Latest Contributions by MarkBoucher

‎10-23-2012

A topology only works on the feature classes in the feature dataset it is in. It is basically a database function that works in the database it is in. Yes, you can set up the topology to work on just one feature class in the feature dataset. For example, you can say you want there to be no gaps and no overlaps between the features in the feature class. My understanding is that if you want to include more than one feature class in the topology, they MUST to be in the same dataset as the topology. A fast way to get all the feature classes in one dataset is to use ArcCatalog. Right click on the feature dataset, choose import, choose Feature Class (multiple). See image: [ATTACH=CONFIG]18670[/ATTACH]

‎10-19-2012

I've started a practice that seems to make many errors/crashes go away. Layers/rasters needed for Arc Hydro are: DEM PROCESSING: rawdem (Extracted by mask from county-wide dem for each project. Set processing extents using this or mask ploly) agreestream* innerwalls* outerwalls* [INDENT]*I do work all over my County and so have county-wide "master" geodatabase for these that I use on all my Arc Hydro Projects.[/INDENT] WATERSHED DELINEATION: BatchPoints If I have these layers, I can recreate the hydrologically correct DEM (HC DEM) anytime I want and re-delineate the watersheds. So my practice is this: As I'm developing my HC DEM, and have to modify the agreedem, innerwalls, outerwalls layers, I can save the BatchPoints to my project folder and then delete the geodatabase and folder with rasters in it (Target Locations). This starts everything fresh and new. Then I can use model builder to reprocess the watersheds. When I'm ready to re-delineate the watersheds, I copy the BatchPoints into the geodatabase and set the BatchDone value to "0". I run the watershed delineation, etc. via the Arc Hydro menus though I could possibly do this via Model Builder also. Since I've started doing this (and following solutions in the postings above on this thread), my crashes and errors have all gone away! Here is the ModelBuilder model for my latest project. I don't use outerwalls on this project, but that could be added. [ATTACH=CONFIG]18585[/ATTACH]

‎10-19-2012

I've started a practice that seems to make many errors/crashes go away. Layers/rasters needed for Arc Hydro are: DEM PROCESSING: rawdem (Extracted by mask from county-wide dem for each project. Set processing extents using this or mask ploly) agreestream* innerwalls* outerwalls* *I do work all over my County and so have county-wide "master" geodatabase for these that I use on all my Arc Hydro Projects. WATERSHED DELINEATION: BatchPoints If I have these layers, I can recreate the hydrologically correct DEM (HC DEM) anytime I want and re-delineate the watersheds. So my practice is this: As I'm developing my HC DEM, and have to modify the agreedem, innerwalls, outerwalls layers, I can save the BatchPoints to my project folder and then delete the geodatabase and folder with rasters in it (Target Locations). This starts everything fresh and new. Then I can use model builder to reprocess the watersheds. When I'm ready to re-delineate the watersheds, I copy the BatchPoints into the geodatabase and set the BatchDone value to "0". I run the watershed delineation, etc. via the Arc Hydro menus though I could possibly do this via Model Builder also. Since I've started doing this (and following solutions in the postings above on this thread), my crashes and errors have all gone away! Here is the ModelBuilder model for my latest project. I don't use outerwalls on this project, but that could be added. [ATTACH=CONFIG]18585[/ATTACH]

‎10-18-2012

After learning about the limitation of shape files this forum which directed me to http://resources.arcgis.com/en/help/main/10.1/index.html#/for_shapefile_output/01m100000004000000/, I'd suggest moving the data into a geodatabase and see if the functions work better.

‎10-16-2012

I did not have the OBJECTID field in my feature class. Interesting. Which feature class was missing the OBJECTID? Agreestream?

‎10-11-2012

Natalie, If you share your data, I could try to run the process on it. Mark

‎10-11-2012

Sounds like it may be easier to have a student worker manually digitize the contours...

‎10-11-2012

Look at the http://forums.arcgis.com/threads/68776-Excel-point-data-to-contour-maps post by jbswain from earlier today.

‎10-11-2012

Bill, I just noticed that you had replied to the thread with the question below and I can't send you a private msg. The flow path tracer is in the Arc Hydro toolbar. Did you figure it out? Do you still need the model screenshot? (not sure if I kept it) Mark

‎10-10-2012

Arc Hydro isn't made to do what you're wanting to do. I suggest that you post this question in a different forum such as http://forums.arcgis.com/forums/107-Spatial-Analyst.

‎10-09-2012

Steve, and Jeffrey: Thanks for the clarifications. Daniel: Jeffery's equation should work given the actual layer names. I usually build the equations using the "pad" in the raster calculator. Had I done that, my "=" would have been "==". The "pad" is handy in that quotes and other syntax can be kept free-er from human error. Also the was a remnant of sloppy cutting and pasting.

‎10-09-2012

You'll need to use the Con() function. It would look something like this: Con("first_raster"=0,"second_raster.tif",(("second_raster.tif") * 0.6) * "first_raster") In the above, if first_raster=0, the result will be whatever is in second_raster.tif, if first_raster not =0, perform equation.

‎10-09-2012

I think that Zoom to selected works only with feature classes/datasets, not rasters. If you select a row on the integer raster attribute table*, you can run "Conversion Tools.tbx\From Raster\Raster to Polygon" and it will convert only the selected raster grids to polygons. Then you can choose the new polygon data set and zoom to it. If you were automating this as a tool, I could see doing it this way; otherwise, I'm not sure how you would do it. I see no commands or tools yet. *You can only get an attribute table from an integer raster.

‎10-05-2012

Natalie, This is a common error message. It could be there is file conflict in your temp directory. By clearing the temp directory, you eliminate potential file conflicts. Go here (http://forums.arcgis.com/threads/48100-ArcHydro-Problem-Solvers) to find several solutions including deleting the temp directory files. See the second suggestion under number 2 of the first post for the simplest way of doing this. Report back if that works! Mark

‎10-04-2012

Also, make sure your processing extent includes both datasets. I've had the processing extent reset to a smaller extent based on a dataset I used in previous processes.

Online Status	Offline
Date Last Visited	‎03-10-2026 11:29 AM

My Ideas

Latest Contributions by MarkBoucher

Re: Calculating boundaries of different adjacent polygons

Re: ArcHydro Problem Solvers

Re: ArcHydro Problem Solvers

Re: Distance between points in two shapefiles

Re: Error in DEM Reconditioning in Arc hydro 10

Re: Error in DEM Reconditioning in Arc hydro 10

Re: create contours from scanned map and export it to dxf file

Re: KRIGE Result: please help explain something

Re: Least Cost Path tool

Re: Modified DRASTIC using ArcMap

Re: Raster Calculator, Problem with 0 and CON

Re: Raster Calculator, Problem with 0

Re: �??Zoom to selected�?� from the attribute table of the raster

Re: Error in DEM Reconditioning in Arc hydro 10

Re: Zonal Statistics not working for a subset of polygons

Re: Error HRESULT E_FAIL has been returned from a ...

Re: DEM Reconditioning does not change DEM

Re: Editing features do not show change until exit...

Re: Why can't I define a stream network?

Re: Hidden/Stacked polylines