Curve order for Lasercutting

Hi,
I have some data that I want to Lasercut. I managed the data so that the flattened list at the end contains all curves (only lines and polylines) in the exact order that I want them to be cut. But when I bake the curves and reference them from Rhino back into Grasshopper the order in the list has changed. How can I make sure, that the laser cuts the curves in my desired order? (lines first, closed polylines at last). Something with ID’s I guess?

I uploaded a quick example:

Replies to This Discussion

Permalink Reply by Rémy Maurcot on November 29, 2012 at 10:08am

Hi Klumpen,

Everything is in the order of selection, as you bake the geometry in order from 1 to n, n is the last build. When a new selection is the last object that is selected first.
So if you send directly from GH is OK, but since it will make a rhino reverse list in GH.

Permalink Reply by Yoann Mescam (Systemiq) on November 29, 2012 at 12:17pm

You can bake objects with names using the Bake component from Lunchbox

Not quite sure how DXF deals with order of objects though.

Permalink Reply by Rémy Maurcot on November 30, 2012 at 3:14am

Klumen

By doing a simple test:
Assign a name to each geometry, BAKE.
Select All to see rhino in the direction of selection, export dxf.
Select All command AutoACD and "List" gives the same meaning as rhino which corresponds to the inverse grasshopper.

I noticed that if you select any setting with the grasshopper (set multiple curve) the direction is to preserve, amazing.

AutoCAD:

Commande: liste d'AutoCAD
4 trouvé(s)

CERCLE Calque: "Défaut"
Espace: Espace objet
Couleur: 1 (rouge) Type de ligne: "DUCALQUE"

POLYLIGNE Calque: "Défaut"
Espace: Espace objet
Couleur: 1 (rouge) Type de ligne: "DUCALQUE"

SPLINE(ELLIPSE) Calque: "Défaut"
Espace: Espace objet
Couleur: 1 (rouge) Type de ligne: "DUCALQUE"

LIGNE Calque: "Défaut"
Espace: Espace objet
Couleur: 1 (rouge) Type de ligne: "DUCALQUE"