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node-red-nodes/function/smooth/17-smooth.html
2017-02-07 21:41:18 +00:00

85 lines
3.7 KiB
HTML

<script type="text/x-red" data-template-name="smooth">
<div class="form-row">
<label for="node-input-action"><i class="fa fa-bolt"></i> Action</label>
<select id="node-input-action" style="width:60%; margin-right:5px;">
<option value="max">Return the maximum value seen</option>
<option value="min">Return the minimum value seen</option>
<option value="mean">Return the mean value</option>
<option value="sd">Return the standard deviation</option>
<option value="low">Perform low pass filter</option>
<option value="high">Perform high pass filter</option>
</select>
</div>
<div class="form-row">
<label for="node-input-count">&nbsp;</label>
<span id="node-over">over the most recent </span>
<input type="text" id="node-input-count" placeholder="10" style="width:50px;"/>
<span id="node-over2"> values</span>
</div>
<div class="form-row">
<label for="node-input-round">(optionally)</label>
round to <input type="text" id="node-input-round" placeholder="ignore" style="width:50px;"/> decimal places
</div>
<br/>
<div class="form-row">
<label for="node-input-name"><i class="fa fa-tag"></i> Name</label>
<input type="text" id="node-input-name" placeholder="Name">
</div>
<div class="form-tips" id="node-tip">Tip: This node ONLY works with numbers.</div>
</script>
<script type="text/x-red" data-help-name="smooth">
<p>A simple node to provide various functions across several previous values, including max, min, mean, high and low pass filters.</p>
<p>Max, Min and Mean work over a specified number of previous values.</p>
<p>The High and Low pass filters use a smoothing factor. The higher the number the more the smoothing. E.g. a value of 10 is
similar to an &alpha; of 0.1. It is analagous to an RC time constant - but there is no time component to this as the
time is based on events arriving.</p>
<p>If <code>msg.reset</code> is received (with any value), all the counters and intermediate values are reset to an initial state.</p>
<p><b>Note:</b> This only operates on <b>numbers</b>. Anything else will try to be made into a number and rejected if that fails.</p>
</script>
<script type="text/javascript">
RED.nodes.registerType('smooth', {
color: "#E2D96E",
category: 'function',
defaults: {
name: {value:""},
action: {value:"mean"},
count: {value:"10",required:true,validate:RED.validators.number()},
round: {value:""}
},
inputs: 1,
outputs: 1,
icon: "smooth.png",
label: function() {
return this.name || "smooth";
},
labelStyle: function() {
return this.name ? "node_label_italic" : "";
},
oneditprepare: function() {
$("#node-input-count").spinner({
min:1
});
$("#node-input-round").spinner({
});
$("#node-input-action").change( function() {
var a = $("#node-input-action").val();
if ((a === "high") || ( a === "low" )) {
$("#node-over").html("with a smoothing factor of ");
$("#node-over2").html("");
}
else {
$("#node-over").html("over the most recent ");
$("#node-over2").html(" values");
}
});
$("#node-input-action").change();
if ($("#node-input-round").val() === "true") {
$("#node-input-round").val(0);
}
}
});
</script>