[mapguide-users] create a temporary !Mapdefinition and add a layer

Tue Jan 6 04:30:15 EST 2009

Hi Kenneth,

Thanks to your precisions, all the code is correct. 

I have a specific question. The new temporary WebLayout appears in a new window. Is it possible to update only the current viewer with this new temporary WebLayout? I don't find specific command in Maestro for it. 

Invoke URL command:

-> Extra properties

Target : 

*	NewWindow = WebLayout in a new window 
*	SpecifiedFrame = WebLayout in a new window (I have used the "id" of the Viewer Frame)
*	TaskPane = WebLayout in the Taskpane 

Thanks 

Arnaud De Groof

The new code:

<?php

// Vital includes.

include "../../mapviewerphp/constants.php";

include "../../mapviewerphp/common.php";

$args = ($_SERVER['REQUEST_METHOD'] == "POST") ? $_POST : $_GET;

$sessionId = $args['SESSION'];

$mapName = $args['MAPNAME'];

$layerName1 = 'YYY';

$rlLayerResourceId = "Library://XXX/$layerName1.LayerDefinition";

InitializeWebTier();

$userInfo = new MgUserInformation($sessionId);

$siteConnection = new MgSiteConnection();

$siteConnection->Open($userInfo);

$resourceService = $siteConnection->CreateService(MgServiceType::ResourceService);

// Read the MapDefinition into an XML DOM document object.

$md = " Library://XXX/$mapName.MapDefinition "; // TODO Constant!

$mdResourceId = new MgResourceIdentifier($md);

$mdReader = $resourceService->GetResourceContent($mdResourceId);

$mdXml = $mdReader->ToString();

$mdDomDoc = DOMDocument::loadXML($mdXml); 

// Add a new MapLayer

$targetNode = $mdDomDoc->getElementsByTagName("MapLayer")->item(0);

$newNode = $targetNode->parentNode->insertBefore(new DOMElement("MapLayer"), $targetNode); 

$newNode->appendChild($mdDomDoc->createElement("Name", $layerName1));

$newNode->appendChild($mdDomDoc->createElement("ResourceId", $rlLayerResourceId));

$newNode->appendChild($mdDomDoc->createElement("Selectable", "false"));

$newNode->appendChild($mdDomDoc->createElement("ShowInLegend", "false"));

$newNode->appendChild($mdDomDoc->createElement("LegendLabel"));

$newNode->appendChild($mdDomDoc->createElement("ExpandInLegend", "false"));

$newNode->appendChild($mdDomDoc->createElement("Visible", "true"));

$newNode->appendChild($mdDomDoc->createElement("Group"));

// Save the updated MapDefinition

$updatedXml = $mdDomDoc->saveXML();

$byteSource = new MgByteSource($updatedXml, strlen($updatedXml));

// Create the temporary MapDefinition

$sessionMapName = $mdResourceId->GetName();

$sessionMapDefinition = "Session:$sessionId//$sessionMapName.MapDefinition";

$sessionResourceId = new MgResourceIdentifier($sessionMapDefinition);

// Write the updated MapDefinition

$resourceService->SetResource($sessionResourceId, $byteSource->GetReader(), null);

//Test the updated MapDefinition

$md1 = "Session:$sessionId//X.MapDefinition";

$mdResourceId2 = new MgResourceIdentifier($md1);

$mdReader2 = $resourceService->GetResourceContent($mdResourceId2);

$mdXml2 = $mdReader2->ToString();

$mdDomDoc2 = DOMDocument::loadXML($mdXml2);

// Read the WebLayout into an XML DOM document object.

$wl = "Library://XXX/XXX.WebLayout"; // TODO Constant!

$wlResourceId = new MgResourceIdentifier($wl);

$wlReader = $resourceService->GetResourceContent($wlResourceId);

$wlXml = $wlReader->ToString();

$wlDomDoc = DOMDocument::loadXML($wlXml); 

// Now, update the MapDefinition.

$mapdef = $wlDomDoc->getElementsByTagName("ResourceId")->item(0);

$mapdef->nodeValue = "$md1";

// Prepare the updated XML to be written out to the session.

