node-red-contrib-snap4city-user/distance-from-coordinates.html

Nodes for Snap4city project, targeted to standard user (no developer)

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<script type="text/javascript">
    RED.nodes.registerType('distance-from-coordinates', {
        category: 'S4CUtility',
        color: '#E9967A',
        defaults: {
            name: {
                value: ""
            },
            sourcelatitude: {
                required: false
            },
            sourcelongitude: {
                required: false
            },
            destinationlatitude: {
                required: false
            },
            destinationlongitude: {
                required: false
            }
        },
        outputs: 1,
        inputs: 1,
        outputLabels: ["distance (meters)"],
        icon: "marker.png",
        label: function () {
            return this.name || "distance-from-coordinates";
        }
    });
</script>

<script type="text/x-red" data-template-name="distance-from-coordinates">
    <div class="form-row">
        <label for="node-input-name">Name</label>
        <input type="text" autocomplete="off" id="node-input-name" placeholder="Name">
    </div>
    <div class="form-row">
        <label for="node-input-sourcelatitude">Source Latitude</label>
        <input type="text" autocomplete="off" id="node-input-sourcelatitude" placeholder="Source Latitude">
    </div>
    <div class="form-row">
        <label for="node-input-sourcelongitude">Source Longitude</label>
        <input type="text" autocomplete="off" id="node-input-sourcelongitude" placeholder="Source Longitude">
    </div>
    <div class="form-row">
        <label for="node-input-destinationlatitude">Destination Latitude</label>
        <input type="text" autocomplete="off" id="node-input-destinationlatitude" placeholder="Destination Latitude">
    </div>
    <div class="form-row">
        <label for="node-input-destinationlongitude">Destination Longitude</label>
        <input type="text" autocomplete="off" id="node-input-destinationlongitude" placeholder="Destination Longitude">
    </div>
</script>

<script type="text/x-red" data-help-name="distance-from-coordinates">
    <p>It allows to calculate the distance in meter from two GPS Coordinates</p>

    <h3>Inputs</h3>
    A JSON with these parameters:

    <dl class="message-properties">
        <dt>sourcelatitude
            <span class="property-type">number</span>
        </dt>
        <dd> latitude of a GPS position</dd>
        <dt>sourcelongitude
            <span class="property-type">number</span>
        </dt>
        <dd> longitude of a GPS position</dd>
        <dt>destinationlatitude
            <span class="property-type">number</span>
        </dt>
        <dd> latitude of a GPS position</dd>
        <dt>destinationlongitude
            <span class="property-type">number</span>
        </dt>
        <dd> longitude of a GPS position</dd>
    </dl>

    <h3>Outputs</h3>
        Distance
            <dl class="message-properties">
                <dd> Returns the value (in meters) of the distance calculated between the two point inserted</dd>
            </dl>


    <h3>Details</h3>
    <p>The node can receive a JSON with the parameters described in the Inputs section and with them generate the output JSON.
        If the values are not present in the input JSON, these are read by those in the configuration. If they are not present
        in either part, an error is generated for the necessary parameters.</p>

</script>