OpenTX 2.3 Lua Reference Guide
  • OpenTX 2.3 Lua Reference Guide
  • Introduction
    • Acknowledgments
    • Getting Started
  • Part I - Script Type Overview
    • Mix Scripts
    • Telemetry Scripts
    • One-Time Scripts
    • Wizard Script
    • Function Scripts
    • Widget Scripts
    • Theme Scripts
  • Part II - OpenTX Lua API Programming Guide
    • Input Table Syntax
    • Output Table Syntax
    • Init Function Syntax
    • Run Function Syntax
    • Return Statement Syntax
    • Included Lua Libraries
      • io Library
        • io.open()
        • io.close()
        • io.read()
        • io.write()
        • io.seek()
  • Part III - OpenTX Lua API Reference
    • Constants
      • Key Event Constants
    • General Functions
      • GREY()
      • accessTelemetryPush()
      • chdir(directory)
      • crossfireTelemetryPop()
      • crossfireTelemetryPush()
      • defaultChannel(stick)
      • defaultStick(channel)
      • flushAudio()
      • getAvailableMemory()
      • getDateTime()
      • getFieldInfo(name)
      • getFlightMode(mode)
      • getGeneralSettings()
      • getGlobalTimer()
      • getRAS()
      • getRSSI()
      • getRotEncSpeed()
      • getRtcTime()
      • 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, event)
      • popupInput(title, event, input, min, max)
      • popupWarning(title, event)
      • resetGlobalTimer([type])
      • serialRead([num])
      • serialWrite(str)
      • setTelemetryValue(id, subID, instance, value [, unit [, precision [, name]]])
      • setSerialBaudrate(baudrate)
      • 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(params)
      • 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)
      • lcd.clear([color])
      • lcd.drawBitmap(bitmap, x, y [, scale])
      • lcd.drawChannel(x, y, source, flags)
      • lcd.drawCombobox(x, y, w, list, idx [, flags])
      • lcd.drawFilledRectangle(x, y, w, h [, flags])
      • lcd.drawGauge(x, y, w, h, fill, maxfill [, flags])
      • lcd.drawLine(x1, y1, x2, y2, pattern, flags)
      • lcd.drawNumber(x, y, value [, 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])
      • lcd.drawTimer(x, y, value [, flags])
      • lcd.getColor(area)
      • lcd.getLastLeftPos()
      • lcd.getLastPos()
      • lcd.getLastRightPos()
      • lcd.refresh()
      • lcd.resetBacklightTimeout()
      • lcd.setColor(area, color)
    • Bitmap Functions
      • Bitmap.getSize(name)
      • Bitmap.open(name)
  • Part IV - Converting OpenTX 2.0 Scripts
    • General Issues
    • Handling GPS Sensor data
    • Handling Lipo Sensor Data
  • Part V - Converting OpenTX 2.1 Scripts
  • Part VI - Advanced Topics
    • Lua data sharing across scripts
    • Debugging techniques
    • Speed/memory optimizaton tricks
  • Part VII - Appendix
    • Fonts
    • Units
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  • Parameters
  • Return value
  • Notice
  1. Part III - OpenTX Lua API Reference
  2. Lcd Functions

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

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 lcdflags

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)

Previouslcd.drawGauge(x, y, w, h, fill, maxfill [, flags])Nextlcd.drawNumber(x, y, value [, flags])

Last updated 3 years ago