Given an Envelope is there a way in which i can select
features based on geometric distances between them.
Take san deigo streets for example
the data 40 mb in size.( shp file + dbf)
reading all tht data , converting it into SVG and thn
rendering it takes too much time. (Web based system)
i want to reduce this.
i want to base this on envelopes and scales.
lets say the user asks for san deigo map i want to
initially pull only those features such tht the
minimum distance between any 2 fetures is say 5km.
later if the user zooms in i can pull more fetures by
reducing the distance to 2 km and so on .
so tht the user sees more details as he goes on
zooming into his area of interest and not all in 1 go.
this is really important for loaction based services.
is there a way i can do this based on filters??
somehow people in this group dont like filters..
i had posted a filter query earlier also with no
ny help appreciated.
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