How to draw horizontal lines marking price

[Freeman]

I'm trying to write an EFS that will draw horizontal lines marking prices at regular intervals. For instance, if I were trading ES and I wanted to mark point intervals, i'd get lines at 850, 851, 852, etc.

Before I started on it I thought i'd ask if anyone knew if an EFS that did this already existed. I'm not sure how long it will take me to stumble through EFS code till I get something that works!

Of course I won't decline any code that someone can whip up on the spot. =)

Thanks for any help.

[TURLIES]

Hi Freeman,
I created this .efs study in the Formula Wizard to use with the Dow - simply change the price levels / lines colors etc for your requirements (important - change the price levels in both the DATA PLOTS SECTION AND RETURNED DATA POINTS SECTION.)

Paul

[ACM]

Freeman
You may find something that fits your needs in this thread and specifically the sr lines.efs and sr lines-2.efs.
These scripts will plot lines based on a number of pre-calculated values or based on a typed-in value.
Even if not quite what you want it should still give you an idea as to how to create an efs that can plot these lines automatically.
Alex

[Freeman]

Thank you both for your help. It can't be said enough: users of this BBS add a lot of value.

I used the examples to create an efs that will draw lines between defined price points. It's sloppy but it's robust enough for my needs.

function preMain()
{
setPriceStudy(true);
}

// globals
var nID = 0;
var timedist = -404; // length of line
var startprice = 870; // price to start drawing at
var endprice = 885; // price to stop drawing at
var x;

function preMain()

{
setPriceStudy(true);
}

function main()
{

// make sure bars are done drawing before drawing lines
if ( getCurrentBarIndex() < -1 )
{
return;
}


for (x=startprice; x<=endprice; x++)
{
drawLineAbsolute(timedist, x, 10, x, PS_DASH, 1, Color.blue, ID());
}

return;
}


// function assigns unique identifier to line drawing
function ID()
{
nID ++;
return( nID );
}