Visible Some Layers by Python

Question

I am newbie. I want to learn step by step.

Please advice me.

In my Data Frame  (Current mxd) I have some layers : A, B, C, D and Group  Layer E, F, G, H

How to make python scrip to ArcGiS 10.4:

1. Make visible Layer A and B and invisible Layer B and C

2. Make visible Group Layer E and F and invisible Group Layer G adn H

Thanks

Zibros

ZakirmanIbros · Answer

Ok,

I got the value (the python script I have written in the record of driven_page.shp)

So how to connect to the current data driven page extent

Let say

If data driven page  the Title = Landcover, and then print the row record of pyScript field, and how to run automatically the script

Sorry Papadopoulos, I am a newbie and and want to learn but confuse

PanagiotisPapadopoulos54 · Answer

you have to access the records and read the data from the desired fields. This can be happened using arcpy and  searchCursor

see this sample from the help ArcGIS Desktop

import arcpy  fc = "D:/st_johns/roads.shp"  
# Create a search cursor  
# 
rows = arcpy.SearchCursor(fc)   
# Create a list of string fields 
fields = arcpy.ListFields(fc, "", "String")

for row in rows:     
   for field in fields:         
      if field.type != "Geometry":             
         print "%s: Value = %s" % (field.name, row.getValue(field.name))

ZakirmanIbros · Answer

I can't understand yet data-access-using-cursors, related with my idea, Let say we have "Driven_pages.shp" with fields "Title" and "pyScript" and have 2 rectangle polygons overlaping. And we have two layers Landcover and Geology Driven_Pages.shp Row 1st The attribute of Title = Landcover The attribute of pyScript =

names = [Geology] 
mxd = arcpy.mapping.MapDocument("current")
df = arcpy.mapping.ListDataFrames(, mxd, "Layers")[0]
layers = arcpy.mapping.ListLayers(mxd, "*", df)
for layer in layers:  
   if layer.name in names:    
      layer.visible = False 
arcpy.RefreshTOC()
arcpy.RefreshActiveView()


Row 2nd

The attribute of Title = Geology 

The attribute of pyScript = 

names = [Landcover] 
mxd = arcpy.mapping.MapDocument("current")
df = arcpy.mapping.ListDataFrames(, mxd, "Layers")[0]
layers = arcpy.mapping.ListLayers(mxd, "*", df)
for layer in layers:  
   if layer.name in names:    
      layer.visible = False 
arcpy.RefreshTOC()
arcpy.RefreshActiveView()


When we navigate to row 1st, we want the Landcover layer visible = True and Geology layer visible = False

and and vice versa when we navigate to row 2nd Landcover layer visible = False and Geology layer visible = True



Could you give me a simple way to do that.



Thanks