Animation Path VML Question

[Guest]

Hello,

I'm converting PowerPoint slides to flash, and are confused about the
Animation path coordinates:

For example:
path="M 0.02118 -0.12676 C 0.14965 -0.14319 0.39566 -0.17072 0.40851
-0.21929 C 0.42135 -0.26787 0.23073 -0.39949 0.09861 -0.41846 C -0.03351
-0.43743 -0.30746 -0.38284 -0.38437 -0.33333 C -0.46128 -0.28383 -0.43021
-0.15545 -0.36267 -0.12075 C -0.29514 -0.08605 -0.10729 -0.11034 0.02118
-0.12676 Z "

What does "0.02118" mean? How can I convert this into a pixel position?
Since I scale all shapes, I need to transform these coordinates to new
"scaled" pixel X,Y positions.

Thanks in advance for any information about this issue!

Regards,
Robert Pohl

 

[Chirag]

The path element in VML spec may shed some light:
http://www.w3.org/TR/1998/NOTE-VML-19980513

- Chirag

OfficeOne Animations - Add over 50 animation effects to PowerPoint
http://officeone.mvps.org/anims/anims.html

 

[Shyam Pillai]

Upper case characters represents absolute values, lower case represents
relative values with respect to the position of the shape.
The motion path is represented by a series of coordinates read in sequence
(4 sets for a bezier curve and 2 sets for a line) Each coordinate is
seperated by a space. The coordinate pair preceding the curve (C) or Line
(L) is the starting point for it representing it. The x and y coordinates
are represented in values betwen 0 to 1. Where 1 represents length equal to
the slide width (x coordinate) or height (y coordinate).

Open ended line (E)
M 0 0 L 0.25 0.0 E
Here: 0 0 represents center of the shape and it is the starting point for
the motion path ( a line) and it will move to the right along a straight
line total length = (0.25*720)=180 points assuming that the width of the
slide is 720 points.

A closed triangle (Z)
M 0 0 L 0.125 0.28773 L -0.125 0.28773 L 0 0 Z

A simple open ended bezier curve
M 0.0 0.1 C 0.1 -0.14 0.39 -0.1 0.4 -0.21 E

 

[Guest]

Thanks to the both of you!
I'll try this, and hopefully it will work out great.

Regards,
Rob

 

[Glen Millar MVP]

Shyam,

Is a negative number a simple opposite change in direction?

 

[Chirag]

Yup. It moves towards left, like (-0.25 * 720) = -180 points towards right,
that is, 180 points towards left.

- Chirag

OfficeOne Animations - Add over 50 animation effects to PowerPoint
http://officeone.mvps.org/anims/anims.html