Hello mentors,
This is my second attempt to develop a parametric cell pattern.
I have developed a cell as shown in the image, script and design image attached as well,
how should I proceed to convert this cell into a pattern?
I am not able to get the result using sequence node
your help is appreciated.
Regards
cell.dyn (169.3 KB)I’d recommend combining your geometry into a single solid or polysurface first, just so it’s easier to manage. But all you’re doing at this point is translating the geometry across a specified grid system. Look into Geometry.Translate.
Thank you for your reply, But how will I translate the cells so that it can be parametrically adjusted for its length and width, and here we have a staggered array of cells too ?cell_14 (2).dyn (272.2 KB)
You’ll want to use Geometry.Translate (or something similar) to copy your cell across an array. You can use the values from your cell geometry to develop the necessary “spacing” in your array to make everything line up.
My example isn’t perfect because the hexagons are inscribed in the generating circle but you get the idea…
My idea is a bit different:
You may also want to look into the pattern toolkit package to see if it can array your points along the surface and build the shapes accordingly.
Thanks for the directions @Nick_Boyts @jacob.small
I have managed to build the pattern
now I would like to add a hole at the edges of each cell as an opening which is gradually increasing in size from the centre of pattern array. can we have a controlled iso trim ?
can you please share this script for my reference ?
This would be very similar to the previous process. You should already have those points defined by your original geometry. Now you just need to write a formula to determine the radius of your hole (as a function of location) and build cylinders from those circles to boolean with your original cell pattern.
Generated using an elaborate script, but also works with curved surfaces
//Parameters
w = 50;
l = 50;
nw = 10;
nl = 10;
h = (w/nw)*0.25;
//Base Surface
srf = Rectangle.ByWidthLength(w,l).Patch();
//Points Grid
p00 = srf.PointAtParameter((0..1..#(nw*3)+1)<1>,(0..1..#(nl*3)+1)<2>);
n00 = srf.NormalAtParameter((0..1..#(nw*3)+1)<1>,(0..1..#(nl*3)+1)<2>);
//Quad 01
p10 = List.TakeEveryNthItem(p00,6,1);
n11 = List.TakeEveryNthItem(n00,6,1);
p11 = p10.Translate(n11,h);
p12 = List.TakeEveryNthItem(p00,6,2);
p13 = List.TakeEveryNthItem(p00,6,3);
p14 = List.TakeEveryNthItem(p11<1>,6,2);
p15 = List.TakeEveryNthItem(p11<1>,6,4);
p16 = List.TakeEveryNthItem(p13<1>,6,3);
p17 = List.TakeEveryNthItem(p12<1>,6,2);
p18 = List.Clean(List.Transpose(List.Transpose([p14,p15,p16,p17])<1>),false);
pg1 = Surface.ByPerimeterPoints(List.FilterByBoolMask(p18,List.Count(p18<1><2>)>3)["in"]);
//Quad 02
p20 = List.TakeEveryNthItem(p00,6,4);
n21 = List.TakeEveryNthItem(n00,6,4);
p21 = p20.Translate(n21,h);
p24 = List.TakeEveryNthItem(p21<1>,6,3);
p25 = List.TakeEveryNthItem(p21<1>,6,1);
p28 = List.Clean(List.Transpose(List.Transpose([p17,p16,p24,p25])<1>),false);
pg2 = Surface.ByPerimeterPoints(List.FilterByBoolMask(p28,List.Count(p28<1><2>)>3)["in"]);
//Quad 03
p31 = List.TakeEveryNthItem(p00,6,5);
p32 = List.TakeEveryNthItem(p00,6,6);
p36 = List.TakeEveryNthItem(p32<1>,6,2);
