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Selecting edges of fluid particles


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Hi all, im doing a lava flow project and  im looking for a way to just isolate the edges of my flip sim (only the sides and front edges). Ill be using these edges as a source for my steam/smoke/fire. Btw using distance from centroid, bbox, attribute transfer, gradient ramp din give good results. lil help pls. Thanks.

lava.jpg

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Great one! But its giving me the whole border, where i need only the edges. Meaning not the points in the middle.  Anyway thanks for the help! ill figure it out. Anymore trick up your sleeves?

lava.jpg

Edited by kishenpj
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your FLIP looks to propagate on a floor ? if that is the case

- i would take your flip assign @Cd = {1,1,1}

- create a very detail grid for your floor assign @Cd = {0,0,0}

- attribute transfer @Cd with distance at 0.01 fallof pretty small like 1.0 so that it leaks out of your flip

- then do an attribute transfer at 0.01 without the fallof (0.0

- substract the 2 and you get the edge of your stuff

 

 

test.hiplc

Edited by sebkaine
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On 2016-05-04 at 1:03 PM, sebkaine said:

your FLIP looks to propagate on a floor ? if that is the case

- i would take your flip assign @Cd = {1,1,1}

- create a very detail grid for your floor assign @Cd = {0,0,0}

- attribute transfer @Cd with distance at 0.01 fallof pretty small like 1.0 so that it leaks out of your flip

- then do an attribute transfer at 0.01 without the fallof (0.0

- substract the 2 and you get the edge of your stuff

 

 

test.hiplc

Oh yes, that's the first thing i did, did not give what i needed. And yes, it flows on an uneven floor, but there is uneven walls on both sides. Uneven in the sense low frequency noise. A cave, you can say.

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