GIS to AutoCAD and back

[JF]

so i'm working on cleaning up some base datasets in our GIS program (Cadcorp SIS) and rather than making all the changes in SIS (which takes FOREVER!!!!) i want to export them to a dwg, clean them up in autocad and re-insert them into SIS.

Basicly the drawings i am looking at are different zones (with MULTIPLE vertices), they are supposed to be adjacent but some overlap, and some have gaps where they are supposed to meet. i need to make the edges of the blocks (what all the zones are once in acad) join together perfectly, while keeping the attribute information associated with each block.

thoughts.............



(i am an "experianced" user.....i just haven't had to use acad in YEARS. i also have every version available to me)

[CarlB]

When you export the "zones" to AutoCAD they become blocks? If you explode them are they polylines? Are the "attributes" actual AutoCAD attributes, invisible?

You could use "Refedit" to move some vertices and keep the attribute information. But this may not be too efficient either.

[JF]

i re-ead what i wrote and just to clarify.....i am working on multiple drawings....each one of those drawings has multiple zones that are adjacent to each other, the files themselves have nothing to do with each other. after reading what i wrote, i didn't think i made that clear )

now, when i export the file from SIS into a dwg and open that dwg, each one of those zones is a block (for anyone interested, the map is US wind zones) each of those blocks has attribute information from SIS (that i need to keep). When i explode them they do become plines (cant remember if the attribute information stayed, i think it did)

i was thinking about refedit.....i just don't feel like moving thousands (plus) of vertices.....the only other option i can think of is to redraw the common lines and re-create the blocks one by one....TE-DI-OUS

[CarlB]

Using the "boundary" command would speed up recreating the closed polyline. You could explode the blocks, draw lines/polylines representing the common boundarie, use boundary to create new polylines with the common boundaries, erase the "bad" polylines. What could be a problem is normal attributes are converted to "attribute definitions upon exploding, or to plain text if "burst". If you do lose the attribute information, you may want to create the new polylines as described above but without exploding the block, but then use "refedit" to delete old polyline and add new polyline.

[JF]

that is exactly what happens (if i explode the blocks)......

i'll try the other method you mentioned when i have a spare moment......


thanks!