/* Create a new shapeset from a json labels file and a directory of meshes.
*/
func CreateNew(meshes_dir, labels_path string) (ss *ShapeSet, err error) {
// Ensure meshes_dir ends with a slash
if meshes_dir[len(meshes_dir)-1] != 47 {
meshes_dir += "/"
}
// Attempt to read given paths
var label_data []byte
label_data, err = ioutil.ReadFile(labels_path)
if err != nil {
return
}
var files []os.FileInfo
files, err = ioutil.ReadDir(meshes_dir)
if err != nil {
return
}
// Load labels from json file
labels := make(map[string]string, 0)
var labels_temp interface{}
json.Unmarshal(label_data, &labels_temp)
for key, val := range labels_temp.(map[string]interface{}) {
labels[key] = val.(string)
}
// Load all meshes with the expected filename pattern (.obj) from the
// directory at meshes path.
meshes := make([]*Mesh, 0)
for _, f := range files {
r, _ := regexp.Compile(`^(\d+-\d+).obj$`)
if r.MatchString(f.Name()) == true {
mesh_file_path := meshes_dir + f.Name()
var m *gomesh.Mesh
m, err = gomesh.ReadOBJFile(mesh_file_path)
if err != nil {
return
}
m.Name = string(r.FindSubmatch([]byte(f.Name()))[1])
meshes = append(meshes, WrapMesh(m))
}
}
// Compose shapeset
ss = New("New ShapeSet", labels, meshes)
return
}