$wlupdatedXml = $wlDomDoc->saveXML();

$wlbyteSource = new MgByteSource($wlupdatedXml, strlen($wlupdatedXml));

// Create a temporary WebLayout

$wlsessionMapName = $wlResourceId->GetName();

$wlsessionWebLayout = "Session:$sessionId//$wlsessionMapName.WebLayout";

$wlsessionResourceId = new MgResourceIdentifier($wlsessionWebLayout);

// Write the updated WebLayout to the session.

$resourceService->SetResource($wlsessionResourceId, $wlbyteSource->GetReader(), null);

// Redirect to the Ajax viewer.

$redirectTo = "mapguide/mapviewerajax/?SESSION=$sessionId&WEBLAYOUT=$wlsessionWebLayout";

$host = $_SERVER["HTTP_HOST"];

$url = "http://$host/$redirectTo";

//Test

$f = 'test.txt';

$handle = fopen($f,"w");

fwrite($handle, "test1:<".$mdXml.">\r\ntest 2 :<".$updatedXml.">\r\ntest 3 :<".$wlXml.">\r\ntest 4 :<".$wlupdatedXml.">\r\ntest 5 :<".$url.">");

fclose($handle);

// Redirect!

header("Location: $url");

exit;

?>

________________________________

From: mapguide-users-bounces at lists.osgeo.org [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Kenneth Skovhede, GEOGRAF A/S
Sent: dimanche 28 décembre 2008 12:34
To: MapGuide Users Mail List
Subject: Re: [mapguide-users] create a temporary !Mapdefinition and add a layer

You must also make a temporary WebLayout. 
This WebLayout must then point to the temporary MapDefinition.

In one of the last lines, you redirect to the temporary WebLayout.
If that temporary WebLayout points to the temporary MapDefinition,
all should be good. (Assuming layer is visible, in range, on top, etc.).

Regards, Kenneth Skovhede, GEOGRAF A/S

Arnaud De Groof skrev: 

Hi,

I have found my error. In fact, I used the command "SetRessource" with a WebLayout in place of a MapDefinition. Now the script seems ok.

How to load the WebLayout with the new MapDefinition (with the new layer) and not the MapDefinition coming from the library (without the new layer)?

New code:

<?php

include "../../mapviewerphp/constants.php";

include "../../mapviewerphp/common.php";

// Initialize

    MgInitializeWebTier($webconfigFilePath);

    $args = ($_SERVER['REQUEST_METHOD'] == "POST") ? $_POST : $_GET;

    $sessionId = $args['SESSION'];

    $mapName = $args['MAPNAME'];

    $layerName1 = 'YYY';

    $userInfo = new MgUserInformation($sessionId);

    $siteConnection = new MgSiteConnection();

    $siteConnection->Open($userInfo);

    $resourceService = $siteConnection->CreateService(MgServiceType::ResourceService);

    $wl = "Library://XXX/XXX.WebLayout"; // TODO Constant!

// Build a string pointing to the new layer in the Session

    $rlLayerResourceId = "Session:$sessionId//$layerName1.LayerDefinition";

// Read the XML of the Library Map Definition

   $md ="Library://XXX/$mapName.MapDefinition";

   $mdResourceId = new MgResourceIdentifier($md);  

   $mdReader = $resourceService->GetResourceContent($mdResourceId);

   $mdXml = $mdReader->ToString();

   $mdDomDoc = DOMDocument::loadXML($mdXml); 

// Insert the layer in the MapDefinition

   $targetNode = $mdDomDoc->getElementsByTagName("MapLayer")->item(0);

   $newNode = $targetNode->parentNode->insertBefore(new DOMElement("MapLayer"), $targetNode); 

   $newNode->appendChild($mdDomDoc->createElement("Name", $layerName1));

   $newNode->appendChild($mdDomDoc->createElement("ResourceId", $rlLayerResourceId));

   $newNode->appendChild($mdDomDoc->createElement("Selectable", "false"));

   $newNode->appendChild($mdDomDoc->createElement("ShowInLegend", "false"));

   $newNode->appendChild($mdDomDoc->createElement("LegendLabel"));

   $newNode->appendChild($mdDomDoc->createElement("ExpandInLegend", "false"));

   $newNode->appendChild($mdDomDoc->createElement("Visible", "true"));

   $newNode->appendChild($mdDomDoc->createElement("Group"));

// Write the XML out to form the Session MapDefinition

   $updatedXml = $mdDomDoc->saveXML();

   $byteSource = new MgByteSource($updatedXml, strlen($updatedXml));

// Create a new MapDefinition (session repository).

