All Phones and Tablets with Internet Access

cogo4phone menu.
This is a simple and convenient coordinate geometry (cogo) application for phones and tablets. It can be used in the office, field, at home or anywhere you need to make survey related calculations. Having it on your phone means just one less device you need to carry. And, it can also be run from your desktop computer with the Chrome or Safari browser.

It is a web based application that runs on devices that have a browser compatible with Apple's iOS, Google's Android and others where the internet can be accessed. It is patterned after QuickCogo, the developer's desktop version. The application requires the internet for installation but then may be saved to the home screen and run thereafter without the internet. It offers many separate cogo routines containing solutions for the common problems surveyors confront daily. The various routines work interactively because they share the same database. For example, the same points and coordinates created with the bearing-distance routine may then be used in the stakeout or offset routines. The interface is similar to other versions where the user works from a menu of buttons, as shown at the left, each of which contains a link to a particular cogo procedure. Points with their data are maintained in a persistent storage area created within the software. This is not only a "piece" of cogo that you may find at the App Store but is a total program similar to what you may have on your PC at the office.

There is a separate version for each of 3 different screen sizes (Phone, 7" and 10" tablets). Although this application will accommodate many Android devices with browsers, I suggest reviewing "cogo4android" within this website for a similar application designed specifically for the OS native to Android that does not require the internet to run.

The screen shot at the left represents the menu as it appears on the tablet screens but is divided into 2 pages for the phone size to be more "finger press" friendly. Design of the routines for the phone size has also tried to accommodate finger presses.
To install the Phone Size Evaluation version which may also be used on other screen sizes, connect to wifi, then simply open the browser on your device and enter into the address bar (not a search area) http://www.eval2.volt.live and touch 'Go" or however you open it on yours and it will install. Generally you may skip everything before "eval2". but I included it just in case. In other words you may just enter "eval2.volt.live"

Unlike the Android version this one depends upon the internet and its host server (volt.live) for its installation. You may then add the application to your home screen for easy access without the internet. The cost is ? for the first screen size and ? for each additional size if you have multiple devices. I am confident you will find this application a very useful tool personally and professionally. Don't be put off by the "give away" price. I am only "giving back" to the profession I embraced for over 50 years. Even without the bells and whistles, this app won't disappoint.You may download the user guide HERE . Let me know of any issues or questions.

NOTE: If you don't have a device yet and just want to check out the application, it may also be opened and run on your desktop computer if you are using Chrome or Safari for your browser. Simply enter the same URL as given above.

MAC USERS...this application should also work on your mac desktop computer using your safari browser.

Please EMAIL ME or call 801-254-7181 if there are questions or to make suggestions how the application may be improved.

These are the routines and features currently available in the application:

  • Angle-Dist traverse with closure
  • Find angles between intersecting lines
  • Area of a closed figure
  • Bearing/azimuth traverse
  • Inverse between 2 points
  • Inverse between coordinates not defined by points
  • Inverses between a group of points
  • Inverse between points on a curve. Displays the curve information between the points
  • Curve calculations given 2 known elements of the curve
  • Delete selected or all points in the database
  • Elevations for stations along a known slope
  • Email results of calculations for printing or saving on your computer
  • Export data via email from the device
  • Geodetic solutions for latitude/longitude (3rd party)
    (not in evaluation)
  • Import databases from external sources
  • Input points and their data
  • Calculate points of intersection for line-line,line-curve and distance-distance problems
  • A separate line-line routine for intersecting any 2 lines defined by point numbers
  • List points and their data
  • Layout points on a known line from another set up
  • Map check routine for determining closure and area of a parcel
  • Offset routines for perpendicular and parallel lines
  • Online scientific calculator (3rd party) with unit conversions
  • Plot routine for displaying configuration of all or selected points
  • Radial routine for locating many points by angle-distance. Great for ALTA surveys.
  • Resection routine for finding the location of a point using 3 known points and 2 angles
  • A reverse offset routine that allows setting the offset distance from a line
  • A road curve procedure which finds the curve information both sides of a road where the p.i. is known
  • Rotate lines by applying an angle to all bearings
  • Stakeout routine that computes the angles and distances to known points from other known points
  • Triangle solutions (3rd party)
    (not in evaluation)
  • Change all coordinates by a specific value
  • Calculate elevations for a vertical curve
  • Find the radius and the location of the radius point given 3 points on a curve
  • Distance, length and area conversions
    (not in evaluation)
  • User manual accessible within application
  • Other useful links accessible within the application (not in evaluation)

    You might also want to check out QuickCogo, the desktop version from which the routines in this application originated. I will continue to improve this software based upon your feedback. Please contact me if there are problems with any of the routines and I will correct them immediately. Please review the manual for details about how each routine works. Thank you for trying it.

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