Dear Andy and all other listers I would like to ask... Why does Mapinfo carry out circular buffering. Quite often I want to create a catchment area based on a certain boundary plus 0.5 km for example. Often my initial polygon is quite complex, but the resultant buffer is always a rather poor approximation (despite using a range of segments per circle). I am sure (if memory serves me right) Arc/Info does the job much more accurately! Curious in Anticipation Jon Bloor Andy wrote: > Do you know of any good web sites covering > computational geometry / GIS algorithms. I am > interested in polygon/polygon intersection and > buffering but not circular buffering i.e. if you have > a polygon I need an algorithm that creates a buffer of > equal size all round the polygon so that the buffer > mimicks the shape of the polygon. regards,andrew bailey -- This message is confidential. It may also be legally privileged. It is intended solely for the stated addressee(s) and access to it by anyone else is unauthorised. If you have received this message in error, you must not disclose, copy, circulate or in any other way use or rely on the information contained in this message. Such unauthorised use may be unlawful. If you have received this message in error, please delete it immediately and advise us by return e-mail to the above address.
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