Changes for page 05 Lua Script

Last modified by Devin Chen on 2025/03/04 14:07

From 36.1 to 37.1 From 39.1 to 40.1

From version 37.1

edited by Hunter
on 2023/07/07 17:30

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To version 39.1

edited by Hunter
on 2023/07/10 14:03

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@@ -290,9 +290,235 @@
  The example shows automatically line break for long string content according to user input length.
++[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/CRLF.zip]]
++
  The following are some demonstrated strings from offline simulator:
  (% style="text-align:center" %)
  [[image:WordWrapDisplayResult.png]]
--[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/CRLF.zip]]
++= 16 Weather forecast HTTP API request =
++
++The example shows how to parse value from HTTP response body, and display into HMI internal address. The test forecast official website is [[https:~~/~~/www.weatherapi.com/>>url:https://www.weatherapi.com/]]
++
++[[Download link>>https://ftp.we-con.com.cn/Download/WIKI/PI%20HMI/Demo/Lua%20Script/luahttp.zip]]
++
++From the API explorer of weatherapi, the one day forecast response would be like the follows(Because the original data of JSON is very long, there we just show the part of it):
++
++{{code language="JSON"}}
++{
++    "location": {
++        "name": "London",
++        "region": "City of London, Greater London",
++        "country": "United Kingdom",
++        "lat": 51.52,
++        "lon": -0.11,
++        "tz_id": "Europe/London",
++        "localtime_epoch": 1688961236,
++        "localtime": "2023-07-10 4:53"
++    },
++    "current": {
++        "last_updated_epoch": 1688960700,
++        "last_updated": "2023-07-10 04:45",
++        "temp_c": 14.0,
++        "temp_f": 57.2,
++        "is_day": 0,
++        "condition": {
++            "text": "Partly cloudy",
++            "icon": "//cdn.weatherapi.com/weather/64x64/night/116.png",
++            "code": 1003
++        },
++        "wind_mph": 4.3,
++        "wind_kph": 6.8,
++        "wind_degree": 220,
++        "wind_dir": "SW",
++        "pressure_mb": 1020.0,
++        "pressure_in": 30.12,
++        "precip_mm": 0.0,
++        "precip_in": 0.0,
++        "humidity": 88,
++        "cloud": 50,
++        "feelslike_c": 13.3,
++        "feelslike_f": 56.0,
++        "vis_km": 10.0,
++        "vis_miles": 6.0,
++        "uv": 1.0,
++        "gust_mph": 10.5,
++        "gust_kph": 16.9
++    },
++    "forecast": {
++        "forecastday": [
++            {
++                "date": "2023-07-10",
++                "date_epoch": 1688947200,
++                "day": {
++                    "maxtemp_c": 24.4,
++                    "maxtemp_f": 75.9,
++                    "mintemp_c": 14.1,
++                    "mintemp_f": 57.4,
++                    "avgtemp_c": 19.6,
++                    "avgtemp_f": 67.2,
++                    "maxwind_mph": 15.4,
++                    "maxwind_kph": 24.8,
++                    "totalprecip_mm": 0.0,
++                    "totalprecip_in": 0.0,
++                    "totalsnow_cm": 0.0,
++                    "avgvis_km": 10.0,
++                    "avgvis_miles": 6.0,
++                    "avghumidity": 60.0,
++                    "daily_will_it_rain": 0,
++                    "daily_chance_of_rain": 0,
++                    "daily_will_it_snow": 0,
++                    "daily_chance_of_snow": 0,
++                    "condition": {
++                        "text": "Partly cloudy",
++                        "icon": "//cdn.weatherapi.com/weather/64x64/day/116.png",
++                        "code": 1003
++                    },
++                    "uv": 5.0
++                },
++                "astro": {
++                    "sunrise": "04:55 AM",
++                    "sunset": "09:16 PM",
++                    "moonrise": "12:26 AM",
++                    "moonset": "02:01 PM",
++                    "moon_phase": "Last Quarter",
++                    "moon_illumination": "51",
++                    "is_moon_up": 1,
++                    "is_sun_up": 0
++                },
++                "hour": [
++                    {
++                        "time_epoch": 1688943600,
++                        "time": "2023-07-10 00:00",
++                        "temp_c": 16.2,
++                        "temp_f": 61.2,
++                        "is_day": 0,
++                        "condition": {
++                            "text": "Clear",
++                            "icon": "//cdn.weatherapi.com/weather/64x64/night/113.png",
++                            "code": 1000
++                        },
++                        "wind_mph": 7.2,
++                        "wind_kph": 11.5,
++                        "wind_degree": 223,
++                        "wind_dir": "SW",
++                        "pressure_mb": 1021.0,
