LUA Reference Guide
2.9
2.9
  • EdgeTX 2.9 Lua Reference Guide
  • Introduction
    • Acknowledgments
    • Getting Started
  • Script Type Overview
    • Custom (Mixer) Scripts
    • Telemetry Scripts
    • One-Time Scripts
    • Function Scripts
    • Widget Scripts
  • EdgeTX Lua API Programming Guide
    • Lua Basics
    • Loading Code Modules Dynamically
    • Saving Memory
    • Using Key and Touch Events
    • Drawing Flags and Colors
    • Data Exchange with the EdgeTX Model Setup
    • Included Lua Libraries
      • io Library
        • io.open()
        • io.close()
        • io.read()
        • io.write()
        • io.seek()
  • EdgeTX Lua API Reference
    • Constants
      • Key Event Constants
      • Touch Event Constants
      • Flags and Pattern Constants
      • Color Constants
      • Special Character Constants
      • Screen Constants
      • Logical Switch Function Constants
      • Special Function Constants
      • Widget Options Constants
    • General Functions
      • GREY()
      • accessTelemetryPush()
      • chdir(directory)
      • crossfireTelemetryPop()
      • crossfireTelemetryPush()
      • defaultChannel(stick)
      • defaultStick(channel)
      • flushAudio()
      • getAvailableMemory()
      • getDateTime()
      • getFieldInfo(source)
      • getFlightMode(mode)
      • getGeneralSettings()
      • getGlobalTimer()
      • getLogicalSwitchValue(id)
      • getOutputValue(outputIndex)
      • getRAS()
      • getRSSI()
      • getRotEncMode()
      • getRotEncSpeed()
      • getRtcTime()
      • getShmVar(id)
      • getSourceIndex(sourceName)
      • getSourceName(sourceIndex)
      • getSourceValue(source)
      • getSwitchIndex(positionName)
      • getSwitchName(switchIndex)
      • getSwitchValue(switchIndex)
      • getTime()
      • getTxGPS()
      • getUsage()
      • getValue(source)
      • getVersion()
      • ghostTelemetryPop()
      • ghostTelemetryPush()
      • killEvents(key)
      • loadScript(file [, mode], [,env])
      • multiBuffer(address[,value])
      • playDuration(duration [, hourFormat])
      • playFile(name)
      • playHaptic(duration, pause [, flags])
      • playNumber(value, unit [, attributes])
      • playTone(frequency, duration, pause [, flags [, freqIncr]])
      • popupConfirmation(title, message, event)
      • popupInput(title, event, input, min, max)
      • popupWarning(title, event)
      • resetGlobalTimer([type])
      • serialGetPower(port_nr)
      • serialRead([num])
      • serialSetPower(port_nr, value)
      • serialWrite(str)
      • setSerialBaudrate(baudrate)
      • setShmVar(id, value)
      • setStickySwitch(id, value)
      • setTelemetryValue(id, subID, instance, value [, unit [, precision [, name]]])
      • sources([first[, last]])
      • switches([first[, last]])
      • sportTelemetryPop()
      • sportTelemetryPush()
    • Model Functions
      • model.defaultInputs()
      • model.deleteFlightModes()
      • model.deleteInput(input, line)
      • model.deleteInputs()
      • model.deleteMix(channel, line)
      • model.deleteMixes()
      • model.getCurve(curve)
      • model.getCustomFunction(function)
      • model.getFlightMode(index)
      • model.getGlobalVariable(index, flight_mode)
      • model.getInfo()
      • model.getInput(input, line)
      • model.getInputsCount(input)
      • model.getLogicalSwitch(switch)
      • model.getMix(channel, line)
      • model.getMixesCount(channel)
      • model.getModule(index)
      • model.getOutput(index)
      • model.getSensor(sensor)
      • model.getSwashRing()
      • model.getTimer(timer)
      • model.insertInput(input, line, value)
      • model.insertMix(channel, line, value)
