Custom Coordinate system point converted to ARNAD83NF (Arkansas State Plane)

[soundwoods]

Hi,

I have just started using a custom coordinate system;

that was created by someone else.

I maintain the city’s comprehensive lot, parcel, subd. maps.

The plats from surveyors have coordinate points (custom now) that are used for the point of beginning for the new survey/plat to be added.

I would like to be able to convert-transform. the new point (custom) CCCS  x and y coordinate’s back to what I have all my drawing set up in ( State Plane AR83-NF). AutoCAD Map 3D 2013-drawing.  Paper copies of plats are submitted.

In the custom coordinate system (CCCS) the:   N 109227.5     E 398907.0     would be the Point of Beginning, to start the lot, subd, and or tracts legal description.

Below, is the “custom” Craighead County Coordinate System; (CCCS).

I use Arkansas State Plane NAD 83 North Feet, projected in US feet.

                CCCS:

  Lambert Conformal Conic (Single Parallel)

Standard Parallel & grid origin: 35°35’03.22204”N

                     Central Meridian: 92°00’00.00000”W

                         False northing: 0.00000  U.S. Ft

                            False easting: 0.00000  U.S. Ft

             Standard parallel scale: 0.999 996 (exact)

                    Horizontal datum: NAD 83

                        Vertical Datum: NAVD 88

Here is an example that I had a surveyor do for me, but he had to use a surveying device.

FROM:

CCCS

N 109227.5

E 398907.0

WGS84

35°52’36.4558”

90°39’12.7664”

TO:

STATE PLANE (ARKANSAS NORTH FEET)

N 564522.29

E 1711216.37

__________________________________

                Maybe someone will have a suggestion.

                Hopefully I have given you enough info to help.

Your help would be greatly appreciated!

Thank-you,

[phil_borycens]

Hello,

Drawing Query is generally the tool used to transform objects from one coordinate system to another. So in your case, if your points are projected in a DWG that has your CCCS assigned, you should be able to do the following to transform to AR83-NF:
1. Start a new drawing and assign the AR83-NF CS.
2. In Map Explorer, Attach the CCCS points drawing.
3. Create and execute a LOCATION:ALL Query.
4. Run a ZOOM > EXTENTS to see the points.

If an error or warning appears, please post that, as another step might be required. But please try the above process first.

Also, you can check your work using the Track Coordinates tool. You can add as many coordinate systems to that as you like, so for you, you might want to track CCCS, WGS84, and AR83-NF simultaneouly. This is possible using the tracker, regardless of the drawing's CS assignment.