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hyperPad

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  3. Anchor point

Anchor point

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  • Aidan_FireA Aidan_Fire

    @iTap-Development [0_1507239850952_rotate.tap](Uploading 100%) Here’s a trig version lol. Aww I don’t have the privileges to upload the actual file lol. Link: http://bit.ly/2yrzlps

    iTap DevelopmentI Offline
    iTap DevelopmentI Offline
    iTap Development
    wrote on last edited by
    #16

    @Aidan-Oxley great I’ll check it out tomorrow....because it’s 9:00 pm here and I’m tired!

    1 Reply Last reply
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    • Aidan_FireA Aidan_Fire

      @iTap-Development [0_1507239850952_rotate.tap](Uploading 100%) Here’s a trig version lol. Aww I don’t have the privileges to upload the actual file lol. Link: http://bit.ly/2yrzlps

      iTap DevelopmentI Offline
      iTap DevelopmentI Offline
      iTap Development
      wrote on last edited by
      #17

      @Aidan-Oxley hey could you explain the “initial angle” box container and how you’re using it?

      Aidan_FireA 1 Reply Last reply
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      • iTap DevelopmentI iTap Development

        @Aidan-Oxley hey could you explain the “initial angle” box container and how you’re using it?

        Aidan_FireA Offline
        Aidan_FireA Offline
        Aidan_Fire
        wrote on last edited by Aidan_Fire
        #18

        @iTap-Development It’s the angle from the anchor to the object when the object is at rotation 0°. For example, anchor is 1 metre up and 1 metre to the right (so both positive), so when the object is at 0° rotation, the angle from the anchor to the object is 225° (so that’s down-left). Hope this makes sense.

        iTap DevelopmentI 1 Reply Last reply
        0
        • Aidan_FireA Aidan_Fire

          @iTap-Development It’s the angle from the anchor to the object when the object is at rotation 0°. For example, anchor is 1 metre up and 1 metre to the right (so both positive), so when the object is at 0° rotation, the angle from the anchor to the object is 225° (so that’s down-left). Hope this makes sense.

          iTap DevelopmentI Offline
          iTap DevelopmentI Offline
          iTap Development
          wrote on last edited by iTap Development
          #19

          @Aidan-Oxley hey, so I’m just coming back to this(I got a 3d printer so I’ve been busy with that!);
          What do you need the “initial angle” for?
          And I’m not sure as to the purpose of the behaviors in the screen shot.0_1509768978624_1A339C64-88B6-41E1-8C8C-A6109AC1CEDC.png

          Jack de WildeJ Aidan_FireA D 3 Replies Last reply
          0
          • iTap DevelopmentI iTap Development

            @Aidan-Oxley hey, so I’m just coming back to this(I got a 3d printer so I’ve been busy with that!);
            What do you need the “initial angle” for?
            And I’m not sure as to the purpose of the behaviors in the screen shot.0_1509768978624_1A339C64-88B6-41E1-8C8C-A6109AC1CEDC.png

            Jack de WildeJ Offline
            Jack de WildeJ Offline
            Jack de Wilde
            wrote on last edited by Jack8680
            #20

            @iTap-Development those behaviours are Pythagoras' theorem. The result from the square root is the distance from the centre to the anchor point.

            1 Reply Last reply
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            • iTap DevelopmentI iTap Development

              @Aidan-Oxley hey, so I’m just coming back to this(I got a 3d printer so I’ve been busy with that!);
              What do you need the “initial angle” for?
              And I’m not sure as to the purpose of the behaviors in the screen shot.0_1509768978624_1A339C64-88B6-41E1-8C8C-A6109AC1CEDC.png

              Aidan_FireA Offline
              Aidan_FireA Offline
              Aidan_Fire
              wrote on last edited by
              #21

              @iTap-Development Jack is right. This is how you work out the diagonal distance between two points if you know their coordinates.

              iTap DevelopmentI 1 Reply Last reply
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              • iTap DevelopmentI iTap Development

                @Aidan-Oxley hey, so I’m just coming back to this(I got a 3d printer so I’ve been busy with that!);
                What do you need the “initial angle” for?
                And I’m not sure as to the purpose of the behaviors in the screen shot.0_1509768978624_1A339C64-88B6-41E1-8C8C-A6109AC1CEDC.png

                D Offline
                D Offline
                Deeeds
                wrote on last edited by
                #22

                @iTap-Development A hacky, tacky way to achieve the goal:

                Create a dummy object that you'll use as a virtual anchor point. Use the physics weld joint to bind your rotating object to the dummy object at the position you want relative to the virtual anchor point. Then rotate the dummy object. This should give you the result you want, but will ruin anything else regarding physics.

