Merge pull request #30 from pvlib/tracker

Add tracker product data model

Author: cwhanse

Examples/05 - VerySimpleFixedPVC2_with_electrical_layout_v3.pvc

@@ -535,9 +535,11 @@
 				</extra>
 			</instance_geometry>
 			<extra>
+				<!-- data about the table -->
 				<technique profile="PVCollada-2.0">
 					<!-- table tag -->
 					<pv:table>
+					  <pv:type>fixed</pv:type>
 					</pv:table>
 				</technique>
 			</extra>

schema/pvcollada_schema_0.1.xsd

@@ -61,6 +61,31 @@ xmlns:collada="http://www.collada.org/2008/03/COLLADASchema">
       <xs:enumeration value="tracker" />
     </xs:restriction>
   </xs:simpleType>
+  <xs:simpleType name="table_type_enum" final="restriction">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="fixed" />
+      <xs:enumeration value="tracker" />
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="tracker_type_enum" final="restriction">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="single_axis" />
+      <xs:enumeration value="dual_axis" />
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="torque_tube_shape_enum" final="restriction">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="circle" />
+      <xs:enumeration value="rectangle" />
+      <xs:enumeration value="octogon" />
+    </xs:restriction>
+  </xs:simpleType>
+  <xs:simpleType name="drive_type_enum" final="restriction">
+    <xs:restriction base="xs:string">
+      <xs:enumeration value="independent" />
+      <xs:enumeration value="linked" />
+    </xs:restriction>
+  </xs:simpleType>
   <xs:simpleType name="post_type_enum" final="restriction">
     <xs:restriction base="xs:string">
       <xs:enumeration value="rack" />
@@ -897,6 +922,44 @@ xmlns:collada="http://www.collada.org/2008/03/COLLADASchema">
 			The table tag should only appear in the extra/technique section of a Collada node object. The node itself must have one or more instance_geometry
       descendant tags that contain an instance_rack tag.</xs:documentation>
     </xs:annotation>
+		<xs:complexType>
+			<xs:sequence>
+				<xs:element name="type" type="table_type_enum" />
+				<xs:element name="manufacturer" type="xs:string" minOccurs="0" />
+				<xs:element name="tracker_type" type="tracker_type_enum"  minOccurs="0">
+					<xs:annotation>
+						<xs:documentation>Tracker type (single_axis, dual_axis).</xs:documentation>
+					</xs:annotation>
+				</xs:element>
+				<xs:element name="tracker_max_rotation" type="xs:float" minOccurs="0">
+					<xs:annotation>
+						<xs:documentation>Nominal maximum angle of rotation from horizontal for a single-axis tracker. A pair of values must be provided, e.g., (-45, 45) with the first value being negative.
+						The tracker_azimuth of the associated racks defines the sign of the rotation angle. Rotation is a right-hand rotation around the azimuth axis. 
+						For example, a positive rotation for azimuth=180° is to the west.</xs:documentation>
+					</xs:annotation>
+				</xs:element>
+				<xs:element name="tracker_torque_tube_shape" type="torque_tube_shape_enum" minOccurs="0">
+					<xs:annotation>
+						<xs:documentation>Shape of the torque tube's cross-section for a single-axis tracker.</xs:documentation>
+					</xs:annotation>
+				</xs:element>
+				<xs:element name="tracker_torque_tube_diameter" type="xs:float" minOccurs="0">
+					<xs:annotation>
+						<xs:documentation>Nominal diameter of a single-axis tracker torque tube.</xs:documentation>
+					</xs:annotation>
+				</xs:element>
+				<xs:element name="tracker_max_gap_angle" type="xs:float" minOccurs="0">
+					<xs:annotation>
+						<xs:documentation>Maximum angle of a torque axis formed in a gap between racks on a single-axis tracker.</xs:documentation>
+					</xs:annotation>
+				</xs:element>
+				<xs:element name="tracker_drive_type" type="drive_type_enum" minOccurs="0">
+					<xs:annotation>
+						<xs:documentation>Drive type of a single-axis tracker (independent for a single row, linked for multiple rows).</xs:documentation>
+					</xs:annotation>
+				</xs:element>
+			</xs:sequence>
+		</xs:complexType>
   </xs:element>
   <xs:element name="post">
     <xs:annotation>