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--- interactivesvg:subscribe [2022/11/30 23:56] – created optrix
+++ interactivesvg:subscribe [2025/12/18 22:50] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+====Subscribe====
+The **Subscribe** function is part of the [[HMIPanel]] class in the ARDI Javascript API.
+You use the command to subscribe to changes in a single data point.
+===Parameters===
+**Point**: The [[ardi point code|point code]] for the property you want to monitor. Note that if you're creating a dynamic SVG file, you might be able to use an [[Embedding Codes|embedding code]].
+**Callback**: The function to be called when a change happens. The callback function has a single parameter, the new value. Note that this value might be a string - if performing math on it, you should ensure to run //parseFloat// before use.
+**Animated**: An optional parameter, indicating if you would like this data to animate between values. TRUE (the default) will animate, while FALSE will snap to the new value immediately.
+===Usage===
+<code>
+var connection = HMIPanel();
+connection.Subscribe("10:20:measurement",function (val) {
+   console.log("New Value: " + parseFloat(val).toFixed(2));
+});
+connection.ConnectTo("myardiserver");
+</code>
+Normally, your Subscribe calls should be before a call to [[ConnectTo]].

Subscribe