Techniques are disclosed for tracing a vector image over at least a part of a raster image. One or more edges of the raster image (e.g., bitmap or photograph) are identified, and an edge model is generated. The edge model is a vector image including a plurality of Bezier curves that overlap with the edges of the raster image. One or more user inputs are received, which identify a first and second path point on the edge model. A subset of the plurality of Bezier curves that are between the first and second path points and on the edge model are selected. The subset of the plurality of Bezier curves are displayed, without displaying Bezier curves that are not within the subset. In an example, the subset of the Bezier curves traces edges of a section of the raster image between the first and second path points.