I want to perform some geometric operations on chart, but I don't know how to define X axis in pips.
- Multiple candle sizes in EA.
- Defining X Axis Range
- How to track changes in grid height?
Horizontal axis is time not distance.
- There is no angle from 2 anchor points. An angle requires distance divided by distance; a unit-less number. A chart has price and time. What is the angle of going 30 miles in 45 minutes? Meaningless!
- You can get the slope from a trendline: m=ΔPrice÷ΔTime. Changing the axes scales changes the apparent angle, the slope is constant. Angle is meaningless.
- You can create an angled line using one point and setting the angle (Object Properties - Objects Constants - Standard Constants, Enumerations and Structures - MQL4 Reference.) The line is drawn that angle in pixels. Changing the axes scales does NOT change the angle (and thus is meaningless.)
- If you insist, take the two price/time coordinates, convert them to pixel coordinates and then to apparent angle with arctan.
How to get the angle of a trendline and place a text object to it? - Trend Indicators - MQL4 programming forum - Page 2
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