Je n'arrive pas à faire fonctionner correctement le chemin d'écoulement le plus long pour les bassins versants dans ArcHydro, car je reçois constamment les erreurs 010429 et 010067 lorsque je l'exécute. Quelqu'un sait-il comment éviter que cela se produise ? J'utilise ArcGIS 10.6.1 sur Windows 10 et la dernière version d'ArcHydro (10.6.0.13). Bien que je sois débutant avec ArcHydro, il n'y a pas beaucoup d'entrées pour cet outil, donc je ne comprends pas ce que je pourrais faire de mal. J'ai essayé certaines des suggestions ici<\/A>, sans succès. Ci-joint une capture d'écran du message d'erreur que je reçois ainsi que les bassins versants et les lignes d'écoulement que j'ai pu délimiter pour le projet sur lequel je travaille actuellement.<\/P><\/BODY><\/HTML>
I see that the Python tool for LFP for Adjoint Catchments also requires LFP for Catchments as input. Was this with a different version? Has the memory leak been addressed? I'm still getting an error like this.
Were you able to solve this? I am getting the same error message repeatedly. Cannot get past this step.
Thanks
That doesn't work either. Longest Flow Path for Adjoint Catchments requires the output from Longest
Flow Path for Catchments, as seen below.
If I try to run Longest Flow Path for for Adjoint Catchments using the output I got from Longest Flow Path for Catchments or Drainage Lines, an error message pops up: "No corresponding flowpath found for catchments!". Is there a workaround I should be aware of to avoid this?
Try to use the Python version of the Longest Flow Path for Adjoint Catchments tool under the Arc Hydro Tools Python toolbox. It skips the Longest Flow Path for Catchments step which is problematic for large rasters (memory leak). To support LFP for Watershed, you do not need the LFP for Catchments, only the LFP for Adjoint Catchments.
Christine Dartiguenave
Esri Water Resources Team
I went through all of those steps once again in order and still got stuck on Longest Flow Path for Catchments. In the image I posted I had the adjoint catchments turned by accident, which is why it looked like there were two centroids per catchment.
Looking at your watershed boundaries and points, it seems odd that there are two points in each watershed (polygon) as well as two drainage lines (blue polylines). If the points are centroids, then there is something wrong. The "two points inside each polygon" is so consistent, it makes me think that maybe you change the number of cells in the stream definition an didn't rerun some other part of the Basic Dendritic Terrain Processing functions
If the polygons are the catchment layer, then I'd check to make sure everything is correct at that step.
Flying in the blind here since I don't know everything about your project, but if you redo any step before the step you are one, you have to redo all the steps in between. There's a good chance you didn't do this, but maybe there is something is a process before the longest flow path routine that is not finishing.
I've inserted a screen capture and highlighted just the steps I use. They have to be done in order and if you re-do any step, you must redo all the following steps.
Heading out of town with limited ability to follow this. Hope you figure it out!
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