p37 = List.TakeEveryNthItem(p31<1>,6,3);
p38 = List.Clean(List.Transpose(List.Transpose([p25,p24,p37,p36])<1>),false);
pg3 = Surface.ByPerimeterPoints(List.FilterByBoolMask(p38,List.Count(p38<1><2>)>3)["in"]);
//Quad 04
p41 = List.DropItems(p14,1);
p42 = List.DropItems(p15,1);
p48 = List.Clean(List.Transpose(List.Transpose([p36,p37,p42,p41])<1>),false);
pg4 = Surface.ByPerimeterPoints(List.FilterByBoolMask(p48,List.Count(p48<1><2>)>3)["in"]);
//Tri 01
p57 = List.TakeEveryNthItem(p20<1>,6,3);
p58 = List.Clean(List.Transpose(List.Transpose([p16,p24,p57])<1>),false);
pg5 = Surface.ByPerimeterPoints(List.FilterByBoolMask(p58,List.Count(p58<1><2>)>2)["in"]);
//Tri 02
p68 = List.Clean(List.Transpose(List.Transpose([p37,p24,p57])<1>),false);
pg6 = Surface.ByPerimeterPoints(List.FilterByBoolMask(p68,List.Count(p68<1><2>)>2)["in"]);
//Tri 03
p77 = List.TakeEveryNthItem(p10<1>,6,2);
p78 = List.Clean(List.Transpose(List.Transpose([p77,p14,p17])<1>),false);
pg7 = Surface.ByPerimeterPoints(List.FilterByBoolMask(p78,List.Count(p78<1><2>)>2)["in"]);
//Tri 04
p87 = List.DropItems(List.TakeEveryNthItem(p10<1>,6,2),1);
p88 = List.Clean(List.Transpose(List.Transpose([p36,p41,p87])<1>),false);
pg8 = Surface.ByPerimeterPoints(List.FilterByBoolMask(p88,List.Count(p88<1><2>)>2)["in"]);
//Quad 05
q14 = List.TakeEveryNthItem(p11<1>,6,0)<1>;
q15 = List.TakeEveryNthItem(p12<1>,6,6)<1>;
q16 = List.TakeEveryNthItem(p13<1>,6,5);
q18 = List.Clean(List.Transpose(List.Transpose([p15,q14,q15,q16])<1>),false);
qg1 = Surface.ByPerimeterPoints(List.FilterByBoolMask(q18,List.Count(q18<1><2>)>3)["in"]);
//Quad 06
q24 = List.TakeEveryNthItem(p21<1>,6,5);
q25 = List.DropItems(p25<1>,1);
q28 = List.Clean(List.Transpose(List.Transpose([q24,q16,q15,q25])<1>),false);
qg2 = Surface.ByPerimeterPoints(List.FilterByBoolMask(q28,List.Count(q28<1><2>)>3)["in"]);
//Quad 07
q34 = List.TakeEveryNthItem(p32<1>,6,6);
q35 = List.TakeEveryNthItem(p31<1>,6,5);
q38 = List.Clean(List.Transpose(List.Transpose([q34,q35,q24,q25])<1>),false);
qg3 = Surface.ByPerimeterPoints(List.FilterByBoolMask(q38,List.Count(q38<1><2>)>3)["in"]);
//Quad 08
q44 = List.DropItems(p15,1);
q45 = List.DropItems(q14,1);
q48 = List.Clean(List.Transpose(List.Transpose([q44,q35,q34,q45])<1>),false);
qg4 = Surface.ByPerimeterPoints(List.FilterByBoolMask(q48,List.Count(q48<1><2>)>3)["in"]);
//Tri 05
q54 = List.TakeEveryNthItem(p20<1>,6,5);
q58 = List.Clean(List.Transpose(List.Transpose([q16,q24,q54])<1>),false);
qg5 = Surface.ByPerimeterPoints(List.FilterByBoolMask(q58,List.Count(q58<1><2>)>2)["in"]);
//Tri 06
q68 = List.Clean(List.Transpose(List.Transpose([q54,q24,q35])<1>),false);
qg6 = Surface.ByPerimeterPoints(List.FilterByBoolMask(q68,List.Count(q68<1><2>)>2)["in"]);
//Tri 07
q74 = List.TakeEveryNthItem(p10<1>,6,0)<1>;
q78 = List.Clean(List.Transpose(List.Transpose([q14,q15,q74])<1>),false);
qg7 = Surface.ByPerimeterPoints(List.FilterByBoolMask(q78,List.Count(q78<1><2>)>2)["in"]);
//Tri 08
q84 = List.DropItems(q14,1);
q85 = List.DropItems(q15,1);
q88 = List.Clean(List.Transpose(List.Transpose([q34,q84,q85])<1>),false);
qg8 = Surface.ByPerimeterPoints(List.FilterByBoolMask(q88,List.Count(q88<1><2>)>2)["in"]);
//Quad 09
r11 = List.TakeEveryNthItem(p21<1>,6,4);
r12 = List.TakeEveryNthItem(p20<1>,6,3);
