METERS TO FEET

I don't use Carlson, but I would put it in Excel and convert it there.

Ponits>adjust points>scale points.

Just pick which points and your chosen factor.

If you can't find "ponits", look for "points".:-P

Without having the program open in front of me I will give you an idea of how I would do it:

Command line: SCALE

Select the things you want to scale

Base point: 0,0,0

Scale factor: enter appropriate scale factor

Zoom extents, then..

Points, Coordinate file utility, update .crd from drawing

select everything, and voila.

Thanks. I was worried about getting the scale factor to apply to elevations as well as N and S. When I went to the Scale Command I found that Carlson had anticipated this issue. {This all falls under the “ID ten T” error (IDI0T)}

Scale>Adjust Coordinates>Scale Points>
(Uncheck the Ignore Elevations box)
(Uncheck the Use Customized Scale Factor box)
Under Source Coordinates choose Metric
Under Destination Coordinates choose US Feet

All is right with the world!

> I don't use Carlson, but I would put it in Excel and convert it there.

Totally logical. But be very careful using this method.

If you are working in a local coordinate system like 5000, 5000 or 10000, 10000 there shouldn't be any problem. But if you are working in State Plane coordinates, there will be issues that can throw you off several feet. Found out this problem the hard way. Excel doesn't use as many decimal places for their conversion as is required for accurate figures in the larger numbers.

As indicated below, Carlson anticipated the need and has some very cool tools built in.

Larry P

0.3048

3937/1200

> 0.3048
International Feet

> 3937/1200
US Survey Feet

I found a discussion of precision issues in Excel at https://support.microsoft.com/en-us/kb/78113/en-us?wa=wsignin1.0

Superficially 15 digits would be enough to give adequate results even if one was using state plane coordinates (which "waste" about 6 digits of precision). But if you use the wrong scale factor (for international vs. US survey feet) then the wasted digits for state plain coordinates is the same order of magnitude as the error in the conversion factor, which isn't good.

Is there more specific information about why the 9 or so digits of precision left after allowing for the state plane coordinates isn't good enough?

EWWW

International Foot. Eww!

I love the US FT = 3937/1200. Why did someone have to mess with a fraction?

EWWW

I am partial to fractions myself, the old deed records around here are full of them in distance and acreage amounts.

They truly define the percentage of measurement that can take too many decimal places to equal or fall short with when an infinite amount is attempted to be quoted.

The Title Company stopped accepting them years ago and I was forced to stop using them.

😉

EWWW - smells good if you are willing to learn some history.

Why would anyone mess with existing fraction - for short history see link.