A system for interactive mesh editing, comprising: - an image data interface for accessing image data , the image data representing a three-dimensional image showing an anatomical structure; - a processor configured for: i) obtaining mesh data , the mesh data defining a mesh which has been previously mapped to the three-dimensional image for segmenting the anatomical structure, ii) generating a view of the three-dimensional image and said mapped mesh, wherein said generating is based on one or more viewing parameters defining the view, and iii) generating view data representing the view for display on a display ; - a user input interface for receiving user input data indicative of an editing action to be applied to a part of the mesh shown in the view and selected by the user; - wherein the processor is configured for establishing the one or more viewing parameters based on a local orientation of the selected part of the mesh upon receiving the user input data indicative of the editing action, wherein the selected part of the mesh comprises a set of mesh surface elements, and wherein the processor is configured for determining the local orientation of the selected part of the mesh by applying a statistical function to the normal vectors of the mesh surface elements from the set of mesh surface elements, - wherein the processor is configured for establishing the one or more viewing parameters to define the view to intersect the three-dimensional image substantially orthogonally to the selected part of the mesh, thereby establishing an orthogonal view , and - wherein the processor is configured for, from an initial view showing the selected part of the mesh, switching to the orthogonal view upon receiving the user input data indicative of the editing action. - an image data interface for accessing image data , the image data representing a three-dimensional image showing an anatomical structure; - a processor configured for: i) obtaining mesh data , the mesh data defining a mesh which has been previously mapped to the three-dimensional image for segmenting the anatomical structure, ii) generating a view of the three-dimensional image and said mapped mesh, wherein said generating is based on one or more viewing parameters defining the view, and iii) generating view data representing the view for display on a display ; i) obtaining mesh data , the mesh data defining a mesh which has been previously mapped to the three-dimensional image for segmenting the anatomical structure, ii) generating a view of the three-dimensional image and said mapped mesh, wherein said generating is based on one or more viewing parameters defining the view, and iii) generating view data representing the view for display on a display ; - a user input interface for receiving user input data indicative of an editing action to be applied to a part of the mesh shown in the view and selected by the user; - wherein the processor is configured for establishing the one or more viewing parameters based on a local orientation of the selected part of the mesh upon receiving the user input data indicative of the editing action, wherein the selected part of the mesh comprises a set of mesh surface elements, and wherein the processor is configured for determining the local orientation of the selected part of the mesh by applying a statistical function to the normal vectors of the mesh surface elements from the set of mesh surface elements, - wherein the processor is configured for establishing the one or more viewing parameters to define the view to intersect the three-dimensional image substantially orthogonally to the selected part of the mesh, thereby establishing an orthogonal view , and - wherein the processor is configured for, from an initial view showing the selected part of the mesh, switching to the orthogonal view upon receiving the user input data indicative of the editing action. <EOS>