I am creating a shapefile with polygons. Below is the code fragment that I am using to generate a shapefile, I have omitted dbf and shx code for simplicity. Let me know if you need any additional information.
EsriLayer polygonLayer = new EsriLayer("testShapefile", ShapeConstants.SHAPE_TYPE_POLYGON, 7);
//Build dbf table
...
//Build layer
while (ellipses to add to layer) {
OMEllipse ellipse = new OMEllipse(centerPoint, majorAxis, minorAxis, Length.NM, Math.toRadians(azimuth-90));
float[] ellipsePoints = ellipse.createLatLonPoints();
EsriPolygon poly = new EsriPolygon(ellipsePoints, 1, 0);
ArrayList<String> attributes = new ArrayList<String>();
...
polygonLayer.addRecord(poly, attributes);
}
//Write file
FileOutputStream shpFileStream = new FileOutputStream("testShapefile.shp");
ShpOutputStream shpStream = new ShpOutputStream(shpFileStream);
EsriGraphicList list = polygonLayer.getEsriGraphicList();
int[][] imageData = shpStream.writeGeometry(list);
//write dbf and shx files
...
shpFileStream.close();
Thanks,
Nathan
-----Original Message-----
From: Don Dietrick [mailto:dietrick_at_bbn.com]
Sent: Mon 10/19/2009 2:37 PM
To: Reese, Nathan
Cc: openmap-users_at_bbn.com
Subject: Re: [OpenMap Users] shapefile header fields, File Length
Hi Nathan,
The file length is calculated for the shapes being placed in the
file. What kind of shape type are you creating a file for, and what
classes are you using to do it?
- Don
On Oct 19, 2009, at 1:41 PM, Reese, Nathan wrote:
> I am having problems opening shapefiles generated with OpenMap using
> various GIS applications (although the shapefile can be opened in GE
> and with ArcGIS). The shapefiles can only be opened by all GIS
> applications by first opening and resaving the file with ArcGIS.
>
> I have compared the orginal .shp file with the ArcGIS updated .shp
> and have found that the only difference is in the File Length field
> in the main file header (byte 27). I have tried using the ShapeFile
> class to display the shapefile header information, but that utility
> always returns a value of 100 for the File Length. Has any one
> experienced these types of problems. Does ShpOutputStream properly
> set the File Length field in the main file header?
>
> Thanks,
>
> Nathan
>
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Don Dietrick, openmap_at_bbn.com
BBN Technologies, Cambridge MA, USA
http://openmap.bbn.com
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
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Received on Tue Oct 20 2009 - 10:50:13 EDT