This tag describes in what part of the tunnel the laser is valid.

<?xml version="1.0" encoding="utf-16"?>
<xsd:element name="PointDepthRange">
    <xsd:annotation>
        <xsd:documentation>This tag describes in what part of the tunnel the laser is valid.</xsd:documentation>
    </xsd:annotation>
    <xsd:complexType>
        <xsd:sequence>
            <xsd:element name="From" type="xsd:double">
                <xsd:annotation>
                    <xsd:documentation>Starting depth corresponding to the PointDepth tag in curve table in the tunnel line UNIT: m</xsd:documentation>
                </xsd:annotation>
            </xsd:element>
            <xsd:element name="To" type="xsd:double">
                <xsd:annotation>
                    <xsd:documentation>End depth corresponding to the PointDepth tag in curve table in the tunnel line UNIT: m</xsd:documentation>
                </xsd:annotation>
            </xsd:element>
        </xsd:sequence>
    </xsd:complexType>
</xsd:element>