| { | |
| "data": [ | |
| { | |
| "image": "data/rendering-bracket.png", | |
| "text": "package main\n\nimport (\n\t\"io/ioutil\"\n\n\t\"github.com/unixpickle/model3d/model3d\"\n\t\"github.com/unixpickle/model3d/render3d\"\n)\n\nconst (\n\tBracketSize = 40\n\tBracketHeight = 15\n\tBracketDepth = 5\n\n\tHolePadding = 5\n\tHoleDepth = 10\n\tHoleRadius = 2\n)\n\nfunc main() {\n\tsolid := &model3d.SubtractedSolid{\n\t\tPositive: model3d.JoinedSolid{\n\t\t\t&model3d.Rect{\n\t\t\t\tMaxVal: model3d.Coord3D{X: BracketSize, Z: BracketHeight, Y: BracketDepth},\n\t\t\t},\n\t\t\t... // Rest of the code\n\t\t},\n\t\tNegative: model3d.JoinedSolid{\n\t\t\t... // Rest of the code\n\t\t},\n\t}\n\tmesh := model3d.MarchingCubesSearch(solid, 0.5, 8)\n\tioutil.WriteFile(\"bracket.stl\", mesh.EncodeSTL(), 0755)\n\n\trender3d.SaveRandomGrid(\"rendering.png\", mesh, 3, 3, 200, nil)\n}" | |
| }, | |
| { | |
| "image": "data/rendering-menorah.png", | |
| "text": "package main\n\nimport (\n\t\"log\"\n\t\"math\"\n\n\t\"github.com/unixpickle/model3d/model3d\"\n\t\"github.com/unixpickle/model3d/render3d\"\n)\n\nconst (\n\tHolderBottomThickness = 0.05\n\tHolderTopThickness = 0.1\n\tHolderHeight = 0.7\n\tHolderRadius = 0.18\n\n\tThickness = HolderRadius + HolderBottomThickness\n)\n\nfunc main() {\n\tsolid := model3d.JoinedSolid{\n\t\t&model3d.SubtractedSolid{\n\t\t\tPositive: &model3d.Sphere{\n\t\t\t\tCenter: model3d.Coord3D{Z: -0.2},\n\t\t\t\tRadius: 0.9,\n\t\t\t},\n\t\t\tNegative: &model3d.Rect{\n\t\t\t\tMinVal: model3d.XYZ(-1, -1, -2),\n\t\t\t\tMaxVal: model3d.XYZ(1, 1, 0),\n\t\t\t},\n\t\t},\n\t\t&model3d.Rect{\n\t\t\tMinVal: model3d.XYZ(-2, -0.9, -0.3),\n\t\t\tMaxVal: model3d.XYZ(2, 0.9, 0),\n\t\t},\n\t\t&CandleHolder{Center: model3d.Z(0.6)},\n\t}\n\tfor _, pole := range GeneratePoles() {\n\t\tsolid = append(solid, pole, &CandleHolder{\n\t\t\tCenter: pole.P2,\n\t\t})\n\t}\n\n\tlog.Println(\"Creating mesh...\")\n\tmesh := model3d.MarchingCubesSearch(solid, 0.0125, 8)\n\n\tlog.Println(\"Saving mesh...\")\n\tmesh.SaveGroupedSTL(\"menorah.stl\")\n\n\tlog.Println(\"Saving rendering...\")\n\trender3d.SaveRendering(\"rendering.png\", mesh, model3d.Coord3D{Z: 6, Y: -10}, 500, 400, nil)\n}\n\nfunc GeneratePoles() []*ScewedPole {\n\tminError := 10000.0\n\tbestResult := []*ScewedPole{}\n\n\tfor spacing := 0.001; spacing < 1.0; spacing += 0.001 {\n\t\tpoles, curError := GeneratePolesSpacing(spacing)\n\t\tif curError < minError {\n\t\t\tminError = curError\n\t\t\tbestResult = poles\n\t\t}\n\t}\n\n\treturn bestResult\n}\n\nfunc GeneratePolesSpacing(spacing float64) ([]*ScewedPole, float64) {\n\tpole1 := &ScewedPole{P2: model3d.Coord3D{X: -3, Z: 3.5}, Radius: Thickness}\n\tpole2 := pole1.Mirror()\n\n\tpole3 := pole1.MidwayUp(spacing).Mirror()\n\tpole4 := pole2.MidwayUp(spacing).Mirror()\n\n\tpole5 := pole1.MidwayUp(spacing).MidwayUp(spacing).Mirror()\n\tpole6 := pole3.MidwayUp(spacing).Mirror()\n\tpole7 := pole2.MidwayUp(spacing).MidwayUp(spacing).Mirror()\n\tpole8 := pole4.MidwayUp(spacing).Mirror()\n\n\treturn []*ScewedPole{\n\t\tpole1,\n\t\tpole2,\n\t\tpole3,\n\t\tpole4,\n\t\tpole5,\n\t\tpole6,\n\t\tpole7,\n\t\tpole8,\n\t}, math.Abs(pole1.P2.Dist(pole5.P2) - pole5.P2.Dist(pole6.P2))\n}\n\ntype ScewedPole struct {\n\tP1 model3d.Coord3D\n\tP2 model3d.Coord3D\n\tRadius float64\n}\n\nfunc (s *ScewedPole) Min() model3d.Coord3D {\n\treturn s.P1.Min(s.P2).Sub(model3d.XYZ(s.Radius, s.Radius, s.Radius))\n}\n\nfunc (s *ScewedPole) Max() model3d.Coord3D {\n\treturn s.P1.Max(s.P2).Add(model3d.XYZ(s.Radius, s.Radius, 0))\n}\n\nfunc (s *ScewedPole) Contains(c model3d.Coord3D) bool {\n\tfracP2 := (c.Z - s.P1.Z) / (s.P2.Z - s.P1.Z)\n\tif fracP2 < 0 || fracP2 > 1 {\n\t\treturn false\n\t}\n\tcenterPoint := s.P1.Scale(1 - fracP2).Add(s.P2.Scale(fracP2))\n\treturn centerPoint.Dist(c) <= s.Radius\n}\n\nfunc (s *ScewedPole) Mirror() *ScewedPole {\n\treturn &ScewedPole{\n\t\tP1: s.P1,\n\t\tP2: model3d.XYZ(s.P1.X*2-s.P2.X, s.P2.Y, s.P2.Z),\n\t\tRadius: s.Radius,\n\t}\n}\n\nfunc (s *ScewedPole) MidwayUp(spacing float64) *ScewedPole {\n\tfrac := spacing / s.P2.Sub(s.P1).Norm()\n\tnewP1 := s.P2.Scale(0.5 + frac).Add(s.P1.Scale(0.5 - frac))\n\treturn &ScewedPole{\n\t\tP1: newP1,\n\t\tP2: s.P2,\n\t\tRadius: s.Radius,\n\t}\n}\n\ntype CandleHolder struct {\n\tCenter model3d.Coord3D\n}\n\nfunc (c *CandleHolder) Min() model3d.Coord3D {\n\tdx := HolderRadius + HolderTopThickness\n\treturn c.Center.Sub(model3d.XYZ(dx, dx, 0))\n}\n\nfunc (c *CandleHolder) Max() model3d.Coord3D {\n\tdx := HolderRadius + HolderTopThickness\n\treturn c.Center.Add(model3d.XYZ(dx, dx, HolderHeight))\n}\n\nfunc (c *CandleHolder) Contains(coord model3d.Coord3D) bool {\n\tcoord = coord.Sub(c.Center)\n\tzFrac := coord.Z / HolderHeight\n\tif zFrac < 0 || zFrac > 1 {\n\t\treturn false\n\t}\n\tthickness := zFrac*HolderTopThickness + (1-zFrac)*HolderBottomThickness\n\tradius := coord.XY().Norm()\n\treturn radius >= HolderRadius && radius <= HolderRadius+thickness\n}" | |
| }, | |
| { | |
| "image": "data/rendering-menorah.png", | |
| "text": "This image represents the 3d model of a menorah created from the go script written from the model3d repo. the 3d model is created in stl format with intentions of being 3d printed" | |
| }, | |
| { | |
| "image": "data/rendering-bracket.png", | |
| "text": "This image represents the 3d model of a simple bracket created from the go script written from the model3d repo. the 3d model is created in stl format with intentions of being 3d printed" | |
| }, | |
| { | |
| "image": "data/rendering-ruler.png", | |
