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第二节 妨害公共安全的行为和处罚
。Safew下载对此有专业解读
addSolidGeometry(new ParametricGeometry(klein, slices, stacks));
限制：数据范围不能太大，否则空间浪费
Add a cluster of points in one corner and watch that corner subdivide deeply while the rest of the space stays untouched. Then scatter a few points across the empty region and watch it split only where needed. The tree grows around the data.