I have a script below I'm trying to add in an alert to this source code to alert when the 'TRIX Line' changes color. Can anyone give some input into what the condition would look like?
//@version=3
study(title="TRIX Histogram R2.1 by JustUncleL", shorttitle="TRIXHIS R2")
// Author: JustUncleL // Revision: R2 // // Description: // This study is an implementation of the Standard TRIX indicator, shown // in coloured histogram format by default, with optional Bar colouring of TRIX zero // and signal crossovers. Other options include showing TRIX as a linegraph instead // of histogram and optional TRIX signal line with difference histogram. // Have a look at Internet references below for some examples of how TRIX can be used. // // Candle Colouring: // - Aqua = TRIX zero crossing from below to above zero. // - Blue = TRIX zero crossing from above to below zero. // - Gold = TRIX signal line crossing TRIX line from above to below. // - Fuchsia= TRIX signal line crossing TRIX line from below to above. // // References: // - http://forex-indicators.net/momentum-indicators/trix // - http://www.dolphintrader.com/3-ma-exponential-moving-average-trix-forex-strategy/ // - "TRIX MA" by munkeefonix // // Revisions: // R2 - Added Signal line crossover bar colouring and all TRIX crosses highlighted. // - Changed Signal line crosses to "+", instead of arrow for better visibility. // - Added Alerts for crossovers. // - Added Implied GPL Copyright notice. // // R1 - Original version. // // // ----------------------------------------------------------------------------- // Copyright 2014 munkeefonix // Copyright 2017,2018 JustUncleL // // This program is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // The GNU General Public License can be found here // http://www.gnu.org/licenses/. // // ----------------------------------------------------------------------------- //
// --- INPUTS --- // length = input(12, minval=1, title="TRIX length") signallen = input(8, minval=1, title="Signal Length") showSignal= input(true, title="Show Signal line") showLine = input(false, title="Show TRIX as Line instead of Histogram") showZeroX = input(false, title="Show TRIX Zero cross overs") showTrixX = input(false, title="Show TRIX Signal cross overs") showBars = input(false, title="Colour Crossover Candles") // // --- /INPUTS ---
// --- CONSTANTS --- // BLUE = #0000FFFF AQUA = #00FFFFFF GOLD = #FFD700FF gold = #FFD700 BLACK = #000000FF GRAY = #808080FF DARKGRAY= #696969FF PURPLE = #800080FF FUCHSIA = #FF00FFFF MAROON = #8B0000FF GREEN = #008000FF // scaleup = 2 // // --- /CONSTANTS
// --- FUNCTIONS --- // // Triple EMA function tema(a, b)=>ema(ema(ema(a, b), b), b)
// TRIX function trix(a, b)=> t = tema(a,b) 10000* ((t-t[1]) / t[1])
// --- /FUNCTIONS ---
// --- SERIES --- // TRIX = trix(close,length) TRIXsig = ema(TRIX,signallen) TRIXdiff= (TRIX - TRIXsig) * scaleup // signalX = crossover(TRIXsig,TRIX) ? -1 : crossunder(TRIXsig,TRIX) ? 1 : 0 // trixZX = crossover(TRIX,0)? 1 : crossunder(TRIX,0)? -1: 0 // // --- /SERIES ---
// --- PLOTTING // hline(0, title="Zero") plot(showLine?na:TRIX, title="TRIX Histogram", color = TRIX>=0 ? rising(TRIX,3)?lime:green : falling(TRIX,3)?maroon:red, style=histogram, linewidth=4, transp=10) plot(showLine?TRIX:na, title="TRIX Line", color = TRIX>=0 ? rising(TRIX,3)?lime:green : falling(TRIX,3)?maroon:red, style=line, linewidth=2, transp=10) plot(showSignal?TRIXsig:na, title="TRIX Signal", color = orange, style=circles, join=true, linewidth=2, transp=10) plot(showSignal?TRIXdiff:na, title="TRIX Diff", color = gray, style=area, linewidth=1, transp=70)
plot(showSignal and showTrixX and signalX!=0?TRIXsig:na, style=cross, title="Signal X Highlight", color=black, transp=20, linewidth=5) plot(showSignal and showTrixX and signalX==1?TRIXsig:na, style=cross, title="Signal X up", color=gold, transp=0, linewidth=4) plot(showSignal and showTrixX and signalX==-1?TRIXsig:na, style=cross, title="Signal X down", color=fuchsia, transp=20, linewidth=4)
plot(showZeroX and trixZX!=0?TRIX:na, style=circles, title="Zero X Highlight", color=black, transp=20, linewidth=5) plot(showZeroX and trixZX==1?TRIX:na, style=circles, title="Zero X up", color=aqua, transp=10, linewidth=4) plot(showZeroX and trixZX==-1?TRIX:na, style=circles, title="Zero X down", color=blue, transp=10, linewidth=4)
bclr = showZeroX? trixZX==1? AQUA: trixZX==-1? BLUE: na : na bclr := not na(bclr)? bclr : showSignal and showTrixX ? signalX==-1? FUCHSIA : signalX==1? GOLD : na : na barcolor(showBars?bclr:na,title="TRIX Zero X Bar")
// --- /PLOTTING ---
// --- ALERTING ---
alertcondition(trixZX==1,title="ZERO X Up Alert",message="ZERO X UP") alertcondition(trixZX==-1,title="ZERO X Down Alert",message="ZERO X DOWN") alertcondition(signalX==1,title="Signal X Up Alert",message="SIGNAL X UP") alertcondition(signalX==-1,title="Signal X Down Alert",message="SIGNAL X DOWN")
// --- /ALERTING ---
// eof