Fixing image corner for line symmetry animation

amvukovic shared this question 6 months ago
Answered

I have a half of a card and want to animate that card half reflection about purple line. The problem is that I can't position image so that the image's (card half) 3rd corner is fixed and that's why that corner is moving while changing the value of the slider as well as the 4th corner...

4th image's corner is defined as: C''=Enlarge(C', a, C) where var a is a slider (0 to 1), C' = Reflect(C, f), f is a mirror line (purple line).

Any suggestions would be much appreciated. Thanks.

Comments (4)

photo
1

This is what I've created so far... I'm creating reflection gifs for my students...

Sample

photo
2

How's this? Uses the Stretch() command on the image itself which might be easier.


/3GwRCi9R0GSAAAAAElFTkSuQmCC

photo
1

Thank you very much!!!!!!!!! It really didn't occur to me at all!!!!

This completely did the trick!!!! Once again, thank you very much!

photo
photo
1

Might also be useful: https://stage.geogebra.org/...

© 2021 International GeoGebra Institute