Algorithms for simple 2D geometry coded in VB6 #3

Algorithms for simple 2D geometry coded in VB6 #3 PLEASE READ THROUGH THE WHOLE PROJECT DECRIPTION! PLEASE SET YOU BID TO WHAT YOU REALLY WANT AND NEED! OR DON'T BID. We need a few algorithms for solving tangent cases of circles in 2D geometry. It is about circles tangent to other elements (circle or/and line (mixed)). See attached PDF for an overview. The purpose is to create a circle/arc tangential to up to 3 other elements. There are also a few intermediate steps and conditions to solve, see PDF. In the case if a tangential circle/arc doesn't touch an input element, a variable or function return value has to reflect this. In principle it is the same as seen in several CAD programs. --- We will provide a test app which will help to interactively set different input data in a graphical manner. This test app is also supposed to display the results of the calculations. The coder and us can prove the correctness of the calculations in this test app. The test app is coded in VB6, it is not very sophisticated and easy to understand. See screenshot. The task shall happen in this test app. --- The calculations will lead to more than one single solution in most cases. All of them have to be returned and displayed. Also the touching points have to be calculated and returned and displayed. The best is to store the single solutions (result circle data and touching points) in an array. --- Before reinventing the wheel, the algorithms can be easily found here: [login to view URL] The algorithms are coded in C# and can be used in VB6 with some syntax change. The comments in the arcenciel algorithms are good and understandable. You need to know both: C# and VB6. --- The algorithms have to be coded in pure VB6 (Visual Basic 6). All variable names have to be self-explaining. Parts of the algorithms shall be in functions and not repeated over and over. A clean, structured coding is mandatory. Comments and variables in English please. --- Please ask questions if something is not clear to you. And don't bid if you didn't fully understood the tasks to solve. We will release the milestone immediately after we could check the source code and it is error-free. Payment will happen immediately after testing on our side gives positive results. Payment will happen in one shot only after completion, no intermediate milestones.