[OSGeo Africa] Batch conversion from shp to kml

[Zibusiso Ncube]

Apologies for the late delivery🙈

here is something you can use for that conversion..whilst the full reply
with all the bells and whistles is still being moderated through the osgeo
40kb limit ....
i figured you might be in urgent need for this. its a solutiion that uses
two files the main.py which is attached and ogr2ogr.py ,download it from...

 https://svn.osgeo.org/gdal/trunk/gdal/swig/python/samples/ogr2ogr.py

main.py is what you run ( edit it and run it using IDLE which comes with
your python installation ... but whatever ide can do the job.I chose IDLE
for the simplicitity in this case.)

1- edit the file location (see filePathNamesList in script) for where you
shapefiles lie. I would just copy all of them into one folder. and point
the script to that folder


2- just make sure the ogr2ogr.py file is in the same folder as the main.py.
This is a python port of the GDAL cpp ogr2ogr.


3 - if you are using IDLE ...run the main.py


lastly if you do not have GDAL installed go to...

https://sandbox.idre.ucla.edu/sandbox/tutorials/installing-gdal-for-windows

read STEP 2 ....this guy explains so nicely...its a breeze

i have attached the main.py

Give me a shout through a personal email, if your are having issues.
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#*****************************************************************************
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#
#**************************************************************************

import sys
import os
from os.path import basename

import ogr2ogr
import os
import sys

from osgeo import ogr
#import KmlConvertor

def filePathNamesList(directoryPath, extension):
    """ List of all files of a specific extension within a specific directory
    
        path - directory in which the files are contained e.g C:\\dir\\subDir\\subSubDir\\subSubSubDir
        extension - file extension e.g. .txt
        
    """
    fileList=[]
    
    #===========================================================================
    # for f in os.listdir(directoryPath):
    #     if f.endswith(extension):
    #         fileList.append(directoryPath +"\\" +f)
    #         
    # return fileList
    #===========================================================================

    fileList = [os.path.join(root, name)
             for root, dirs, files in os.walk(directoryPath)
             for name in files
             if name.endswith((extension))]
    
    return fileList

def convertSHPToKML(inputPath,outputPath):
    """ OGR2OGR 
    
        I Did Not write This just adapted it. Make sure the ogr2ogr.py file
        is included with these python files
    
    """    
    ogr2ogr.main(['','-f','KML',outputPath,inputPath])
    
def progression(percent, bar = 20):
    sys.stdout.write("\r")
    progress = ""
##    for i in range(bar):
##        if i < int(bar * percent):
##            progress += "#"
##        else:
##            progress += " "
    sys.stdout.write("[ %s ] %.2f%%" % (progress, percent * 100))
    sys.stdout.write("\r")
    sys.stdout.flush()

def main():

    #pathList=None
    extension=".shp"
    
    #===========================================================================
    # Give it some time to do its work (I did not test it just wrote and assumed
    # it works ...just watch the memory and alert me if you think there are 
    # memory leaks. 
    # .... 
    #Zibusiso
    #===========================================================================
    
    pathList= filePathNamesList(r"C:\Users\NcubeZ\Desktop\TestShapefiles", extension)
    #print(pathList)
    count=0
    for path in pathList:
        
        #check if  shpToKml folder exists and create one if it does not exists
        shpToKMLfolder = os.path.dirname(path)+"\\shpToKML"
        if not os.path.exists(shpToKMLfolder):
            os.makedirs(shpToKMLfolder)
        
        #create new filepath
        outputPath=shpToKMLfolder+"\\"+ os.path.splitext(basename(path))[0]+".kml"
        convertSHPToKML(path,outputPath)
        outputPath=None
        
        count+=1
        
        percentagefilescompleted = (float(count)/len(pathList))
        
        progression(percentagefilescompleted)

   
if __name__ == "__main__":
    main()