nodes_file.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema elementFormDefault="qualified" xmlns:xsd="http://www.w3.org/2001/XMLSchema">

    <xsd:include schemaLocation="types/base.xsd" />

    <xsd:element name="nodes" type="nodesType">
        <xsd:key name="nodeKey">
            <xsd:selector xpath="node"/>
            <xsd:field xpath="@id"/>
        </xsd:key>
    </xsd:element>

    <xsd:complexType name="nodesType">
        <xsd:sequence>
            <xsd:element name="location" type="locationType" minOccurs="0" maxOccurs="1"/>
            <xsd:choice minOccurs="0" maxOccurs="unbounded">
                <xsd:element name="node" type="nodeType"/>
                <xsd:element name="delete" type="deleteType"/>
                <xsd:element name="join" type="joinType"/>
                <xsd:element name="joinExclude" type="joinExcludeType"/>
            </xsd:choice>
        </xsd:sequence>
        <xsd:attribute name="version" use="optional">
            <xsd:simpleType>
                <xsd:restriction base="xsd:string">
                    <xsd:pattern value="\d+.\d+"></xsd:pattern>
                </xsd:restriction>
            </xsd:simpleType>
        </xsd:attribute>
    </xsd:complexType>

    <xsd:complexType name="nodeTypeWithoutID">
        <xsd:sequence>
            <xsd:element name="param" type="paramType" minOccurs="0" maxOccurs="unbounded"/>
        </xsd:sequence>
        <xsd:attribute name="x" type="floatType" use="optional"/>
        <xsd:attribute name="y" type="floatType" use="optional"/>
        <xsd:attribute name="z" type="floatType" use="optional"/>
        <xsd:attribute name="type" type="nodeTypeType" use="optional"/>
        <xsd:attribute name="tl" type="xsd:string" use="optional"/>
        <xsd:attribute name="tlType" type="tlTypeType" use="optional"/>
        <xsd:attribute name="tlLayout" type="tlLayoutType" use="optional"/>
        <xsd:attribute name="controlledInner" type="xsd:string" use="optional"/>
        <xsd:attribute name="shape" type="shapeType" use="optional"/>
        <xsd:attribute name="name" type="xsd:string" use="optional"/>
        <xsd:attribute name="radius" type="nonNegativeFloatTypeWithErrorValue" use="optional"/>
        <xsd:attribute name="keepClear" type="boolType" use="optional"/>
        <xsd:attribute name="rightOfWay" use="optional">
            <xsd:simpleType>
                <xsd:restriction base="xsd:string">
                    <xsd:enumeration value="default"/>
                    <xsd:enumeration value="mixedPriority"/>
                    <xsd:enumeration value="allwayStop"/>
                    <xsd:enumeration value="edgePriority"/>
                </xsd:restriction>
            </xsd:simpleType>
        </xsd:attribute>
        <xsd:attribute name="fringe" use="optional">
            <xsd:simpleType>
                <xsd:restriction base="xsd:string">
                    <xsd:enumeration value="default"/>
                    <xsd:enumeration value="outer"/>
                    <xsd:enumeration value="inner"/>
                </xsd:restriction>
            </xsd:simpleType>
        </xsd:attribute>
        <xsd:attribute name="roundabout" use="optional">
            <xsd:simpleType>
                <xsd:restriction base="xsd:string">
                    <xsd:enumeration value="1"/>
                    <xsd:enumeration value="0"/>
                    <xsd:enumeration value="default"/>
                </xsd:restriction>
            </xsd:simpleType>
        </xsd:attribute>
    </xsd:complexType>

    <xsd:complexType name="nodeType">
        <xsd:complexContent>
            <xsd:extension base="nodeTypeWithoutID">
                <xsd:attribute name="id" type="idType" use="required"/>
            </xsd:extension>
        </xsd:complexContent>
    </xsd:complexType>

    <xsd:complexType name="deleteType">
        <xsd:attribute name="id" type="idType" use="required"/>
    </xsd:complexType>

    <xsd:complexType name="joinType">
        <xsd:complexContent>
            <xsd:extension base="nodeTypeWithoutID">
                <xsd:attribute name="nodes" type="xsd:string" use="required"/>
                <xsd:attribute name="id" type="idType" use="optional"/>
            </xsd:extension>
        </xsd:complexContent>
    </xsd:complexType>

    <xsd:complexType name="joinExcludeType">
        <xsd:attribute name="nodes" type="xsd:string" use="required"/>
    </xsd:complexType>

    <xsd:simpleType name="tlLayoutType">
        <xsd:restriction base="xsd:string">
            <xsd:enumeration value="opposites"/>
            <xsd:enumeration value="incoming"/>
            <xsd:enumeration value="alternateOneWay"/>
        </xsd:restriction>
    </xsd:simpleType>

</xsd:schema>