[Shapelib] ESRI ArcView Shape from ShapeLib Zoom/Drawing Problem

[Anna Katarina Mahlau]

Hi all,

we encounter the following problem: We create Polygon-Shapes using the 
ShapeLib. ArcView can read the Shapes. We can zoom in but only to a 
certain degree. At one Level you can still see the polygon boundaries 
and on the next zoom level they are partially gone, and there are 
triangels drawn instead of rectangles, or even blank regions.

We also used version 1.2.10.

Does anyone know this problem?

If not, I can provide a sample shapefile and part of the source.

Thanks for any help?
Anna