                But I agree. The anchor point should be respected by the rotate behaviour.

                iTap DevelopmentI 1 Reply Last reply
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                • D Deeeds

                  @iTap-Development A hacky, tacky way to achieve the goal:

                  Create a dummy object that you'll use as a virtual anchor point. Use the physics weld joint to bind your rotating object to the dummy object at the position you want relative to the virtual anchor point. Then rotate the dummy object. This should give you the result you want, but will ruin anything else regarding physics.

                  But I agree. The anchor point should be respected by the rotate behaviour.

                  iTap DevelopmentI Offline
                  iTap DevelopmentI Offline
                  iTap Development
                  wrote on last edited by
                  #23

                  @Deeeds that would work kinda, but yeah it wouldn’t work well in some ways.

                  1 Reply Last reply
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                  • Aidan_FireA Aidan_Fire

                    @iTap-Development Jack is right. This is how you work out the diagonal distance between two points if you know their coordinates.

                    iTap DevelopmentI Offline
                    iTap DevelopmentI Offline
                    iTap Development
                    wrote on last edited by
                    #24

                    @Aidan-Oxley @Jack8680 oh duh! So you are just multiplying the x and y by them selves for the x and y distance to the other point?
                    I think I always just added the actual x and y distances.

                    Aidan_FireA 1 Reply Last reply
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                    • iTap DevelopmentI iTap Development

                      @Aidan-Oxley @Jack8680 oh duh! So you are just multiplying the x and y by them selves for the x and y distance to the other point?
                      I think I always just added the actual x and y distances.

                      Aidan_FireA Offline
                      Aidan_FireA Offline
                      Aidan_Fire
                      wrote on last edited by Aidan_Fire
                      #25

                      @iTap-Development You know Pythagora’s theorem? If you have a right angle triangle, a is the length of one side, b is the length of the other and c is the length of the hypotenuse (the longest one, diagonal if a is x and b is y), then c² = a² + b². What I was trying to work out is the diagonal distance between two points. I can easily get the x and y distance between them, but I wanted diagonal.

                      iTap DevelopmentI 2 Replies Last reply
                      0
                      • Aidan_FireA Aidan_Fire

                        @iTap-Development You know Pythagora’s theorem? If you have a right angle triangle, a is the length of one side, b is the length of the other and c is the length of the hypotenuse (the longest one, diagonal if a is x and b is y), then c² = a² + b². What I was trying to work out is the diagonal distance between two points. I can easily get the x and y distance between them, but I wanted diagonal.

                        iTap DevelopmentI Offline
                        iTap DevelopmentI Offline
                        iTap Development
                        wrote on last edited by
                        #26

                        @Aidan-Oxley sorry! I was confusing with something else in my project 🤦‍♂️ I’ve only got a few hours of sleep every night for a week due to my 3d printer addiction! so my brain doesn’t work....

                        1 Reply Last reply
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                        • Aidan_FireA Aidan_Fire

                          @iTap-Development You know Pythagora’s theorem? If you have a right angle triangle, a is the length of one side, b is the length of the other and c is the length of the hypotenuse (the longest one, diagonal if a is x and b is y), then c² = a² + b². What I was trying to work out is the diagonal distance between two points. I can easily get the x and y distance between them, but I wanted diagonal.

                          iTap DevelopmentI Offline
                          iTap DevelopmentI Offline
                          iTap Development
                          wrote on last edited by
                          #27

                          @Aidan-Oxley so why are you multiplying the sine and cosine angles by the diagonal distance?

                          Aidan_FireA 1 Reply Last reply
                          0
                          • iTap DevelopmentI iTap Development

                            @Aidan-Oxley so why are you multiplying the sine and cosine angles by the diagonal distance?

                            Aidan_FireA Offline
                            Aidan_FireA Offline
                            Aidan_Fire
                            wrote on last edited by
                            #28

                            @iTap-Development I don’t remember lol. There is a reason though. It’s probably one of those formulas like hypotenuse = sin(θ) × opposite.

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