Hi,

How can I access a horizontal line object drawn by hand on the chart from within a strategy ? The chart.getAll() function cannot do it.

Hi,
After a chart object creation it is necessary to add it to to the main chart. Please consider the following code for creating and getting the horizontal line object:

IChart.addToMainChart(chart.getChartObjectFactory().createHorizontalLine("key123"));
IChartObject object = chart.get("key123");
List<IChartObject> objects  =chart.getAll();
for (IChartObject chartObject: objects){
    console.getOut().println("Chart object from collect: " + chartObject);
}

Hi Support,

It does not seem to work. I want to add several horizontal lines to my chart while my strategy is running . My strategy should get all horizontal line objects on the fly then. Is that possible with jForex? I had a feeling that no hand drawn object can be accessed from within the strategy.

Thanks!

Currently you can add a horizontal line to the chart using the IChart.draw method:

IChart.draw("hLine", IChart.Type.HLINE, history.getLastTick(Instrument.EURUSD).getTime(), history.getLastTick(Instrument.EURUSD).getAsk());

IChartObjectFactory.createHorizontalLine(String key) will be available soon.

For more details about IChart interface, please assume the following JForex Wiki page: https://www.dukascopy.com/wiki/index.php?title=IChart

Hi Support,

Another question: if I selected a horizontal line object from the "Drawings" Toolbox of Jforex platform and draw it using my mouse on the chart. How can get the price of that horizontal trendline from within my strategy? I cannot get that horizontal line object with chart.getAll() function inside my strategy, it gives me "0".

Thanks!

Hi Support,

If I drew a horizontal line on the same chart from the "Drawings" Jforex platform menu how can I get the price of that horizontal line in my strategy?
The chart.getAll() function returns 0 only. Is it possible at all? if yes how?

Thanks

Hi,

as of now you can only access objects that have been created by the strategy.
However, you can add objects from within the strategy that you then can move manually by using addToMainChartUnlocked().
I've registered a feature request a long time ago to be able to retrieve chart objects that have been added manually from within strategies, but such a feature is not available as of yet.

Hope this helps...
Best, RR.

Hello!

draw method from IChart was market as deprecated. Could you please provide some examples of usage ChartObjectFactory because wiki contains only outdated information.
What we a looking is possibility draw horizontal lines through all screen.

Hi,
Please have a look at the following code:

  import java.awt.Color;
  import com.dukascopy.api.drawings.IChartObjectFactory;
  import com.dukascopy.api.drawings.IHorizontalLineChartObject;
  ...
  this.history = context.getHistory();
  ...
  double price = history.getLastTick(Instrument.EURUSD).getAsk();
  IChart chart = context.getChart(Instrument.EURUSD);   
  IChartObjectFactory factory = chart.getChartObjectFactory();   
  IHorizontalLineChartObject hline = factory.createHorizontalLine("hline", price);
  hline.setColor(Color.RED);
  chart.addToMainChartUnlocked(hline);

Hello Support,

IChart method addToMainChartUnlocked() is depricated according to JavaDoc - see https://www.dukascopy.com/client/javadoc ... Unlocked(T) .
But if I use addToMainChart() instead I'm not able to access the automatically created horizontal line in the chart, that is drag the line per mouse is not possible. Only if I create the HLine with addToMainChartUnlocked() I can access it manually.

Regards
AbsoluteReturner

Please be advised that the deprecation of the method is in force starting with JForex API 2.6.43, which is currently available only in standalone version. The JForex client uses JForex API 2.6.38, so that is why there is no such deprecation and that is why the suggested deprecated method alternative does not work. The change will be in force in JForex client with the next release, follow the release information here: viewforum.php?f=71

Hello Support,

is it possible to lock a ChartObject [which was added to chart using addToMainChartUnlocked()] temporarily at runtime ? If yes - can you please provide a solution how to do this, both in current API version 2.6.38 and in futher version 2.6.43 ?
I want to use a HorizontalLineChartObject in a strategy to determine an initial stoploss level per mouse. Then I want to open a trade with a click on a button created in the BottomTab. During the trade is open the HorizontalLineChartObject should be locked, and after the trade is closed it should be unlocked agin.

If this is not possible, a function like
IChart.setChartObjectEnabled(IChartObject object, boolean enabled) and / or
IChart.setChartObjectEnabled(String key, boolean enabled)
would be helpful.

Regards
AbsoluteReturner

Please see the following example in JForex wiki:
https://www.dukascopy.com/wiki/index.php ... rt_objects