   $sessionMapName = $mdResourceId->GetName();

   $sessionMapDefinition = "Session:$sessionId//$sessionMapName.MapDefinition";

   $sessionResourceId = new MgResourceIdentifier($sessionMapDefinition);

// Write the updated MapDefinition

   $resourceService->SetResource($sessionResourceId, $byteSource->GetReader(), null);

// Test the new MapDefinition

   $mdtest = "Session:$sessionId///$mapName.MapDefinition";

   $mdResourceIdtest = new MgResourceIdentifier($mdtest);

   $mdReadertest = $resourceService->GetResourceContent($mdResourceIdtest);

   $mdXmltest = $mdReader2->ToString();

   $mdDomDoctest = DOMDocument::loadXML($mdXmltest);

// Redirect to the Ajax viewer pointing at the map at the desired coordinates.

   $redirectTo = "mapguide/mapviewerajax/?WEBLAYOUT=$sessionWebLayout&SESSION=$sessionId";

   $host = $_SERVER["HTTP_HOST"];

   $url = "http://$host/$redirectTo" <http://$host/$redirectTo> ;

// Redirect!

   header("Location: $url");

   exit;

Thanks,

Arnaud De Groof

________________________________

From: mapguide-users-bounces at lists.osgeo.org [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Kenneth Skovhede, GEOGRAF A/S
Sent: mardi 23 décembre 2008 8:15
To: MapGuide Users Mail List
Subject: Re: [mapguide-users] create a temporary !Mapdefinition and add a layer

The previous error you had indicated that the xml was invalid.

This is likely because you are not sending the entire xml document to the server.
Perhaps someone with better PHP skills can help you out.

Regards, Kenneth Skovhede, GEOGRAF A/S

Arnaud De Groof skrev: 

I have changed the line: "$byteSource = new MgByteSource($updatedXml, strlen($updatedXml));" by "$byteSource = new MgByteSource($updatedXml, mb_strlen($updatedXml));"  without success.

The xml code coming from the initial MapDefinition was carried out thanks to Maestro. I join here the result of the $updatedXml:

<?xml version="1.0" encoding="utf-8"?>

<MapDefinition xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" <http://www.w3.org/2001/XMLSchema-instance>  xmlns:xsd="http://www.w3.org/2001/XMLSchema" <http://www.w3.org/2001/XMLSchema>  xsi:noNamespaceSchemaLocation="MapDefinition-1.0.0.xsd">

  <Name>New Map</Name>

  <CoordinateSystem>PROJCS["WGS 84 / UTM zone 48N",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",105],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","32648"]]</CoordinateSystem>

  <Extents>

    <MinX>608404.999984747</MinX>

    <MaxX>641160.000015253</MaxX>

    <MinY>1121406.87752137</MinY>

    <MaxY>1142427.99990895</MaxY>

  </Extents>

  <BackgroundColor>ffffffff</BackgroundColor>

  <Metadata/>

  <MapLayer><Name>YYY</Name><ResourceId>Session:92b640a0-ffff-ffff-8002-001aa0d22567_fr_7F0000010AFC0AFB0AFA// YYY.LayerDefinition</ResourceId><Selectable>false</Selectable><ShowInLegend>false</ShowInLegend><LegendLabel/><ExpandInLegend>false</ExpandInLegend><Visible>true</Visible><Group/></MapLayer><MapLayer>

    <Name>Station</Name>

    <ResourceId>Library://XXX/Station.LayerDefinition</ResourceId>

    <...

Thanks for your help.

Regards,

Arnaud De Groof

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