NOTE: Not working on Android 5.0 and above devices!
Little program for Site Engineers, Setting-Out Engineers, Surveyors, and for anyone who want to know where is intersection point between two lines and coordinates for it. When you need quickly establish where is it on plan or in 3D you don't have to go back to office and check it with CAD any more. There is better and quicker solution - use Lines Intersection 3D program on your Android phone. Use it to calculate missing coordinates for Grid Lines in 2D, or to check if there is possible clash between pipes and ground beams/underground services, or for whatever you want - it will give you [Easting,Northing] coordinates for intersection of the lines, and if you entered Z values for levels at the ends of lines, it will show you levels at crossing point for each of the lines. Also, it will show you four horizontal distances from ends of lines to intersection, and slopping (3D) distances too. If both distances along line are positive, that means that intersection is between ends of line (inside), but if one of the distances shown has negative (-) sign, that means that intersection is outside of that end of the line.
Limitations: If Lines are too close to each other/with small (sharp) angle between them, you might get WRONG results!
In the example shown on screenshots, intersection is located outside (before) point A (Line 1), and outside (before) point C (Line 2).
You can always come back to previous screen to check or change entered coordinates.
Program works with Decimal Units.
N.B. Always check your Setting-Out and Calculation with different methods and common sense ("sound and prudent judgment based on a simple perception of the situation or facts"). Developer and/or distributor of this program can NOT and will NOT be hold responsible for any mistakes which happened as a result of using or not using this program. By downloading and installing this program user agree to it and accept his own full responsibility.