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How to draw a horiz line?
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kneighbour View Drop Down
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Joined: 12 Feb 2005
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Posts: 57 		Post Options Post Options   Quote kneighbour Quote  Post ReplyReply Direct Link To This Post Topic: How to draw a horiz line?
    Posted: 27 Feb 2005 at 1:40pm

What i would like to do is draw a horizontal line at a calclated level.

ie I want to draw a line at a set price (say $3.00) - how is this done?

 

 
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Peter View Drop Down
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Posts: 241 		Post Options Post Options   Quote Peter Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb 2005 at 9:42am
If you want to draw some fixed horizontal lines, use the horzline attribute. Eg: [horzline=20,80]

If you want to draw a calculated line, just make the calculation and return it as a result. Eg:
3*5;

If you want to make the calculation based on current prices, etc, then use the lastvalue function. Eg:
lastvalue( Low * 0.9);

This will calculate the result for the last bar and return that result on every bar.
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kneighbour View Drop Down
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Posts: 57 		Post Options Post Options   Quote kneighbour Quote  Post ReplyReply Direct Link To This Post Posted: 28 Feb 2005 at 8:09pm

Originally posted by Peter

If you want to draw some fixed horizontal lines, use the horzline attribute. Eg: [horzline=20,80]

The way I read the manual, this puts lines at (in this example) the 20% and 80% points. Presumable on an oscillator. For aprice chart would I use

[horzline=1.23]   (for a line at $1.23)

Originally posted by Peter


If you want to draw a calculated line, just make the calculation and return it as a result. Eg:
3*5;

So this would be [horzline=3*5]   ??

 

Originally posted by Peter


If you want to make the calculation based on current prices, etc, then use the lastvalue function. Eg:
lastvalue( Low * 0.9);

So this would be [horzline=lastvalue( Low * 0.9)]   ??

Originally posted by Peter


This will calculate the result for the last bar and return that result on every bar.

This raises a good point - presumably this would fill the screen with horizontal lines? Can you alter the width of a line?
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Peter View Drop Down
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Posts: 241 		Post Options Post Options   Quote Peter Quote  Post ReplyReply Direct Link To This Post Posted: 01 Mar 2005 at 10:53am
The horzline attribute only allows fixed numbers to be entered. (not calculations). Therefore, to get around the problem, we just return the calculation as a normal plot, but in such a way that it always returns the same result and appears as a horizontal line. (this is how people usually achieve horizontal lines in Metastock scripts).

Eg:

{Fixed horizontal line}
[horzline=20,80]

{Calculated horizontal line)
5*10;

{Calculated horizontal line based on price info }
lastvalue( Low * 0.9)
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