Название: Python For ArcGIS Автор: Laura G. Tateosian
Издательство: Springer
Год: 2016
Страниц: 544
Язык: английский
Формат: pdf (true), epub
Размер: 26.3 MB
This book introduces Python scripting for geographic information science (GIS) workflow optimization using ArcGIS. It builds essential programming skills for automating GIS analysis. Over 200 sample Python scripts and 175 classroom-tested exercises reinforce the learning objectives.
Python is easy to pick up. Python is a nice ‘starter’ programming language: easy to interpret with a clean visual layout. Python uses English keywords or indentation frequently where other languages use punctuation. Some languages require a lot of set-up code before even creating a program that says ‘Hello.’ With Python, the code you need to print Hello is print 'Hello'.
Python is object-oriented. The idea of object-oriented programming (OOP) was a paradigm shift from functional programming approach used before the 1990s. In functional programming, coding is like writing a collection of mathematical functions. By contrast, object-oriented coding is organized around objects which have properties and functions that do things to that object. OOP languages share common conventions, making it easier for those who have some OOP experience in other languages. There are also advantages to programmers at any level such as context menus which provide cues for completing a line of code.
Geographic data analysis involves processing multiple data samples. The analysis may need to be repeated on multiple fields, files, and directories, repeated monthly or even daily, and it may need to be performed by multiple users. Computer programming can be used to automate these repetitive tasks. Scripting can increase productivity and facilitate sharing. Some scriptable tasks involve common data management activities, such as, reformatting data, copying files for backups, and searching database content. Scripts can also harness the tool sets provided by Geographic Information Systems (GIS) for processing geospatial data, i.e., geoprocessing. This book focuses on the Python scripting language and geoprocessing with ArcGIS software.
Readers will learn to: • Write and run Python in the ArcGIS Python Window, the PythonWin IDE, and the PyScripter IDE • Work with Python syntax and data types • Call ArcToolbox tools, batch process GIS datasets, and manipulate map documents using the arcpy package • Read and modify proprietary and ASCII text GIS data • Parse HTML web pages and KML datasets • Create Web pages and fetch GIS data from Web sources. • Build user-interfaces with the native Python file dialog toolkit or the ArcGIS Script tools and PyToolboxes Python for ArcGIS is designed as a primary textbook for advanced-level students in GIS. Researchers, government specialists and professionals working in GIS will also find this book useful as a reference.
Скачать Python For ArcGIS