Re: Problem : points alignment discrepancy when zoom-in/out

Hi Nischal,

On Friday, May 17, 2002, at 05:27 AM, NVohra@eq-technologic.com wrote:

> Hello,
> I have a LinkServer which serves points from a database.
> I display these on a link layer in an applet with a shapefile based
> layer showing a city map as background.
>
> When i zoom in / out, the distance between points and a location on
> map changes, which appears as an error.

Look to check if anything is staying on the same place on the screen, in
x/y pixel space, when the projection changes. If they are, then they
probably are not getting re-generated with the new projection. Are you
using a generic OpenMap LinkLayer?

The other thing that could be happening is that the LinkServer is
creating x/y points instead of lat/lon points. Make sure that the
points on the server side are getting created with floats.

> When lat/long of a point and a location on map is same, this
> discrepancy should not happen?

That's true.

- Don

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Don Dietrick, BBN Technologies, dietrick@bbn.com
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