Hi
With the last version of the API draw methods of the IChart are marked as deprecated.

So the question is, how to use the factory methods of IChartObjectFactory?
How to pass parameters to an objects on method invocation. What parameters to send?

Cannot find any example in the api, wiki or docs.

I'm trying to draw a simple rectangle with the new methods.

Thanks in advance.
Jorge

Hi,
To draw rectangle using IChartObjectFactory please consider the following code:

public void onStart(IContext context) throws JFException {
this.engine = context.getEngine();
this.console = context.getConsole();
this.history = context.getHistory();
this.context = context;
this.indicators = context.getIndicators();
this.userInterface = context.getUserInterface();

IChart chart = context.getChart(Instrument.EURUSD);

rectangle = chart.getChartObjectFactory().createRectangle();
rectangle.setTime(0, System.currentTimeMillis());
rectangle.setTime(1, System.currentTimeMillis() - 10 * 60 * 1000);
rectangle.setPrice(0, 1.3600);
rectangle.setPrice(1, 1.35024);

chart.addToMainChart(rectangle);
}

And how do you remove the rectangle again?

What are the setAttrInt(IChartObject.ATTR_INT.CORNER, <value>) and setAttrInt(IChartObject.ATTR_INT.XDISTANCE, value>) and setAttrInt(IChartObject.ATTR_INT.YDISTANCE, <value>) methods for? They seem to have no effect!? For example, I would like to place an object at (fixed) pixel position corner+xdistance/corner+ydistance, instead of time/price..

To remove the rectangle from the chart, you need to declare IChart object as a class variable/field and call the removeAll() method. Consider the following code:

   public void onStop() throws JFException {
      chart.removeAll();
   }

IChartObject.setAttrInt() will be fixed, please follow the isuue status: viewtopic.php?f=40&t=24530.

Please maintain the javadoc IChartObjectFactory ( https://www.dukascopy.com/client/javadoc/ ) urgently!

Example:

IHorizontalLineChartObject    createHorizontalLine(Object... params) 

What does "Object... params" mean?

I have to use the new way, because e.g.

setAttrDouble(IChartObject.ATTR_DOUBLE.PRICE1, price)

in IChartObject does not work any more!!

We advice to use the IChartObjectFactory to draw on a chat, because many IChartObject methods are deprecated. Please take a look at the following topic: viewtopic.php?f=7&t=25837

I have many problems with the new system IChartObjects. I don't know how to handle them (the java doc is catastrophic) and the old functions are very unsecure, because they are not working.

Please finish developing and testing first before you public new functions and leave the old deprecated!