I would like to know if anyone knows how to code an angled trendline.
I am wanting to draw an angled trendline from point a to point b then point c etc,
After I have coded the angled trendlines then I would like to store the angles from
each trendline and put them in an array for later us.
If anyone has any pointers that would be great
Angle and slope are synonymous.
Draw a line with a slope of 0.618 for example:
string name = "a";
double theSlope= 0.618;
int startBar = 39;
int runBars = 7;
double price = Close[startBar];
if(ObjectFind(name) != -1) ObjectDelete(name);
ObjectCreate(name, OBJ_TREND, 0, Time[startBar], price, Time[startBar-runBars], price + (runBars * theSlope * Point));
angle = MathArctan(theSlope)/ 3.1415965 * 180;
Comment("The angle of line "+name+" is "+DoubleToStr(angle, 2)+" degrees");
By rearranging things a bit, you can find the angle of an arbitrary line, or draw
a line at an arbitrary angle.
The angle will be "visually" correct only on a squared chart (in chart
properties scale fix 1:1).
Thanks for your input, had me a lot
Trendline by angle is usable on a squared chart only. It is a "visual"
angle tied to the monitor, not the chart.
A 45 degree Trendline by Angle is a visual 45 degree line on your display. zoom
in zoom out or squeeze the
vertical price scale, the line stays put at a 45 degree visual angle.
Therefore, it has no relation to time or price, unless you happen to know the ratio
of pips to time you have on
The only "known" setup is 1:1, and that is useless for higher timeframes.
For trading purposes, an angle needs to be defined in terms of price and time, thus
sticking it to the chart. In
that scenario, a 45 degree line is a slope of 1 unit of price change in 1 uint
of time change, with units defined
by your imagination or application.
Consult Geometry 101
The geometry examples use X and Y often for the coordinate system.
Q. What is the coordinate system on a chart?
A. Time and Price -- X and Y
Ponder some more...
Use bar count, not clock time