First u should be sure that zone is contains cubes nothing else
If(zone.elementtype.equal(Elementtype.FEBrick) || zone.elementtype.equal(Elementtype.ijkBrick))
}
1- Determine cube index
2- Get triangles
3- Get positions
4- Rendering
Else
MessegeBox.Show(“msh ynfa3 ”);
Deterine cube index
If u get all vertices in cube u will not be sure that its in the same order with marching cube structure
Sooooooooooo
U should get vertices from the top and buttom faces
U have builtin function in element called
Element.getbreackbuttomface
And the same with front face (cant remember the fn. Name sry)
Foreach vertix in front and buttom face u should check each vertix date if < ISO so u should write 1 in the cube index
Example
If vertix 3,7 data < ISO
Sooo
Index should be
01000100
Get triangles
Then u should convert this index to decimal(int) then get the value from tritable(in link u should take it copy paste) (edgetable nt important )
Tritable returns the ordered edges which ISO intersect with
Example
If tritable returned [3 7 5 2 7 3 -1 -1 -1 -1 -1 -1]
That’s mean edges 3,7,5 form triangle and edges 2,7,3 form another triangle and so on
Get positions
Then u wanna to get positions of intersection
U should tc that ur structure is defferent
Soooo
U should determine each edge (manualy) start, and end vertix
bY
swich case , if statement, OR table u construct for that purpose
u chech each edge between which vertices and then interpolate to get intersection position
Example
[3 7 5 2 7 3 -1 -1 -1 -1 -1 -1]
U check
Edge 3 between vertix 0 and 3
Then u should get intersection
P = P1 + (isovalue - V1) (P2 - P1) / (V2 - V1)
Rendering
U draw triangle between each 3 points u determine from last step
Dnt forget to get color of each ISO
If u have more than 1 ISO
Apply the last steps for each ISO
I use min value as ISO u can start ur ISO.s after min ISO
Results
Order1
Min value 0.3337…
Max value 0.9
Sooo
Using 9 colors LUT
ISO = 0.4
ISO=0.5
ISO = 0.6
ISO = 0.7
ISO = 0.8
ISO = 0.9
Using 9 colors TF
ISO=0.4
ISO=0.5
ISO=0.6
ISO=0.7
ISO=0.8
ISO=0.9
Multi ISO TF
# ISO= 3
# ISO= 4
# ISO= 5
Multi ISO LUT
ISO=3
ISO=4
# ISO= 5
