The emergence of high performance 3D graphics cards has opened the way to PC clusters for high performance multi- display environment. In order to exploit the rendering ability of PC clusters, we should design appropr...The emergence of high performance 3D graphics cards has opened the way to PC clusters for high performance multi- display environment. In order to exploit the rendering ability of PC clusters, we should design appropriate parallel rendering algorithms and parallel graphics library interfaces. Due to the rapid development of Direct3D, we bring forward DPGL, the Direct3D9-based parallel graphics library in D3DPR parallel rendering system, which implements Direct3D9 interfaces to support existing Direct3D9 application parallelization with no modification. Based on the parallelism analysis of Direct3D9 rendering pipeline, we briefly introduce D3DPR parallel rendering system. DPGL is the fundamental component of D3DPR. After presenting DPGL three layers architecture, we discuss the rendering resource interception and management. Finally, we describe the design and implementation of DPGL in detail, including rendering command interception layer, rendering command interpretation layer and rendering resource parallelization layer.展开更多
We aimed at the release and dynamic management of CAD network graphics library (NGL). The characteristics of realization on network of CAD graphics are analysed, while the existing problems of the presenting share met...We aimed at the release and dynamic management of CAD network graphics library (NGL). The characteristics of realization on network of CAD graphics are analysed, while the existing problems of the presenting share methods of graphics file are also discussed. Release and dynamic management are accomplished with the B/S combined with C/S as well as the file organization based on attribute information, which have essential practical sense to the establishment of CAD NGL, share and cooperation in tech-design as well as the distance education of engineering graphics.展开更多
in this paper we present a distributed graphics processing support library called DGPSL. Itis a facility for implementing graphics applications which repuire expensive computing power on a network of workstations- Use...in this paper we present a distributed graphics processing support library called DGPSL. Itis a facility for implementing graphics applications which repuire expensive computing power on a network of workstations- Users may use it to implernent distributed graphics application just as use anordinary library- DGPSI- contains a sequencial graphics library (SGL) and a parallel graphics library(PGL). When users call graphics rountines in PGL, DGPSL finds more than one idle rnachines andexecute the specified algorithm in parallel. The DGPSL is implemented on a heterogenous network.With DGPSL, we have developed a distributed solid modeling sysytem and a distributed volurne ren-dering system.展开更多
The managing of information and data between researching groups is critical to the success of any exploration or development project. Poor communication and data sharing between technological departments can result in...The managing of information and data between researching groups is critical to the success of any exploration or development project. Poor communication and data sharing between technological departments can result in incomplete interpretations or inaccurate drilling decisions making. According to the statistic results, the time cost in retrieving and collecting data will occupy more than 70 % percent of the total working time of technicians during the petroleum geological researching. This paper is a summary of the characteristics and the development of the Data & Graphic management system for oil & gas exploration.After that the system's application in oil & gas exploration and researching, which has improved the quality and accurateness of mapping has been summarized in detail. The application of the system mentioned above has proved to be very successful in Daqing oilfield.展开更多
基金This work was supported by National Basic Research Program of China (No.2002CB312105)Key National Natural Science Foundation of China Project on Digital Olympic Museum(No.60533080).
文摘The emergence of high performance 3D graphics cards has opened the way to PC clusters for high performance multi- display environment. In order to exploit the rendering ability of PC clusters, we should design appropriate parallel rendering algorithms and parallel graphics library interfaces. Due to the rapid development of Direct3D, we bring forward DPGL, the Direct3D9-based parallel graphics library in D3DPR parallel rendering system, which implements Direct3D9 interfaces to support existing Direct3D9 application parallelization with no modification. Based on the parallelism analysis of Direct3D9 rendering pipeline, we briefly introduce D3DPR parallel rendering system. DPGL is the fundamental component of D3DPR. After presenting DPGL three layers architecture, we discuss the rendering resource interception and management. Finally, we describe the design and implementation of DPGL in detail, including rendering command interception layer, rendering command interpretation layer and rendering resource parallelization layer.
文摘We aimed at the release and dynamic management of CAD network graphics library (NGL). The characteristics of realization on network of CAD graphics are analysed, while the existing problems of the presenting share methods of graphics file are also discussed. Release and dynamic management are accomplished with the B/S combined with C/S as well as the file organization based on attribute information, which have essential practical sense to the establishment of CAD NGL, share and cooperation in tech-design as well as the distance education of engineering graphics.
文摘in this paper we present a distributed graphics processing support library called DGPSL. Itis a facility for implementing graphics applications which repuire expensive computing power on a network of workstations- Users may use it to implernent distributed graphics application just as use anordinary library- DGPSI- contains a sequencial graphics library (SGL) and a parallel graphics library(PGL). When users call graphics rountines in PGL, DGPSL finds more than one idle rnachines andexecute the specified algorithm in parallel. The DGPSL is implemented on a heterogenous network.With DGPSL, we have developed a distributed solid modeling sysytem and a distributed volurne ren-dering system.
文摘The managing of information and data between researching groups is critical to the success of any exploration or development project. Poor communication and data sharing between technological departments can result in incomplete interpretations or inaccurate drilling decisions making. According to the statistic results, the time cost in retrieving and collecting data will occupy more than 70 % percent of the total working time of technicians during the petroleum geological researching. This paper is a summary of the characteristics and the development of the Data & Graphic management system for oil & gas exploration.After that the system's application in oil & gas exploration and researching, which has improved the quality and accurateness of mapping has been summarized in detail. The application of the system mentioned above has proved to be very successful in Daqing oilfield.
