Project only required shapefiles in folder

Question

I have 8 shapefiles in a folder with shapefile 1 and 8 in the same projection and the others (shapefile 2-7) if different projections.

Is there a way to use python to use shapefile 1 as the projection template to project shapefiles 2-7 in a new folder but also to only copy shapefiles 1 and 8 in the output folder without reprojection them but also not using hard values to keep the script flexible?

I have been trying to use batch project, but am having trouble excluding shapefiles 1 and 8, or only including shapefiles 2-7. Should I be using the Describe.SpatialReference to filter out?

Answer 1

this is how I identified different projections. Keep in mind that depending on different datum you need the right transformation. You would need elif for each transformation.

for lyr in lyrlist:
    if lyr.visible == True:
        desc = arcpy.Describe(lyr)
        Ref = desc.spatialreference.name
        if "ETRS" in Ref:
            arcpy.Copy_management(...)
        elif "DHDN" in Ref:
            arcpy.Project_management(lyr,desc.path+os.sep+ +desc.basename+"proj.shp","PROJCS['MV32_ETRS_1989_UTM_Zone_32N',GEOGCS['GCS_ETRS_1989',DATUM['D_ETRS_1989',SPHEROID['GRS_1980',6378137.0,298.257222101]],PRIMEM['Greenwich',0.0],UNIT['Degree',0.0174532925199433]],PROJECTION['Transverse_Mercator'],PARAMETER['False_Easting',32500000.0],PARAMETER['False_Northing',0.0],PARAMETER['Central_Meridian',9.0],PARAMETER['Scale_Factor',0.9996],PARAMETER['Latitude_Of_Origin',0.0],UNIT['Meter',1.0]]","DHDN_To_ETRS_1989_8_NTv2")

Answer 2

Trying to project first;

import arcpy

arcpy.env.workspace = arcpy.GetParameterAsText(0)

fcList = arcpy.ListFeatureClasses()

try:    

inFolder = arcpy.ListFeatureClasses()  
template = arcpy.GetParameteAsText(1)  
outFolder = arcpy.GetParameterAsText(2)


desc = arcpy.Describe(template).spatialReference


arcpy.BatchProject_management(inFolder, outFolder, desc)  

except:  
arcpy.AddMessage (arcpy.GetMessages ())

for fc in fcList:    
print fc

Answer 3

I see your code this way :

import arcpy

arcpy.env.workspace = arcpy.GetParameterAsText(0)

fcList = arcpy.ListFeatureClasses()

inFolder = arcpy.ListFeatureClasses()  
template = arcpy.GetParameteAsText(1)  
outFolder = arcpy.GetParameterAsText(2)


srf= arcpy.Describe(template).spatialReference

for fc in fcList:    
 if arcpy.Describe(fc).spatialReference.name != srf.name:
  arcpy.Project_management (fc, outFolder + "\\" + fc, desc, {transform_method}, {in_coor_system})