Sketch-Based Poisson Mesh Editing

In this paper,we propose a sketch-based Poisson mesh editing approach that inherits advantages from Sketch-based freeform deformation and PDE-based methods.Sketch-based free-form deformation methods have the advantage that they are simple,intuitive and easy-to-use,while PDE-based methods can keep geometry details when models are being deformed.Although the sketch user interface is basically 2-dimensional,we extend this editing metaphor to 3D by allowing the target sketch to lie on the viewing plane different to that contains the reference sketch.At the same time,a complete set of deformation operators are presented based on 3D sketches.These deformation operators determine local transforms from the reference sketch and the target sketch and use these local transforms to generate the desired gradient fields which finally guide the reconstructive process of the deformed model.We demonstrate the efficiency and effectiveness of our algorithm with comprehensive editing results.