[solved] Touch Response function with Sketchpad

Comments

• sebastiaan

  March 2014 edited 10:06PM

  There is no way to visualize the grid used by the touch_response directly, but the logic is very simple: The display is divided into equally sized cells, where cell-width = screen-width / number-of-columns and cell-height = screen-height / number-of-rows. Using this formula you should be able to deduce where each cell is, right?

  If you want, you could also draw a simple grid using an inline_script, if that would help you to visualize things:

  from openexp.canvas import canvas
  
  n_col = 10
  n_row = 5
  w = self.get('width')
  h = self.get('height')
  
  # Draw a grid-like canvas
  my_canvas = canvas(exp)
  # Draw vertical lines to separate the columns
  for c in range(1, n_col):
      x = int(float(c)*w/n_col)
      my_canvas.line(x, 0, x, h)
  # Draw horizontal lines to separate the rows
  for r in range(1, n_row):
      y = int(float(r)*h/n_row)
      my_canvas.line(0, y, w, y)
  my_canvas.show()
  

  Cheers!
  Sebastiaan

  
  
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• JoshuaBaker

  March 2014 edited 10:06PM

  Thanks for the code Sebastiaan. the grid appears for something like 200ms then disappears, though. would it be possible to define how long the grid is displayed for, in the python script?

  Many thanks!
• JoshuaBaker

  March 2014 edited 10:06PM

  Sorted. THanks Sebastiaan