Help! random graphic presentation

[Tam123]

Help!

I've created a progarm which randomly presents a series of words on a screen. The program then randomly selects a letter which it colours either blue, green or red (again in a random fashion). However, I now need code that will allow two arrows (or graphics) to appear one above and one below the randomly selected letter (ie to point to the letter and direct attention). Can anyone help me with code which will do this??

The biggest problem is that the word varies in length on any given trial...

My rev skills are limited so simple code would be much appreciated!

The code I have thus far is (if that helps at all?)....



put the number of characters of item 1 of line wordnumber of fld "wordField" into charnumber
put empty into fld "charfield"

put 1 into s
repeat until s > charnumber
put s & linefeed after fld "charfield"
add 1 to s
end repeat
put scramble(fld "charfield") into fld "charfield"

set the text of fld "colourLabel" to line wordnumber of fld "wordField"
put item 1 of line 1 of fld "charfield" into fred
set the textcolor of char fred of fld "colourLabel" to item 1 of line wordnumber of fld "colour"
Show fld "colourLabel"

[marielle]

Code: Select all

selectedloc 

will give you the x,y position of the selected letter.

To know the height of the character (and therefore by how much you need to offset the graphic on top or bottom of the letter), you can use

Code: Select all

put the formattedheight of character 4 of field myField into tCharHeight

[Tam123]

Hi,


Thanks for your prompt reply. But how do I use the code "selectedLoc"?

I tried the code below...

answer the selectedloc of char fred of fld "colourLabel"

and I don't get anything

I've also tried...

set the selectedloc of image "arrow" to the selectedloc of char fred of fld "colourLabel"

put the selectedloc of char fred of fld "colourLabel" into charLoc
set the topleft of image "arrow" to charLoc

and neither work... Sorry I must be using the code wrong any help would be much appreciated.

Thanks

[marielle]

answer the selectedloc of char fred of fld "colourLabel"

and I don't get anything

I've also tried...

Makes sense... but unfortunately runrev won't understand this. Why not try?

Code: Select all

select char fred of fld "colourLabel"
put the selectedloc

(select doesn't seem to run from the messagebox but this works from within a script)

[Tam123]

I'm so sorry but I'm still confused as to what to do after

put the selectedloc

How do I use this code to make the image's location the same as the selected letter?

[Tam123]

Hi,

I figured it out! I used the code below...

put the formattedleft of char fred of fld "colourLabel" into army
set the left of image "arrow" to army

your reference to the formattedheight code gave me a clue.

Thanks so much for all your time and effort-much appreciated!!

Tam

[malte]

Hey Tam!


You beat me to it. I use rev over 5 years now and didn't know that works. Thanks a lot!

Malte

[Tam123]

Hi Malte,

No problem, glad to help! I discovered Rev two years ago but I am limited to psyc experiments so I tend to just recyle old code. I love it when I finally get to do something new and more challenging. I enjoy the puzzle

Cheers,
Tam

[marielle]

put the formattedleft of char fred of fld "colourLabel" into army set the left of image "arrow" to army

Cool, that's an excellent generalisation. I wouldn't have thought of it. On put the selectedloc and what comes after:

Code: Select all

put the selectedloc into myLoc

Then my loc contains something like 125,40

Code: Select all

put the selectedloc into myLoc
put item 1 of myLoc into myX
put item 2 of myLoc into myY

Your solution is very cool and more efficient

[marielle]

I am limited to psyc experiments

Can you tell me more about that? I am a cognitive psychologist. I produced this museum of perception and cognition a few years back (well many years back now, as the look and feel of the website shows)

[Tam123]

Hi,

Very cool. I want to start doing more web based stuff.

The work varies.

If it's a clinical project then I'd be creating survey's (ie a depression questionnaire) using Rev. Where responses would be recorded and anaylsed by Rev which would output their score ie. severely depressed, moderately depressed etc.

If it's cognitive psyc it would be say a learning study where stimuli is presented on the screen and the person would learn response contingencies and their rate of learning would be measured.

Most recently it's been a Stroop task where response times are recorded. This is the project I was asking all the questions about.