Re: [OpenMap Users] A few questions on Openmap

You might want to look at www.manifold.net. Expensive as just a file
converter. Cheap if you want a full GIS.

All the best.

On Mon, 2004-03-15 at 13:35, Don Dietrick wrote:
> Hi Steve,
>
> On Mar 4, 2004, at 9:02 PM, h0119153 wrote:
>
> > Hello everybody,
> >
> > I would like to know:
> > 1) I am using SimpleHttpImageServer to display a map by servlet, its
> > image
> > size should be default, then what is the scale between the pixel and
> > the real
> > Lan,Lon? I working working on the Pan function.
>
> That depends on the projection.
>
> > 2) Is there any converter converting e00 to shp?
>
> Not that I know of.
>
> >
> > 3) I know that there is a e00 layer in openmap4.6, How to use it to
> > display
> > e00 data on servlet?
>
> You would add an E00Layer to the MapRequestHandler that a servlet uses,
> probably by adding an entry to the openmap.properties file.
>
> >
> > 4) I need to use openmap to handle a large area. And this area are
> > seperated
> > into sub-areas.(I have a set of sub-area maps) I want the servlet to
> > determine
> > which sub-area map to be loaded when user click on a location on that
> > large
> > map(with larger scale and less detail) which belongs to the right
> > sub-area.
> >
> > I know that Openmap can handle files which are different layers of a
> > single
> > map, but can it support a number of maps which are parts of a larger
> > size map?
>
> This really depends on the data type. There really isn't a mechanism
> like this for e00 files, but you could adapt a multiple file mechanism
> similar to the one used in the MultiShapeLayer.
>
> For a lot of data, you would probably want to start thinking about
> using a database with a spatial query capability to handle multiple
> data files. MySQL, PostGRES with PostGIS, Oracle all do this.
>
>
> - Don
>
> > Please correct me if my approach is wrong. And do anybody know how I
> > can
> > implenment it?
> >
> > Sorry for asking so many questions.
> > Thank you for your kind attention and help.
> >
> > Steve
> >
> >
> > --
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> >
>
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