公园城市语境下对人居环境的重视带动了口袋公园建设的加快,作为服务于城市高密区人群的新型城市公共空间,探究其发展方向有助于理论研究与建设的双重进步。基于CNKI中文数据库和Web of Science核心数据库,借助CiteSpace软件对2000-202...公园城市语境下对人居环境的重视带动了口袋公园建设的加快,作为服务于城市高密区人群的新型城市公共空间,探究其发展方向有助于理论研究与建设的双重进步。基于CNKI中文数据库和Web of Science核心数据库,借助CiteSpace软件对2000-2022年上半年口袋公园的发文量、研究热点及趋势展开对比分析。结果表明,国内外口袋公园研究存在重点关注生态效益且逐步关注社交互动功能的共性特征,但在研究尺度、研究重点上存在差异,国内关注宏观布局调控与规划策略,国外则聚焦心理修复、环境公平等人文话题。在公园城市背景下,未来中国口袋公园及其景观互动性研究应从人群需求调研、多媒体智能技术与参数化设计的应用、管理机制探索等角度拓展深入,以更好地优化口袋公园规划设计,持续增进民生福祉。展开更多
In this paper, the smooth connection between two B-spline surfaces is discussed. First, a brief proof of some simple sufficient conditions of Go and G1 continuity is given. On this basis, a novel method for Go or G1 c...In this paper, the smooth connection between two B-spline surfaces is discussed. First, a brief proof of some simple sufficient conditions of Go and G1 continuity is given. On this basis, a novel method for Go or G1 connection between two adjacent B-spline surfaces is presented. A reparameterization step is firstly taken for one of the surfaces such that they have the same parameterization in v direction, then, adjust their boundary control vertices to make them Go or Gl connected. The GI connection parameter is determined by an optimization problem. Compared with the existed methods, our method is simple and easy to be used in practice.展开更多
文摘公园城市语境下对人居环境的重视带动了口袋公园建设的加快,作为服务于城市高密区人群的新型城市公共空间,探究其发展方向有助于理论研究与建设的双重进步。基于CNKI中文数据库和Web of Science核心数据库,借助CiteSpace软件对2000-2022年上半年口袋公园的发文量、研究热点及趋势展开对比分析。结果表明,国内外口袋公园研究存在重点关注生态效益且逐步关注社交互动功能的共性特征,但在研究尺度、研究重点上存在差异,国内关注宏观布局调控与规划策略,国外则聚焦心理修复、环境公平等人文话题。在公园城市背景下,未来中国口袋公园及其景观互动性研究应从人群需求调研、多媒体智能技术与参数化设计的应用、管理机制探索等角度拓展深入,以更好地优化口袋公园规划设计,持续增进民生福祉。
基金Supported by the Natural Science Foundation of Hebei Province(No.F2012202041)Youth Research Foundation of Science and Technology of Hebei Education Departmen(No.Q2012022)
文摘In this paper, the smooth connection between two B-spline surfaces is discussed. First, a brief proof of some simple sufficient conditions of Go and G1 continuity is given. On this basis, a novel method for Go or G1 connection between two adjacent B-spline surfaces is presented. A reparameterization step is firstly taken for one of the surfaces such that they have the same parameterization in v direction, then, adjust their boundary control vertices to make them Go or Gl connected. The GI connection parameter is determined by an optimization problem. Compared with the existed methods, our method is simple and easy to be used in practice.
