Smooth splines node

[zeffii]

adds a "filleted polyline" Node. I call it smoothed line

        b  .                                     ..y..
       .        .                          .        . 
      .              .            .                  .
     .                    c                           .
    a                                                ..z..

in individual weight mode you pass a location and weight for all points ( when weights is connected )
in homogeneous weight mode all weights are the value of the slider. (currently not smart)

progress

• relative mode ( weight is relative to the distance between the a-b b-c
• absolute mode ( weight is real world value dependant)
• clamping, automatically constrict values that are not possible in absolute mode
• cyclic open / closed
• generate edges
• drop consecutive doubles (optional, and with epsilon)
• forgetting other modes...

[zeffii]

finding it hard to concentrate on this, but it's a nice distraction anyway

undecided about how cyclic mode should work, whether it should

• auto drop the last vert
• auto drop the last vert if it is identical to the first vert (within epsilon)

[zeffii]

cyclic mode added,

[zeffii]

i may push this as is without implementing the clamping. clamping will introduce extra processing time per update because each weight/radius would need to be checked against available free "line" to fillet from.

it's not the prettiest node code, but the user doesn't have to know that :)

[zeffii]

this is the kind of node where you can get desired results if you feed it "non garbage" input, and you might get some interesting / unexpected (but cool) results if you throw exaggerated values at the weight socket

[zeffii]

let me know what you lot think.

[Durman]

For what is attributes socket need?

[zeffii]

not implemented yet, i could hide it.. but if I don't it's likely i will implement it sooner :)

eventually....

attributes should accept a list(dict), where the dict contains something like

{
0: [weights, mode (for each corner), num_verts per corner, type: closed/open]
1: [weights, mode (for each corner), num_verts per corner, type: closed/open]
...
n: [weights, mode (for each corner), num_verts per corner, type: closed/open]
}

can be passed by execnode mod, i think.

[zeffii]

maybe I should add a proper fillet too, not just bezier

[zeffii]

note to self :

[zeffii]

got arcs ! pushed already

[zeffii]

now.. clamping isn't yet implemented, and is also not essential for productive use of this node. so might be a while

[Durman]

It also can be interesting to have option to prevent to set radius of circle more than distance to closest neighbour point.

[zeffii]

yeah, that's "clamping", it will be optional because slightly slower