[e2] Drawing Library :: Horizontal Ray

٣١ يناير ٢٠٢٢

█ OVERVIEW
Library "e2hray"
A drawing library that contains the hray() function, which draws a horizontal ray/s with an initial point determined by a specified condition. It plots a ray until it reached the price. The function let you control the visibility of historical levels and setup the alerts.

█ HORIZONTAL RAY FUNCTION
hray(condition, level, color, extend, hist_lines, alert_message, alert_delay, style, hist_style, width, hist_width)
  Parameters:
    condition: Boolean condition that defines the initial point of a ray
    level: Ray price level.
    color: Ray color.
    extend: (optional) Default value true, current ray levels extend to the right, if false - up to the current bar.
    hist_lines: (optional) Default value true, shows historical ray levels that were revisited, default is dashed lines. To avoid alert problems set to 'false' before creating alerts.
    alert_message: (optional) Default value string(na), if declared, enables alerts that fire when price revisits a line, using the text specified
    alert_delay: (optional) Default value int(0), number of bars to validate the level. Alerts won't trigger if the ray is broken during the 'delay'.
    style: (optional) Default value 'line.style_solid'. Ray line style.
    hist_style: (optional) Default value 'line.style_dashed'. Historical ray line style.
    width: (optional) Default value int(1), ray width in pixels.
    hist_width: (optional) Default value int(1), historical ray width in pixels.
  Returns: void

█ EXAMPLES
 • Example 1. Single horizontal ray from the dynamic input.

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 • Example 2. Multiple horizontal rays on the moving averages cross.

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 • Example 3. Horizontal ray at the all time highs with an alert.

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ملاحظات الأخبار

v2
- xloc context switched from 'bar_index' to 'time'.
- alert_delay should be declared in minutes instead of bars.
- deep history reference bug fixed.