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maestro

Compass is messed up!?!?

4 posts in this topic

#1 ·  Posted (edited)

*************************SOLVED...Kinda***********************************************************************************************************

Hi, I'm making a compass sort of thing but when I run it i get these results, can any one help me figure out how to convert it to standard degrees.

Here's a representation of what I'm getting.

0

        45             -45



     90         X          -90



       -45             45

               -0

And I was hoping there might be a way to change the values to a standard 360/0-90-180-270-360/0.

I would be SOOOOO grateful for anyone that could help on this matter.

Edited by maestro

Hello, World!... LAME lol

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Maybe you could give us a bit of a head start by posting some of the code you tried. Also, your representation shows 45 degrees so do you want 45 degree increments or 90 degree increments.

You can easily do it in a loop stepping backwards from 360 by the increment. 0/360 270 180 90 or forwards doing the same thing.

And that's it for me for a few days. Shutting down now and I won't be back before Friday at the earliest.


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Here's the math that it does to get the angle.

$Pxa= $Px2 - $Px
$Pya= $Py2 - $Py
$in = $Pxa / $Pya
$pi = 4 * ATan(1)
$Dir = ATan($in)*180/$pi

But I Worked out a makeshift solution,

its not the greatest but it works.

Thanks anyways.


Hello, World!... LAME lol

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#4 ·  Posted (edited)

Finished bug testing the fix, if anyone is having same problem, feel free to copy and edit my solution.

$N = 0
    $E = 0
    $S = 0
    $W = 0

If $Py < $Py2 Then ;True = North
    $N += 1
EndIf
If $Px > $Px2 Then ;True = East
    $E += 1
EndIf
If $Py > $Py2 Then ;True = South
    $S += 1
EndIf
If $Px < $Px2 Then ;True = West
    $W += 1
EndIf
If $Dir < 0 Then
    $Dir = $Dir * (-1)
EndIf
If $N = 1 Then
    If $E = 1 Then
        MsgBox (0,"N'E'",$Dir)
        $N = 0
        $E = 0
    ElseIf $W = 1 Then
        $Dir = $Dir - 90
        $Dir = $Dir * (-1)
        $Dir = $Dir + 270
        MsgBox (0,"N'W'",$Dir)
        $N = 0
        $W = 0
    EndIf
    If ($N + $E + $W) = 1 Then
        MsgBox (0,"N'",$Dir)
        $N = 0
    EndIf
ElseIf $S = 1 Then
    If $E = 1 Then
        $Dir = $Dir - 90
        $Dir = $Dir - 90
        $Dir = $Dir * (-1)
        MsgBox (0,"S'E'",$Dir)
        $E = 0
        $S = 0
    ElseIf $W = 1 Then
        $Dir = $Dir + 180
        MsgBox (0,"S'W'",$Dir)
        $S = 0
        $W = 0
    EndIf
    If ($S + $E + $W) = 1 Then
        $Dir = 180
        MsgBox (0,"S'",$Dir)
        $S = 0
    EndIf
EndIf
If $E = 1 Then
            $Dir = 90
    MsgBox (0,"E'",$Dir)
EndIf
If $W = 1 Then
            $Dir = 270
    MsgBox (0,"W'",$Dir)
EndIf

    ;Resetting values to undetermend.
    $N = 0
    $E = 0
    $S = 0
    $W = 0

If you are going to use this you will have to change the variable names, but don't touch the $N,$E,$S,$W.

You will need to points of data for it to work, a initial position, and an offset position.

Edited by maestro

Hello, World!... LAME lol

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