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Starting to work with OGC Web Services

An introduction to work with OGC WMS/WFS from Geographic Information System applications

An introduction for starting to work with public cartography resources over the Internet with GIS applications. This book explains some basics about OGC web services and shows how to consume satellite imagery and vectorial cartography on Quantum GIS Desktop free open source application.

Carlos Fernando Ruiz Chávez

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About the Book

This book aims to help to understand the web services technology from the Open Geospatial Consortium (OGC) like the Web Map Service (WMS) and the Web Feature Service (WFS), and its use with Geographic Information Systems (GIS) applications. It does not pretend to be extensively technical for being appropriate for any reader.

Most of the text, instructions and images shown in the following chapters are based on using Quantum GIS Desktop, one of the best free open source Geographic Information System applications that can be downloaded directly from its web site. However, another free or commercial GIS application can be used to connect and retrieve cartography with the basics here exposed, always that it supports this technology.

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About the Author

Carlos Fernando Ruiz Chávez

Information technology applied to geospatial data specialist and data scientist. Has a Computational Engineering degree and a Master of Science in Information Technology degree from the Universidad de Guadalajara.

He worked as information technology director of the Land Information Institute of Jalisco, where he developed the OnLine Land Information System for publishing and distributing more than 2,600 layers through OGC WMS/WFS services. Also worked as promotor of open data and free open source software in subnational governments.

Currently works as consultant for some government agencies in Mexico and develops independant studies and geospatial analyses which focus in social urban problems as public health, environmental, security and mobility, among others.

Table of Contents

Preface

Introduction

Prerequisites
Web services
OGC web services
Additional resources

Working with a Web Map Service (WMS)

Retrieving a WMS layer from a web browser
Retrieving a WMS layer from Quantum GIS Desktop
Querying a WMS layer from Quantum GIS Desktop
Exercises
Additional resources

Working with a Web Feature Service (WFS)

Retrieving a WFS layer from a web browser
Retrieving a WFS layer from Quantum GIS Desktop
Filtering a WFS layer from Quantum GIS Desktop
Exercises
Additional resources

Public resources

Public resources from Canada
Public resources from United States

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