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Programming ArcGIS with Python Cookbook - Second Edition电子书

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作       者:Eric Pimpler

出  版  社:Packt Publishing

出版时间:2015-07-28

字       数:213.3万

所属分类: 进口书 > 外文原版书 > 电脑/网络

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Programming ArcGIS with Python Cookbook, Second Edition, is written for GIS professionals who wish to revolutionize their ArcGIS workflow with Python. Whether you are new to ArcGIS or a seasoned professional, you almost certainly spend time each day performing various geoprocessing tasks. This book will teach you how to use the Python programming language to automate these geoprocessing tasks and make you a more efficient and effective GIS professional.
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Programming ArcGIS with Python Cookbook Second Edition

Table of Contents

Programming ArcGIS with Python Cookbook Second Edition

Credits

About the Author

About the Reviewers

www.PacktPub.com

Support files, eBooks, discount offers, and more

Why Subscribe?

Free Access for Packt account holders

Preface

What this book covers

What you need for this book

Who this book is for

Sections

Getting ready

How to do it…

How it works…

There's more…

See also

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Fundamentals of the Python Language for ArcGIS

Using IDLE for Python script development

The Python shell window

The Python script window

Editing existing Python scripts

Executing scripts from IDLE

Using the ArcGIS Python window

The ArcGIS Python window

Displaying the ArcGIS Python window

Python language fundamentals

Commenting code

Importing modules

Variables

Built-in data types

Strings

String manipulation

Numbers

Lists

Tuples

Dictionaries

Classes and objects

Statements

Decision support statements

Looping statements

Try statements

With statements

Statement indentation

File I/O

Summary

2. Managing Map Documents and Layers

Introduction

Referencing the current map document

Getting ready

How to do it…

How it works…

Referencing map documents on a disk

Getting ready

How to do it…

How it works…

Getting a list of layers in a map document

Getting ready

How to do it…

How it works…

There's more…

Restricting the list of layers

Getting ready

How to do it…

How it works…

Zooming in to selected features

Getting ready

How to do it…

How it works…

Changing the map extent

Getting ready

How to do it...

How it works...

Adding layers to a map document

Getting ready

How to do it…

How it works…

There's more…

Inserting layers into a map document

Getting ready

How to do it…

How it works…

There's more…

Updating layer symbology

Getting ready

How to do it…

How it works…

There's more...

Updating layer properties

Getting ready

How to do it…

Working with time-enabled layers in a data frame

Getting ready

How to do it...

How it works…

3. Finding and Fixing Broken Data Links

Introduction

Finding broken data sources in your map document and layer files

Getting ready

How to do it…

How it works…

There's more…

Fixing broken data sources with MapDocument.findAndReplaceWorkspacePaths()

Getting ready

How to do it…

How it works…

There's more…

Fixing broken data sources with MapDocument.replaceWorkspaces()

Getting ready

How to do it…

How it works…

Fixing individual layer and table objects with replaceDataSource()

Getting ready

How to do it…

How it works…

There's more…

Finding broken data sources in all map documents in a folder

Getting ready

How to do it...

How it works...

4. Automating Map Production and Printing

Introduction

Creating a list of layout elements

Getting ready

How to do it…

How it works…

Assigning a unique name to layout elements

Getting ready

How to do it…

How it works…

There's more…

Restricting the layout elements returned by ListLayoutElements()

Getting ready

How to do it…

How it works...

Updating the properties of layout elements

Getting ready

How to do it…

How it works...

Getting a list of available printers

Getting ready

How to do it…

How it works...

Printing maps with PrintMap()

Getting ready

How to do it…

How it works...

Exporting a map to a PDF file

Getting ready

How to do it…

How it works…

Exporting a map to an image file

Getting ready

How to do it…

How it works…

Exporting a report

Getting ready

How to do it…

How it works…

Building a map book with Data Driven Pages and ArcPy mapping

Getting ready

How to do it…

How it works…

Publishing a map document to an ArcGIS Server service

Getting ready

How to do it…

How it works…

5. Executing Geoprocessing Tools from Scripts

Introduction

Finding geoprocessing tools

Getting ready

How to do it…

How it works…

Retrieving a toolbox alias

Getting ready

How to do it…

How it works…

Executing geoprocessing tools from a script

Getting ready

How to do it…

How it works…

There's more...

Using the output of a tool as an input to another tool

Getting ready

How to do it...

How it works...

6. Creating Custom Geoprocessing Tools

Introduction

Creating a custom geoprocessing tool

Getting ready

How to do it…

How it works…

There's more...

