Re: shape files

Hi Carlos,

I have the feeling that the coordinates of the objects in the shape file
are pre-projected. Do you know if that's the case? You can check the
coordinates of the graphics by running:

java com.bbn.openmap.layer.shape.SpatialIndex -d -b <path to .ssx file>

The *.ssx file is created by the ShapeLayer if it doesn't exist, or you
can create it from the shape file using the SpatialIndex file.

If the coordinates are not decimal degrees, then OpenMap won't readily
display the data.

Regards,

Don

On Monday, October 1, 2001, at 10:27 AM, Carlos Vasconcellos wrote:

> Dear all,
>
> ---The problem---
> I´m having trouble plotting some maps in shape format.
>
> ---How i´m working---
> I´ve got a large library of MapInfo MIF files (maps), but the MifLayer
> seems to bee slower than the ShapeLayer.
> So the MIF files were converted to Shape files (*.shp and *.shx) using
> ArcView mifshape utility.
> I´ve added the converted Shape files to the openmap.properties file.
>
> ---What´s happening---
> The ShapeLayer only plots the Shape files when the zoom is very far.
> When i try a zoom in, the map disappear with no error message. When i
> switch back to a zoom out, the map is plotted again.
>
> --The environment--
> I´m using Win2k, JDK1.3.1, NetBeans IDE 3.2, OpenMap 3.6.2, OpenMap
> 4.0, OpenMap 4.1 and OpenMap 4.2.1.
>
> ---The shape files---
> The Shape files could be openned and edited using ArcView GIS 3.2 with
> no problem.
> (That´s why i think the "problem" is in the ShapeLayer)
>
> --How to solve the problem---
> Does anybody have any idea of what shoul be done to fix this?
>
> Thanks for the attention,
>
> Carlos Vasconcellos
> Curitiba/PR - Brazil
>
>
>
>
> --
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