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Math Help - How to know direction of point

  1. #16
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    Ya, you are absolutely & I agree your Point completely.

    I fully agree your suggestions but this can be called as a communication failure on myside to describe full set of possible conditions.

    In the attached figure, both the lines are in 3rd quadrant, but a possiblity is that Line AB is in 2nd, CD In 4th & so on......The list is endless.

    So, the direction is vital to derive to proceed for swapping further.

    Zirok
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  2. #17
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    Quote Originally Posted by Zirok View Post
    Ya, you are absolutely & I agree your Point completely.

    I fully agree your suggestions but this can be called as a communication failure on myside to describe full set of possible conditions.

    In the attached figure, both the lines are in 3rd quadrant, but a possiblity is that Line AB is in 2nd, CD In 4th & so on......The list is endless.

    So, the direction is vital to derive to proceed for swapping further.

    Zirok
    What attached figure? Did you forget to attach it? This is a bit of a struggle.

    If quadrants are important, then you should probably include the x- and y-axes in whatever image you choose to share...

    Also, it doesn't make sense to say that a line is confined to one quadrant. A line is infinite and must span at least two quadrants, unless it coincides with an axis..
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  3. #18
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    Than, i need to write endless conditions such as -


    if Line AB - 1st, CD - 1st, than d1 should be on positive side of Interesection Point
    If Line AB - 1st, CD - 2nd ,, & so on..............



    If i would get some logic to know the direction of the line, i would have not struggled so much to imagine....
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  4. #19
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    Quote Originally Posted by Zirok View Post
    Than, i need to write endless conditions such as -


    if Line AB - 1st, CD - 1st, than d1 should be on positive side of Interesection Point
    If Line AB - 1st, CD - 2nd ,, & so on..............



    If i would get some logic to know the direction of the line, i would have not struggled so much to imagine....
    I'm sorry, but your questions are non well-formulated enough to permit an answer to be given. As was already mentioned, there is no "positive" or "negative" side of an intersection; the direction can be given as a vector, or as an angle between 0 and 360 degrees (or 0 and 2pi radians), and there is only positive/negative in the x-direction or y-direction, or in the direction of some other axis of your choosing.

    I would like to help you, but I simply cannot answer a question that does not make sense. I hope you find your answer soon! I will try to continue helping. I might be busy though as the work week is starting in my time zone. The other people here will also be able to answer questions.
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  5. #20
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    Thanks Sir, for your valueable time & unmatched support & Interest in My Problem.

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