Description of the four advantages of Python urce in practical application

Python urce is now widely used by many people. Why is Python urce used more and more? The following articles describe the advantages of Python urce related operations. The following is a detailed introduction of the article. I hope you will gain some benefits.

Advantages

1. Free, suitable for individuals and small companies

2. Powerful development tools make it easier to find bugs

3. cross-platform, windows and linux

4. Pull the wind!

1. OGR vector Library: Simple vector data read/write, is part of GDAL

2. GDAL geospatial data abstraction database:

A) Read and Write Raster Data

B) ArcGIS is also developed based on GDAL.

C) C ++ library, but can be called using python

Python urce modules

1. Numeric: High-Speed array processing, especially important for raster data

2. NumPy: the next generation of Numeric

3. More powerful gis database import and export:

 
 

  
  
import ogr 
 
 

Or:

 
 

  
  
from osgeo import ogr 
 
 

The omnipotent method is:

 
 

  
  
try:  
  
  
from osgeo import ogr  
  
  
except:  
  
  
import ogr   
 
 

To read data of a certain type, you must first load the data driver, that is, initialize an object to let Python urce "know" A data structure.

 
 

  
  
import ogr  
  
  
driver = ogr.GetDriverByName(‘ESRI Shapefile’)  
  
  
 
 
 

The data-driven driver's open () method returns more than one data source object, which is an introduction to Python urce.