• Adobe After Effects Expressions

  Zooming maps headache

  Posted by Jamesc on May 24, 2007 at 8:36 am

  Here is one for those who are far more clever than me.

  I have a set of maps at different zoom levels all layered on top of each other – 1x, 2x, 4x etc

  At the moment they are set up so each one is a child of the previous zoom level. So 2x’s parent is 1x… 16x’s parent is 8x etc Each child is a 50% scale of it’s parent.

  There is a linear expression on the opacity so that the current zoom level is 100 opacity – and any zoom levels before it are transparent. Zoom level is controlled by an expression slider using a Math.pow to multiply 0, 1, 2, 3, 4 to 1x, 2x, 4x, 8x, 16x etc

  Now this all works GREAT – apart from when you try to move around the map – and the whole thing starts to scale away from the anchor point.

  I am not clever enough to solve this problem… :o)

  I hope that explains it :o)

  Jamesc replied 19 years, 1 month ago 1 Member · 0 Replies
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