You have a list of survey points in one datum, and the map you need to match them to uses another. Convert them by hand and a small datum or spheroid mistake moves every point. Coordinate Calculator by Victor Nekrasov handles this job: it converts latitude/longitude coordinates to and from other coordinate systems.
Quick facts
- Version: 2.02
- Vendor: Victor Nekrasov (Vinek Software)
- License: freeware, according to the vendor's page
- Platform: Windows, built as a 32-bit application
- Datums and spheroids: 264 datums, 33 spheroids
Key features
Convert Lat/Lon to and from other projections
You can calculate Lat/Lon coordinates to or from coordinates in different map projections. The projections follow the recommendations of the Defense Mapping Agency Technical Report 8350.2.
Choose from 264 local datums and 33 spheroids
When your data comes from an older or regional survey, you can pick the local datum it was recorded in. You can also pick the spheroid it was computed on, instead of forcing everything into one global model.
Convert one point or a whole list
The program can convert single points and lists of points, so one batch can replace repeated manual entry.
Input and output areas, with a coordinate system selector
The window has an Input Area where you enter coordinates in three columns. An Output Area shows the results. A Coordinate System Area shows the input and output systems and lets you change them. You can also enter coordinates with the mouse and on-screen buttons. A status bar shows errors and other messages.
Who it's for
It suits surveyors, GIS hobbyists, students of geodesy and anyone who has to move coordinates between datums or projections. If you only need a quick check of a few points, it is probably more than you need. If your data uses older regional datums, the large datum list is the main reason to use it.
Pros and cons
Pros
- 264 datums and 33 spheroids
- Handles single points and lists of points
- Follows a published Defense Mapping Agency reference
- Freeware, according to the vendor
Cons
- It is a 32-bit Windows program written for Windows 95 through XP, so you may need to test it on newer Windows versions
- The interface is a basic desktop window with columns and buttons
- The vendor's page does not show screenshots of the working program, so you can't preview the layout beforehand
FAQs
Does it cost anything?
The vendor's page says the program is freeware and points to a licence file for details. Older listings on other sites show it as shareware.
Which datums does it support?
Version 2.02 supports 264 datums and 33 spheroids.
Can it convert many points at once?
Yes. It can convert single points and lists of points.
Which standard does it follow?
The coordinate systems follow the recommendations of Defense Mapping Agency Technical Report 8350.2.
System requirements
The vendor describes it as a 32-bit application that runs on Windows 95, 98, NT, 2000 and XP.