基于VRML/X3D的虚拟房地产展示系统设计与实现
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摘要
面对日益增加的竞争压力和多样化的市场需求,越来越多的房地产公司开始将直观形象的虚拟现实技术应用到房地产的销售展示中,以促进销售业绩的增长。在虚拟现实技术中,VRML和X3D是非常重要的技术标准。其中VRML(VirtualReality Modeling Language,虚拟现实建模语言)定义了用于建立虚构的三维场景模型的语言。X3D(Extensible 3D,可扩展三维)定义了如何在多媒体中整合基于网络传播的交互三维图形的国际标准。基于VRML/X3D的虚拟现实技术已被广泛应用于医疗、娱乐、军事、制造、房地产等领域。
本文课题基于VRML/X3D技术,设计与实现一个虚拟房地产展示系统。主要采用VRML语言建模,并使用可视化软件辅助模型设计,使用LOD算法优化虚拟展示系统,应用JavaScript语言扩展演示系统的交互功能。针对传统房地产展示系统图形界面单一、图形实时交互性不足、真实沉浸感差等问题,重点研究了房地产三维场景逼真性建模技术和交互功能实现,以及系统实现过程中各种实时处理技术及策略的应用。力图在改善纹理映射图像质量的同时,提高图像纹理映射速度。
本文介绍了虚拟房地产展示系统的设计与实现过程,详细阐述了课题涉及的软件开发技术,深入探讨了虚拟现实的建模技术,给出了在建模方案中的优化方法。本文最后给出了基于VRML/X3D的虚拟房地产展示系统实现结果,并提出课题的下一步规划。
Face competition pressure and the market demand diversifying increasing by gradually, the more and more many real estate agency begins penetrating image virtual reality technology application to be sold in real estate showing middle, promotes selling achievement increasing by. In virtual reality technology, VRML and X3D are very important technical norms. VRML (Virtual Reality Modeling Language) has defined the three-dimensional circumstances being used to build fiction model language. X3D, expansion 3D have defined X3D Extensible how to integrate the interactive 3D artwork international standard spreading owing to the network in multi-media. Owing to VRML/X3D Virtual Reality technology, the quilt already applies to fields such as medical treatment, entertainment, military affairs, fabrication, real estate etc.
This paper topic based on VRML/X3D technology, designs and realizes a virtual reality real estate showing system .Adopting VRML language to build a model mainly, uses the Visualization software to assist model to design that, and uses the LOD algorithm optimization to suppose the function showing system, applying JavaScript language expanding interactive demonstrating system. The artwork interface is unitary, artwork real time interactive nature immerses insufficient, true specifically for tradition real estate shows system to feel the low grade problem, the build the model technology and interactive verisimilitude function having studied three-dimensional circumstances of real estate realizes, applies priority as well as system realization process is hit by the various real-time processing technology and tactics. While the forced diagram improving vein mapping image mass, improve image vein mapping speed.
This paper introduces that virtual reality estate shows systematic design and realizes process, have set forth the software that the problem relates to detailedly developing a technology, has gone deep into optimization method in having built the model technology,has given a scheme out in building a model has discussed suppositional real.lastly, This paper has given out finally owing to that VRML/X3D virtual reality estate shows the system realization bear fruit,has brought forward problem plan next step.
