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1 Google Earth Powered by MapGuide. 2© 2006 Autodesk Session Outline MapGuide / Google Earth Integration Overview Demo How it Works and How to Use It.

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Presentation on theme: "1 Google Earth Powered by MapGuide. 2© 2006 Autodesk Session Outline MapGuide / Google Earth Integration Overview Demo How it Works and How to Use It."— Presentation transcript:

1 1 Google Earth Powered by MapGuide

2 2© 2006 Autodesk Session Outline MapGuide / Google Earth Integration Overview Demo How it Works and How to Use It

3 3© 2006 Autodesk MapGuide Components

4 4© 2006 Autodesk Why integrate with Google Earth? Benefits of Google Earth  Google Earth ~ 250,000,000 Downloads!  Google has raised the bar with regards to interfaces to Maps With a MapGuide / Google Earth Integration: 1. Content can be delivered using Google Earth to a wider audience 2. Provides new ways to visualize data in the context of Google’s world 3. MapGuide is the application engine, Google Earth is the user interface and supplier of base map content

5 5© 2006 Autodesk Overview Google Earth Servers MapGuide Server – Queries Database Overlay maps delivered by MapGuide as KML/KMZ Streams base map data over Web Google Earth Client, overlays MapGuide layers on top of Base Map data. Google earth acts as a client to MapGuide Data – privately maintained and owned SHP, SDF, PostGIS, Oracle, ArcSDE, SQL Server, etc.

6 6© 2006 Autodesk Demo…

7 7© 2006 Autodesk Google Earth Integration Flow Web Request to MapGuide 1.Using MapGuide Open Source – built in functions 2.Using Custom application – using PHP,.NET, or Java

8 8© 2006 Autodesk Google Earth Integration Flow Web Request to MapGuide Query Data Source Query to Data Source 1.Custom FDO based queries to data source 2.Built in spatial and analysis capability 3.Any FDO supported data source e.g. SHP, SDF, PostGIS, Oracle, ArcSDE, SQL Server, etc.

9 9© 2006 Autodesk Web Request to MapGuide Query Data Source Generate KML/KMZ file 1.Generate data in 2D or 3D 2.Include custom tooltips Google Earth Integration Flow

10 10© 2006 Autodesk Google Earth Integration Flow Web Request to MapGuide Query Data Source Display on Google Earth Generate KML/KMZ file Display on Google Earth 1.Rendered as an overlay 2.2D or 3D depending on KML/KMZ data

11 11© 2006 Autodesk MapGuide: Network Request CGI APIs The GetMapKml Operation: OPERATION = GetMapKml & VERSION = & USERNAME = Anonymous & Password = & MAPDEFINITION = Library://MyMap.MapDefinition & FORMAT = [KML, KMZ or XML] Returns a KML document containing one Network Link per layer in the Map Definition.

12 12© 2006 Autodesk MapGuide: Network Request CGI APIs The GetLayerKml Operation: OPERATION = GetLayerKml & VERSION = & USERNAME = Anonymous & Password = & LAYERDEFINITION = Library://MyLayer.LayerDefinition & DPI = (defaults to 96) & FORMAT = [KML, KMZ or XML] & BBOX = & WIDTH = & HEIGHT = Returns a KML document containing a element corresponding to each scale range supported by the layer that is currently visible. elements are used to instruct Google Earth only to request data via these links when the current scale falls within the scale range and when the current map extent intersects the extent of the data. Returns a KML document containing a element corresponding to each scale range supported by the layer that is currently visible. elements are used to instruct Google Earth only to request data via these links when the current scale falls within the scale range and when the current map extent intersects the extent of the data.

13 13© 2006 Autodesk MapGuide: Network Request CGI APIs The GetFeaturesKml Operation: OPERATION = GetLayerKml & VERSION = & USERNAME = Anonymous & Password = & LAYERDEFINITION = Library://MyLayer.LayerDefinition & DPI = (defaults to 96) & FORMAT = [KML, KMZ or XML] & BBOX = & WIDTH = & HEIGHT = GetFeaturesKml returns the actual content to be rendered on the map. For feature layers, a KML document is returned that contains the features represented in vector format, plus style information such as the color, line width etc. For raster layers, the raster image is returned in PNG format.

14 14© 2006 Autodesk Supporting Extrusion Extrusion can be enabled for a LayerDefinition by specifiying an element within elements. 0 HEIGHT_AGL RelativeToGround Meters RelativeToGround Or Absolute One of: Millimeters, Centimeters, Meters, Kilometers, Inches, Feet, Yards, Miles, or Points

15 15© 2006 Autodesk Sample Code for the Do It Yourselfer Sample code for dynamically generating KML using the API is available for download from: The sample code includes a.Sample data set b.PHP sample code It is straight forward to modify the sample code to use your own datasets.

16 16© 2006 Autodesk Q & A


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