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pseudoku
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KeyCap.scad
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206
KeyCap.scad
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@ -0,0 +1,206 @@
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use <scad-utils/morphology.scad> //for cheaper minwoski
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use <scad-utils/transformations.scad>
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use <scad-utils/shapes.scad>
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use <scad-utils/trajectory.scad>
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use <scad-utils/trajectory_path.scad>
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use <sweep.scad>
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use <skin.scad>
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key =
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// BotWid, BotLen, TopWDif, TopLDif, height, WShift, LShift XAngSkew, YAngSkew, ZAngSkew LExpo, WExpo, CapRadIn, CapRadFn, CapRadExpd
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[18.16, 18.16, 3, 5, 10, 0, 0, 0, 0, 0, 5, 5, .5, 4, 1];
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// [18.16, 18.16, 6, 4, 8.5, -1, 1.75, 0, 1, 0, 0, false],//C0R1 unusede
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// [18.16, 18.16, 6.2, 4, 7.5, 3, 1.75, 0, 1, 0, 0, false],//C0R2 unused
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//
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// [18.16, 18.16, 5.7, 4, 7.4, -2, -1.5, 1, 1.2, 0, 0, false],//C1R0 clipped G20 like
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// [18.16, 18.16, 5.7, 5.7, 7.4, 0, 0, 1, 1.2, 0, 0, false],//C1R1 clipped G20 DSA
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// [18.16, 18.16, 5.7, 4, 7.4, -5, 1.5, 1, 1.2, 0, 0, false],//C1R2 clipped G20 like
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//
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// [18.4, 18.4, 3, 5.7, 7.4, 0, 0, 1, 2, -3, -2, false],//C2R0 clipped tilted
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// [18.4, 18.4, 3, 5.7, 7.4, 0, 0, 1, 2, -3, 0, false],//C2R1 clipped tilted
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// [18.4, 18.4, 3, 5.7, 7.4, -5, 1.5, 1, 2, -3, 0, false],//C2R2 clipped tilted
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//
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// [18.4, 18.4, 5.7, 5.7, 7.4, -5, -1, 1, 1.2, 0, 0, false],//C3R0
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// [18.4, 18.4, 5.7, 5.7, 7.4, 0, 0, 1, 1.2, 0, 0, false],//C3R1 Norm DSA
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// [18.16, 18.16, 5.7, 4, 7.5, -5, 1.5, 0, 1, 0, 0, false],//C3R2
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//
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// [18.4, 18.4, 5.7, 5.7, 7.4, -5, 0, 1, 1.2, 0, 0, false],//C4R0
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// [18.4, 18.4, 5.7, 5.7, 7.4, 0, 0, 1, 1.2, 0, 0, false],//C4R1
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// [18.16, 18.16, 5.7, 3, 7.5, -5, 1.5, 0, 1, 0, 0, false],//C4R2
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//
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// [18.16, 18.16, 5.7, 4, 6.2, 7, 1.75, 0, 1, 0, 0, false],//C5R0
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// [18.4, 18.4, 5.7, 5.7, 7.4, 0, 0, 1, 1.2, 0, 0, false],//C5R1
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// [18.16, 18.16, 5.7, 3, 7.5, -5, 1.5, 0, 1, 0, 0, false],//C5R2
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//
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// [18.16, 18.16, 4, 6, 7.4, 6, -1.5, 1, 1.2, 0, 0, false],//C6R0
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// [18.16, 18.16, 4, 5.7, 7.4, 0, 0, 1, .5, 0, 0, false],//C6R1 true
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// [18.16, 18.16, 4, 3, 7.5, -4, 1.5, 1, 1, 1, -1, false] //C6R2
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//];
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step = 1;
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//function path(t) = [t, t, t];
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function ellipse(a, b, d = 0, rot1 = 0, rot2 = 360) = [for (t = [rot1:step:rot2]) [a*cos(t), b*sin(t)*(1+d*cos(t))]]; //shape to
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//
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//
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function path(t) = [0,0,t];
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//
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//module roundedRect(size = [0,0,0], radius= 1.5) { //simplified to single call using Morphology Util lib
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// linear_extrude(size[2])rounding(r=radius)square([size[0], size[1]], center = true);
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//}
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function shape1 (a,b,c,d) =
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concat(
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[[a,-c]],
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ellipse(a, b, d = 0, rot2 = 180),
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[[-a,-c]]
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);
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function DishShape (a,b,c,d) =
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concat(
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[[c,b]],
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ellipse(a, b, d = 0,rot1 = 90, rot2 = 270),
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[[c,-b]]
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);
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//linear_extrude(5)polygon(shape1(1, 1, 1, d = 0));
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function oval_path(theta, phi, a, b, c, deform = 0) = [
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a*cos(theta)*cos(phi), //x
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c*sin(theta)*(1+deform*cos(theta)) , //
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b*sin(phi),
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];
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path_trans2 = [for (t=[0:step:180]) translation(oval_path(t,0,10,15,2,0))*rotation([0,90,0])];
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//Define the trajectory of the dish shsape cuts
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FrontTraj = [
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trajectory(forward = 5, pitch = -10, roll = 5),
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trajectory(forward = 2, pitch = -60),
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trajectory(forward = 10, pitch = 10),
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];
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BackTraj = [
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trajectory(forward = 5, pitch = 10 , roll = 5),
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trajectory(forward = 5, pitch = -90),
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trajectory(forward = 10, pitch = 10),
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];
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//quantized trajectory to be fed into transform
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stepsize = 100;
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fn=60;
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FrontPath = quantize_trajectories(FrontTraj, steps = stepsize, loop=false, start_position= $t*4);
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BackPath = quantize_trajectories(BackTraj, steps = stepsize, loop=false, start_position= $t*4);
