Drawing and animation using skeletal strokes
Drawing and animation using skeletal strokes
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DOI：
10.1145/192161.192186
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发表时间：
1994-07
期刊：
影响因子：
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通讯作者：
S. Hsu;Irene H. H. Lee-Irene-H.-H.-Lee-2116041999
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文献类型：
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作者：
S. Hsu;Irene H. H. Lee-Irene-H.-H.-Lee-2116041999
使用骨架笔画是一种新的矢量图形实现，用画笔和笔画隐喻任意图片为“墨”。它基于一个由任意路径定义的理想化的二维变形模型，它作为一般的笔触替换的表现力和交互使用的效率使它适合作为绘图程序以及窗口和页面描述系统的基本绘图图元。本文介绍了我们的绘图和动画系统，“Skeleton绘制”，基于骨骼笔画。用它制作的各种图片说明了该系统在风格图片创作中的有效性，并讨论了在处理高阶笔划和递归笔划中的子笔划时所作的决定。骨架笔画框架中的通用锚定机制允许将任意图片变形抽象为单个笔画。解释了它对分段连续锚定的推广以及剪切角和行程宽度的锚定。我们展示了这种机制如何使我们能够建立强大的伪3D模型，这是特别有用的生产2 1/2 D卡通图纸和动画。动画序列已经说明的想法，包括矢量图形为基础的运动模糊技术。
The use of skeletal strokes is a new vector graphics realization of the brush and stroke metaphor using arbitrary pictures as “ink”. It is based on an idealized 2D deformation model defined by an arbitrary path. Its expressiveness as a general brush stroke replacement and efficiency for interactive use make it suitable as a basic drawing primitive in drawing programs as well as windowing and page description systems. This paper presents our drawing and animation system, “Skeletal Draw”, based on skeletal strokes. The effectiveness of the system in stylish picture creation is illustrated with various pictures made with it. Decisions made in the handling of sub-strokes in a higher order stroke and recursive strokes are discussed. The general anchoring mechanism in the skeletal stroke framework allows any arbitrary picture deformation to be abstracted into a single stroke. Its extension to piecewise continuous anchoring and the anchoring of shear angle and stroke width are explained. We demonstrated how this mechanism allows us to build up powerful pseudo-3D models which are particularly useful in the production of 2 1/2 D cartoon drawings and animation. Animation sequences have been made to illustrate the ideas, including a vector graphics based motion blurring technique.