topic Re: red lines in archydro in Water Resources Questions

red lines in archydro

Anonymous User — Fri, 26 Dec 2014 12:25:54 GMT

what is the meaning of red lines that appears after running Denditric terrain processing whit imposed drainage line and wall model?

Why red lines remains also whit all deactivated layer in dataframe?

Can someone explain this? thank you!

Re: red lines in archydro

MarkBoucher — Tue, 30 Dec 2014 16:28:08 GMT

I've never seen red lines like this if the process completes as it should. Sometimes Arc Hydro will "leave" some graphic points or lines (not GIS data or layers) if the process doesn't complete correctly for some reason. These can be selected as graphics and deleted.

I would look at the results and make sure the process completed correctly.

I assume by with imposed drainage line and wall you mean you are burning streams and building walls, right?

Re: red lines in archydro

Anonymous User — Wed, 31 Dec 2014 15:46:45 GMT

Thanks Mark! I get this error in "create drainage line" while running model builder. But I don't know how to solve...:

CreateDrainageLineStructures: -94277 System.Runtime.InteropServices.COMException (0x80040207): An invalid SQL statement was used. [SELECT * FROM drainageline WHERE Shape_Length < 289,952360305348]

at ESRI.ArcGIS.Geodatabase.IFeatureClass.Search(IQueryFilter filter, Boolean Recycling)

at ESRI.APWR.ApHydro.ArcHydroOp.CreateDrainageLineStructures(ApLayers apLayers, String streamGPValue, Double stepsize, Double startElevation, Boolean bCleanRighAngle, ITrackCancel& trackcancel, IGPMessages& messages, String& exMessage, Int32 debugLevel, Int32 iThreshold, Double nCells4ShortLine, Boolean bUseRasterExtent, List`1 lStructType2Exclude, String& flowsplittablename) in C:\Builds\HydroSolutions\10.2_ArcHydro\Sources\ArcHydroTools\src\ApHydro\ArcHydroOp.vb:line 98170

Re: red lines in archydro

MarkBoucher — Wed, 31 Dec 2014 15:52:39 GMT

Ivan,

There are several things I do to reduce the number of errors when using Arc Hydro. A while back I started a thread called "Arc Hydro Problem Solvers". It became a repository for dealing with errors. You can find it at ArcHydro Problem Solvers

Maybe you can find something in there that will address this error.

Best,

Mark

Re: red lines in archydro

PeterWilson — Tue, 06 Jan 2015 15:10:33 GMT

Hi Ivan

It seem that ArcGIS is complaining that you have an invalid sql statement. Check to make sure your syntax is correct (i.e. shapefiles\feature classes and vbscript\python)

Regards

Re: red lines in archydro

PeterWilson — Tue, 06 Jan 2015 15:15:43 GMT

Hi Ivan

Just a note, the red line seems to be from the path trace tool, which is a graphic representation of the flow path trace.

Regards

Re: red lines in archydro

Anonymous User — Sun, 01 Feb 2015 12:23:06 GMT

I resolved my problem using another stream feature extracted from topographic maps of my region. I downloaded about 719 topographic shapefiles and then I extracted my stream lines, lake polygon, and other features using iterator. Then I used Topo to raster to create my hydrodem.