I have some doubt how to convert the polylines countour measured with a digitizer (PROLINER) for get a smooth
curves with not so many point. From the curves converted I want to make nice and smooth surfaces with no naked edges
Hi Luka - for simple shapes like what you show, I would build new curves using the polylines as visual guides. You can use the vertex locations (ExtractPt) wiith PointDeviation to see how close you are with the new curve. Post the file with the curves if you like.
Thanks Paskal! I followed your suggest it works. But still I would like to find a quick method to draw in 3D a good continuity surface (canvas panels) as soon as possible.
Still I loose a lot of time for the curves and sometimes the result is not perfect.
My personal issue that I need to follow the polylines got from the digitizer, so everything is custom, both sides, I cannot mirror for increase the speed.
Another method that I cannot discover, how to offset a curves in 3D Practically from a 3d curve I want to define a line of cutting that is in the equal distance from the curve. I leave you the file and I screenshot.
I have another question about the best method to insert a validate smooth cross section for produce a surface from a curve network command.
My job is focused on marine canvas. Like as said before usually I measure the boat with a special digitazer then I followed your advice to use the measured lines as a guides and I try to produce first a border curves and later a cross section curves for get the best surface result.
I need to find a compromise of speed and accuracy in smooth surfaces, and try to follow the real attribute of the surface like a canvas material.
I hope my explanation is clear enough.
I leave you the file with a border layer and cross section layer, so you can understand where
[quote=“Piotr, post:7, topic:27427, full:true”]
In that case I would employ Grasshopper and it’s smoothing & rebuilding options.
[/quote]What smoothing and rebuilding capability is available using Grasshopper which is not available in regular Rhino?
The original digitazed polylines curves you can find in the layer 0 black color. Don’t forget about the simple point
in the middle of the boat, which is the support for the canvas ( check the photo of the boat).
The tolerance is ± 5 mm from the digitized curves.
My though is how to find a right sequence of rights command to define a good cross section that follow the real canvas shape ( like in the photo) I’m not worry about the borders curves.
Since we are specifically talking a canvas product here, I would think that one would have to look at some tensile mesh relaxation capability - for which there are Grasshopper solutions. It’s not my area of work and possibly some of these plugins can be run from Rhino as well…
[quote=“lucky33, post:11, topic:27427, full:true”]
Hi guys,
The original digitazed polylines curves you can find in the layer 0 black color. Don’t forget about the simple pointin the middle of the boat, which is the support for the canvas ( check the photo of the boat).
The tolerance is ± 5 mm from the digitized curves.
My though is how to find a right sequence of rights command to define a good cross section that follow the real canvas shape ( like in the photo) I’m not worry about the borders curves.
Thanks in advance
regards.
[/quote]Did you intend to attach a file? If so I don’t see it.