AutoCAD Map 3D

[#1]

Hi There,

I'm using mapimport to bring in xyz points and they have come in ok, except that they are flipped horizontally.

(they come in as a block)

Any ideas on how to flip them back?

Perhaps there is a command that rotates objects all at one time *not* based on one central point..

Any help would be greatly appreciated.

Thanks!

[#2]

does flipped mean 180 degrees on y axis? as in your x values are negative instead of positive or vice versa?

[#3]

They do appear to be simply flipped 180 deg. The points come directly from the gps unit, so perhaps the data needs to be changed in some way before importing....
I have not yet tried inserting a negative sign in the CSV file. I'll try it in the morning.

[#4]

Hi,

then I guess that your columns for X and Y have to be changed.

- alfred -

[#5 · Accepted solution]

You might just need to change the sign on the X values.  If you are in the western hemisphere, sometimes a GPS will record the X value as positve, and indicate otherwise that is it W, but a LL or similar CS in Map will expect -42 for example, not 42 and a W in a separate column.

[#6]

Thanks! I tried a bunch of different variations on putting a negative sign in front of the x and the y... I'm working in UTM83 zone 12.
I did get it working ok, now just need to figure out why only portions of the data are completely off. That's a question for a different forum though.