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davidyannick

Extract curve from shape

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I have a boolean and I'd like to extract a shape from this one, to create a new piece. 

Now I can do it (red one) but I'd like to have something more precise like the blue 

Is it possible ?

thanks

Capture d'écran 2019-12-14 09.47.40.png

ray.hiplc

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Hi,

in "matchsize1" turn on scale to fit.

in "ray1" turn change method to project rays and set direction from vector to (0,-1,0)

turn off "facet1"

 

 

 

ray.hipnc

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36 minutes ago, Aizatulin said:

Hi,

in "matchsize1" turn on scale to fit.

in "ray1" turn change method to project rays and set direction from vector to (0,-1,0)

turn off "facet1"

 

 

 

ray.hipnc

ok thanks for your help :)

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or you can create a curve on the object. use the object as second input of the curve and it will be projected onto the object.

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20 hours ago, Houdini7 said:

or you can create a curve on the object. use the object as second input of the curve and it will be projected onto the object.

Hi,

Jumping on this if I may...

I tried it, and can't seem to get the intended results. I tried connecting the input of a curve node to the output of a tube/grid/etc, before or after I start drawing the curve points, and I get no snapping to the input mesh. I tried transforming/moving the input mesh too, no change. What am I missing?

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5 hours ago, Herve said:

Hi,

Jumping on this if I may...

I tried it, and can't seem to get the intended results. I tried connecting the input of a curve node to the output of a tube/grid/etc, before or after I start drawing the curve points, and I get no snapping to the input mesh. I tried transforming/moving the input mesh too, no change. What am I missing?

The curve sop can accept another curve as input, then it will snap to this curve (sometimes needed, but not what you want). But the drawcurve sop works like you would expect. Try it.

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