本页源码来自 TradingView 公开发布的开源脚本，版权归原作者所有， 请遵循其原始许可（Pine 脚本常见 CC BY-NC-SA / MPL-2.0 / MIT）。 本项目仅用于研究检索与许可范围内的移植。
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © TradingView
//@version=5
indicator("Chart VWAP", overlay = true)
// Visible Chart Range
// v1 2022.07.11
// This code was written using the recommendations from the Pine Script™ User Manual's Style Guide:
// https://www.tradingview.com/pine-script-docs/en/v5/writing/Style_guide.html
import PineCoders/VisibleChart/1 as PCvc
// ———————————————————— Constants and Inputs {
// Constants
string AVG_TT = "Enables the average price line for all visible chart bars"
string OHLC_TT = "'Show chart OHLC levels' displays 4 lines at the open, high, low, and close of the visible chart range.
\n\n'Show HL and % to Close values' displays values on the high and low levels when 'Show Chart OHLC' is also enabled.
The percentage is the distance from the current price to the level."
// Inputs
bool showAvgInput = input.bool(true, "Show Bar Average", tooltip = AVG_TT)
bool showOhlcInput = input.bool(false, "Show chart OHLC levels ", inline = "11")
bool showLevelInput = input.bool(true, "Show HL and % to Close values", inline = "11", tooltip = OHLC_TT)
// }
// ———————————————————— Functions {
// @function Sets a horizontal line to the visible chart width at a specified level.
// @param lineId (line) The line identifier.
// @param level (series float) The price level for the line.
// @returns (void) Alters the left and right points of `lineId` to the visible chart width at a specified `level`.
setChartLine(line lineId, series float level) =>
line.set_xy1(lineId, chart.left_visible_bar_time, level)
line.set_xy2(lineId, chart.right_visible_bar_time, level)
// @function Calculates the percent difference between two prices.
// @param startPrice (series float) The begining point to calculate percent from.
// @param endPrice (series float) The end point to calculate percent to.
// @returns (float) A difference in percent between the `startPrice` and the `endPrice`
percent(series float startPrice, series float endPrice) =>
float result = (startPrice - endPrice) / endPrice * 100
// }
// ———————————————————— Calculations {
// VWAP anchored on the leftmost visible bar.
float vwap = PCvc.vVwap()
// Average `close` of all visible bars.
float barAvg = PCvc.avg()
// OHLC values for the visible chart time range.
[chartOpen, chartHigh, chartLow, chartClose, chartVolume] = PCvc.ohlcv()
// }
// ———————————————————— Visuals {
// Plot the VWAP and avg bar price.
plot(PCvc.barIsVisible() and showAvgInput ? barAvg : na, "Visible Avg.", color.new(color.gray, 50), 1)
plot(vwap, "Chart VWAP", color.orange, 2)
// Relative x-coordinate time for the price/percent label (25% of the visible space's width, starting from the left).
int labelTime = PCvc.chartXTimePct(25)
// Show OHLC levels and HL values when enabled.
if showOhlcInput and barstate.islast
// Declare drawing objects once and set later.
var line chartHighLine = line.new(na, na, na, na, xloc.bar_time, extend.right, #4CAF5075, line.style_solid, 1)
var line chartLowLine = line.new(na, na, na, na, xloc.bar_time, extend.right, #f2364580, line.style_solid, 1)
var line chartOpenLine = line.new(na, na, na, na, xloc.bar_time, extend.right, color.gray, line.style_dotted, 1)
var line chartCloseLine = line.new(na, na, na, na, xloc.bar_time, extend.right, #787B8675, line.style_solid, 1)
var label chartHighLabel = label.new(na, na, "", xloc.bar_time, yloc.price, color(na), label.style_label_down, #4CAF5075)
var label chartLowLabel = label.new(na, na, "", xloc.bar_time, yloc.price, color(na), label.style_label_up, #f2364580)
// OHLC lines.
setChartLine(chartOpenLine, chartOpen)
setChartLine(chartHighLine, chartHigh)
setChartLine(chartLowLine, chartLow)
setChartLine(chartCloseLine, chartClose)
// Display high, low and percent to `close` values when enabled.
if showLevelInput
string labelFormat = "{0} ({1, number, #.##}%)"
// Reposition labels.
label.set_xy(chartHighLabel, labelTime, chartHigh)
label.set_xy(chartLowLabel, labelTime, chartLow)
// Update label values with each chart update.
label.set_text(chartHighLabel, str.format(labelFormat, str.tostring(chartHigh, format.mintick), percent(chartHigh, chartClose)))
label.set_text(chartLowLabel, str.format(labelFormat, str.tostring(chartLow, format.mintick), percent(chartLow, chartClose)))
// }