r18 = List.Clean(List.Transpose(List.Transpose([p15,r11,r12,p16])<1>),false);
rg1 = Surface.ByPerimeterPoints(List.FilterByBoolMask(r18,List.Count(r18<1><2>)>3)["in"]);
//Quad 10
r28 = List.Clean(List.Transpose(List.Transpose([p42,p37,r12,r11])<1>),false);
rg2 = Surface.ByPerimeterPoints(List.FilterByBoolMask(r28,List.Count(r28<1><2>)>3)["in"]);
//Quad 11
r38 = List.Clean(List.Transpose(List.Transpose([r11,p15,q16,q54])<1>),false);
rg3 = Surface.ByPerimeterPoints(List.FilterByBoolMask(r38,List.Count(r38<1><2>)>3)["in"]);
//Quad 12
r48 = List.Clean(List.Transpose(List.Transpose([r11,q54,q35,p42])<1>),false);
rg4 = Surface.ByPerimeterPoints(List.FilterByBoolMask(r48,List.Count(r48<1><2>)>3)["in"]);
//Quad 13
r51 = List.TakeEveryNthItem(p11<1>,6,1);
r58 = List.Clean(List.Transpose(List.Transpose([r51,p77,p17,p25])<1>),false);
rg5 = Surface.ByPerimeterPoints(List.FilterByBoolMask(r58,List.Count(r58<1><2>)>3)["in"]);
//Quad 14
r61 = List.DropItems(p77,1);
r62 = List.DropItems(r51,1);
r68 = List.Clean(List.Transpose(List.Transpose([p25,p36,r61,r62])<1>),false);
rg6 = Surface.ByPerimeterPoints(List.FilterByBoolMask(r68,List.Count(r68<1><2>)>3)["in"]);
//Quad 15
r71 = List.DropItems(r51<1>,1);
r78 = List.Clean(List.Transpose(List.Transpose([r71,q25,q15,q74])<1>),false);
rg7 = Surface.ByPerimeterPoints(List.FilterByBoolMask(r78,List.Count(r78<1><2>)>3)["in"]);
//Quad 16
r81 = List.DropItems(List.DropItems(r51,1)<1>,1);
r82 = List.DropItems(q74,1);
r88 = List.Clean(List.Transpose(List.Transpose([q25,r81,r82,q34])<1>),false);
rg8 = Surface.ByPerimeterPoints(List.FilterByBoolMask(r88,List.Count(r88<1><2>)>3)["in"]);
pn1 = List.Flatten([pg1,pg2,pg3,pg4,pg5,pg6,pg7,pg8,qg1,qg2,qg3,qg4,qg5,qg6,qg7,qg8,rg1,rg2,rg3,rg4,rg5,rg6,rg7,rg8],-1);
//Punctures
b11 = List.TakeEveryNthItem(List.TakeEveryNthItem(p00,6,2)<1>,6,2);
b12 = List.TakeEveryNthItem(List.TakeEveryNthItem(p00,6,3)<1>,6,3);
b13 = List.TakeEveryNthItem(List.TakeEveryNthItem(p00,6,2)<1>,6,0);
b14 = List.TakeEveryNthItem(List.TakeEveryNthItem(p00,6,3)<1>,6,5);
b21 = List.TakeEveryNthItem(List.TakeEveryNthItem(p00,6,5)<1>,6,3);
b22 = List.TakeEveryNthItem(List.TakeEveryNthItem(p00,6,6)<1>,6,2);
b23 = List.TakeEveryNthItem(List.TakeEveryNthItem(p00,6,5)<1>,6,5);
b24 = List.TakeEveryNthItem(List.TakeEveryNthItem(p00,6,6)<1>,6,0);
sp1 = List.Flatten([b11,b13,b21,b23],-1);
ep1 = List.Flatten([b12,b14,b22,b24],-1);
bl1 = Line.ByStartPointEndPoint(sp1,ep1).TrimByParameter(0.2,0.8);
tk1 = Math.Average(bl1.Length);
d01 = bl1.DistanceTo(srf.PointAtParameter(0.5,0.5));
tk2 = Math.RemapRange(d01,tk1/10,tk1/3);
dr1 = srf.NormalAtPoint(bl1.PointAtParameter(0.5));
sl1 = Solid.ByUnion(PolyCurve.ByThickeningCurve(bl1,tk2,dr1).Patch().Thicken(tk2));
pn2 = List.Flatten(pn1.SubtractFrom(sl1),-1);Looks like I missed the fact that you had a half offset on the U axis of the surface so I’d recommend you see @Vikram_Subbaiah’s post instead.
I tried to use geometry.Split to trim the edges using a cylinder.
it seems not working. am I doing anything wrong here ?
I have managed to build cylinder to trim the surfaces gradually
I have managed to do the cell trimming.
Cylinder.Bypointsradius --> Solid.byunion–> Surface.subtractform
Can we give a switch so that It can prevent cell surface from trimming ?