++                        "pressure_in": 30.14,
++                        "precip_mm": 0.0,
++                        "precip_in": 0.0,
++                        "humidity": 74,
++                        "cloud": 6,
++                        "feelslike_c": 16.2,
++                        "feelslike_f": 61.2,
++                        "windchill_c": 16.2,
++                        "windchill_f": 61.2,
++                        "heatindex_c": 16.2,
++                        "heatindex_f": 61.2,
++                        "dewpoint_c": 11.6,
++                        "dewpoint_f": 52.9,
++                        "will_it_rain": 0,
++                        "chance_of_rain": 0,
++                        "will_it_snow": 0,
++                        "chance_of_snow": 0,
++                        "vis_km": 10.0,
++                        "vis_miles": 6.0,
++                        "gust_mph": 10.7,
++                        "gust_kph": 17.3,
++                        "uv": 1.0
++                    },
++                    {
++                        "time_epoch": 1688947200,
++                        "time": "2023-07-10 01:00",
++                        "temp_c": 15.7,
++                        "temp_f": 60.3,
++                        "is_day": 0,
++                        "condition": {
++                            "text": "Overcast",
++                            "icon": "//cdn.weatherapi.com/weather/64x64/night/122.png",
++                            "code": 1009
++                        },
++                        "wind_mph": 7.2,
++                        "wind_kph": 11.5,
++                        "wind_degree": 232,
++                        "wind_dir": "SW",
++                        "pressure_mb": 1021.0,
++                        "pressure_in": 30.14,
++                        "precip_mm": 0.0,
++                        "precip_in": 0.0,
++                        "humidity": 75,
++                        "cloud": 100,
++                        "feelslike_c": 15.7,
++                        "feelslike_f": 60.3,
++                        "windchill_c": 15.7,
++                        "windchill_f": 60.3,
++                        "heatindex_c": 15.7,
++                        "heatindex_f": 60.3,
++                        "dewpoint_c": 11.3,
++                        "dewpoint_f": 52.3,
++                        "will_it_rain": 0,
++                        "chance_of_rain": 0,
++                        "will_it_snow": 0,
++                        "chance_of_snow": 0,
++                        "vis_km": 10.0,
++                        "vis_miles": 6.0,
++                        "gust_mph": 10.5,
++                        "gust_kph": 16.9,
++                        "uv": 1.0
++                    },
++                   ...
++                    {
++                        "time_epoch": 1689026400,
++                        "time": "2023-07-10 23:00",
++                        "temp_c": 19.0,
++                        "temp_f": 66.2,
++                        "is_day": 0,
++                        "condition": {
++                            "text": "Overcast",
++                            "icon": "//cdn.weatherapi.com/weather/64x64/night/122.png",
++                            "code": 1009
++                        },
++                        "wind_mph": 9.4,
++                        "wind_kph": 15.1,
++                        "wind_degree": 192,
++                        "wind_dir": "SSW",
++                        "pressure_mb": 1015.0,
++                        "pressure_in": 29.96,
++                        "precip_mm": 0.0,
++                        "precip_in": 0.0,
++                        "humidity": 66,
++                        "cloud": 100,
++                        "feelslike_c": 19.0,
++                        "feelslike_f": 66.2,
++                        "windchill_c": 19.0,
++                        "windchill_f": 66.2,
++                        "heatindex_c": 19.0,
++                        "heatindex_f": 66.2,
++                        "dewpoint_c": 12.4,
++                        "dewpoint_f": 54.3,
++                        "will_it_rain": 0,
++                        "chance_of_rain": 0,
++                        "will_it_snow": 0,
++                        "chance_of_snow": 0,
++                        "vis_km": 10.0,
++                        "vis_miles": 6.0,
++                        "gust_mph": 13.0,
++                        "gust_kph": 20.9,
++                        "uv": 1.0
++                    }
++                ]
++            }
++        ]
++    }
++}
++{{/code}}
++
++The core code is from file API_WEATHER.lua, and function name is get7DayWeatherapiByCityname.
++
++(% style="text-align:center" %)
++[[image:WeatherHTTPAPI.png]]
++
++The HMI offline simulator result:
++
++(% style="text-align:center" %)
++[[image:WeatherHTTPtestdisplay.png]]

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