本文课题基于VRML/X3D技术,设计与实现一个虚拟房地产展示系统。主要采用VRML语言建模,并使用可视化软件辅助模型设计,使用LOD算法优化虚拟展示系统,应用JavaScript语言扩展演示系统的交互功能。针对传统房地产展示系统图形界面单一、图形实时交互性不足、真实沉浸感差等问题,重点研究了房地产三维场景逼真性建模技术和交互功能实现,以及系统实现过程中各种实时处理技术及策略的应用。力图在改善纹理映射图像质量的同时,提高图像纹理映射速度。
本文介绍了虚拟房地产展示系统的设计与实现过程,详细阐述了课题涉及的软件开发技术,深入探讨了虚拟现实的建模技术,给出了在建模方案中的优化方法。本文最后给出了基于VRML/X3D的虚拟房地产展示系统实现结果,并提出课题的下一步规划。
Face competition pressure and the market demand diversifying increasing by gradually, the more and more many real estate agency begins penetrating image virtual reality technology application to be sold in real estate showing middle, promotes selling achievement increasing by. In virtual reality technology, VRML and X3D are very important technical norms. VRML (Virtual Reality Modeling Language) has defined the three-dimensional circumstances being used to build fiction model language. X3D, expansion 3D have defined X3D Extensible how to integrate the interactive 3D artwork international standard spreading owing to the network in multi-media. Owing to VRML/X3D Virtual Reality technology, the quilt already applies to fields such as medical treatment, entertainment, military affairs, fabrication, real estate etc.
This paper topic based on VRML/X3D technology, designs and realizes a virtual reality real estate showing system .Adopting VRML language to build a model mainly, uses the Visualization software to assist model to design that, and uses the LOD algorithm optimization to suppose the function showing system, applying JavaScript language expanding interactive demonstrating system. The artwork interface is unitary, artwork real time interactive nature immerses insufficient, true specifically for tradition real estate shows system to feel the low grade problem, the build the model technology and interactive verisimilitude function having studied three-dimensional circumstances of real estate realizes, applies priority as well as system realization process is hit by the various real-time processing technology and tactics. While the forced diagram improving vein mapping image mass, improve image vein mapping speed.
This paper introduces that virtual reality estate shows systematic design and realizes process, have set forth the software that the problem relates to detailedly developing a technology, has gone deep into optimization method in having built the model technology,has given a scheme out in building a model has discussed suppositional real.lastly, This paper has given out finally owing to that VRML/X3D virtual reality estate shows the system realization bear fruit,has brought forward problem plan next step.
引文
[1]金丰易居网.http://www.ehousee.com
[2]刘尚勤,顾耀林.基于X3D构建高效的虚拟场景[J].计算机工程与设计,2006,27(2):303-306
[3]柳飞.建筑小区漫游系统及实现方法[J].山西建筑,2004,30(3):135-136
[4]傅晟,彭群生.一个桌面型虚拟建筑环境实时漫游系统的设计与实现[J].计算机学报,1998,21(9):793-799
[5]中国虚拟技术论坛.http://www.cnvrmt.org.
[6]张帆.房地产网上销售及虚拟漫游系统中若干关键技术的应用研究[D]:[硕士学学位论文].江苏:浙江大学,2003
[7]丘京松.虚拟现实技术在教育中的应用[EB/OL].http://www.cmr.com.cn/distance/wangluo/013.htm
[8]张枝军.教学实践中虚拟现实的实现途径[J].无锡商业职业技术学院学报,2005,5(1):71-73
[9]方志刚.虚拟现实系统的开发环境与应用领域[J].计算机世界报,1995,
[10]兰兵.http://www.arting365.com/vision/discourse/2006-04-20
[11]http://www.wenloo.com/WenLooPage262688-7.htm
[12]国内外虚拟现实技术发展现状和发展趋势的技术报告[R],http://www.yuloo.com/netedu/net-ksdt/2002-02/1063157081.htm12002.02/2006.02
[13]Chris Marrin,Bruce Campbell.21天学通VRML[M](,王海燕等译).北京:人民邮电出版社,1998
[14]虚拟无忌:http://www.86vr.com
[15]JAVA天堂.http://www.javah.net/
[16]林冬梅.X3D:新一代WEB交互式三维图形规范[J].计算机系统应用,2004,10:23-25
[17]刘华峰,党岗,金士尧.X3D:新一代面向Web的交互式三维图形规范[J].系统仿真学报,2001,13:199-203
[18]高永惠.3种Web三维交互技术的分析与比较[J].广东医学院学报,2004,22(3):190-191.
