Re: Re: [Geotools-gt2-users] Simple map with points

Mon, 26 Sep 2005 00:56:05 -0700

 
Well The Capabilites of geotools is high.
For  your requirements I would suggest teh Following.

Use a DataStore for getting the Data.
This dataStore would return a FeatureCollection Object for you.
Create your own UI Class which Would generate the Output in formats u desire.Eg. jpg,svg or tiffs.
This is simple to be done using the FeatureCollections and Feature Object.
For eg ..Draw Line on the Graphics Object when the Feature has Default 
geometry as line.Draw a Cirle with some radius for Points and so on ..

Geotools provides a Platform for developing GIS Based Applications.
For the Panel Part u can look into the StyledMapPane Object Which Does the rendering of Layers based on the Input Data.

Read the Java Docs for Any further Information.

All Jar files are not needed by the Application.Jar files are selected based on the Application Needs.
Read the Dependency Documents of geo-tools for further Information.


Hope this Will help.

Bye.



On Fri, 23 Sep 2005 Chris Holmes wrote :
>On Fri, 23 Sep 2005, Sami Dalouche wrote:
>
> > Hi,
> >
> > thanks for your answer,
> >
> > I've looked at uDig, but I need to use GeoTools inside my application, not as a
> > viewer.
> > I need to dynamically map points depending on my application's logic...
> >
> > I looked at the tutorials and demos. So far :
> > - I get a basic window, that loads an ESRI Shapefile.
> > The ESRI Shapefile is bundled with a .prj, so I believe that I can now draw
> > latitudes / longitudes on top of it.
> >
> > Can anyone provide me a pointer for how to do this ?
>If you want to draw lat/longs you may try using a graticule.  There is one
>in jira that we've been bad about incorporating into geotools, but it's
>available in jira. http://jira.codehaus.org/browse/GEOT-600  I havven't
>tried it, and it'd be nice to get feedback if ou do use it.  But I think
>it takes a set of spacings (like lat/long) and generates the grid lines as
>a set of features.
>
>Chris
>
> > thanks,
> > Sami Dalouche
> >
> > Quoting Jody Garnett <[EMAIL PROTECTED]>:
> >
> > > Sami Dalouche wrote:
> > >
> > > >Hi,
> > > >
> > > >Geotools seems to be a very powerful and fancy Java library :) However,
> > > getting
> > > >started with it does not seem such an easy task..
> > > >So, I'm posting here in the hope someone will have time to give me some
> > > >guidelines.
> > > >
> > > >Here's what I need to do :
> > > >- Have Geotools display a map (of the world if possible, but I'll revert to
> > > >Canada if it's too hard to find such a map). I should be able to get the
> > > ESRI
> > > >shapefile for Canada, but any indication about how to get maps under other
> > > >formats is welcome. I'm actually looking for something nice-looking, that's
> > > >pretty much all I'm interested in, whatever it displays...
> > > >
> > > >
> > > Perhaps you should consider uDig? http://udig.refractions.net/
> > >
> > > >- On the map, I'd like to draw points for some latitude longitude.
> > > >I'm not interested in any zooming or any complicated feature. just basic
> > > >display.
> > > >
> > > >So, this use of Geotools seems to be very basic compared to everythign it
> > > can
> > > >do, however I don't seem to get a clear indication of how to achieve this :
> > > >- Which jars do I need ? (there are 30 or 40 jars in the binary
> > > distribution, I
> > > >don't think all of them are necessary, right ?)
> > > >- how to embed a simple map inside a JFrame ?
> > > >
> > > >
> > > You make consider looking at the tutorials - in particular the
> > > "spearfish demo"
> > >
> > >
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