Creating a Python toolbox

Getting ready

How to do it…

How it works…

7. Querying and Selecting Data

Introduction

Constructing a proper attribute query syntax

Getting ready

How to do it…

How it works…

Creating feature layers and table views

Getting ready

How to do it…

How it works...

There's more...

Selecting features and rows with the Select Layer by Attribute tool

Getting ready

How to do it…

How it works…

Selecting features with the Select by Location tool

Getting ready

How to do it…

How it works…

Combining a spatial and attribute query with the Select by Location tool

Getting ready

How to do it...

How it works...

8. Using the ArcPy Data Access Module with Feature Classes and Tables

Introduction

Retrieving features from a feature class with SearchCursor

Getting ready

How to do it…

How it works…

Filtering records with a where clause

Getting ready

How to do it…

How it works…

Improving cursor performance with geometry tokens

Getting ready

How to do it…

How it works…

Inserting rows with InsertCursor

Getting ready

How to do it…

How it works…

Updating rows with UpdateCursor

Getting ready

How to do it…

How it works…

Deleting rows with UpdateCursor

Getting ready

How to do it…

How it works…

Inserting and updating rows inside an edit session

Getting ready

How to do it…

How it works…

Reading geometry from a feature class

Getting ready

How to do it…

How it works…

Using Walk() to navigate directories

Getting ready

How to do it…

How it works…

9. Listing and Describing GIS Data

Introduction

Working with the ArcPy list functions

Getting ready

How to do it…

How it works…

There's more…

Getting a list of fields in a feature class or table

Getting ready

How to do it…

How it works…

Using the Describe() function to return descriptive information about a feature class

Getting ready

How to do it…

How it works…

Using the Describe() function to return descriptive information about a raster image

Getting ready

How to do it…

How it works…

10. Customizing the ArcGIS Interface with Add-ins

Introduction

Downloading and installing the Python Add-in Wizard

Getting ready

How to do it…

How it works…

Creating a button add-in and using the Python add-ins module

Getting ready

How to do it...

How it works...

Installing and testing an add-in

Getting ready

How to do it…

How it works…

Creating a tool add-in

Getting ready

How to do it...

How it works...

There's more...

11. Error Handling and Troubleshooting

Introduction

Exploring the default Python error message

Getting ready

How to do it…

How it works…

Adding Python exception handling structures (try/except/else)

Getting ready

How to do it…

How it works…

There's more…

Retrieving tool messages with GetMessages()

Getting ready

How to do it…

How it works…

Filtering tool messages by the level of severity

Getting ready

How to do it…

How it works…

Testing for and responding to specific error messages

Getting ready

How to do it…

How it works…

12. Using Python for Advanced ArcGIS

Introduction

Getting started with the ArcGIS REST API

Getting ready

How to do it…

How it works…

Making HTTP requests and parsing the response with Python

Getting ready

How to do it…

How it works…

Getting layer information with the ArcGIS REST API and Python

Getting ready

How to do it…

How it works…

Exporting a map with the ArcGIS REST API and Python

Getting ready

How to do it…

How it works…

Querying a map service with the ArcGIS REST API and Python

Getting ready

How to do it…

How it works…

Geocoding with the Esri World Geocoding Service

Getting ready

How to do it…

How it works…

Using FieldMap and FieldMappings

Getting ready

How to do it…

How it works…

Using a ValueTable to provide multivalue input to a tool

Getting ready

How to do it…

How it works…

13. Using Python with ArcGIS Pro

Introduction

Using the new Python window in ArcGIS Pro

Coding differences between ArcGIS for Desktop and ArcGIS Pro

Installing Python for ArcGIS Pro

Converting ArcGIS for Desktop Python code to ArcGIS Pro

A. Automating Python Scripts

Introduction

Running Python scripts from the command line

Getting ready

How to do it…

How it works…

Using sys.argv[ ] to capture command-line input

Getting ready

How to do it...

How it works...

Adding Python scripts to batch files

Getting ready

How to do it...

How it works...

There's more...

Scheduling batch files to run at prescribed times

Getting ready

How to do it...

How it works...

B. Five Python Recipes Every GIS Programmer Should Know

Introduction

Reading data from a delimited text file

Getting ready

How to do it…

How it works…

There's more...

Sending e-mails

Getting ready

How to do it…

How it works…

Retrieving files from an FTP server

Getting ready

How to do it…

How it works…

There's more…

Creating ZIP files

Getting ready

How to do it…

How it works…

There's more…

Reading XML files

Getting ready

How to do it…

How it works…

There's more…

Index

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