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 ArcPy and ArcGIS: Geospatial Analysis with Python
  • Table Of Contents Toc
  • Feedback & Rating feedback
ArcPy and ArcGIS: Geospatial Analysis with Python

ArcPy and ArcGIS: Geospatial Analysis with Python

By : Silas Toms
3.9 (11)
close
close
ArcPy and ArcGIS: Geospatial Analysis with Python

ArcPy and ArcGIS: Geospatial Analysis with Python

3.9 (11)
By: Silas Toms

Overview of this book

If you are a GIS student or professional who needs an understanding of how to use ArcPy to reduce repetitive tasks and perform analysis faster, this book is for you. It is also a valuable book for Python programmers who want to understand how to automate geospatial analyses.
Table of Contents (14 chapters)
close
close
13
Index

Inserting a polyline geometry

To create and insert a polyline-type shape field from a series of points, it's best to use the SHAPE@ keyword. We will also further explore the ArcPy Geometry types, which will be discussed in the next chapter. When working with the SHAPE@ keyword, we have to work with data in ESRI's spatial binary formats, and the data must be written back to the field in the same format using the ArcPy Geometry types.

To create a polyline, there is one requirement, at least two valid points made of two coordinate pairs. When working with the SHAPE@ keyword, there is a methodology to converting the coordinate pairs into an ArcPy Point and then adding it to an ArcPy Array, which is then converted into an ArcPy Polyline to be written back to the shape field:

listOfPoints = [(6002672.58675, 2092447.04362),
               (6003672.58675, 2093447.04362),
               (6004672.58675, 2094447.04362)
               ]
line = 'New Bus Line'
lineID = 12345
busLine...

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

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