How Can i Plot a line with json ?

[qseworks]

i have a json file like so :

{
  date:date,
  open:open,
  high:high,
  low:low,
  close:close,
  volume:volume
}

The Question is How can plot a line with these values in Motivewave using the SDK ?

any guidance would be appreciated

 

[Spin]

I believe you would have to add a library to your project that 'translates' JSON to Java.
Read (an external ?) file with the values, import them into your MW-Study/Strategy, use them to draw line(s)

This might get you started:
https://www.baeldung.com/java-json

 

[qseworks]

I believe you would have to add a library to your project that 'translates' JSON to Java.
Read (an external ?) file with the values, import them into your MW-Study/Strategy, use them to draw line(s)

This might get you started:
https://www.baeldung.com/java-json

Hi Spin , Thank you for your reply ,

i already have the json mapped as Java objects via jackson's api of Date Type and of Double . my issue here is how can i store the information on the DataSeries object, display a line with the PathDescriptor to automatically plot a series of values that are stored in the DataSeries object

any help would be appreciated , and thanks again for your reply

 

[Spin]

Ah, sorry: I misunderstood your initial question

You can write 'Doubles' as Values to a (data)series and by doing so 'add them to a bar's usable data':

series.setDouble(index, Values.DAY_HIGH, today_high);

Then you could have your code look up the values that you need for your line:

point1 = series.getDouble(index, Values.DAY_HIGH)

And eventually use those to plot your line.
I have no code for that yet, since I did not need it until now. I guess you could either draw a set of lines between 2 points (and repeat that a number of times, so it will become one longer line) or plot a path over all the points you stored/looked up.
I suggest you look into the SDK's 'standard MW Studies' for a Study that does exactly this and then copy that code.

Let us know if it works or not, and how you implemented it. It might one day serve others

 

[qseworks]

Ah, sorry: I misunderstood your initial question

You can write 'Doubles' as Values to a (data)series and by doing so 'add them to a bar's usable data':

series.setDouble(index, Values.DAY_HIGH, today_high);

Then you could have your code look up the values that you need for your line:

point1 = series.getDouble(index, Values.DAY_HIGH)

And eventually use those to plot your line.
I have no code for that yet, since I did not need it until now. I guess you could either draw a set of lines between 2 points (and repeat that a number of times, so it will become one longer line) or plot a path over all the points you stored/looked up.
I suggest you look into the SDK's 'standard MW Studies' for a Study that does exactly this and then copy that code.

Let us know if it works or not, and how you implemented it. It might one day serve others

Thank you so much , i sure will , i appreciate all your help Spin