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Mark C explained you how to store image in DB but actually, most of the time, there is absolutely no need to store image content (as blob) in a database. I would give you the advice of storing it as just a file and store the path into the database. You, then, just have to create a new varchar field containing a filepath like /images/user/my_image.png This ...


This sort of thing is what humans are good at but computers aren't good at. One approach that may help is sorting the points in clockwise order, this will give you mostly what you want but will still need some manual intervention with a software package like ArcGis or QGIS. In essence find the leftest point (lowest X), if two are colinear then the one with ...

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