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Circle coordinate calculator: New updated more flexible version

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  • Circle coordinate calculator: New updated more flexible version

    A comment on the previous thread started me thinking about how to improve the utility. It now is much more flexible in specifying the arc length and position. It also now will calculate the length of a flat (chord) for any number of flats (max 360) within any arc up to a full circle.



    It is only 41kb

    http://ixian.ca/server/circlecalcv11.exe
    Free software for calculating bolt circles and similar: Click Here

  • #2
    Thanks Evan.

    Dwayne
    "When it comes to paradigms ... shifts happen" - Alain Rossman

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    • #3
      Originally posted by Evan
      A comment on the previous thread started me thinking about how to improve the utility.
      A worthy improvement, but with a bug in the angle readout.
      Allan Ostling

      Phoenix, Arizona

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      • #4
        What bug?
        Free software for calculating bolt circles and similar: Click Here

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        • #5
          3131.0 line 7
          Ernie (VE7ERN)

          May the wind be always at your back

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          • #6
            Using exactly what settings? It is probably a formatting error. Just curious, does a value of 313.1 make sense?
            Free software for calculating bolt circles and similar: Click Here

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            • #7
              Evan, look at the screen shot you posted

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              • #8
                The angle values should be

                231.00
                244.83
                258.66
                272.50
                286.33
                300.17
                314.00
                327.83
                341.67
                355.50
                009.33
                023.17
                037.00

                The ones indented printed out erroneously.
                Last edited by aostling; 06-18-2011, 10:24 PM.
                Allan Ostling

                Phoenix, Arizona

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                • #9
                  Download it again and try it. I found a small roundoff error for certain values that produce formatting problems.

                  Without knowing the settings you used the results aren't meaningful.

                  Unfortunately, computers do not always produce accurate results even for rational numbers. This because the math is done in binary and then converted to decimal. For instance, In binary 0.001 is an irrational number.
                  Last edited by Evan; 06-18-2011, 10:24 PM.
                  Free software for calculating bolt circles and similar: Click Here

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                  • #10
                    Originally posted by Evan
                    Without knowing the settings you used the results aren't meaningful.
                    The corrected values shown above are for the settings in your OP. I cannot download it unless you make a Mac version.
                    Allan Ostling

                    Phoenix, Arizona

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                    • #11
                      I noticed that and fixed it. Don't you have a PC emulator Allan?
                      Free software for calculating bolt circles and similar: Click Here

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                      • #12
                        Originally posted by Evan
                        Don't you have a PC emulator Allan?
                        I hesitate to open up that can of worms.
                        Allan Ostling

                        Phoenix, Arizona

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                        • #13
                          How sad. I actually fired up wine* to look at Evan's program. First time I've used it in 5 years.

                          Nice program, though my DRO does that for me. And my phone too.

                          I should learn the math instead.

                          Dan

                          * Wine is a windows emulator that runs on a Linux system
                          At the end of the project, there is a profound difference between spare parts and extra parts.

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                          • #14
                            Do the graphics work correctly under WINE?
                            Free software for calculating bolt circles and similar: Click Here

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                            • #15
                              Originally posted by aostling
                              I hesitate to open up that can of worms.
                              Don't be scared!

                              I run a wide variety of CAD, CAM and other Windows apps on my Mac -- all run perfectly and reliably. VMWare Fusion baby!

                              PM

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