Rishabh Jain rishabhjain30

## pip-install-gdal.md

      
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                Installing GDAL in a Python virtual environment
              
          
    Installing GDAL in a Python virtual environment

Get gdal development libraries:
$ sudo apt-add-repository ppa:ubuntugis/ubuntugis-unstable
$ sudo apt-get update
$ sudo apt-get install libgdal-dev

Create and activate a virtual environment:

  
## mercator_scale.py
"""
Web Mercator Scale and Resolution Calculations
Python implementation of the formulas at http://msdn.microsoft.com/en-us/library/bb259689.aspx
"""
import math

def meters_per_pixel(zoom, lat):
    """
    ground resolution = cos(latitude * pi/180) * earth circumference / map width
    """
	"""
	Web Mercator Scale and Resolution Calculations
	Python implementation of the formulas at http://msdn.microsoft.com/en-us/library/bb259689.aspx
	"""
	import math

	def meters_per_pixel(zoom, lat):
	"""
	ground resolution = cos(latitude * pi/180) * earth circumference / map width
	"""