merge method

Sp3dObj merge(Sp3dObj other)

(en)Merge another object into this object. This operation is high cost. id, name, author, physics, option, layerNum and drawMode values do not change.

(ja)このオブジェクトに別のオブジェクトをマージします。この操作は高コストです。 このオブジェクト固有のパラメータ（id,name,author,physics）とオプション値、 layerNum、drawModeは変更されません。

• other : other obj.

Implementation

Sp3dObj merge(Sp3dObj other) {
  Sp3dObj copyOther = other.deepCopy();
  // 追加する各要素のインデックスを変更。
  final int myVerticesLen = vertices.length;
  final int myMaterialLen = materials.length;
  final int myImageLen = images.length;
  for (Sp3dMaterial i in copyOther.materials) {
    if (i.imageIndex != null) {
      i.imageIndex = i.imageIndex! + myImageLen;
    }
  }
  for (Sp3dFragment i in copyOther.fragments) {
    for (Sp3dFace j in i.faces) {
      if (j.materialIndex != null) {
        j.materialIndex = j.materialIndex! + myMaterialLen;
      }
      for (int k = 0; k < j.vertexIndexList.length; k++) {
        j.vertexIndexList[k] += myVerticesLen;
      }
    }
  }
  // 追加
  for (Uint8List i in copyOther.images) {
    images.add(i);
  }
  for (Sp3dMaterial i in copyOther.materials) {
    materials.add(i);
  }
  for (Sp3dV3D i in copyOther.vertices) {
    vertices.add(i);
  }
  for (Sp3dFragment i in copyOther.fragments) {
    fragments.add(i);
  }
  return this;
}