Re: Projection.forward()

Hi David,

It's not you, but it's working as intended.

The forward method is just to translate lat/lon to screen x/y
coordinates. The inverse method translates screen x/y coordinates to
lat/lon. You can't change the projection parameters, you just create a
new one in the ProjectionFactory with the new parameters when you want
to change the map.

- Don

On Wednesday, January 2, 2002, at 06:17 PM, David Garnier wrote:

> Hello,
> Is that me or is (Some Projection).forward() isn't doing anything to the
> actual Projection (unlike (Some Projection).pan()).
>
> Here is the code used to create the Projection:
>
> setProjection(
> ProjectionFactory.makeProjection(
> ProjectionFactory.getProjType(Mercator.MercatorName),
> latlon.getLatitude(),
> latlon.getLongitude(),
> getScaleByIndex(getCurrentScaleIndex()),
> 600,
> 440));
>
> ((Proj) getProjection()).setMaxScale(getScaleByIndex(0));
> ((Proj)getProjection()).setMinScale(getScaleByIndex(getScalesList().size(
> )-1));
>
> And I try to move the Projection using
> getProjection().forward(lat,lon);
>
> Any thoughts on this problem?
>
> Best regards,
> David Garnier
>
> --
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>

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Donald Dietrick, dietrick@bbn.com
BBN Technologies, Cambridge, MA
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

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