+x

 

AndrewPapale - 1/18/2023

Hi Inquisit Team,

I'm trying to dynamically change a picture's /hposition attribute trial by trial, but it is not working.  I've tried two approaches.  1) Defining one image and changing the /hposition programatically.  This did not alter the /hposition attribute correctly, the picture stayed at the default position.  2) Define a default image <picture defaultimage> and change the picture in the picture.defaultimage.item.1 to be a new image in a new position.  This also resulted in the image in the default position.  I know there has to be a way to do this, any help is appreciated! 

I would prefer not to define a new <trial> block with each image separately, I know that's another option.

Thanks,
Andrew

+x

 

AndrewPapale - 1/18/2023

+x

 

AndrewPapale - 1/18/2023

Hi Inquisit Team,

I'm trying to dynamically change a picture's /hposition attribute trial by trial, but it is not working.  I've tried two approaches.  1) Defining one image and changing the /hposition programatically.  This did not alter the /hposition attribute correctly, the picture stayed at the default position.  2) Define a default image <picture defaultimage> and change the picture in the picture.defaultimage.item.1 to be a new image in a new position.  This also resulted in the image in the default position.  I know there has to be a way to do this, any help is appreciated! 

I would prefer not to define a new <trial> block with each image separately, I know that's another option.

Thanks,
Andrew

I'm going to try implementing a list, following from:
https://forums.millisecond.com/Topic16071.aspx

+x

 

AndrewPapale - 1/18/2023

+x

 

AndrewPapale - 1/18/2023

+x

 

AndrewPapale - 1/18/2023

Hi Inquisit Team,

I'm trying to dynamically change a picture's /hposition attribute trial by trial, but it is not working.  I've tried two approaches.  1) Defining one image and changing the /hposition programatically.  This did not alter the /hposition attribute correctly, the picture stayed at the default position.  2) Define a default image <picture defaultimage> and change the picture in the picture.defaultimage.item.1 to be a new image in a new position.  This also resulted in the image in the default position.  I know there has to be a way to do this, any help is appreciated! 

I would prefer not to define a new <trial> block with each image separately, I know that's another option.

Thanks,
Andrew

I'm going to try implementing a list, following from:
https://forums.millisecond.com/Topic16071.aspx

This also did not seem to work. Here's some example code of what I'm trying to do. I'm trying to change /hposition from a list in the <trial> based on an expression values.fogPos. Basically the idea is we want this fog image to move around the circle to different locations and stay there for a few trials.

<picture fog0>
/ items = ("fog0.png") //default
/ hposition = expressions.centerx + expressions.widthchange_angle0
/ vposition = expressions.centery + expressions.heightchange_angle0
/ size = (30%, 30%)
/ erase = false
</picture>

<picture fog30>
/ items = ("fog30.png") //default
/ hposition = expressions.centerx + expressions.widthchange_angle150
/ vposition = expressions.centery + expressions.heightchange_angle150
/ size = (30%, 30%)
/ erase = false
</picture>

<list fog_hpos>
/items = (
expressions.centerx + expressions.widthchange_angle0,
expressions.centerx + expressions.widthchange_angle30,
expressions.centerx + expressions.widthchange_angle60,
expressions.centerx + expressions.widthchange_angle90,
expressions.centerx + expressions.widthchange_angle120,
expressions.centerx + expressions.widthchange_angle150
)
/ selectionmode = list.fog_hpos.currentindex
/ selectionrate = always
</list>

<picture uncertainty>
/ items = ("fog0.png") //default
/ hposition = list.fog_hpos.nextvalue
/ vposition = list.fog_vpos.nextvalue
/ size = (30%, 30%)
/ erase = false
</picture>

<trial experiment_U>
/ ontrialbegin = [
    if (values.fogPos==30){
        picture.uncertainty.item.1 = "fog30.png";
        list.fog_hpos.item(6);
        list.fog_vpos.item(6);
    }
]
/ stimulustimes = [0 = uncertainty;]
</trial>

Thanks
-A

+x

 

AndrewPapale - 1/18/2023

+x

 

AndrewPapale - 1/18/2023

+x

 

AndrewPapale - 1/18/2023

+x

 

AndrewPapale - 1/18/2023

Hi Inquisit Team,

I'm trying to dynamically change a picture's /hposition attribute trial by trial, but it is not working.  I've tried two approaches.  1) Defining one image and changing the /hposition programatically.  This did not alter the /hposition attribute correctly, the picture stayed at the default position.  2) Define a default image <picture defaultimage> and change the picture in the picture.defaultimage.item.1 to be a new image in a new position.  This also resulted in the image in the default position.  I know there has to be a way to do this, any help is appreciated! 

I would prefer not to define a new <trial> block with each image separately, I know that's another option.

Thanks,
Andrew

I'm going to try implementing a list, following from:
https://forums.millisecond.com/Topic16071.aspx

This also did not seem to work. Here's some example code of what I'm trying to do. I'm trying to change /hposition from a list in the <trial> based on an expression values.fogPos. Basically the idea is we want this fog image to move around the circle to different locations and stay there for a few trials.

<picture fog0>
/ items = ("fog0.png") //default
/ hposition = expressions.centerx + expressions.widthchange_angle0
/ vposition = expressions.centery + expressions.heightchange_angle0
/ size = (30%, 30%)
/ erase = false
</picture>

<picture fog30>
/ items = ("fog30.png") //default
/ hposition = expressions.centerx + expressions.widthchange_angle150
/ vposition = expressions.centery + expressions.heightchange_angle150
/ size = (30%, 30%)
/ erase = false
</picture>

<list fog_hpos>
/items = (
expressions.centerx + expressions.widthchange_angle0,
expressions.centerx + expressions.widthchange_angle30,
expressions.centerx + expressions.widthchange_angle60,
expressions.centerx + expressions.widthchange_angle90,
expressions.centerx + expressions.widthchange_angle120,
expressions.centerx + expressions.widthchange_angle150
)
/ selectionmode = list.fog_hpos.currentindex
/ selectionrate = always
</list>

<picture uncertainty>
/ items = ("fog0.png") //default
/ hposition = list.fog_hpos.nextvalue
/ vposition = list.fog_vpos.nextvalue
/ size = (30%, 30%)
/ erase = false
</picture>

<trial experiment_U>
/ ontrialbegin = [
    if (values.fogPos==30){
        picture.uncertainty.item.1 = "fog30.png";
        list.fog_hpos.item(6);
        list.fog_vpos.item(6);
    }
]
/ stimulustimes = [0 = uncertainty;]
</trial>

Thanks
-A

I got it working, dumb syntax error.  It worked the first way I tried it.  I was defining values.fogPos with 2 equal signs instead of 1.