دانلود کتاب ArcPy and ArcGIS, geospatial analysis with python: use the ArcPy module to automate the analysis and mapping of geospatial data in ArcGIS

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Cover
Copyright
Credits
About the Author
About the Reviewers
www.PacktPub.com
Table of Contents
Preface
Chapter 1: Introduction to Python for ArcGIS
Overview of Python
Python as a programming language
Interpreted language
Standard (built-in) library
The glue language
Wrapper modules
The basics of Python
Import statements
Variables
For loops
If/Elif/Else statements
While statements
Comments
Data types
Strings
Integers
Floats
Lists
Tuples
Dictionaries
Iterable data types
Other important concepts
Indentation
Functions
Keywords
Namespaces
Zero-based indexing. Important Python Modules for GIS AnalysisThe ArcPy module
The Operating System (OS) module
The Python System (SYS) module
The XLRD and XLWT modules
Commonly used built-in functions
Commonly used standard library modules
Summary
Chapter 2: Configuring the Python Environment
What is a Python script?
How Python executes a script
What is the Python interpreter?
Where is the Python interpreter located?
Which Python interpreter should be used?
How does the computer know where the interpreter is?
Make Python scripts executable when clicked on
Integrated Development Environments
IDLE. PythonWinAptana Studio 3
IDE summary
Python folder structure
Where modules reside
Using Python's sys module to add a module
The sys.path.append() method
Summary
Chapter 3: Creating the First Python Script
Prerequisites
ModelBuilder
Creating a model and exporting to Python
Modeling the Select and Buffer tools
Adding the Intersect tool
Tallying the analysis results
Exporting the model and adjusting the script
The automatically generated script
File paths in Python
Continuing the script analysis: the arcPy tools
The intersect tool and string manipulation. The string manipulation method 1-string additionThe string manipulation method 2-string formatting #1
The string manipulation method 3-string formatting#2
Adjusting the Script
Adding the CSV Module to the script
Accessing the data: Using a cursor
The final script
Summary
Chapter 4: Complex ArcPy Scripts and Generalizing Functions
Python functions-Avoid repeating code
Technical definition of functions
A first function
Functions with parameters
Using functions to replace repetitive code
More generalization of the functions
Summary. Chapter 5: ArcPy Cursors: Search, Insert and UpdateThe data access module
Attribute field interactions
Update cursors
Updating the shape field
Adjusting a point location
Deleting a row using an Update Cursor
Using an Insert Cursor
Inserting a polyline geometry
Inserting a polygon geometry
Summary
Chapter 6: Working with ArcPy Geometry Objects
ArcPy geometry object classes
ArcPy Point objects
ArcPy Array objects
ArcPy Polyline objects
ArcPy Polygon objects
Polygon object buffers
Other Polygon object methods
ArcPy geometry objects
ArcPy PointGeometry objects
Summary.