Methods

• Function DecodeMetarLine(lpszMetarLine As String) As Boolean
  This method accept one argument that contains METAR report string. If the METAR string is valid, and the MetarWeather component successfully decodes it, this function returns True value. If the METAR string is not valid, the return value is False.
• Function GetWeatherData(iWeatherField As WEATHER_FIELD) As String
  This method accept one argument that contains the weather field number, and returns the weather report string according to the field number. You should call this method only after decoding a METAR line with DecodeMetarLine method.
  For example:
  strTemperature = objMetar.GetWeatherData(wfTemperature)
  The above method call returns the temperature value according to the report information in the METAR string you have passed to DecodeMetarLine method. There are 15 different weather field values (0 - 14) that you can pass to GetWeatherData method. Click here to view the details about all weather fields.
• Function GetWeatherFieldName(iWeatherField As WEATHER_FIELD) As String
  This method accept one argument that contains the weather field number, and returns the field name. For example, calling this method with wfTemperature as argument, returns the string "Temperature".
• Function GetWeatherIcon() As WEATHER_ICON
  This method returns weather icon index that represents the current weather conditions according to the decoded METAR. For details about the values that this method returns, click here

Properties

• UnitDistance As UNIT_DISTANCE
  Returns or sets the distance unit that MetarWeather uses to display the visibility and station elevation fields. The default value is unMeter.
  You can set the following values to this property:
  • 1 - unMeter
  • 2 - unKilometer
  • 3 - unFeet
  • 4 - unMile
• UnitPrecipitation As UNIT_PREC
  Returns or sets the precipitation unit that MetarWeather uses to display precipitation amounts.
  You can set the following values to this property:
  • 41 - unPrecMillimeter
  • 42 - unPrecCentimeter
  • 43 - unPrecInch
• UnitPressure As UNIT_PRESSURE
  Returns or sets the pressure unit that MetarWeather uses to display the barometric pressure.
  You can set the following values to this property:
  • 21 - unMilibar
  • 22 - unMillimeterMercury
  • 23 - unInchOfMercury
• UnitTemperature As UNIT_TEMPERATURE
  Returns or sets the temperature unit that MetarWeather uses to display temperature and dew point values.
  You can set the following values to this property:
  • 11 - unCelcius
  • 12 - unFahrenheit
• UnitWinds As UNIT_WINDS
  Returns or sets the speed unit that MetarWeather uses to display wind speed.
  You can set the following values to this property:
  • 31 - unMeterPerSecond
  • 32 - unKilometerPerHour
  • 33 - unKnot
  • 34 - unMilePerHour
• UnitTime As UNIT_TIME
  Returns or sets the time unit that MetarWeather uses to display the report time.
  You can set the following values to this property:
  • 0 - unGMT
  • 10000 - unLocalTime
• MultiValuesMode As MULTI_VALUES_MODE
  This property determines how to display weather information with multiples values. It only affects the following fields: Sky Condition (wfSkyCondition = 12), Weather (wfWeather = 13), and Remarks (wfRemarks = 14).
  You can set the following values to this property:
  • 1 - mvCommaDelimited: (Default) The values are separated by comma.
  • 2 - mvLineBreakDelimited: The values are separated by HTML line break. (<BR> tag)
    This value is useful for using in ASP script.
  • 3 - mvCRLFDelimited: The values are separated by CR-LF characters.

Weather Fields

Weather Icons Numbers Returned By GetWeatherIcon()