Editing an existing IRectangle

July 12th, 2013, 07:01 AM

hey guys,

is there a possibility to edit an existing IRectangle Object on a chart?
i tried something like this without any success:

Code

foreach(IDrawObject o in DrawObjects)
{
    if(o.DrawType == DrawType.Rectangle)
    {
        IRectangle rec = (IRectangle)o;
        
        if(rec.EndTime < Time[0])
        {
            rec.EndTime = Time[0];
        }
    }
}

the idea is to create a little helper indicator which automatically expands my drawn support / resistance areas.

thank you and cheers,
mike

July 12th, 2013, 09:16 AM

you may find the code you need in this thread I think

ChartHelper in a Strategy

Warning, this is a bit tricky/high level problem.
Some of our very good coders, Mindset, bukkan, gomi, eDanny, Fat Tails, ... may have an idea.

I've been playing with ChartHelper.cs, which allow nice things, like calculate the price of the bar number, …

August 3rd, 2013, 02:10 AM

hey cory,

thank you for your reply but i cant find any reference in that thread.
the problem is, that if i draw a rectangle for a support or resistance area by using the drawing tools and then try to edit that rectangle in ninjascript, i am able to get the values but i cant edit the object itself.

if i delete the existing object and replace it with a new one created by the indicator, it becomes a drawobject of the indicator and i cant just delete it by hand.

any ideas?

August 13th, 2013, 06:58 PM

mk77ch

hey cory,

thank you for your reply but i cant find any reference in that thread.
the problem is, that if i draw a rectangle for a support or resistance area by using the drawing tools and then try to edit that rectangle in ninjascript, i am able to get the values but i cant edit the object itself.

if i delete the existing object and replace it with a new one created by the indicator, it becomes a drawobject of the indicator and i cant just delete it by hand.

any ideas?

You might trying mentioning @cory

Mike

August 27th, 2013, 07:57 PM

mk77ch

hey cory,

thank you for your reply but i cant find any reference in that thread.
the problem is, that if i draw a rectangle for a support or resistance area by using the drawing tools and then try to edit that rectangle in ninjascript, i am able to get the values but i cant edit the object itself.

if i delete the existing object and replace it with a new one created by the indicator, it becomes a drawobject of the indicator and i cant just delete it by hand.

any ideas?

If you set AllowRemovalOfDrawObjects to true in the Initialize method, you will be able to manually delete the draw objects.

AllowRemovalOfDrawObjects

Editing an existing IRectangle

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Editing an existing IRectangle