Abstract This special issue contains extended and revised versions of the best papers presented at the 6th Smart Tools and Applications in Graphics (STAG 2019), held in Cagliari, on 14–15 November, 2019. The three selected papers span different visual computing domains: (i) a framework for fully interactive non-linear spatio-temporal exploration of massive time-varying rectilinear scalar volumes on commodity platforms, (ii) a visualization system for reviewers for identifying researchers working on a certain topic, analyzing their contributions over time, and highlighting co-authorship relations and conflicts, (iii) a VR environment for editing and proofreading medial axis representations of nanoscale brain cell morphologies.

中文翻译：

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图形智能工具和应用特别部分的前言 (STAG 2019)

摘要 本期特刊包含 2019 年 11 月 14 日至 15 日在卡利亚里举行的第 6 届图形智能工具和应用程序 (STAG 2019) 上最佳论文的扩展和修订版本。三篇入选论文涵盖了不同的视觉计算领域： (i) 在商品平台上对大量时变直线标量进行完全交互式非线性时空探索的框架，(ii) 一个可视化系统，供审阅者识别研究某个主题的研究人员，分析他们随时间的贡献， (iii) 用于编辑和校对纳米级脑细胞形态的中轴表示的 VR 环境。