{"id":92,"date":"2021-09-26T17:56:14","date_gmt":"2021-09-26T22:56:14","guid":{"rendered":"https:\/\/sites.owu.edu\/geog-199\/?p=92"},"modified":"2021-09-26T17:56:14","modified_gmt":"2021-09-26T22:56:14","slug":"wade-chapter-5-geoprocessing-using-python","status":"publish","type":"post","link":"https:\/\/sites.owu.edu\/geog-293\/2021\/09\/26\/wade-chapter-5-geoprocessing-using-python\/","title":{"rendered":"Wade: Chapter 5: Geoprocessing Using Python"},"content":{"rendered":"

Terms<\/b><\/p>\n

Class: <\/b>like an outline for creating a new object<\/span><\/p>\n

Environment: <\/b>a tool that helps to keep dependencies required by different projects separate<\/span><\/p>\n

Factory Code:<\/b>Factory method is <\/span>a creational design pattern which solves the problem of creating product objects<\/span> without specifying their concrete classes. Factory Method defines a method, which should be used for creating objects instead of direct constructor call ( new operator).<\/span><\/p>\n

Function: <\/b>a block of code that only runs when it is called<\/span>.<\/span><\/p>\n

Hard-Coded: <\/b>A part of a program that has been declared as unchanging<\/span><\/p>\n

Instance: <\/b>An individual object of a certain class<\/span>.<\/span><\/p>\n

Method:<\/b> a function that \u201cbelongs to\u201d an object<\/span>.<\/span><\/p>\n

Namespace: <\/b>a system that has a unique name for each and every object in Python<\/span>.\u00a0<\/span><\/p>\n

Object: <\/b>Everything is in Python treated as an object, including variable, function, list, tuple, dictionary, set, etc. Every object belongs to its class.<\/span><\/p>\n

Package:<\/b> A package is basically a directory with Python files and a file with the <\/span>name __init__ .<\/span> py<\/span>. This means that every directory inside of the Python path, which contains a file named __init__ . py, will be treated as a package by Python.<\/span><\/p>\n

Property: <\/b>t<\/span>he main purpose of Property() function is <\/span>to create property of a class<\/span>.<\/span><\/p>\n

Well-known ID (WKID): <\/b>a unique number assigned to a coordinate system<\/span>.<\/span><\/p>\n

Well-known text (WKT): <\/b>an Open Geospatial Consortium (OGC) standard that <\/span>is used to represent spatial data in a textual format<\/span>.<\/span><\/p>\n

Workspace: <\/b>supports the embedding and running of Python scripts within a workflow<\/span>.<\/span><\/p>\n

 <\/p>\n

Review Questions<\/b><\/p>\n

 <\/p>\n