Anemone flow

[JENIL_Sarvaiya]

i m not able to figure out mesh intersection as i proceed. Its actually giving the direction of flow over terrain. but it comes as invalid and outcome is messy lines. i m using anemone for this flow analysis. can someone help me.

[JENIL_Sarvaiya]

output is like this… which is nout true i feel

[Quan_Li]

Share the simplified GH, so people can look into your problem.

[Erik_Beeren]

Hi @JENIL_Sarvaiya

Try Bison.

Bison

[JENIL_Sarvaiya]

water flow.gh (20.2 KB)

[JENIL_Sarvaiya]

Okay, I will try that out too… Does that work in a similar way as this? that would be great.

[Erik_Beeren]

It has a spacial component for flow direction of water.
https://www.bison.la/

[JENIL_Sarvaiya]

Will this plugin work in rhino 7?

[Erik_Beeren]

yes in Rhino 7 it works fine, but the pluginn is discontinued and I heard it won’t be working anymore in rhino 8.

[Toto]

That’s not a good news, what alternative do we have?

[Erik_Beeren]

Road on Terrain

Bison has several interesting tools. Too bad it’s no longer maintained and won’t work on Rhino 8 when that’s run in the NETCore runtime. -wim

[wim (Wim Dekeyser)]

… basically meaning that you’ll still be able to run that in Rhino 8 by running SetDotNetRuntime and setting that to NETFramework.
But, yes, it’s no longer maintained…
-wim

[Erik_Beeren]

Hi @Toto,

Depends what you are looking for.
GHGis has some similar tools.

GHopperGIS

And Heron I use quite a lot.

Heron

[Joseph_Oster]

Water runoff script for network of curves

When I closed your previous file, Rhino/Grasshopper froze and then crashed. Not good! Looking at your updated file, I see HUGE numbers of points and data tree paths (many empty) in the outputs, so it’s very likely that there are data tree mixups involved. Looking… Later: How does this look? I flattened the output of MCX, then sorted those points by Z to choose the lowest point as the next way forward. Finally, added the red group to end the loop when a duplicate point is encountered, a “de…

[Baris]

You may also want to take a look here:

Heat map of water flow on mesh terrain

This thread gave me the idea to do some research on this topic, and I found this paper: I poorly implemented the algorithm(on the left), on the right side a drain script on the base of @AndersDeleuran’s python version: [grafik] Both overlayed: [grafik] Maybe someone finds it useful. The excessive use of classes is just for fun and practice. File:20211031_Drain.gh (103.0 KB)