Dear friends,
By following codes we show a line on screen.
def draw view
view.line_width = 3
view.draw_polyline pt1, pt2
end
How can we clear this line from view? Thank you for your help in advance.
Dear friends,
By following codes we show a line on screen.
def draw view
view.line_width = 3
view.draw_polyline pt1, pt2
end
How can we clear this line from view? Thank you for your help in advance.
Use view.invalidate, to force a redraw, then use an if statement to prevent the line from being redrawn.
By using an “if” statement I do nothing in “def draw view” and it clear everything I draw before. Thank you for your help.
correctly:
def draw(view)