Developer's Guide - MapGuide Open Source - OSGeo

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Mapping Service The Mapping Service creates eMap and ePlot DWFs. Generating an eMap DWF requires the DWF version and the URI of the map agent. Note that the HTTP header must include content length information, as in the following example. $dwfVersion = new MgDwfVersion("6.01", "1.2"); $mapAgentUri = 'http://localhost:8008/mapguide/mapagent/mapagent.exe'; $byteReader = $mappingService->GenerateMap($map, $mapAgentUri, $dwfVersion); $outputBuffer = ''; $buffer = ''; while ($byteReader->Read($buffer, 50000) != 0) { $outputBuffer .= $buffer; } header('Content-Type: ' . $byteReader->GetMimeType()); header('Content-Length: ' . strlen($outputBuffer)); echo $outputBuffer; An ePlot DWF is designed primarily for offline viewing or printing. It includes an MgPlotSpecification that defines the page size and margins. It can also include an optional MgLayout that defines additional components to include in the plot, like a legend or a custom logo. The layout is based on a print layout in the repository. For a description of the PrintLayout schema, see the Map<strong>Guide</strong> Web API Reference. To create an ePlot DWF with more than one sheet, use an MgMapPlotCollection, where each item in the collection is an MgMapPlot that describes a single sheet. NOTE The map name becomes the sheet name in the multi-plot DWF. Because each sheet in the DWF must have a unique name, you must create a separate MgMap object for each sheet in the DWF. The following example creates a multi-plot DWF with two sheets. The second sheet displays the same map area as the first, but it adds the title and legend information from the print layout. 98 | Chapter 7 Custom Output
$dwfVersion = new MgDwfVersion("6.01", "1.2"); $plotSpec = new MgPlotSpecification(8.5, 11, MgPageUnitsType::Inches); $plotSpec->SetMargins(0.5, 0.5, 0.5, 0.5); $plotCollection = new MgMapPlotCollection(); $plot1 = new MgMapPlot($map, $plotSpec, $layout); $plotCollection->Add($plot1); // Create a second map for the second sheet in the DWF. This // second map uses the print layout // to display a page title and legend. $map2 = new MgMap(); $map2->Create($resourceService, $map->GetMapDefinition(), 'Sheet 2'); $layoutRes = new MgResourceIdentifier( "Library://Samples/Sheboygan/Layouts/SheboyganMap.PrintLayout"); $layout = new MgLayout($layoutRes, "City of Sheboygan", MgPageUnitsType::Inches); $plot2 = new MgMapPlot($map2, $map->GetViewCenter()->GetCoordinate(), $map->GetViewScale(), $plotSpec, $layout); $plotCollection->Add($plot2); $byteReader = $mappingService-> GenerateMultiPlot($plotCollection, $dwfVersion); // Now output the resulting DWF. $outputBuffer = ''; $buffer = ''; while ($byteReader->Read($buffer, 50000) != 0) { $outputBuffer .= $buffer; } header('Content-Type: ' . $byteReader->GetMimeType()); header('Content-Length: ' . strlen($outputBuffer)); echo $outputBuffer; Mapping Service | 99
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MapGuide Open Source Developer’s
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Contents Chapter 1 Introduction . .
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Another Way To Create Layers . . .
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What This Guide Covers This guide d
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This next sample MapGuide page disp
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Example Code This sample illustrate
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echo 'Map ' . $map->GetName() . ' u
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displays the spatial reference syst
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Viewer Frames Most custom MSPs disp
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Viewer Sample Application - Zoom
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Embedding a Viewer in Your Own Page
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Resources and Repositories A MapGui
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$mapDefId = new MgResourceIdentifie
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Overview of Layers Layers represent
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Layer Style Layer Visibility The da
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function OnPageLoad() { parent.Zoom
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MgInitializeWebTier ($webconfigFile
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Working With Feature Data 3 In this
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Querying Feature Data In order to w
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Examples These examples assume that
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$districtQuery = new MgFeatureQuery
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$districtQuery = new MgFeatureQuery
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There are different selection tools
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Script command. See Example: Listin
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: ■ Images can be copied to the Win
Page 108 and 109: G geographic coordinates 74 geometr
Page 110: Viewer, embedded in HTML page 17 Vi
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