Mayor Vincent C. Gray

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About OCTO

Data

Maps & Apps

Agency Support

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Office of the Chief Technology Officer


Office Hours
Monday through Friday, 8:30 am - 5:30 pm

How to Reach Us
200 I Street, SE
5th Floor
Washington, DC 20003
octo@dc.gov

Phone: (202) 727-2277
Fax: (202) 727-6857
TTY: 711

FOIA Information
Agency Performance

Website: http://octo.dc.gov

DC Digital Inclusion 


Rob Mancini
Chief Technology Officer

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Learn How to Use GIS Web Services


Learn how to consume GIS online web services:

Reasons to Use Web Services

Reasons to Use Web Services

Web services are attractive to many developers and their customers for a number of reasons including cost savings and connecting to the most up-to-date datasets.

 
Use the MAR Web Data Service in Client Script

Use the MAR Web Data Service in Client Script

Use the following code to include the Master Address Repository (MAR) Web Data Service in a client script.

 
Use the MAR Web Data Service in .NET

Use the MAR Web Data Service in .NET

Follow the instructions to add the Master Address Repository (MAR) Web Data Service as a component to a .NET application.

 
Use the ArcGIS JavaScript Extension for Google Maps API

Use the ArcGIS JavaScript Extension for Google Maps API

Learn how to use the ArcGIS JavaScript Extension for the Google Maps API to use ArcGIS maps and tasks in the framework of Google Maps.

 
Add a Cached Basemap Service to Google Maps

Add a Cached Basemap Service to Google Maps

Learn how to create a basemap with Google Maps and then add a cached basemap to Google Maps as a Map-Type Button.

 
Add a ArcGIS Server Dynamic Map Service to Google Maps

Add a ArcGIS Server Dynamic Map Service to Google Maps

Learn how to create a basemap with Google Maps and then add an ArcGIS Server Map to Google Maps.

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