(obj);
getlegend();


function checkorder(i)
var ar= new Array(); var order;
order=0;
for(j=0;j