Background sketchpad manipulation

Comments

• lvanderlinden

  March 2023

  Hi @Pari ,

  
  

  Could you send us your experiment so far, so that we can take a look?

  
  

  In general, you could:

  
  

  • Use the regions-of-interest functionality to determine which item was selected:
  https://osdoc.cogsci.nl/3.3/manual/response/mouse/#coordinates-and-regions-of-interest-rois

  
  

  • Determine the x-coordinates of the target location (by collecting another mouse response)

  
  

  • Use a `feedback` item that is similar to the previous sketchpad except that the stimulus is moved to the "drop location"

  
  

  If you also want to animate the target being dragged, thinks get a bit more complex.

  
  

  Cheers,

  
  

  Lotje

  Did you like my answer? Feel free to
• Pari

  April 2023 edited April 2023

  
  

  Hi Lotje,

  First of all, sorry for my late response. I ended up designing a drop area as an image file using Affinity designer. Afterwards, I positioned the image on a preferred position on a sketchpad and added the below code to my check-clicked function to check if an item is dropped within the area of this image. Then I simply draw the same object using psychopy.visual.ImageStim function.

  clicked_on_drop_area = False
  
  while not clicked_on_drop_area:
  
  button, drop_pos, timestamp = mouse.get_click()
  
  x_drop, y_drop = drop_pos
  
  # Check if the click position is within the boundaries of the image
  
  if (x_drop >= (drop_image_screen_left + 40) and x_drop <= (drop_image_screen_right - 40)) and (y_drop >= (drop_image_screen_top + 40) and y_drop <= (drop_image_screen_bottom - 40)):
  
  clicked_on_drop_area = True
  
  break
  
  dropped_element = {'Type': selection['Type'], 'X': x_drop, 'Y': y_drop, 'Time': selection['Time'], 'Index': selection['Index']}
  
  drop_element(dropped_element)
  

  I am currently figuring out how to write a proper in-line script for logging my data as in each iteration I need to log the dropped_element variable which is defined as a dictionary with several values and this variable is defined in a function. I would be thankful to receive any hint or idea how this can be done.

  
  

  Many thanks,

  
  

  Best wishes,

  PariShad