Adding "richness" to a topography curve / Replace points in a list

I think i am posting to much in the last times.... but everything i try to do, there is always something that stop me.

The thing now is that I have a lot of topographic curves of a city, but they are general and has no detail and I am doing some schemes like in the photo attached. So i want to move randomly some control points and then replace them in the same order and position to build the new curve... But i dont know how to do the last part, replacing and rebuild.

Any idea?

Best regards,

Daniel

Attachments:

12496428_10153874404896248_6950804596317471787_o.jpg, 141 KB
Reconstruir curva topográfica.gh, 13 KB
Curva .3dm, 1.5 MB

Replies to This Discussion

Permalink Reply by David Rutten on January 11, 2016 at 5:21pm

The problem with using the existing control-points is that you may not get any randomization if the curve doesn't contain any cp's along a certain stretch. You can divide the curve into equal segments to ensure the randomness is equally spread along the curve.

I attached two approaches, one which randomized points along the curve in the XY plane, and the other which randomized points along the curve along the local perpendicular vector.

Attachments:

Reconstruircurvatopogrfica.gh, 21 KB

Permalink Reply by peter fotiadis on January 12, 2016 at 1:07am

Maybe (just maybe) the "inverse" could work as well : just "enrich" the mesh by replacing selected faces with more "detailed" ones by taking into account the local topics of interest (buildings, pavements etc).

For instance: go to a face> spread a few rnd points on it > delauney (with respect the face plane) > remove the face > replace with the delauney mesh.

Permalink Reply by Daniel Domenech Muñoz on January 12, 2016 at 8:59am

Yes, that would be a good solution for making "details" in a more approximate scale, but here the idea was only working with the curves alone, no more meshes (maybe for general schemes).

Thank you

Permalink Reply by Daniel Domenech Muñoz on January 12, 2016 at 8:50am

Nice solution. Thx.

Do you know a good tutorial about working with lists, because i always have problems and i don´t know how to solve them. In this case, was if I want to replace some points in the order (random order) they are and then rebuild it. Is it difficult?

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