How can I add a text to the plotted line?

[burnbrain123]

I have the following script:

def MarketOpenPrice = if SecondsFromTime (0930) == 0 && SecondsTillTime(0930) == 0 then open else marketopenprice[1];

input showtodayonly = yes;

plot Opening_Price = if showtodayonly
                     then (if getday()==getlastday() and
                              SecondsFromTime (0930) >= 0 and
                              SecondsFromTime(1800) <= 0
                           then MarketOpenPrice
                           else Double.NaN)
                     else (if SecondsFromTime (0930) >= 0 and
                              SecondsFromTime(1800) <= 0
                           then MarketOpenPrice
                           else Double.NaN);

When the line is plotted how can I have a text to the line? Similar to this screenshot . I tried few with Label and Bubble but cant make it work.

 

[halcyonguy]

I have the following script:

def MarketOpenPrice = if SecondsFromTime (0930) == 0 && SecondsTillTime(0930) == 0 then open else marketopenprice[1];

input showtodayonly = yes;

plot Opening_Price = if showtodayonly
                     then (if getday()==getlastday() and
                              SecondsFromTime (0930) >= 0 and
                              SecondsFromTime(1800) <= 0
                           then MarketOpenPrice
                           else Double.NaN)
                     else (if SecondsFromTime (0930) >= 0 and
                              SecondsFromTime(1800) <= 0
                           then MarketOpenPrice
                           else Double.NaN);

When the line is plotted how can I have a text to the line? Similar to this screenshot . I tried few with Label and Bubble but cant make it work.

this draw a bubble at the end of the line.
it uses 2 isnan()'s to determine if a plot has a value or not

#addtexttoline

#https://usethinkscript.com/threads/how-can-i-add-a-text-to-the-plotted-line.19347/
#How can I add a text to the plotted line?
#burnbrain123  8/19

def MarketOpenPrice = if SecondsFromTime (0930) == 0 and SecondsTillTime(0930) == 0 then open else marketopenprice[1];

input showtodayonly = yes;

plot Opening_Price =
 if showtodayonly then
   (if getday() == getlastday() and SecondsFromTime (0930) >= 0 and SecondsFromTime(1800) <= 0
     then MarketOpenPrice else Double.NaN)
 else (if SecondsFromTime (0930) >= 0 and SecondsFromTime(1800) <= 0
     then MarketOpenPrice else Double.NaN);

addchartbubble(
 (!isnan(opening_price) and isnan(opening_price[-1])),
 opening_price,
 "opening price " + opening_price,
 color.white,
 yes);
#