[19]肖唬,黄晓萍.Web3D技术及新一代标准X3D[J].计算机与现代化,2003,10:39-42
[20]http://www.parallelgraphics.com/products/vrmlpad
[21]阳化冰,刘忠丽,刘忠轩,等.虚拟现实构造语言VRML[M].北京:北京航空航天大学出版社,2000
[22]X3D-Edit for Extensible 3D(X3D).http://17de.com/x3d/x3d-edit.html 2004/2006.03
[23]吴北新.虚拟现实建模语言VRML[M].北京:高等教育出版社,2004
[24]86vr翻译.BS Contact VRML/X3D 6.2 新功能介绍整理(一)[EB/OL].http://www.86vr.com
[25]Airey J M.Rohlf J H.Visibility preprocessing for interactive walk Brooks F P,towards image realism with interactive updates rates in complex virtual building environment[J].computer graphics,1990,24(1):41-50
[26]Teller S,Sequin C.Visibility preprocessing for interactive walkthroughs[J].Computer Graphics,1991,25(1):61-69
[27]柯育龙.关于VRML的虚拟校园建模的研究[D]:[硕士学位论文].成都:西南交通大学,2006
[28]黄建龙,罗寅峰.基于VRML虚拟设计的研究与应用[J].机械研究与应用,2004,17(4):26-27
[29]陈泰弘.以多视景虚拟实境建立网际三维地理信息系统之研究[D]:[硕士学位论文].广州:中山大学海洋环境及工程研究所,2001
[30]万剑华,郑红霞,盛辉,等.基于VRML的虚拟校园中的三维景观建模[J].计算机应用与软件,2004,21(7):82-84
[31]谢永智,徐长生.虚拟建筑室内实时漫游[J].武汉理工大学学报,2002,26(5):663-666
[32]Lin,M,D.Manocha,J.Cohen,and S.Gottschalk.CollisionDetection:Algorithms and Applications,in J.-P.Lanmond,and M.Overmars(Eds.),in Proceedings of Algorithms for Robotics Motion and Manipulation,1996.129-142
[33]Airey,J.,J.Rohlf,and F.Brooks,Jr.Towards Image Realism with Interactive Update Rate in Complex Virtual Vuilding Environments[J].Computer Graphics,1990,24(2):41-50
[34]王江春,罗建强,张申生.虚拟现实场景中提取2D导航地图的方法研究[J].系统仿真学报,2004,16(7):1499-1515
[35]黄心渊.虚拟现实技术及应用[M].北京:北京科学出版社,1999
[36]李振波,孟祥旭,向辉.复杂虚拟场景构造及交互漫游实现研究工作[J].系统仿真学报,2002,14(9):20-23
[37]蒙艳,余明晖,李再进.基于VRML的城市住宅小区交互式仿真系统[J].计算机工程,2005,31(8):221-223
[38]丁妹,胡志秋.虚拟建筑模型场景漫游系统[J].计算机技术及应用,2005,1:46-47
[2]刘尚勤,顾耀林.基于X3D构建高效的虚拟场景[J].计算机工程与设计,2006,27(2):303-306
[3]柳飞.建筑小区漫游系统及实现方法[J].山西建筑,2004,30(3):135-136
[4]傅晟,彭群生.一个桌面型虚拟建筑环境实时漫游系统的设计与实现[J].计算机学报,1998,21(9):793-799
[5]中国虚拟技术论坛.http://www.cnvrmt.org.
