1. A computer-implemented method of generating slices of a three-dimensional (3D) body in a 3D solid modeling application, comprising: acquiring the 3D body in the 3D solid modeling application; generating, in the 3D modeling application on the 3D body, one or more slice geometries, wherein each of the one or more slice geometries defines a respective slice cutting surface; based on, and for each of the one or more slice geometries, slicing, in the 3D solid modeling application, the 3D body through the surface of the 3D body, to create one or more respective zero-depth slices, wherein each zero-depth slice comprises an outline of the 3D body where it intersects with the respective slice cutting surface; and generating a single slice model representation that comprises a simultaneous representation of all of the one or more respective zero-depth slices.