[Tams]

This thread is about drawing an arrow on the chart. (MultiCharts enhanced EasyLanguage)



Arw_New

Displays an object, consisting of an up or a down arrow located at the specified bar and specified price value, on the chart that the study is based on; returns an object-specific ID number, required to modify the object.

Usage

Arw_New (BarDate, BarTime, PriceValue, Direction)

Parameters

BarDate - a numerical expression specifying the date of the bar at which the object is to be placed;
the date is indicated in the YYYMMdd format,
where YYY is the number of years since 1900,
MM is the month,
and dd is the day of the month

BarTime - a numerical expression specifying the time of the bar at which the object is to be placed;
the time is indicated in the 24-hour HHmm format, where 1300 = 1:00 PM

PriceValue - a numerical expression specifying the price value (vertical position,
corresponding to a value on the price scale of a chart), where the object is to be placed

Direction - a logical expression specifying the direction of the arrow;
True = Down and False = Up

Example

Place, on the chart that the study is based on, an up arrow at the top of a bar if the Open price has increased incrementally over the last three bars:

If Open>Open[1] And Open[1]>Open[2] Then
Value1 = Arw_New(Date, Time, High, False);

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Arw_New_self

Displays the arrow on the SubChart.

[Tams]

associated key keywords:


Arw_New_s
Arw_New_self_s

Arw_Delete

Arw_SetColor
Arw_SetLocation
Arw_SetLocation_s
Arw_SetSize
Arw_SetStyle
Arw_SetText
Arw_SetTextAttribute
Arw_SetTextBGColor
Arw_SetTextColor
Arw_SetTextFontName
Arw_SetTextSize

[Tams]

Here's a demo.

The arrow is placed when the short term moving average crosses the long term moving average.

[aaa]

// author: aaa
// date: 20090516
// added all formatting possibilities

[aaa]

Tams, It's nice to extract such interesting possibilitie

May I ask a question ?

After that avg.st crossed above avg.lt how to compute x points above the X and draw an other arrow?

Pseudo Code

if avg.st crosses above avg.lt = OK

if price > (OK + 3 points) then
id.arw = ARW_new(date, time, OK + 3 points [1], false);

if price > (OK + 5 points) then
id.arw = ARW_new(date, time, OK + 5 points [1], false);

[Tams]

each ID can only be used once per bar.
if you want another arrow on the same bar, you have to define another ID.

e.g.

var:
id.arw2(-1);

id.arw2 = ARW_new(date, time, OK + 3 points [1], false);

[Tams]

let's take one step further:

...number converted to text... then added to the arrow.

[aaa]

Nonono sir

It's my fault = my explanations are always complicates

Is it Better with a graph ?