Export points with object layer attribute
To answer you question in essence no there is no way to attach the layer that a point resides on within the point file format.
Now you can control the layer that points go to by useing description keys which read the raw description of the imported data and places the object in the drawing based on the values you establish for the particular point.
I guess a little more information on what your trying to achieve would be helpful to giving you a reasonable solution
Rick Jackson
Survey CAD Technician VI
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Rick Jackson
Survey CAD Technician VI
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As rl_jackson mentioned you simply can't give a cogo a layer based on a value contained in a cogo's PENZD. What you'll need to do is create point groups so you can control the appearance of your cogo points. If the current cogo point groups do not provide a term (e.g. small, med, or large trees), then you must re-create your point groups or create point groups when none exist in the first place. When your point groups are re-created or created, you can categorize them: either 'include' or 'exclude' based on point numbers, elevation, raw description or full description. For example, all trees descriptions=sml, another for med, and another for large. Or all point numbers from 1 to 24, another from 25 to 49, and so forth. This will get tedious very fast. On top of that , you'll need to pay special attention to point styles and special attention to label styles if you are labeling them. Furthermore, styles, whether point styles or label styles, can crossover from one group to another, which may, or may not, make it messy for the All Points group, or the master group.
If it was me, I would take the cogo 'data' by click 'all points' in toolspace, then highlighting the PENZD from the panorama-thingy at the bottom.
If you need to select all rows, click just one then ctrl-A which will select all. When they're all highlighted, right click and copy to clip board, then paste it to a spreadsheet. Edit the columns and rows in Excel so you'll get a nice, organized PENZD. You can do a lot from this PENZD, like dividing it up into 4 separate CSV's then using each one individually to insert cogo points.
If you are an advanced user and know your way around shapefiles, you can even go beyond the standard 5-columns of PENZD and make additional columns 6, 7, 8, etc., etc. Then create a shapefile from the spreadsheet with all your columns, where all the spreadsheet columns are used to generate the dbf, or the shapefile's attribute data. Then, use MAPIMPORT on the shapefile to bring it back into C3D. With know-how, this command will bring in and insert your own blocks using one of the tabular data columns to conveniently populate one of your block's attributes and act as the block's label. The remaining tabular data that wasn't used as a label will simply be 'object data' and give your blocks the impression they're on steroids.
Chicagolooper
FYI, the procedure DATAEXTRACT doesn't work on cogo points. Even though that command lets you run through the entire wizard up until and including FINISH, it won't produce a file with data. It's a total fake-out.
Chicagolooper
