Sign In Start Free Trial
Account

Add to playlist

Create a Playlist

Modal Close icon
You need to login to use this feature.
  • Python Geospatial Analysis Cookbook
  • Toc
  • feedback
Python Geospatial Analysis Cookbook

Python Geospatial Analysis Cookbook

By : Diener
4.4 (5)
close
Python Geospatial Analysis Cookbook

Python Geospatial Analysis Cookbook

4.4 (5)
By: Diener

Overview of this book

Geospatial development links your data to places on the Earth’s surface. Its analysis is used in almost every industry to answer location type questions. Combined with the power of the Python programming language, which is becoming the de facto spatial scripting choice for developers and analysts worldwide, this technology will help you to solve real-world spatial problems. This book begins by tackling the installation of the necessary software dependencies and libraries needed to perform spatial analysis with Python. From there, the next logical step is to prepare our data for analysis; we will do this by building up our tool box to deal with data preparation, transformations, and projections. Now that our data is ready for analysis, we will tackle the most common analysis methods for vector and raster data. To check or validate our results, we will explore how to use topology checks to ensure top-quality results. This is followed with network routing analysis focused on constructing indoor routes within buildings, over different levels. Finally, we put several recipes together in a GeoDjango web application that demonstrates a working indoor routing spatial analysis application. The round trip will provide you all the pieces you need to accomplish your own spatial analysis application to suit your requirements.
Table of Contents (15 chapters)
close
12
A. Other Geospatial Python Libraries
13
B. Mapping Icon Libraries
14
Index

Creating an indoor route-type service


Building a route based on a specified type value, such as a Barrier Free Route or Standard Pedestrian Route value, is great for your users. How to build different route types is based on the available data connected to our indoor graph of ways. This example will allow a user to select the barrier-free route and our service will generate a path, avoiding obstacles such as stairs:

Getting ready

We need to access some more data on our network to allow routing types. The type of route is based on a network line type, which is stored as an attribute on each LineString. To classify our route types, we have the following lookup table schema:

Value

Route type

0

Indoor route

1

Outdoor route

2

Elevator

3

Stairs

Therefore, we want to avoid any stairs segments, which technically means avoiding type_id = 3.

Note

Optionally, you could create a lookup table to store all the possible types and their equivalent weights. These values could then be included...

Unlock full access

Continue reading for free

A Packt free trial gives you instant online access to our library of over 7000 practical eBooks and videos, constantly updated with the latest in tech
bookmark search playlist font-size

Change the font size

margin-width

Change margin width

day-mode

Change background colour

Close icon Search
Country selected

Close icon Your notes and bookmarks

Delete Bookmark

Modal Close icon
Are you sure you want to delete it?
Cancel
Yes, Delete