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https://github.com/BelfrySCAD/BOSL2.git
synced 2024-12-29 16:29:40 +00:00
fix tri_grid texture, add more error handling for texture args
This commit is contained in:
Adrian Mariano
parent
29dec56cd2
commit
71449ee3ac
1 changed files with 34 additions and 15 deletions
47
skin.scad
47
skin.scad
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@ -2681,7 +2681,7 @@ function associate_vertices(polygons, split, curpoly=0) =
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// "pyramids_vnf" = VNF Tile = VNF version of "pyramids".
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// "ribs" = Heightfield = Vertically aligned triangular ribs. Giving `n=` sets the number of heightfield samples to `n` by 1. Default: 2. The choice of style does not matter.
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// "rough" = Heightfield = A pseudo-randomized rough texture. Giving `n=` sets the number of heightfield samples to `n` by `n`. Default: 32. The `roughness=` parameter specifies the height of the random texture. Default: 0.2.
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// "tri_grid" = VNF Tile = A triangular grid defined by V-groove borders Giving `inset=` specifies the horizontal inset of the triangular tops, relative to their bottoms, along all three sides. This means the V-groove top width will be double the inset value. Inset must be strictly between 0 and 0.5, default: 0.1.
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// "tri_grid" = VNF Tile = A triangular grid defined by V-groove borders Giving `inset=` specifies the horizontal inset of the triangular tops, relative to their bottoms, along the horizontal edges of the triangles. This means the V-groove top width of the horizontal grooves will be double the inset value. If the tile is scaled in the Y direction by sqrt(3) then the groove will be uniform on the three sides of the triangle. The inset must be strictly between 0 and 1/6, default: 0.05.
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// "trunc_diamonds" = VNF Tile = Truncated diamonds, four-sided pyramids with the base corners aligned with the axes and the top cut off. Or you can interpret it as V-groove lines at 45º angles. Giving `inset=` specifies the horizontal inset of the square top face compared to the bottom face along all four edges. This means the V-groove top width will be double the inset value. The inset must be strictly between 0 and sqrt(2)/4, which is about 0.35. Default: 0.1.
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// "trunc_pyramids" = Heightfield = Truncated pyramids, four sided pyramids with the base edges aligned to the axes and the top cut off. Giving `n=` sets the number of heightfield samples to `n` by `n`. Default: 6. Set `style="convex"`.
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// "trunc_pyramids_vnf" = VNF Tile = Truncated pyramids, four sided pyramids with the base edges aligned to the axes and the top cut off. You can also regard this as a grid of V-grooves. Giving `inset=` specifies the horizontal inset of the flat square tops on all four sides relative to their bottoms. This means the V-groove top width will be double the inset value. The inset must be strictly between 0 and 0.5. Default: 0.1.
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@ -2878,6 +2878,8 @@ function texture(tex, n, inset, gap, roughness) =
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assert(is_undef(gap) || is_finite(gap), "gap must be a number if given")
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assert(is_undef(roughness) || all_nonnegative([roughness]), "roughness must be a nonnegative value if given")
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tex=="ribs"?
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assert(num_defined([gap, inset, roughness])==0, "ribs texture does not accept gap, inset or roughness")
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let(
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n = quantup(default(n,2),2)
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) [[
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@ -2885,6 +2887,7 @@ function texture(tex, n, inset, gap, roughness) =
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each lerpn(0,1,n/2,endpoint=false),
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]] :
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tex=="trunc_ribs"?
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assert(num_defined([gap, inset, roughness])==0, "trunc_ribs texture does not accept gap, inset or roughness")
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let(
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n = quantup(default(n,4),4)
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) [[
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@ -2894,6 +2897,7 @@ function texture(tex, n, inset, gap, roughness) =
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each lerpn(1,0,n/4,endpoint=false),
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]] :
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tex=="trunc_ribs_vnf"?
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assert(is_undef(n), "trunc_ribs_vnf texture does not accept n")
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let(
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inset = default(inset,1/4)*2,
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gap = default(gap,1/4)
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@ -2913,6 +2917,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="wave_ribs"?
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assert(num_defined([gap, inset, roughness])==0, "wave_ribs texture does not accept gap, inset or roughness")
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let(
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n = max(6,default(n,8))
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) [[
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@ -2920,6 +2925,7 @@ function texture(tex, n, inset, gap, roughness) =
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(cos(a)+1)/2
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]] :
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tex=="diamonds"?
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assert(num_defined([gap, inset, roughness])==0, "diamonds texture does not accept gap, inset or roughness")
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let(
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n = quantup(default(n,2),2)
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) [
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@ -2937,6 +2943,7 @@ function texture(tex, n, inset, gap, roughness) =
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],
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] :
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tex=="diamonds_vnf"?
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assert(num_defined([n,gap, inset, roughness])==0, "diamonds_vnf texture does not accept n, gap, inset or roughness")
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[
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[
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[0, 1, 1], [1/2, 1, 0], [1, 1, 1],
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@ -2948,6 +2955,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="pyramids"?
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assert(num_defined([gap, inset, roughness])==0, "pyramids texture does not accept gap, inset or roughness")
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let(
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n = quantup(default(n,2),2)
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) [
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@ -2957,11 +2965,13 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="pyramids_vnf"?
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assert(num_defined([n,gap, inset, roughness])==0, "pyramids_Vnf texture does not accept n, gap, inset or roughness")
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[
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[ [0,1,0], [1,1,0], [1/2,1/2,1], [0,0,0], [1,0,0] ],
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[ [2,0,1], [2,1,4], [2,4,3], [2,3,0] ]
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] :
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tex=="trunc_pyramids"?
