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Author Topic: How can i transform a 3D cylinder using 2 transformation with dynamic variables  (Read 6650 times)
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lookang
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on: November 09, 2009, 09:54:12 am » posted from:Singapore,,Singapore

Hi Prof,

How can i transform a 3D cylinder using
Code:
"z:"+cta
and
Code:
y:90d

each works on its own but i can't figure out how to add both.
for example i tried but it doesn't work
Code:
"y:90d & "z:"+cta"


my reference:
http://www.um.es/fem/EjsWiki/Main/ElementsAboutTransforms

i want a rotating cylinder with both transformation to achieve the look of a cylinder

attached in my source xml for


* ACdiscproblem.PNG (13.55 KB, 411x345 - viewed 374 times.)

* Acdisc.PNG (1.49 KB, 113x88 - viewed 485 times.)

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« Last Edit: November 09, 2009, 10:12:05 am by lookang » Logged
Fu-Kwun Hwang
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Reply #1 on: November 09, 2009, 05:04:54 pm » posted from:Taipei,T'ai-pei,Taiwan

If you want to do "z:"+cta then "y:90d",
 you should set the property to "z:"+cta+" & x:90d"
If you want to do "y:90d" then "z:"+cta
 you should set the property to "x:90d & z:"+cta

Because cta is a variable so it need to be outside the string and added to property string with "+" operator.
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lookang
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Reply #2 on: November 09, 2009, 08:01:49 pm »

Fantastic tips. Thx a million!
Will try later

finally understood the logic is additive.

using
Code:
"y:90d & x:"+cta

to achieve the same effect! thx!
« Last Edit: November 09, 2009, 09:40:50 pm by lookang » Logged
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