[UMN_MAPSERVER-USERS] Chopping a map with a grid.

[Rodrigo Del C. Andrade]

Hi dear list.         I am trying to implement in java mapscript an application that draws on-the-fly contours around areas with a high ocurrence rate of a given event, something like the topics discussed in here: http://article.gmane.org/gmane.comp.gis.mapserver.user/17924.     I understand it is not easy, so I am taking my steps one at a time. Being quite new to GIS programming, I am going trough the usual misteps.     My first problem is actually dividing the area into subzones where I can count the ocurrences of said events inside each rectangle to feed the statistic analysis. I have tried using a graticule item on a line layer, but I cant seem to find a query method that will give me something I can work with (boundaries, polygons, the works), even though the grid has been drawn quite nicelly.     I understand I probably missed completelly the point of a GRID object inside a LINE type layer, but is there some built in way (trough grid or any other method) to chop a layer in equal rectangles so I can iterate trough each of them checking for ocorrences?     Thanks a lot. -- Rodrigo Del C. Andrade Estagiário Nível Superior SIC - SSE - Soluções Segurança Pública DÍGITRO TECNOLOGIA E-mail: [EMAIL PROTECTED] Fone: +55 48 3281-7390 / +55 48 3281-7000 Fax: +55 48 3281-7299 Site: www.digitro.com