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Mastering PostGIS

You're reading from Mastering PostGIS Modern ways to create, analyze, and implement spatial data

Product type Paperback

Published in May 2017

Publisher Packt

ISBN-13 9781784391645

Length 328 pages

Edition 1st Edition

Languages

SQL

Tools

PostGIS

Concepts

Geospatial Analysis

Authors (4):

Dominik Mikiewicz

Michal Mackiewicz

Tomasz Nycz

George Silva

View More author details

Table of Contents (10) Chapters

Preface

1. Importing Spatial Data FREE CHAPTER

2. Spatial Data Analysis

3. Data Processing - Vector Ops

4. Data Processing - Raster Ops

5. Exporting Spatial Data

6. ETL Using Node.js

7. PostGIS – Creating Simple WebGIS Applications

8. PostGIS Topology

9. pgRouting

Metadata

Last but not least, let's try to get out some metadata for our raster coverages. All the information required for it is stored in the raster_columns catalog as mentioned before. But PostGIS offers a variety of functions for metadata return.

For example, consider ST_ScaleX:

SELECT ST_ScaleX(st_slope) FROM raster_ops.slope; 
 rid | st_scalex 
-----+-------------- 
   1 |            0.0002777777778

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Authors (4)

Nycz

Nycz

Tomasz Nycz is a geographer and cartographer. He initiated the implementation of GIS in the State Fire Service units in Poland. He works with recognized GIS companies in the emergency management industry. In practice, he uses QGIS and PostGIS. He has been an OpenStreetMap contributor for years. He also develops his scientific interests in the use of new technologies in geomorphology and remote sensing. He is also an avid drone pilot and mountain explorer.

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Michal Mackiewicz

Michal Mackiewicz

Michal Mackiewicz has been working as a software engineer at GIS Support for five years. His main job is to orchestrate various open source geospatial components and creating application-specific GIS systems. PostgreSQL and PostGIS are among his favorite tools, and are used in almost every project. Apart from developing, he also runs PostGIS training courses. When not at work, he volunteers for OpenStreetMap and a local railway preservation society.

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Mikiewicz

Mikiewicz

Dominik Mikiewicz is a senior GIS consultant and the owner of one-person software shop Cartomatic. When not coding, he spends time with wife and kids, trying to make the little ones enjoy mountain trekking. He is also a long-distance cycling and running enthusiast.

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George Silva

George Silva

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