Using squish for a last shoe shape

PetcuDaniel · February 21, 2019, 10:13pm

Dear Members,

Using squish command in Rhino gives a result which is not good for me but I can’t succeed to understand if I’m using it in a proper manner. the 2D surfaces are smaller than I’ve expected
The options which I’ve used are: ( SplitSeams=No PreserveBoundary=Yes Deformation=StretchOnly Material=Floppy Outside=Up Decorate=No )

Also I would like squish command in Grasshopper. I’ve tried some examples from
an old Grasshopper topic [ https://bit.ly/2GEu7dZ ] but without success.
Any help will be appreciated!
Thank you in advance,

Shoe last squish.3dm (1.3 MB)

anon78208900 · February 22, 2019, 12:02am

Greetings,

I leave you here some approach (es), check carefully, 'hope it helps!
SHOE_LAST_FLATTENING.gh (95.6 KB)

anon78208900 · February 22, 2019, 12:04am

sorry I didn’t solve your squish problem

PetcuDaniel · February 22, 2019, 12:16am

At least you’ve tried and I thank you for this!

anon78208900 · February 22, 2019, 12:32am

no s**t

haha anyway if you decrease length factor a bit you get almost same length

you’re welcome

anon78208900 · February 22, 2019, 1:04am

@davidsmavrov, different but similar to Pattern Projection via FlowAlongSrf

davidsmavrov · February 22, 2019, 8:41am

Thanks for taging me brother. Checking it out.

PetcuDaniel · February 22, 2019, 9:33am

Seems very promising to me but something doesn’t work -! I can’t see the flatten surface ‘number 2’ (‘1. Invalid cast: Brep » Brep’). Can you help, please? Thanks!

anon78208900 · February 22, 2019, 3:10pm

oh, you can ignore that, it was just to make a boundary around the flattened mesh and it fails occasionally - the mesh you want is in the ‘orient’ component, which you must ‘preview’ so it’s visible, and hit the reset button on kangaroo to re-simulate

also bear in mind this was done for one of the two surfaces only, as a start, though you can input the other side (surface) of the last separately or update the file to flatten both if you deem it adequate

PetcuDaniel · February 23, 2019, 9:50pm

It works for one side [the blue one] but for the other doesn’t work!

There is another technical problem: In the first attachment I didn’t included the lines from the 3D surface which is defining the upper pieces! This because the Squish command ask for selecting them and is flattening them in the same time. What do you think?
Shoe last squish.3dm (1.0 MB)

anon78208900 · February 24, 2019, 4:48pm

looking into it, for now you should probably ‘squish’ each surface at a time (don’t input all to-be-flattened surfaces at once as the script is built for one-surface-at-a-time scenario?

PetcuDaniel · February 24, 2019, 7:59pm

I’ve tried this but it doesn’t work for the blue half!

anon78208900 · February 24, 2019, 9:30pm

I don’t know what you are referring to, the .3dm you just shared contains only the red side again, not blue, which supposedly doesn’t work.

…I’ll grab it from the original file…

anon78208900 · February 24, 2019, 9:35pm

also you have ghost surfaces that caused you the problems

anon78208900 · February 24, 2019, 10:01pm

updated here:
SHOE_LAST_FLATTENING_B.gh (70.3 KB)

test your two sides:

PetcuDaniel · February 24, 2019, 10:33pm

Hi,
Now it works for both sides! I don’t know what are the ghost surfaces - sorry if this was the problem-I’ll try to understand!
Each surface is containing some curves which is defining the 3D pieces. These should be flattened together with the surfaces in order to build the 2D upper’s pieces [hope the attached images are clear - I’ve used Squish command to obtain them which I’m sure is not a new news for you!!] How cand be done this with GH?

Thank you very much for your effort and patience!

anon78208900 · February 24, 2019, 10:41pm

try this
SHOE_LAST_FLATTENING_C.gh (464.5 KB)

it will bring back the curve points (for some reason it discards some, so I can’t get the curves back):

Can’t tell you if it’s 100% accurate, but what is? haha - once baked though (the flattened curve points) you can quickly draft curves with curvethroughpt command manually in rhino

PetcuDaniel · February 24, 2019, 11:04pm

I’m not sure if is accurate [or how much!]!
2D curves seems to be a projection of 3D curves on the flattened surface, which is not correct! A curve is not flattened [see the yellow curve]!
I’ve to understand the process, to play a little with it and to compare with some real shoe last flattened surfaces [including with those from Rhino-squish command] in order to see how accurate is!
Seems to be promising and I’ll provide a feedback here!
Anyway, any new idea or improvement is very appreciated and helpful!
Thank you!

Flattened%20curves