| "text": "package main\n\nimport (\n\t\"log\"\n\n\t\"github.com/unixpickle/model3d/model3d\"\n\t\"github.com/unixpickle/model3d/render3d\"\n)\n\nconst (\n\tThickness = 0.2\n\tWidth = 5.0\n\tHeight = 1.0\n\tMarkSize = 0.03\n\tMarkSmallestHeight = 0.05\n\tMarkGap = 1.0 / 16.0\n\tMarkEpsilon = 0.005\n)\n\nfunc main() {\n\tx := -1.0 / 16.0\n\tmidY := Height / 2\n\n\tmesh := model3d.NewMesh()\n\n\tfor i := 0; i <= int(Width*16); i++ {\n\t\tnewX := x + MarkGap - MarkSize/2\n\t\tnewMidY := MarkSmallestHeight\n\t\tfor j := uint(0); j <= 4; j++ {\n\t\t\tif i&((1<<j)-1) == 0 {\n\t\t\t\tnewMidY *= 1.5\n\t\t\t}\n\t\t}\n\t\tnewMidY = Height - newMidY\n\t\tCreateQuad(mesh, FlatPoint(x, 0), FlatPoint(x, midY), FlatPoint(newX, newMidY), FlatPoint(newX, 0))\n\t\tCreateQuad(mesh, FlatPoint(x, midY), FlatPoint(x, Height), FlatPoint(newX, Height), FlatPoint(newX, newMidY))\n\t\tmidY = newMidY\n\t\tx = newX\n\t\traiseX1 := x\n\t\traiseX2 := x + MarkEpsilon\n\t\traiseX3 := x + MarkSize - MarkEpsilon\n\t\traiseX4 := x + MarkSize\n\t\traiseY1 := midY\n\t\traiseY2 := midY + MarkEpsilon\n\t\traiseY3 := Height - MarkEpsilon\n\t\traiseY4 := Height\n\t\tCreateQuad(mesh, FlatPoint(raiseX1, raiseY4), FlatPoint(raiseX1, raiseY1), RaisedPoint(raiseX2, raiseY2), RaisedPoint(raiseX2, raiseY3))\n\t\tCreateQuad(mesh, FlatPoint(raiseX4, raiseY1), FlatPoint(raiseX4, raiseY4), RaisedPoint(raiseX3, raiseY3), RaisedPoint(raiseX3, raiseY2))\n\t\tCreateQuad(mesh, FlatPoint(raiseX4, raiseY4), FlatPoint(raiseX1, raiseY4), RaisedPoint(raiseX2, raiseY3), RaisedPoint(raiseX3, raiseY3))\n\t\tCreateQuad(mesh, FlatPoint(raiseX1, raiseY1), FlatPoint(raiseX4, raiseY1), RaisedPoint(raiseX3, raiseY2), RaisedPoint(raiseX2, raiseY2))\n\t\tCreateQuad(mesh, RaisedPoint(raiseX2, raiseY2), RaisedPoint(raiseX2, raiseY3), RaisedPoint(raiseX3, raiseY3), RaisedPoint(raiseX3, raiseY2))\n\t\tCreateQuad(mesh, FlatPoint(raiseX1, 0), FlatPoint(raiseX1, raiseY1), FlatPoint(raiseX4, raiseY1), FlatPoint(raiseX4, 0))\n\t\tx = raiseX4\n\t}\n\n\tmesh.Iterate(func(t *model3d.Triangle) {\n\t\tfor i := 0; i < 3; i++ {\n\t\t\tp := t[i]\n\t\t\tp1 := t[(i+1)%3]\n\t\t\tif len(mesh.Find(p, p1)) == 1 {\n\t\t\t\tp2 := p1\n\t\t\t\tp3 := p\n\t\t\t\tp2.Z = -Thickness\n\t\t\t\tp3.Z = -Thickness\n\t\t\t\tCreateQuad(mesh, p, p1, p2, p3)\n\t\t\t}\n\t\t}\n\n\t\tt1 := *t\n\t\tfor i := range t1 {\n\t\t\tt1[i].Z = -Thickness\n\t\t}\n\t\tmesh.Add(&t1)\n\t})\n\n\tlog.Println(\"Calculating normals...\")\n\tmesh, _ = mesh.RepairNormals(1e-8)\n\n\tlog.Println(\"Saving mesh...\")\n\tmesh.SaveGroupedSTL(\"ruler.stl\")\n\n\tlog.Println(\"Rendering...\")\n\trender3d.SaveRandomGrid(\"rendering.png\", mesh, 3, 3, 300, nil)\n}\n\nfunc FlatPoint(x, y float64) model3d.Coord3D {\n\treturn model3d.Coord3D{X: x, Y: y}\n}\n\nfunc RaisedPoint(x, y float64) model3d.Coord3D {\n\treturn model3d.XYZ(x, y, MarkSize)\n}\n\nfunc CreateQuad(m *model3d.Mesh, p1, p2, p3, p4 model3d.Coord3D) {\n\tm.Add(&model3d.Triangle{p1, p2, p3})\n\tm.Add(&model3d.Triangle{p1, p3, p4})\n}" | |
| }, | |
| { | |
| "image": "data/rendering-ruler.png", | |
| "text": "this image displays a multi view display of a ruler created from the model3d repo, written in go progrannubg language. the script creates a 3d model in stl format with intentions of having the ruler 3d printed." | |
| } | |
| ] | |
| } | |