Proceedings. Visualization '97 (Cat. No. 97CB36155)最新文献_第5页

Efficient subdivision of finite-element datasets into consistent tetrahedra 将有限元数据集有效地细分为一致的四面体

Proceedings. Visualization '97 (Cat. No. 97CB36155) Pub Date : 1997-10-01 DOI: 10.1109/VISUAL.1997.663885

G. Albertelli, R. Crawfis

引用次数: 26

Application-controlled demand paging for out-of-core visualization 用于核外可视化的应用程序控制的需求分页

Proceedings. Visualization '97 (Cat. No. 97CB36155) Pub Date : 1997-10-01 DOI: 10.1109/VISUAL.1997.663888

M. Cox, D. Ellsworth

{"title":"Application-controlled demand paging for out-of-core visualization","authors":"M. Cox, D. Ellsworth","doi":"10.1109/VISUAL.1997.663888","DOIUrl":"https://doi.org/10.1109/VISUAL.1997.663888","url":null,"abstract":"In the area of scientific visualization, input data sets are often very large. In visualization of computational fluid dynamics (CFD) in particular, input data sets today can surpass 100 Gbytes, and are expected to scale with the ability of supercomputers to generate them. Some visualization tools already partition large data sets into segments, and load appropriate segments as they are needed. However, this does not remove the problem for two reasons: 1) there are data sets for which even the individual segments are too large for the largest graphics workstations, 2) many practitioners do not have access to workstations with the memory capacity required to load even a segment, especially since the state-of-the-art visualization tools tend to be developed by researchers with much more powerful machines. When the size of the data that must be accessed is larger than the size of memory, some form of virtual memory is simply required. This may be by segmentation, paging, or by paged segments. The authors demonstrate that complete reliance on operating system virtual memory for out-of-core visualization leads to egregious performance. They then describe a paged segment system that they have implemented, and explore the principles of memory management that can be employed by the application for out-of-core visualization. They show that application control over some of these can significantly improve performance. They show that sparse traversal can be exploited by loading only those data actually required.","PeriodicalId":225083,"journal":{"name":"Proceedings. Visualization '97 (Cat. No. 97CB36155)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115089845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 408

The VSBUFFER: visibility ordering of unstructured volume primitives by polygon drawing 通过多边形绘制的非结构化体基元的可见性排序

Proceedings. Visualization '97 (Cat. No. 97CB36155) Pub Date : 1997-10-01 DOI: 10.1109/VISUAL.1997.663853

R. Westermann, T. Ertl

引用次数: 30

ROAMing terrain: Real-time Optimally Adapting Meshes 漫游地形:实时优化适应网格

Proceedings. Visualization '97 (Cat. No. 97CB36155) Pub Date : 1997-10-01 DOI: 10.1109/VISUAL.1997.663860

M. Duchaineau, M. Wolinsky, David E. Sigeti, Mark C. Miller, C. Aldrich, M. Mineev-Weinstein

{"title":"ROAMing terrain: Real-time Optimally Adapting Meshes","authors":"M. Duchaineau, M. Wolinsky, David E. Sigeti, Mark C. Miller, C. Aldrich, M. Mineev-Weinstein","doi":"10.1109/VISUAL.1997.663860","DOIUrl":"https://doi.org/10.1109/VISUAL.1997.663860","url":null,"abstract":"Terrain visualization is a difficult problem for applications requiring accurate images of large datasets at high frame rates, such as flight simulation and ground-based aircraft testing using synthetic sensor simulation. On current graphics hardware, the problem is to maintain dynamic, view-dependent triangle meshes and texture maps that produce good images at the required frame rate. We present an algorithm for constructing triangle meshes that optimizes flexible view-dependent error metrics, produces guaranteed error bounds, achieves specified triangle counts directly and uses frame-to-frame coherence to operate at high frame rates for thousands of triangles per frame. Our method, dubbed Real-time Optimally Adapting Meshes (ROAM), uses two priority queues to drive split and merge operations that maintain continuous triangulations built from pre-processed bintree triangles. We introduce two additional performance optimizations: incremental triangle stripping and priority-computation deferral lists. ROAM's execution time is proportional to the number of triangle changes per frame, which is typically a few percent of the output mesh size; hence ROAM's performance is insensitive to the resolution and extent of the input terrain. Dynamic terrain and simple vertex morphing are supported.","PeriodicalId":225083,"journal":{"name":"Proceedings. Visualization '97 (Cat. No. 97CB36155)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125325119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 860

Visualizing the behaviour of higher dimensional dynamical systems 可视化高维动力系统的行为

Proceedings. Visualization '97 (Cat. No. 97CB36155) Pub Date : 1997-10-01 DOI: 10.1109/VISUAL.1997.663867

R. Wegenkittl, H. Loffelmann, E. Groller

引用次数: 96

Auralization of streamline vorticity in computational fluid dynamics data 计算流体动力学数据中流线涡度的可视化

Proceedings. Visualization '97 (Cat. No. 97CB36155) Pub Date : 1997-10-01 DOI: 10.1109/VISUAL.1997.663856

C. Volpe, E. Glinert

引用次数: 2

Dynamic color mapping of bivariate qualitative data 二元定性数据的动态颜色映射

Proceedings. Visualization '97 (Cat. No. 97CB36155) Pub Date : 1997-10-01 DOI: 10.1109/VISUAL.1997.663874

P. Rheingans

引用次数: 17

Instructional software for visualizing optical phenomena 可视化光学现象的教学软件

Proceedings. Visualization '97 (Cat. No. 97CB36155) Pub Date : 1997-10-01 DOI: 10.1109/VISUAL.1997.663918

D. Banks, J. Foley, Kiril Vidimce, M. Kiu

引用次数: 4

Visualization of plant growth 植物生长可视化

Proceedings. Visualization '97 (Cat. No. 97CB36155) Pub Date : 1997-10-01 DOI: 10.5555/266989.267125

J. J. Loomis, Xiuwen Liu, Zhaohua Ding, K. Fujimura, M. Evans, Hideo Ishikawa

引用次数: 6

Image synthesis from a sparse set of views 从一组稀疏视图合成图像

Proceedings. Visualization '97 (Cat. No. 97CB36155) Pub Date : 1997-10-01 DOI: 10.1109/VISUAL.1997.663892

Qian Chen, G. Medioni

引用次数: 18