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![Data Driven Pages -
Python Code
import fme, fmeobjects, time, arcpy
def FeatureProcessor(feature):
map = FME_MacroValues['MAP']
output_folder = FME_MacroValues['OUTPUT_FOLDER']
mxd = arcpy.mapping.MapDocument(map)
mxd.dataDrivenPages.refresh() # Previous to the python script a shape file is written with bounding boxes. This shape file is already added to the mxd
logger = fmeobjects.FMELogFile()
logger.logMessageString("Generating maps based on the difference between the databases:")
for pageNum in range(1, mxd.dataDrivenPages.pageCount + 1):
mxd.dataDrivenPages.currentPageID = pageNum
logger.logMessageString("MAP_"+str(pageNum)+" is now beeing generated.")
arcpy.mapping.ExportToPNG(mxd, output_folder + "MAP_" + str(pageNum) + ".png", resolution=200, color_mode="24-BIT_TRUE_COLOR")
time.sleep(2) # It is important to sleep the script, so that larger maps has time to load completely before the next image is generated
del mxd
pass](https://image.slidesharecdn.com/henrikthoren-databasecomparisonandarcmapdatadrivenpages-170601205129/85/Database-Comparison-and-ArcMap-Data-Driven-Pages-13-320.jpg)
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Database Comparison and ArcMap Data Driven Pages
The document describes a solution for dynamic hydrological and hydraulic simulations using Mike Urban integrated with ArcMap. It highlights the use of FME's database comparison tools to automate updates and create maps displaying attribute changes. Additionally, a Python script is provided for generating data-driven pages in ArcMap based on database differences.
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Database Comparison and ArcMap Data Driven Pages
- 1. Database Comparison and ArcMapData Driven Pages Henrik Thorén, Ramboll Water
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- 3. MIKE URBAN FOR DYNAMICHYDROLOGICAL AND HYDRAULIC SIMULATIONS WE USE
- 4. Place your screenshothere MIKE URBAN Developed by DHI in Denmark MIKE Urban is built on top of the ArcMap environment The model is saved in a Access database (.mdb)
- 5. PROBLEM • The modelscontinuous gets updated to mimic different scenarios • Automated way to document updates to MIKE Urban model
- 6. SOLUTION • Utilize thebuilt in database comparison tools in FME • Write statistics to Excel • Automatically create maps with over the areas that are updated (Data Driven Pages)
- 7. Place your screenshothere FME SOLUTION Original Attr. Updated Attr. Comparison Excel MDB Data Driven Pages Bounding Box Maps
- 8. PROBLEM “I not onlywant to compare the updates, I want to know the before and after value of the attributes”
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- 12. Place your screenshothere ArcMap template
- 13. Data Driven Pages- Python Code import fme, fmeobjects, time, arcpy def FeatureProcessor(feature): map = FME_MacroValues['MAP'] output_folder = FME_MacroValues['OUTPUT_FOLDER'] mxd = arcpy.mapping.MapDocument(map) mxd.dataDrivenPages.refresh() # Previous to the python script a shape file is written with bounding boxes. This shape file is already added to the mxd logger = fmeobjects.FMELogFile() logger.logMessageString("Generating maps based on the difference between the databases:") for pageNum in range(1, mxd.dataDrivenPages.pageCount + 1): mxd.dataDrivenPages.currentPageID = pageNum logger.logMessageString("MAP_"+str(pageNum)+" is now beeing generated.") arcpy.mapping.ExportToPNG(mxd, output_folder + "MAP_" + str(pageNum) + ".png", resolution=200, color_mode="24-BIT_TRUE_COLOR") time.sleep(2) # It is important to sleep the script, so that larger maps has time to load completely before the next image is generated del mxd pass
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- 15. TO REMEMBER Stay curiousabout available transformers – both new and old – there is often transformers that can simplify your work Remember that Python can be integrated with other software – especially ArcGIS
- 16. HEADER Body text. Loremipsum dolor sit amet, eum dico deseruisse ad. Mel te illum dicam. Body text. Lorem ipsum dolor sit amet, eum dico deseruisse ad. Mel te illum dicam.
- 17. THANK YOU! Henrik Thorén ramboll.com| hent@ramboll.dk