Developer's Guide - MapGuide Open Source - OSGeo

Recommendations

Info

Additional Parameters to an Invoke URL Command With this release of Map<strong>Guide</strong>, the current selection is the only variable that can be passed as part of an Invoke URL command. To pass the current selection, edit the web layout. Define a new Invoke URL command. On the Additional Parameters tab, enter a key and value. The key must be a valid HTTP POST key. For the value, enter $CurrentSelection. Add the command to the toolbar, context menu, or task bar menu. When the command is executed, the current selection is passed to the page, along with the standard variables like SESSION and MAPNAME. For example, if you define the key SEL to have the value $CurrentSelection, then when the URL is invoked $selection = $_POST['SEL']; gets the current selection, in XML format. See Working With the Active Selection (page 46) for details about using the XML data. Passing Parameters From an Invoke Script command An Invoke Script command in a web layout can be used to pass custom parameters to a page. The parameters can be any values that are available via the Viewer API. To pass parameters, edit the web layout. Define a new Invoke Script command. On the Additional Parameters tab, enter the JavaScript code to retrieve the values to be passed. Add the command to the toolbar, context menu, or task bar menu. The JavaScript code can call Viewer API functions or other functions to retrieve values. To pass the parameters to a page, call the Submit method of the formFrame with the parameters, the page URL, and the name of the target frame. For example, if you wrap custom HTML around the Viewer, you could define JavaScript functions in the wrapper, then call these functions from an Invoke 44 | Chapter 3 Working With Feature Data
Script command. See Example: Listing Selected Parcels (DWF Viewer) (page 49). NOTE The parameters must include standard parameters like SESSION and MAPNAME, if they are needed. Passing Parameters From the Task Pane Frame Passing parameters from the task pane frame is similar to passing them from an Invoke Script command. Use the Viewer API to retrieve values and call the Submit method of the formFrame to pass the values to another page. For example, the following function passes the map view scale and the center point as parameters to a page that opens in a new window. function submitRequest(pageUrl) { xmlSel = parent.parent.mapFrame.GetSelectionXML(); mapScale = parent.parent.mapFrame.GetScale(); mapCenter = parent.parent.mapFrame.GetCenter(); params = new Array( "SESSION", parent.parent.mapFrame.GetSessionId(), "MAPNAME", parent.parent.mapFrame.GetMapName(), "SELECTION", xmlSel, "SCALE", mapScale, "CENTERX", mapCenter.X, "CENTERY", mapCenter.Y ); parent.parent.formFrame.Submit(pageUrl, params, "_blank"); } To call the function, execute it as part of an onClick event or as the action in a form. For example, clicking the following link would execute the function: Click for report Passing Viewer Information to the Web Server | 45
Page 1 and 2: MapGuide Open Source Developer’s
Page 3 and 4: Contents Chapter 1 Introduction . .
Page 5: Another Way To Create Layers . . .
Page 8 and 9: What This Guide Covers This guide d
Page 11 and 12: This next sample MapGuide page disp
Page 13 and 14: Example Code This sample illustrate
Page 15 and 16: echo 'Map ' . $map->GetName() . ' u
Page 17 and 18: displays the spatial reference syst
Page 19 and 20: Viewer Frames Most custom MSPs disp
Page 21 and 22: Viewer Sample Application - Zoom
Page 23 and 24: Embedding a Viewer in Your Own Page
Page 25 and 26: Resources and Repositories A MapGui
Page 27: $mapDefId = new MgResourceIdentifie
Page 30 and 31: Overview of Layers Layers represent
Page 32 and 33: Layer Style Layer Visibility The da
Page 34 and 35: function OnPageLoad() { parent.Zoom
Page 36 and 37: MgInitializeWebTier ($webconfigFile
Page 39 and 40: Working With Feature Data 3 In this
Page 41 and 42: Querying Feature Data In order to w
Page 43 and 44: Examples These examples assume that
Page 45 and 46: $districtQuery = new MgFeatureQuery
Page 47 and 48: $districtQuery = new MgFeatureQuery
Page 49: There are different selection tools
Page 53 and 54: 4 Initialize the MgSelection object
Page 55 and 56: the $layerClassName = $layer->GetFe
Page 57 and 58: The PHP code in this example create
Page 59 and 60: $resourceService = $siteConnection-
Page 61 and 62: Modifying Maps and Layers In this c
Page 63 and 64: This example ■ loads a layer that
Page 65 and 66: } // ... The page then goes on to s
Page 67 and 68: Function CreateScaleRange() CreateA
Page 69 and 70: Function CreateLineTypeStyle() Crea
Page 71 and 72: ... //-----------------------------
Page 73 and 74: Adding Layers To A Map The precedin
Page 75 and 76: function add_layer_resource_to_map(
Page 77 and 78: Analyzing Features In this chapter
Page 79 and 80: ■ MgLineString — a series of co
Page 81 and 82: To create an MgCoordinateSystem obj
Page 83 and 84: ■ Determine the SRS for the featu
Page 85 and 86: Inserting, Deleting, and Updating F
Page 87 and 88: Example $queryOptions = new MgFeatu
Page 89 and 90: } The geometries for the selected f
Page 91 and 92: $map->Save($resourceService); The f
Page 93 and 94: } 'ResourceId')->item(0); $featureS
Page 95 and 96: Digitizing and Redlining In this ch
Page 97 and 98: For example, see task_pane_redlinin
Page 99 and 100: Create a temporary feature source t
Page 101 and 102:
Custom Output In this chapter ■ I
Page 103 and 104:
■ Images can be copied to the Win
Page 105:
$dwfVersion = new MgDwfVersion("6.0
Page 108 and 109:
G geographic coordinates 74 geometr
Page 110:
Viewer, embedded in HTML page 17 Vi
show all

Developer's Guide - MapGuide Open Source - OSGeo

Create successful ePaper yourself

Delete template?

Save as template?