PythonCERR_2014

E L I Z A B E T H M C D O W E L L

M E S A C O U N T Y G I S

PYTHON & THE CERR CHALLENGE PROCESS

COLORADO EMPLOYEE RESIDENCE REPORTS

• Local Government Severance Tax Fund

• Submitted by reporting parties (Marathon, Encana, etc…)

• A factor in allocating severance tax dollars to and within counties (Direct Distribution)

County Pool

• CERRs

• Mining & Well Permits

• Mineral Production

Sub County Pool

• CERRs

• Population

• Road Miles

DOLA Direct Distribution: Flowchart of Severance Tax Distributions

MESA COUNTY ALLOCATION

Direct Distribution Payment - 2014

$1,723,565.20

MESA COUNTY GIS

• Processes CERRs for municipalities

within Mesa County • City of Grand Junction

• City of Fruita

• Town of Palisade

• Town of De Beque

• Town of Collbran

• Include surrounding

Counties/Municipalities • Garfield County

• Town of Parachute

• Delta County

• Montrose County

• Grand County, UT

FOR 2013 REPORTING YEAR

• 237 CERRs (included addresses within Mesa County)

• 233 Companies

• 16,088 Total Employees

• 3,261 Employee Addresses within Mesa County

• 356 Not Challengeable

• 106 Invalid Addresses (Incl. PO Boxes, bad addresses)

• 879 Challenged Addresses

Jurisdiction Company Reported

Employees Post-Challenge

Employees Net Gain

City of Fruita 328 298 -30 City of Grand Junction 1769 1150 -619

Mesa County 994 1689 695 Town of Collbran 28 18 -10

Town of De Beque 56 45 -11

Town of Palisade 86 72 -14 Garfield County 4 0 -4

Town of Parachute 7 0 -7 TOTAL 3272 3272 0

+21%

APPLICATIONS USED

• Microsoft Excel

• Microsoft SQL Server Management Studio

• ESRI ArcMap 10.1

• PythonWin 2.7.2

WHY PYTHON?

• ESRI Marketing

• Online Python class

• Python based sessions at the ESRI Developer

Conference, March 2014

• Data Driven Pages enhanced with Python

CHALLENGE PROCESS OVERVIEW

1. Download / Prep CERRs

2. Geocode / Address Verification

3. Supporting Documentation

4. Submit Challenges on DOLA’s Website

SUPPORTING DOCUMENTATION

• In previous years supporting documentation was

created from Assessor’s Property Detail

• Individually created per challenge address

• For 2012 Reporting Year: >1000

• 2013 Reporting Year: 879 address challenges

http://emap.mesacounty.us/assessor_lookup/

DATA DRIVEN PAGE SETUP

• Input Layer

• Geocoded address = Page Name Field

• Use Page Definition

Query to only show the

active address on each page

• DDP Extent

• “Best Fit”

• 1500% Margin

Layout View

PYTHON SCRIPT COMPONENTS

• General Settings

• Map Document Variables

• Looping

• Map Layout / Dynamic Elements

• Export to PDF

Python script available on github: https://github.com/emcdowell/Python-CERR.git

GENERAL SETTINGS

• Import arcpy and os modules

• Allow script to overwrite outputs

arcpy.env.overwriteOutputs = True

• Script Parameters

• Used to select different input without having to change code

inputLayer = arcpy.GetParameterAsText(0)

• Set Directory Paths / Output PDF

MAP DOCUMENT VARIABLES

Set up map document variables mxd = arcpy.mapping.MapDocument(mxdpath)

ddp = mxd.dataDrivenPages

dataframes = arcpy.mapping.ListDataFrames(mxd, '')

actDataframe = arcpy.mapping.ListDataFrames(mxd, '')[0]

Define input table and temporary table variables inputTable = r'S:\IT\GIS\Liz\Python\CERR\Data\Python_CERR.gdb\MC_TAC_AgencyCodes'

tempTable = r'S:\IT\GIS\Liz\Python\CERR\Data\Python_CERR.gdb\tempTable'

Define field variables Link script to input layer

SCRIPT HAS MULTIPLE LOOPS

• Primary Loop:

• Loop through each page using page number for pgNum in range(1, ddp.pageCount + 1):

ddp.currentPageID = pgNum

• Secondary & Tertiary Loops:

