In recent years, more and more researchers have reflected on the undervaluation of emotion in data visualization and highlighted the importance of considering human emotion in visualization design. Meanwhile, an increasing number of studies have been conducted to explore emotion-related factors. However, so far, this research area is still in its early stages and faces a set of challenges, such as the unclear definition of key concepts, the insufficient justification of why emotion is important in visualization design, and the lack of characterization of the design space of affective visualization design. To address these challenges, first, we conducted a literature review and identified three research lines that examined both emotion and data visualization. We clarified the differences between these research lines and kept 109 papers that studied or discussed how data visualization communicates and influences emotion. Then, we coded the 109 papers in terms of how they justified the legitimacy of considering emotion in visualization design (i.e., why emotion is important) and identified five argumentative perspectives. Based on these papers, we also identified 61 projects that practiced affective visualization design. We coded these design projects in three dimensions, including design fields (where), design tasks (what), and design methods (how), to explore the design space of affective visualization design.

翻译：近年来，越来越多的研究者反思了数据可视化领域中对情感因素的忽视，并强调了在可视化设计中考虑人类情感的重要性。与此同时，越来越多的研究开始探索与情感相关的因素。然而，迄今为止，这一研究领域仍处于早期阶段，并面临一系列挑战，例如关键概念定义不清、未能充分论证为何情感在可视化设计中重要，以及缺乏对情感可视化设计空间的系统刻画。为应对这些挑战，我们首先进行了文献综述，识别出三条同时考察情感与数据可视化的研究脉络。我们厘清了这些研究脉络之间的差异，并筛选出109篇研究或探讨数据可视化如何传达及影响情感的论文。随后，我们对这109篇论文进行了编码分析，重点关注其如何论证在可视化设计中考虑情感的正当性（即为何情感重要），并归纳出五个论证视角。基于这些文献，我们还识别出61个实践情感可视化设计的项目。我们从三个维度对这些设计项目进行了编码，包括设计领域（何处）、设计任务（什么）以及设计方法（如何），以探索情感可视化设计的设计空间。