form erasing previous canvas

Comments

• eduard

  July 2022

  Hi Fotis,

  Can you share your experiment? Without seeing an implementation it is hard to judge what is going awry here.

  Thanks,

  Eduard

  
• fotisfotiadis

  July 2022 edited July 2022

  Here you are:

  https://drive.google.com/file/d/1GpeYvxKnrOvTSFPQd67gmdOKumT8pVBG/view?usp=sharing

  After placing the four points on the two lines, and the sliders are drawn, a fifth click is required (anywhere on the screen) to proceed.

  You see that the form (in this case a simple button) erases the previous canvas.

  Thank you.
• fotisfotiadis

  July 2022

  Hi again.

  Perhaps the previous script was too complex.

  I made a simpler example.

  At each trial, two lines are drawn on the top side of the screen. After a mouse click, a button appears on the bottom side of the screen. I would like the button not to erase the two lines.

  Is this functionality possible?

  Thank you,

  Fotis

  Spacial_Repr_Decid_form_Test.osexp

  
  
• eduard

  July 2022

  Hi Fotis,

  So, what you want is the "Click to continue" message remain on the screen, after the click, and the "Press next" message appear in the bottom. Is that correct?

  if so, that your approach doesn't work because every canvas/sketchpad/form is always replacing the current display. Therefore, to have an experience of information added to a screen, you always have to copy the currently presented information to the next screen, add the new information and only then present it.

  Does that make sense?

  Eduard

  (ps. sorry for the late reply)

  
• fotisfotiadis

  July 2022

  Hi Edward,

  A reply is always appreciated ;-)

  Yes, your response makes sense, I am using a different approach for the task now, thank you.

  
  

  Best,

  Fotis