• Script loops through scenarios within each page

• Search & Insert Cursors

• Layout element positioning

# Set variables to set data frame insets

reportedDistrict = ddp.pageRow.getValue(qMuni_County)

newDistrict = ddp.pageRow.getValue(qDistrict)

if reportedDistrict == 'City of Grand Junction':

lblGrandJunction.elementPositionX = 8.27

lblGrandJunction.elementPositionY = 2.63

lblFruita.elementPositionX = 10.0

lblCollbran.elementPositionX = 10.0

lblDebeque.elementPositionX = 10.0

lblPalisade.elementPositionX = 10.0

lblCounty.elementPositionX = 12.0

txtCounty.elementPositionX = 3.18

txtCounty.elementPositionY = 1.07

txtGrandJunction.elementPositionX = 10.0

txtFruita.elementPositionX = 10.0

txtCollbran.elementPositionX = 10.0

txtDebeque.elementPositionX = 10.0

txtPalisade.elementPositionX = 10.0

for frames in dataframes:

if frames.name == 'df_GJT':

frames.elementPositionX = 5.7

frames.elementPositionY = 0.5

elif frames.name == 'df_Address':



else:



elif reportedDistrict == ‘Mesa County’:

MAP LAYOUT ELEMENTS

• Each layout item MUST be uniquely named

• Size and Position Tab

• Element Name

• Create and do preliminary setup in ArcMap then

use Python to manipulate the element

SCALE BAR

# Set scale bar based on page extent

if actDataframe.scale < 4000:

scale1.elementPositionX = 0.33

scale1.elementPositionY = 2.98




elif 4001 <= actDataframe.scale <= 10000:






elif 10001 <= actDataframe.scale <= 20000:






elif actDataframe.scale > 20001:






• Create four scale bars in

ArcMap

• Set Division Value for each

• Determine placement on layout

• Use Python to change X,Y

location based on the scale of

the active data frame

Layout View

SEARCH & INSERT CURSORS

• Search Cursor

• Where input table field = page variable (TAC Code)

• Insert Cursor

• Populate temporary table with matching records

cursor = arcpy.da.SearchCursor(inputTable, ('TAC_Code', 'Year_', 'Agency_Name'), ''' "Year_" = 2013 ''')

insertcursor = arcpy.da.InsertCursor(tempTable, ('TAC_Code', 'Year_', 'Agency_Name'))

for row in cursor:

if row[0] == pgTAC:

insertcursor.insertRow(row)

del row

del insertcursor

del cursor

cursor = arcpy.da.SearchCursor(inputTable, ('TAC_Code', 'Year_', 'Agency_Name'), ''' "Year_" = 2013 ''')

insertcursor = arcpy.da.InsertCursor(tempTable, ('TAC_Code', 'Year_', 'Agency_Name'))

DYNAMIC TABLE

• List taxing authorities per challenge address • Verifies that a parcel is located inside or outside of municipal boundary

• Based on the number of rows in the table, script will adjust text size,

row height, grid line positioning

• ESRI Sample Code • DDPwithDynamicTablesAndGraphs_10.1_v1

#Set and clone cell text elements

cellTxt.fontSize = rowHeight / 0.0155 y = upperY - headerHeight rows = arcpy.SearchCursor("in_memory\sort1") for row in rows: x = upperX + 0.05 col1CellTxt = cellTxt.clone("_clone") col1CellTxt.text = row.getValue("Agency_Name") col1CellTxt.elementPositionX = x col1CellTxt.elementPositionY = y

col2CellTxt = cellTxt.clone("_clone") col2CellTxt.text = row.getValue("TAC_Code") col2CellTxt.elementPositionX = x + 2.3 col2CellTxt.elementPositionY = y y = y - rowHeight if col1CellTxt.elementWidth > 2: col1CellTxt.elementWidth = 2

EXPORT TO PDF

# Set Output PDF (Beginning of script)

pdfPath = outDir + r"\FinalMapBook.pdf"

if os.path.exists(pdfPath): # Check to see if file already exists, delete if it does

os.remove(pdfPath)

finalPdf = arcpy.mapping.PDFDocumentCreate(pdfPath)

…

# Name and export individual pages (Inside Loop through each page)

ddp.exportToPDF(pgLabel + ".pdf", "CURRENT")

finalPdf.appendPages(pgLabel + ".pdf")

…

# Commit Changes and delete variable references (Outside of loop)

finalPdf.saveAndClose()

del finalPdf

SAMPLE OUTPUT

THREE HOURS I WAS ABLE TO SPEND WORKING ON SOMETHING ELSE!

For batch size between 150 – 200 addresses

LINKS

• DDPwithDynamicTablesAndGraphs_10.1_v1

• Merge Excel Workbooks

• My full script

http://www.arcgis.com/home/item.html?id=3a525b986b774a3f9cbbd8daf2435852



http://msdn.microsoft.com/en-us/library/office/gg549168(v=office.14).aspx




https://github.com/emcdowell/Python-CERR.git




Questions?

Date post:	16-Jul-2015
Category:	Documents
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