Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Book Overview & Buying Geospatial Development By Example with Python
  • Table Of Contents Toc
Geospatial Development By Example with Python

Geospatial Development By Example with Python

By : Pablo Carreira
5 (4)
close
close
Geospatial Development By Example with Python

Geospatial Development By Example with Python

5 (4)
By: Pablo Carreira

Overview of this book

From Python programming good practices to the advanced use of analysis packages, this book teaches you how to write applications that will perform complex geoprocessing tasks that can be replicated and reused. Much more than simple scripts, you will write functions to import data, create Python classes that represent your features, and learn how to combine and filter them. With pluggable mechanisms, you will learn how to visualize data and the results of analysis in beautiful maps that can be batch-generated and embedded into documents or web pages. Finally, you will learn how to consume and process an enormous amount of data very efficiently by using advanced tools and modern computers’ parallel processing capabilities.
Table of Contents (12 chapters)
close
close
11
Index

Chapter 3. Combining Multiple Data Sources

Geographic data tends to be heterogeneous. Just to cite a few factors that contribute to this heterogeneity, it may come from different sources, have been produced at different times, or even have different languages. Given this fact, writing programs that can combine multiple sources of data is a fundamental topic in geoprocessing.

Data sources may come in different formats, such as shapefiles, text files, Google KML files, GPX files from GPS, and so on. They may also vary in their contents; for example, they may have different types of geometries, coordinate systems, and attributes.

In this chapter, we will enhance our application by adding the capability to combine multiple sources of data from both different sites and different file formats. In order to achieve this, we will write code capable of identifying the type of data, and depending on this, we will make transformations to obtain a homogeneous set of data.

By extending OGR capabilities...

Visually different images
CONTINUE READING
83
Tech Concepts
36
Programming languages
73
Tech Tools
Icon Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.
Icon Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.
Icon 50+ new titles added per month and exclusive early access to books as they are being written.
Geospatial Development By Example with Python
notes
bookmark Notes and Bookmarks search Search in title playlist Add to playlist font-size Font size

Change the font size

margin-width Margin width

Change margin width

day-mode Day/Sepia/Night Modes

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Confirmation

Modal Close icon
claim successful

Buy this book with your credits?

Modal Close icon
Are you sure you want to buy this book with one of your credits?
Close
YES, BUY

Submit Your Feedback

Modal Close icon
Modal Close icon
Modal Close icon