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assert(num_defined([gap, inset, roughness])==0, "trunc_pyramids texture does not accept gap, inset or roughness")
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let(
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n = quantup(default(n,6),3)
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) [
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@ -2971,6 +2981,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="trunc_pyramids_vnf"?
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assert(num_defined([gap, n, roughness])==0, "trunc_pyramids_vnf texture does not accept gap, n or roughness")
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let(
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inset = default(inset,0.1)
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)
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@ -2988,6 +2999,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="hills"?
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assert(num_defined([gap, inset, roughness])==0, "hills texture does not accept gap, inset or roughness")
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let(
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n = default(n,12)
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) [
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@ -2997,6 +3009,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="bricks"?
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assert(num_defined([gap,inset])==0, "bricks texture does not accept gap or inset")
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let(
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n = quantup(default(n,24),2),
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rough = default(roughness,0.05)
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@ -3010,6 +3023,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="bricks_vnf"?
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assert(num_defined([n,roughness])==0, "bricks_vnf texture does not accept n or roughness")
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let(
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inset = default(inset,0.05),
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gap = default(gap,0.05)
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@ -3039,6 +3053,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="checkers"?
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assert(num_defined([gap, n, roughness])==0, "checkers texture does not accept gap, n or roughness")
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let(
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inset = default(inset,0.05)
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)
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@ -3066,6 +3081,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="cones"?
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assert(num_defined([gap,roughness])==0, "cones texture does not accept gap or roughness")
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let(
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n = quant(default(n,16),4),
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inset = default(inset,0)
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@ -3083,6 +3099,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="cubes"?
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assert(num_defined([n, gap, inset, roughness])==0, "cubes texture does not accept n, gap, inset or roughness")
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[
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[
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[0,1,1/2], [1,1,1/2], [1/2,5/6,1], [0,4/6,0], [1,4/6,0],
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@ -3095,6 +3112,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="trunc_diamonds"?
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assert(num_defined([gap, n, roughness])==0, "trunc_diamonds texture does not accept gap, n or roughness")
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let(
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inset = default(inset,0.1)/sqrt(2)*2
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)
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@ -3113,6 +3131,7 @@ function texture(tex, n, inset, gap, roughness) =
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]
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] :
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tex=="dimples" || tex=="dots" ?
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assert(num_defined([gap,roughness])==0, str(tex," texture does not accept gap or roughness"))
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let(
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n = quant(default(n,16),4),
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inset = default(inset,0.05)
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@ -3145,32 +3164,30 @@ function texture(tex, n, inset, gap, roughness) =
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]
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) [verts, faces] :
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tex=="tri_grid"?
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assert(num_defined([gap, n, roughness])==0, str(tex," texture does not accept gap, n or roughness"))
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let(
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inset = default(inset,0.1)
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inset = default(inset,0.1)*sqrt(3)
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)
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assert(inset>0 && inset<0.5, "tri_grid texture requires inset in (0,0.5)")
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assert(inset>0 && inset<sqrt(3)/6, "tri_grid texture requires inset in (0,1/6)")
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let(
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aspect = 1 / adj_ang_to_opp(1,60),
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adj = opp_ang_to_adj(inset, 30),
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hyp = opp_ang_to_hyp(inset, 30),
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y1 = inset * aspect,
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y2 = adj * aspect,
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y3 = 0.5 - inset * aspect,
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y4 = 0.5 + inset * aspect,
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y5 = 1 - adj * aspect,
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y6 = 1 - inset * aspect,
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fdas= echo(adj=adj, hyp=hyp, y1=y1, y2=y2, y3=y3, y4=y4,y5=y5,y6=y6)
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y1 = inset / adj_ang_to_opp(1,60), // i/sqrt(3)
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y2 = 2*y1, // 2*i/sqrt(3)
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y3 = 0.5 - y1,
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y4 = 0.5 + y1,
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y5 = 1 - y2,
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y6 = 1 - y1
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)
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[
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[
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[0,0,0], [1,0,0],
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[adj,y1,1], [1-adj,y1,1],
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[0,y2,1], [1,y2,1],
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[0.5,0.5-adj*aspect,1],
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[0.5,0.5-y2,1],
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[0,y3,1], [0.5-adj,y3,1], [0.5+adj,y3,1], [1,y3,1],
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[0,0.5,0], [0.5,0.5,0], [1,0.5,0],
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[0,y4,1], [0.5-adj,y4,1], [0.5+adj,y4,1], [1,y4,1],
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[0.5,0.5+adj*aspect,1],
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[0.5,0.5+y2,1],
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[0,y5,1], [1,y5,1],
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[adj,y6,1], [1-adj,y6,1],
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[0,1,0], [1,1,0],
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@ -3185,6 +3202,7 @@ fdas= echo(adj=adj, hyp=hyp, y1=y1, y2=y2, y3=y3, y4=y4,y5=y5,y6=y6)
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]
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] :
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tex=="hex_grid"?
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assert(num_defined([gap, n, roughness])==0, str(tex," texture does not accept gap, n or roughness"))
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let(
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inset=default(inset,0.1)
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)
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@ -3219,6 +3237,7 @@ fdas= echo(adj=adj, hyp=hyp, y1=y1, y2=y2, y3=y3, y4=y4,y5=y5,y6=y6)
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]
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] :
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tex=="rough"?
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assert(num_defined([gap,inset])==0, str(tex," texture does not accept gap or inset"))
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let(
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n = default(n,32),
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rough = default(roughness, 0.2)
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