Co-ordinate Dimensioning

Previous Topic Next Topic
 
classic Classic list List threaded Threaded
3 messages Options
Reply | Threaded
Open this post in threaded view
|

Co-ordinate Dimensioning

MarkTwaing
Hi all,

I am doing some GPS surveying and am importing the data to a drawing. I would like to display the coordinates near the points (in meters i.e. 6e6,7e9). Is there any way to do so effectively?

The issue is that the origin to the GPS data is at the intersection of the equator and the prime meridian. (very far) and I don't want to go through the vector mathematics on every point to zero out to a reference point.

I intend to walk the path with the GPS and mark the new points with stakes from my drawing. I'm sure there may be something I can do with the GPS waystation (maybe setting a new origin to make things easier), but I am open to ideas.

Thanks!
Reply | Threaded
Open this post in threaded view
|

Re: Co-ordinate Dimensioning

perepujal
Hi, I don't know if you will be able to reset the zero position in your device, I supose yes, but I don't know that kind of devices.

If you can't, then I warn about preprocessing the point data:
There had been threads complaining that LibreCad does not perform fine that far of origin, so really you want to have the 0,0 point near your data.

If you can't reset the zero point in your device, I suggest to export your data as a .CSV file, preprocess it  in a spreadsheet,maybe 3 simple sums/rests for the x.y.z values and reexport it from the spreadsheet as .CSV.

Then the Import ASCII points plugin in LibreCAD is your friend.

HTH
Pere
Reply | Threaded
Open this post in threaded view
|

Re: Co-ordinate Dimensioning

MarkTwaing
Hey thanks, this is good to know. You are very right, there's a lot of minor things that can be inconvenient as well, being far from the origin (i.e. printing and more). Just ended up taking a reference point and doing the math in excel.

I am having some issues with some of the plugins, specifically the .csv function but I'll have to make a new post.

Thanks again!