Re: [amibroker] $64,000.00 Question for Tomasz?, AmiBroker Email List Archive

I use a simpler technique, once posted you can modify it to your hearts content.

That would be awesome Herman. I really appreciate you being so generous with all of your time and efforts.

Is it possible once lines are plotted using the Study function to drag them around the chart, like is possible with the any of the drawing tools?

Again thanks for your generosity,

Bruce

From: Herman [mailto:psytek@xxxxxxxx]

Sent: Sunday, March 16, 2008 1:00 AM

To: KBH

Cc: amibroker@xxxxxxxxxxxxxxx

Subject: Re: [amibroker] $64,000.00 Question for Tomasz?

If i may jump in...

I have several chart trading applications but I need to verify the code before posting... IBc and AFL now have all essential functions to create a very nice chart trading application with automatic order placement/modification. The only things missing are are a few pixel functions (see suggestion) that are required to develop precise chart-overlays, however i am confident these functions will follow - hopefully soon ;-)

Perhaps the quickest way to share chart-trading code is to do it in Blog fashion, the same way I did the Button series. The user can then use the ideas and go their own way or can set tight and wait for the code to reach the required functional level. When such series reach maturity (ever?) we can delete all preceding development posts and just keep the last one - or let the earlier posts remain there to show how the development progress worked - not sure which way to go. Code written by me is never finished...there are always new ideas.

While writing this i made the decision: I have created a Chart-Trading Category under Real-Time AFL Applocations and will start publishing some of the programming techniques there soon.

Keep watching for new posts :-)

best regards,

herman

For tips on developing Real-Time Auto-Trading systems visit:

http://www.amibroker.org/userkb/

Sunday, March 16, 2008, 5:57:50 AM, you wrote:

After going thru the 4 different methods you suggested for drawing lines, I come to the conclusion that

using the drawing tool “horizontal line” would be the most effective way to implement direct chart trading.

I realize I can draw 3 horizontal lines on the chart and then modify the properties as needed: color, study ID, etc…

but that is not efficient.

Also since the actual trading parameters would need to be in AFL it seems only logical to control horizontal lines at code level also.

So for the $64,000.00 question; Is it possible to create/access/control all of the properties that make up the “horizontal line” from the draw toolbar and reference them in AFL code?

Thanks for your reponse.

From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of Tomasz Janeczko

Sent: Saturday, March 15, 2008 11:38 AM

To: amibroker@xxxxxxxxxxxxxxx

Subject: Re: [amibroker] Question for Tomasz?

Hello,

You can draw your lines using FOUR different methods:

a) PlotGrid - this function allows to plot horizontal grid line at any leve (the easiest method)

Plot( C, "Price", colorBlack, styleCandle );

PlotGrid( LastValue( Close ), colorRed ); // this example plots horizontal line at the value of last close

b) Plot - using regular Plot you are able to plot any line including horizontal lines:

Plot( C, "Price", colorBlack, styleCandle );

Plot( LastValue( C ), "LastClose", colorRed ); // this example plots horizontal line at the value of last close

c) you can draw trendlines (not only horizonal) using combination of Plot and LineArray:

Examples here:

http://www.amibroker.com/f?linearray

d) you can draw ANYTHING you can imagine, using low level gfx:

http://www.amibroker.com/guide/a_lowlevelgfx.html

Best regards,

Tomasz Janeczko

amibroker.com

----- Original Message -----

From: KBH

To: amibroker@xxxxxxxxxxxxxxx

Sent: Saturday, March 15, 2008 8:50 PM

Subject: [amibroker] Question for Tomasz?

Tomasz,

Are the properties that define the drawing tools somewhere in an AFL code? In other words I want to be able to

create a horizontal trend line thru AFL code and be able to control its behavior in my code.

The goal is trading from price chart by creating horizontal trend lines that would trigger entries, set stops and

targets, with a click of a button I want to place 3 or more trend lines in price pane and then be able to adjust

there location, once set then arm them and when price crosses orders are sent out.

I understand that I could use the horizontal trend line drawing tool to create 3 trend lines then go to properties

and set the study ID of each line. But I want to automate the process thru AFL.

Thanks for your input.

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