func LoadTriangles(path string) []*pt.Triangle {
materials := make(map[string]pt.Material)
file, err := os.Open(path)
if err != nil {
panic(err)
}
defer file.Close()
rows, err := csv.NewReader(file).ReadAll()
if err != nil {
panic(err)
}
var result []*pt.Triangle
for _, row := range rows {
name := row[0]
if _, ok := materials[name]; !ok {
materials[name] = NewMaterial()
}
x1, _ := strconv.ParseFloat(row[1], 64)
y1, _ := strconv.ParseFloat(row[2], 64)
z1, _ := strconv.ParseFloat(row[3], 64)
x2, _ := strconv.ParseFloat(row[4], 64)
y2, _ := strconv.ParseFloat(row[5], 64)
z2, _ := strconv.ParseFloat(row[6], 64)
x3, _ := strconv.ParseFloat(row[7], 64)
y3, _ := strconv.ParseFloat(row[8], 64)
z3, _ := strconv.ParseFloat(row[9], 64)
v1 := pt.Vector{x1, y1, z1}
v2 := pt.Vector{x2, y2, z2}
v3 := pt.Vector{x3, y3, z3}
v := pt.Vector{}
t := pt.NewTriangle(v1, v2, v3, v, v, v, materials[name])
result = append(result, t)
}
return result
}
func Cube(p pt.Vector, material pt.Material, tiles []int) []*pt.Triangle {
var result []*pt.Triangle
for i, t := range Triangles {
tile := tiles[i/2]
m := pt.Vector{float64(tile%N) / N, float64(tile/N) / N, 0}
v1, v2, v3 := t[0][0], t[1][0], t[2][0]
v1, v2, v3 = v1.Add(p), v2.Add(p), v3.Add(p)
t1, t2, t3 := t[0][1], t[1][1], t[2][1]
t1, t2, t3 = t1.Add(m), t2.Add(m), t3.Add(m)
result = append(result, pt.NewTriangle(v1, v2, v3, t1, t2, t3, material))
}
return result
}