[GRASSLIST:469] RE: OGR-generated shapefiles show spikes and outliers in ArcView

[Patton, Eric]

I'm using Grass 6.1 cvs on a Dell PC running Ubuntu 5.1. ArcView is run on
the same machine on the Windows XP partition. 

I gave the shapefile in question to a fellow using Global Mapper - the
shapefile looks fine. So only ArcView seems to have a problem with it. I
haven't had the chance to document what goes wrong during the editing
process yet - maybe I can get to that today if I get a chance.

To clarify exactly what is wrong, the end nodes of certain vector line
segments get stretched vertically to infinity - ArcView runs out of "zoom"
and you can't see where the lines actually end; almost as if there is no
terminal node on the line segment and ArcView doesn't know what to do with
it. 

~ Eric.

 

-----Original Message-----
From: Hamish
To: Patton, Eric
Cc: GRASSLIST at baylor.edu
Sent: 3/28/2006 9:05 PM
Subject: Re: [GRASSLIST:446] RE: OGR-generated shapefiles show spikes and
outl	iers in ArcView

> >> The shapefile is showing all kinds of weird spikes and horizontal
> >> lines that look like corrupted data, but of course the vectors look
> >>fine in Grass. Has anyone had any issues with shapefiles,
> >specifically >linework, From Grass?
> 
> >Have you tried to reimport back to GRASS?
> 
> I tried re-import and the vector looks fine again in Grass. It's
> strange, any shapefile I generate from Grass can be viewed in ArcView
> fine, ONLY if no editing has been performed, it seems. Once I delete
> line segments, add new ones, split lines up, etc., ArcView doesn't
> seem to like the shapefile after that. I'm going to try to do edits
> and see what conditions I can create that 'break' a shapefile from
> Arcview's point of view. 

Are you using a Mac? ie big-endian G5?
ArcView on a PC or VirtualPC?


Hamish