Vectoring parts of a photographic image is going to be more difficult than the example I lnked.
I think you'l have to zoom the vertices in the polygon yourself, but you might try using some drawing transformation methods - you may have to dig deeper into OpenGL. Now that you've given more problem details, maybe polygons isn't the only approach. Are you trying to map the touch coordinates to a certain shade in the man's arm, or to a particlar part of the arm? In the latter case, it might work out to just use points for the center of each part (bicep, tricep, elbow, etc.) and use an algorithm based on the distances of the centers to the touch point. This may involve additional geometry skills, such as dividing an area into regions based on such centroids. However, sometimes looking at a problem from a different perwspective leads to a better solution. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
