摘要: We present ILoveSketch, a 3D curve sketching system that captures some of the affordances pen and paper for professional designers, allowing them to iterate directly on concept models. The coherently integrates existing techniques sketch-based interaction with number novel enhanced features. Novel contributions include automatic view rotation improve sketchability, an axis widget sketch surface selection, implicitly inferred changes between techniques. also ideas such as virtual sketchbook, simplified 2D navigation, multi-stroke NURBS creation, cohesive gesture vocabulary. An evaluation by designer shows potential our deployment within real design process.