func Circle(r float64) ln.Path {
var result ln.Path
for i := 0; i <= 360; i++ {
a := ln.Radians(float64(i))
x := math.Cos(a) * r
y := math.Sin(a) * r
result = append(result, ln.Vector{x, y, 0})
}
return result
}
func main() {
shape := ln.NewDifference(
ln.NewIntersection(
ln.NewSphere(ln.Vector{}, 1),
ln.NewCube(ln.Vector{-0.8, -0.8, -0.8}, ln.Vector{0.8, 0.8, 0.8}),
),
ln.NewCylinder(0.4, -2, 2),
ln.NewTransformedShape(ln.NewCylinder(0.4, -2, 2), ln.Rotate(ln.Vector{1, 0, 0}, ln.Radians(90))),
ln.NewTransformedShape(ln.NewCylinder(0.4, -2, 2), ln.Rotate(ln.Vector{0, 1, 0}, ln.Radians(90))),
)
for i := 0; i < 90; i += 2 {
fmt.Println(i)
scene := ln.Scene{}
m := ln.Rotate(ln.Vector{0, 0, 1}, ln.Radians(float64(i)))
scene.Add(ln.NewTransformedShape(shape, m))
eye := ln.Vector{0, 6, 2}
center := ln.Vector{0, 0, 0}
up := ln.Vector{0, 0, 1}
width := 750.0
height := 750.0
paths := scene.Render(eye, center, up, width, height, 20, 0.1, 100, 0.01)
paths.WriteToPNG(fmt.Sprintf("out%03d.png", i), width, height)
}
}
func main() {
lines := LoadPaths()
m := ln.Identity()
paths := Render(lines, m)
paths = append(paths, Circle(0.95))
paths = append(paths, Circle(0.953))
paths = append(paths, Circle(0.956))
paths.WriteToPNG("earth.png", 256)
// paths.Print()
for i := 0; i < 360; i += 2 {
fmt.Println(i)
m := ln.Rotate(ln.Vector{0, 0, 1}, ln.Radians(float64(i)))
paths := Render(lines, m)
paths = append(paths, Circle(0.95))
paths = append(paths, Circle(0.953))
paths = append(paths, Circle(0.956))
filename := fmt.Sprintf("out%03d.png", i)
paths.WriteToPNG(filename, 256)
}
}
func render(frame int) {
cx := math.Cos(ln.Radians(float64(frame)))
cy := math.Sin(ln.Radians(float64(frame)))
scene := ln.Scene{}
eye := ln.Vector{cx, cy, 0}.MulScalar(8)
center := ln.Vector{0, 0, 0}
up := ln.Vector{0, 0, 1}
nodes := []ln.Vector{
{1.047, -0.000, -1.312},
{-0.208, -0.000, -1.790},
{2.176, 0.000, -2.246},
{1.285, -0.001, 0.016},
{-1.276, -0.000, -0.971},
{-0.384, 0.000, -2.993},
{-2.629, -0.000, -1.533},
{-1.098, -0.000, 0.402},
{0.193, 0.005, 0.911},
{-1.934, -0.000, 1.444},
{2.428, -0.000, 0.437},
{0.068, -0.000, 2.286},
{-1.251, -0.000, 2.560},
{1.161, -0.000, 3.261},
{1.800, 0.001, -3.269},
{2.783, 0.890, -2.082},
{2.783, -0.889, -2.083},
{-2.570, -0.000, -2.622},
{-3.162, -0.890, -1.198},
{-3.162, 0.889, -1.198},
{-1.679, 0.000, 3.552},
{1.432, -1.028, 3.503},
{2.024, 0.513, 2.839},
{0.839, 0.513, 4.167},
// {0.000000, 0.000000, 0.000000},
// {0.000000, 0.000000, 1.089000},
// {1.026719, 0.000000, -0.363000},
// {-0.513360, -0.889165, -0.363000},
// {-0.513360, 0.889165, -0.363000},
//
// {0, 0, 0},
// {-1, 0, 0},
// {1, 0, 0},
// {0, 1, 0},
// {0, -1, 0},
// {0, 0, 1},
// {0, 0, -1},
//
// {-1, 1, 1},
// {-1, 1, -1},
// {-1, -1, 1},
// {-1, -1, -1},
// {1, 1, 1},
// {1, 1, -1},
// {1, -1, 1},
// {1, -1, -1},
}
edges := [][2]int{
{0, 1},
{0, 2},
{0, 3},
{1, 4},
{1, 5},
{2, 14},
{2, 15},
{2, 16},
{3, 8},
{3, 10},
{4, 6},
{4, 7},
{6, 17},
{6, 18},
{6, 19},
{7, 8},
{7, 9},
{8, 11},
{9, 12},
{11, 12},
{11, 13},
{12, 20},
{13, 21},
{13, 22},
{13, 23},
}
for _, v := range nodes {
scene.Add(ln.NewOutlineSphere(eye, up, v, 0.333))
}
// for _, v0 := range nodes {
// for _, v1 := range nodes {
// if v0 == v1 {
// continue
// }
for _, edge := range edges {
v0 := nodes[edge[0]]
v1 := nodes[edge[1]]
d := v1.Sub(v0)
z := d.Length()
u := d.Cross(up).Normalize()
a := math.Acos(d.Normalize().Dot(up))
m := ln.Translate(v0)
if a != 0 {
m = ln.Rotate(u, a).Translate(v0)
}
c := ln.NewOutlineCylinder(m.Inverse().MulPosition(eye), up, 0.1, 0, z)
scene.Add(ln.NewTransformedShape(c, m))
}
// }
width := 750.0
height := 750.0
paths := scene.Render(eye, center, up, width, height, 60, 0.1, 100, 0.01)
paths.WriteToPNG(fmt.Sprintf("out%03d.png", frame), width, height)
}