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FrontCurve = [ for(i=[0:len(FrontPath)-1]) transform(FrontPath[i], DishShape(2, 10, 3, d = 0)) ];
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BackCurve = [ for(i=[0:len(BackPath)-1]) transform(BackPath[i], DishShape(2, 10, 3, d = 0)) ];
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FrontCurve2 = [ for(i=[0:len(FrontPath)-1]) transform(FrontPath[i], DishShape(2+2, 10+2, 2, d = 0)) ];
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//CapWall(capID,thickness_difference, depth_difference, )
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layers = 40;
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function CapTranslation(t) =
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[
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((1-t)/layers*key[5]), //X shift
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((1-t)/layers*key[6]), //Y shift
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(t/layers*key[4]) //Z shift
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];
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function CapRotation(t) =
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[
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((1-t)/layers*key[7]), //X shift
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((1-t)/layers*key[8]), //Y shift
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((1-t)/layers*key[9]) //Z shift
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];
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function CapTransform(t) =
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[
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pow(t/layers, key[10])*(key[0]-key[2]) + (1-pow(t/layers, key[10]))*key[0],
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pow(t/layers, key[11])*(key[1]-key[3]) + (1-pow(t/layers, key[11]))*key[1]
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];
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function CapRadius(t) = pow(t/layers, key[10])*(key[0]-key[2]) + (1-pow(t/layers, key[10]))*key[0],
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difference(){
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skin([for (i=[0:layers-1])transform(translation(CapTranslation(i)) * rotation(CapRotation(i)), rounded_rectangle_profile(CapTransform(i),fn=fn,r=.5))]);
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//another skin morph with wall thickness
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//use intersection with stem here?
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//cut for fonts and extra pattern for light?
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//#translate([0,0,26])rotate([-80,0,0])sweep(shape1(10, 10, 2, d = 0), path_trans2);
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//#translate([0,0,key[4]+5])rotate([0,-90,90])skin(FrontCurve);
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//#translate([0,0,key[4]+5])rotate([0,-90,270])skin(BackCurve);
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}
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//echo(morph(
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// profile1 = rounded_rectangle_profile([key[0],key[1]],fn=fn,r=.5),
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// profile2 = transform(translation([0,0,key[4]+5]), rounded_rectangle_profile([key[0]-key[2],key[1]-key[3]],fn=fn,r=4)),
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// slices=10)
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// ););
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/// ----- helper functions
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function rounded_rectangle_profile(size=[1,1],r=1,fn=32) = [
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for (index = [0:fn-1])
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let(a = index/fn*360)
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r * [cos(a), sin(a)]
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+ sign_x(index, fn) * [size[0]/2-r,0]
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+ sign_y(index, fn) * [0,size[1]/2-r]
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];
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function sign_x(i,n) =
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i < n/4 || i > n-n/4 ? 1 :
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i > n/4 && i < n-n/4 ? -1 :
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0;
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function sign_y(i,n) =
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i > 0 && i < n/2 ? 1 :
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i > n/2 ? -1 :
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0;
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powExpo = 2;
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function interpolate_profile(profile1, profile2, t) = (1-pow(t,powExpo)) * profile1 + pow(t,powExpo)* profile2;
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//function interpolate_arc_profile(profile1, profile2, t) = (1-sin(t*90)) * profile1 + sin(t*90) * profile2;
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// Morph two profile
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function morph(profile1, profile2, slices=1, fn=0) = morph0(
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augment_profile(to_3d(profile1),max(len(profile1),len(profile2),fn)),
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augment_profile(to_3d(profile2),max(len(profile1),len(profile2),fn)),
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slices
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);
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function morph0(profile1, profile2, slices=1) = [
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for(index = [0:slices-1])
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interpolate_profile(profile1, profile2, index/(slices-1))
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];
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// The area of a profile
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//function area(p, index_=0) = index_ >= len(p) ? 0 :
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function pseudo_centroid(p,index_=0) = index_ >= len(p) ? [0,0,0] :
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p[index_]/len(p) + pseudo_centroid(p,index_+1);
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//// Nongeneric helper functions
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function profile_distance(p1,p2) = norm(pseudo_centroid(p1) - pseudo_centroid(p2));
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function rate(profiles) = [
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for (index = [0:len(profiles)-2]) [
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profile_length(profiles[index+1]) - profile_length(profiles[index]),
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profile_distance(profiles[index], profiles[index+1])
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]
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];
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function profiles_lengths(profiles) = [ for (p = profiles) profile_length(p) ];
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function profile_length(profile,i=0) = i >= len(profile) ? 0 :
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profile_segment_length(profile, i) + profile_length(profile, i+1);
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function expand_profile_vertices(profile,n=32) = len(profile) >= n ? profile : expand_profile_vertices_0(profile,profile_length(profile),n);
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