      • model.resetSensor(sensor)
      • model.resetTimer(timer)
      • model.setCurve(curve, params)
      • model.setCustomFunction(function, value)
      • model.setFlightMode(index, params)
      • model.setGlobalVariable(index, flight_mode, value)
      • model.setInfo(value)
      • model.setLogicalSwitch(switch, value)
      • model.setModule(index, value)
      • model.setOutput(index, value)
      • model.setSwashRing(params)
      • model.setTimer(timer, value)
    • Lcd Functions
      • Lcd Functions Overview
      • lcd.RGB(r, g, b | rgb)
      • lcd.clear([color])
      • lcd.drawAnnulus(x, y, r1, r2, start, end [, flags])
      • lcd.drawArc(x, y, r, start, end [, flags])
      • lcd.drawBitmap(bitmap, x, y [, scale])
      • lcd.drawBitmapPattern(bitmap, x, y [, flags])
      • lcd.drawBitmapPatternPie(bitmap, x, y, startAngle, endAngle [, flags])
      • lcd.drawChannel(x, y, source, flags)
      • lcd.drawCircle(x, y, r [, flags])
      • lcd.drawCombobox(x, y, w, list, idx [, flags])
      • lcd.drawFilledCircle(x, y, r [, flags])
      • lcd.drawFilledRectangle(x, y, w, h [, flags])
      • lcd.drawFilledTriangle(x1, y1, x2, y2, x3, y3 [, flags])
      • lcd.drawGauge(x, y, w, h, fill, maxfill [, flags])
      • lcd.drawHudRectangle(pitch, roll, xmin, xmax, ymin, ymax [, flags])
      • lcd.drawLine(x1, y1, x2, y2, pattern, flags)
      • lcd.drawLineWithClipping(x1, y1, x2, y2, xmin, xmax, ymin, ymax, pattern [, flags])
      • lcd.drawNumber(x, y, value [, flags [, inversColor]])
      • lcd.drawPie(x, y, r, start, end [, flags])
      • lcd.drawPixmap(x, y, name)
      • lcd.drawPoint(x, y)
      • lcd.drawRectangle(x, y, w, h [, flags [, t]])
      • lcd.drawScreenTitle(title, page, pages)
      • lcd.drawSource(x, y, source [, flags])
      • lcd.drawSwitch(x, y, switch, flags)
      • lcd.drawText(x, y, text [, flags [, inversColor]])
      • lcd.drawTextLines(x, y, w, h, text [, flags])
      • lcd.drawTimer(x, y, value [, flags [, inversColor]])
      • lcd.drawTriangle(x1, y1, x2, y2, x3, y3 [, flags])
      • lcd.exitFullScreen()
      • lcd.getColor(flags)
      • lcd.getLastLeftPos()
      • lcd.getLastPos()
      • lcd.getLastRightPos()
      • lcd.invertRect(x, y, w, h [, flags])
      • lcd.refresh()
      • lcd.resetBacklightTimeout()
      • lcd.setColor(colorIndex, color)
      • lcd.sizeText(text [, flags])
    • Bitmap Functions
      • Bitmap.getSize(name)
      • Bitmap.open(name)
      • Bitmap.resize(bitmap, width, height)
      • Bitmap.toMask(bitmap)
    • Filesystem
      • dir(directory)
      • fstat(path)
      • del(file or directory)
  • Advanced Topics
    • Lua data sharing across scripts
    • Debugging techniques
    • Speed/memory optimizaton tricks
  • Appendix
    • Fonts
    • Units
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  • Parameters
  • Return value
  • Notice

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  1. EdgeTX Lua API Reference
  2. Lcd Functions

lcd.drawLine(x1, y1, x2, y2, pattern, flags)

Previouslcd.drawHudRectangle(pitch, roll, xmin, xmax, ymin, ymax [, flags])Nextlcd.drawLineWithClipping(x1, y1, x2, y2, xmin, xmax, ymin, ymax, pattern [, flags])

Last updated 2 years ago

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Draw a straight line on LCD

@status current Introduced in 2.0.0, flags introduced in 2.3.6

Parameters

  • x1,y1 (positive numbers) starting coordinate

  • x2,y2 (positive numbers) end coordinate

  • pattern SOLID or DOTTED

  • flags (optional) please see and constants

Return value

none

Notice

If the start or the end of the line is outside the LCD dimensions, then the whole line will not be drawn (starting from OpenTX 2.1.5)

flags
color