Shp To Dxf/dwg Missing Attribute Data.

[sbayya]

Hi,
I recently started using this conversion software and its working great for me.
However recently I tried to convert some topography data "contour lines" from shape. files to cad drawings but the part where I was editing the contours and editing the elevation data (in the right column) seems to be missing information, thats the "vertex z" values

I need these files to be converted correctly and sent to an engineers and amat a loss, I tried to go through the help menu but couldn't find any answers there.

Aslo , when I try to place labels on these lines, its showing me some erratic numbers and letters not the actual elevation values that I need to label.

I never had this problem on smaller files.

Any help in this regard would be greatly appreciated.
Thanks
shwetha.

[GuthCAD Software Support]

Hi,

It is not a problem that we have heard of. Are you able to send a shapefile (.SHP + .SHX + .DBF, zipped if possible) that demonstrates the error?

thanks
Software Support

[sbayya]

I believe when you convert shape files to CAd in Catalog we have to first convert shape files to 3D shp. then convert it to a dxf format, I thought arcv2CAd took care of that problem for me. Any way, . Our area of interest is the contours around the river meander. Ive also marked out the area with a thin red line.
Im not able to upload the .zip file on to this post if you could fwd your email I would attach it there. or if you have a ftp address i would post it in there be cause this is a big file.

[GuthCAD Software Support]

Hi,

(1) I have sent you a Private email to give our FTP upload area info. Click the 'Private Messages' link at the top of the page.

(2) To send me an email, click the GuthCAD Software Support at the start of this reply, and select 'Send private message'.

Thanks,
Software Support

[GuthCAD Software Support]

Hi,

Thanks for sending the shapefile.

The shapefile is a 3D shapefile (PolylineZ). For 3D shapefiles Arcv2CAD gets the Z information from the actual Z values in the 3D shapefile, rather than an elevation attribute as it does for 2D shapefiles. The reason that some contours in your shapefile have been translated with a 0.0 elevation is because that is the Z value in the 3D shapefile. Whether the 3D shapefile is corrupt, or simply that some contours were not originally given an elevation, I do not know, you would need to check it with the supplier of the shapefile.

As it happens we have a workaround in the pipeline that should overcome this type of problem. Hopefully some time next week there will be a software update that will give an option to use an attribute as the Z value, in preference to the actual Z values in the shapefile.

re.
Also , when I try to place labels on these lines, its showing me some erratic numbers and letters not the actual elevation values that I need to label.I am not sure whether this is the same problem as above. If not please point out an example in the sample data that you sent.

BTW we will also implementing an option to convert text fields that contain data such as '4.30800000000e+003' to the more easily read '4380' in the coming update.

Thanks,
Software Support

[GuthCAD Software Support]

Update:

A new software update (Arcv2CAD 5.0 A.30) is here (http://www.guthcad.com/download.htm).

It allows elevations to be generated from an 'Elevation' field, overriding the actual Z values that are defined in PolyLineZ and PointZ shapefiles.

best regards,
Software Support

[Kyudos]

I'm using the DLL version, and trying to use the desktop version to figure out where the switch is for this. If I set my PolylineZ SHP file to use elevations from the polyline itself, Arcv2CAD claims to be using the following settings:

/C0=0 /CFN=ELEVATION /CC=2 /CP=0 \
/EN=ELEVATION /ES=1.0000 \
/L="CONTOURS_MATHEWS_1M" \
/SV=14

I haven't told it to use /EN, but it does anyway. So when I tell it to use the ELEVATION field, it claims to be using exactly the same set of settings.

How do I tell it specifically to not use an ELEVATION field? When I construct my command line and the user doesn't select a field, I leave out the /EN option, but then I don't get the Z data from the 3D polylines...

Thanks,

Dan