LiveCode Forums.

Hi, All
Please help!

How to rotate an object 360 degree with wheel effects?!

Thanks,
AhmedF.

Look up "angle" in the dictionary.
With a repeat loop you can make it go round and round.

Simon

Thank you Simon for your help, but sorry that doesn't work

Hi Ahmed,

maybe you should explain first what you mean with "a wheel effect"
Nevertheless I have the feeling that this will not be possible with the build-in means of Livecode.


Best

Klaus

Hi, Klaus
I mean to rotate, for example the fan rotating.

Hi Ahmed,

yes, sure
And to "rotate" an image you set its "angle" property!

What are we missing?


Best

Klaus

Hi,Klaus
Ok but how to repeat?!

Thanks,
AhmedF.

Hi Ahmed,

well, maybe a "repeat" loop?

On the other hand I am sure you could simply FAKE that look like this:
Create a couple of separate images which represent the current "rotation" and then use a button's icon
to show these X images continuously instead of a FULL rotation of an image.

I will try to create a little example stack a bit later...


Best

Klaus

Hi Klaus,

Thank you For your help
I am waiting to see the sample stack



Thanks,
AhmedF.

Hi Ahmed,

OK, finished, check the card script, I think this is what you are looking for!


Best

Klaus

WOW! Thats great and simple!

Thank You Klaus for your great effort

Best Regards,
AhmedF.

Hi Ahmed,

glad you like it!
As you see, we are simply selling an illusion (of a rotating wheel) here

The technique of using "send X in ..." is very efficient, since it does not BLOCK like an repeat loop.
Try to get accustomed to this, very important for smooth animations!!


Best

Klaus

Thanks, Klaus
Really that is great way to make cool animation !
I use it in all apps i programmed to give it an animation!

Thanks again

Best Regards

Ahmed F.

Wow that really is a good way to allow constant animation while not holding up the script at all since in the wait time, the rest of the script will be processing. I am defintely going to use this!

Hi Klaus.

Would you entertain a few follow-up questions about your stack?

1) Being a newbie, I would have written a similar stack using handlers. You used "command". What's the difference? (The LC dictionary doesn't help much on this point.)
2) What is the result you are getting back from the "send" message in lin 19 and 20? I tried to view it as a variable and did not see it. You stored it in tAnimationMessage and used it to cancel the operation. Is it a message ID?
3) You end the animation_stop with "enable btn "animate" of cd 1". What is the reason for that? (Did the animation process disable the button?)

Thanks Klaus!
Tom