OK I'll try to be more descriptive... I'll give an exemple for a single elevation contour.
I got one contour which is constituted by many polylines. These polylines are adjacent, which means that the last node of one polyline is the first node of another polyline and so on... so the hole serie of polylines looks like a single polyline. What I want to do is to combine these polylines permanently. If I use the combine function, this will only make a temporary single polyline because when using the disaggregate function it will break up into original polylines. Which means that the information of the individual polylines is kept somewhere within the file when combined. That's the "aggregation information" I mentionned. I want to combined the polylines whitout keeping that information so the disaggregate function will have no effect on the resulting combined polyline. The goal of thit is that I have to export these lines to AutoCAD via DXF format. If there is aggregated lines in the original file, they will be imported as a block, which cause problem for the final application of the CAD file. Like I said earlier, I tried exporting/importing in different formats, thinking that the "aggregation information" would be lost. Unfortunatly, it is not the case. Hope this is clear enough this time. Thanks to people who try to help me! Simon Roy GIS Specialist Carto-M�dia, Environnement Illimit� Montreal tel.:514-849-7281 Fax.:514-849-6770 Email : [EMAIL PROTECTED]
