adjusting the size of the stimulus

[David McFarlane]

Yelda, Since you pressed the issue...

Stock reminder:  1) I do not work for PST.  2) PST's trained staff 
take any and all questions at 
http://support.pstnet.com/e%2Dprime/support/login.asp , and they 
strive to respond to all requests in 24-48 hours -- this is pretty 
much their substitute for proper documentation, so make full use of 
it.  3) In addition, PST takes questions at their Facebook page 
(http://www.facebook.com/pages/Psychology-Software-Tools-Inc/241802160683 
), and offers several instructional videos there and on their YouTube 
channel (http://www.youtube.com/user/PSTNET ) (no Twitter feed yet, 
though).  4) If you do get an answer from PST staff, please extend 
the courtesy of posting their reply back here for the sake of others.

That said, here is my take, and I will try to do this without getting 
too snarky (now that we are marketing our own online E-Prime training 
course, it seems that I have to adopt a more "professional" persona, 
over which I am struggling)...

Both this and your earlier post do not contain a single question mark 
("?"), let alone pose any clear question -- they both present merely 
a partial set of specifications, so it is hard for me at least to 
know what question you mean to ask.  Do you want someone to jump in 
and just write the whole experiment program for you?  Do you want a 
fully working demo program of how to resize circles, for 
incorporation in your program?  Do you want merely to know how to get 
mouse coordinate inputs for use in your routine?  Do you have a 
specific "how-to" question about some small programming detail?

I find that this Group works best in addressing minute details of 
specific programming problems, not in designing entire experiment 
programs based on partial specifications.  Then again, from time to 
time some kind and talented souls here do step in to provide complete 
programs, so you may get lucky.

And again, PST Web Support has been known to design entire custom 
experiment programs at no charge, so you might try them.

Good luck,
-----
David McFarlane
E-Prime training 
online:  http://psychology.msu.edu/Workshops_Courses/eprime.aspx
Twitter:  @EPrimeMaster (twitter.com/EPrimeMaster)


At 3/15/2012 02:07 PM Thursday, you wrote:
>Dear group,
>
>I posted a question three days ago, but didn't get a reply. I'm so 
>sorry for bombarding your inbox with my questions but I'm hoping 
>that maybe someone who missed it last time may help me.
>
>My task is as following: I want the participants to do resize a
>randomly sized circle (I'll use "cnvs" function to draw the circle)
>and then record the radius or diameter of the final size of the
>circle. I can do this by either of the two ways below: (currently my 
>code draws a circle and makes incrementally bigger without requiring 
>any response).
>
>Mouse response: click on the circle and 'drag it' bigger or smaller
>
>Key response: make the circle incrementally bigger or smaller
>(preferably a pixel
>at a time) by pressing up and down keys
>
>I would appreciate any help.
>Many thanks
>
>--
>yelda

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