Do you know the reason, why some ArcGIS tools (like Clip and Intersect) modifies number of vertices, even if the feature is not modified itself? Like on the picture, I use Clip and Intersect on line with polygon. The line has 26 vertices before executing function. After, the line has 517 vertices even the tools don't modify that line.
I was only wondering how this is possible and if this is some bug or there is some reason why this tools do it. It happens with both functions (I tried only this two) no matter it's shapefile or geodatabase.
EDIT: The line was created by r.flow algorithm in GRASS GIS, then exported into shapefile. I think it hasn't true curves. The polygon is simply buffer around the line at 10 meters. Coordinate system of data and data frame is EPSG 5514. I'm using Win 7 (64-bit).