[6]张帆.房地产网上销售及虚拟漫游系统中若干关键技术的应用研究[D]:[硕士学学位论文].江苏:浙江大学,2003
[7]丘京松.虚拟现实技术在教育中的应用[EB/OL].http://www.cmr.com.cn/distance/wangluo/013.htm
[8]张枝军.教学实践中虚拟现实的实现途径[J].无锡商业职业技术学院学报,2005,5(1):71-73
[9]方志刚.虚拟现实系统的开发环境与应用领域[J].计算机世界报,1995,
[10]兰兵.http://www.arting365.com/vision/discourse/2006-04-20
[11]http://www.wenloo.com/WenLooPage262688-7.htm
[12]国内外虚拟现实技术发展现状和发展趋势的技术报告[R],http://www.yuloo.com/netedu/net-ksdt/2002-02/1063157081.htm12002.02/2006.02
[13]Chris Marrin,Bruce Campbell.21天学通VRML[M](,王海燕等译).北京:人民邮电出版社,1998
[14]虚拟无忌:http://www.86vr.com
[15]JAVA天堂.http://www.javah.net/
[16]林冬梅.X3D:新一代WEB交互式三维图形规范[J].计算机系统应用,2004,10:23-25
[17]刘华峰,党岗,金士尧.X3D:新一代面向Web的交互式三维图形规范[J].系统仿真学报,2001,13:199-203
[18]高永惠.3种Web三维交互技术的分析与比较[J].广东医学院学报,2004,22(3):190-191.
[19]肖唬,黄晓萍.Web3D技术及新一代标准X3D[J].计算机与现代化,2003,10:39-42
[20]http://www.parallelgraphics.com/products/vrmlpad
[21]阳化冰,刘忠丽,刘忠轩,等.虚拟现实构造语言VRML[M].北京:北京航空航天大学出版社,2000
[22]X3D-Edit for Extensible 3D(X3D).http://17de.com/x3d/x3d-edit.html 2004/2006.03
[23]吴北新.虚拟现实建模语言VRML[M].北京:高等教育出版社,2004
[24]86vr翻译.BS Contact VRML/X3D 6.2 新功能介绍整理(一)[EB/OL].http://www.86vr.com
[25]Airey J M.Rohlf J H.Visibility preprocessing for interactive walk Brooks F P,towards image realism with interactive updates rates in complex virtual building environment[J].computer graphics,1990,24(1):41-50
[26]Teller S,Sequin C.Visibility preprocessing for interactive walkthroughs[J].Computer Graphics,1991,25(1):61-69
[27]柯育龙.关于VRML的虚拟校园建模的研究[D]:[硕士学位论文].成都:西南交通大学,2006
[28]黄建龙,罗寅峰.基于VRML虚拟设计的研究与应用[J].机械研究与应用,2004,17(4):26-27
[29]陈泰弘.以多视景虚拟实境建立网际三维地理信息系统之研究[D]:[硕士学位论文].广州:中山大学海洋环境及工程研究所,2001
[30]万剑华,郑红霞,盛辉,等.基于VRML的虚拟校园中的三维景观建模[J].计算机应用与软件,2004,21(7):82-84
[31]谢永智,徐长生.虚拟建筑室内实时漫游[J].武汉理工大学学报,2002,26(5):663-666
[32]Lin,M,D.Manocha,J.Cohen,and S.Gottschalk.CollisionDetection:Algorithms and Applications,in J.-P.Lanmond,and M.Overmars(Eds.),in Proceedings of Algorithms for Robotics Motion and Manipulation,1996.129-142
[33]Airey,J.,J.Rohlf,and F.Brooks,Jr.Towards Image Realism with Interactive Update Rate in Complex Virtual Vuilding Environments[J].Computer Graphics,1990,24(2):41-50
[34]王江春,罗建强,张申生.虚拟现实场景中提取2D导航地图的方法研究[J].系统仿真学报,2004,16(7):1499-1515
[35]黄心渊.虚拟现实技术及应用[M].北京:北京科学出版社,1999
[36]李振波,孟祥旭,向辉.复杂虚拟场景构造及交互漫游实现研究工作[J].系统仿真学报,2002,14(9):20-23
[37]蒙艳,余明晖,李再进.基于VRML的城市住宅小区交互式仿真系统[J].计算机工程,2005,31(8):221-223
[38]丁妹,胡志秋.虚拟建筑模型场景漫游系统[J].计算机技术及应用,2005,1:46-47