Added rotation and renamed elementRef

Added rotation to DataNode, State, Label, and Shape. Made rotation optional as per issue #81 . Renamed DataNode elementRef to aliasRef as per issue #82.

Author: Finterly

GPML2021/GPML2021.xsd

@@ -437,7 +437,7 @@
 		DataNode properties in the order to be written: 
 		- elementId, textLabel, type, groupRef, elementRef 
 		- Xref, States
-		- Graphics (RectAttributes, FontAttributes, ShapeStyleAttributes)
+		- Graphics (RectAttributes, FontAttributes, ShapeStyleAttributes, rotation)
 		- CommentGroup (Comment, Property, AnnotationRef, CitationRef, EvidenceRef) 
 	-->
 	<xsd:element name="DataNodes">
@@ -465,6 +465,11 @@
 									<xsd:attributeGroup ref="gpml:RectAttributes"/>
 									<xsd:attributeGroup ref="gpml:FontAttributes"/>
 									<xsd:attributeGroup ref="gpml:ShapeStyleAttributes"/>
+									<xsd:attribute name="rotation" type="xsd:float" use="optional">
+										<xsd:annotation>
+											<xsd:documentation>A float value (rotation in radians).</xsd:documentation>
+										</xsd:annotation>
+									</xsd:attribute>
 								</xsd:complexType>
 							</xsd:element>
 							<!-- End Graphics related attributes-->
@@ -513,9 +518,9 @@
 								<xsd:documentation>When a pathway element is part of a gpml:Group, groupRef refers to the elementId of the parent group.</xsd:documentation>
 							</xsd:annotation>
 						</xsd:attribute>
-						<xsd:attribute name="elementRef" type="xsd:IDREF" use="optional">
+						<xsd:attribute name="aliasRef" type="xsd:IDREF" use="optional">
 							<xsd:annotation>
-								<xsd:documentation>An elementRef indicates a child/parent relationship between objects. The elementRef of the child refers to the elementId of the parent. A DataNode can have type "Alias" and refer to a gpml:Group.</xsd:documentation>
+								<xsd:documentation>An aliasRef indicates a child/parent relationship between objects. A DataNode can have type "Alias" and refer to a gpml:Group.</xsd:documentation>
 							</xsd:annotation>
 						</xsd:attribute>
 					</xsd:complexType>
@@ -534,7 +539,7 @@
 		State properties in the order to be written: 
 		- elementId, textLabel, type
 		- Xref
-		- Graphics (relX, relY,  width, height, FontAttributes, ShapeStyleAttributes)
+		- Graphics (relX, relY,  width, height, FontAttributes, ShapeStyleAttributes, rotation)
 		- CommentGroup (Comment, Property, AnnotationRef, CitationRef, EvidenceRef)
 	-->
 	<xsd:element name="States">
@@ -576,6 +581,11 @@
 									</xsd:attribute>
 									<xsd:attributeGroup ref="gpml:FontAttributes"/>
 									<xsd:attributeGroup ref="gpml:ShapeStyleAttributes"/>
+									<xsd:attribute name="rotation" type="xsd:float" use="optional">
+										<xsd:annotation>
+											<xsd:documentation>A float value (rotation in radians).</xsd:documentation>
+										</xsd:annotation>
+									</xsd:attribute>
 								</xsd:complexType>
 							</xsd:element>
 							<!-- End Graphics related attributes-->
@@ -745,7 +755,7 @@
 		
 		Label properties in the order to be written: 
 		- elementId, textLabel, groupRef, href
-		- Graphics (RectAttributes, FontAttributes, ShapeStyleAttributes)
+		- Graphics (RectAttributes, FontAttributes, ShapeStyleAttributes, rotation)
 		- CommentGroup (Comment, Property, AnnotationRef, CitationRef, EvidenceRef)
 	-->
 	<xsd:element name="Labels">
@@ -767,6 +777,11 @@
 									<xsd:attributeGroup ref="gpml:RectAttributes"/>
 									<xsd:attributeGroup ref="gpml:FontAttributes"/>
 									<xsd:attributeGroup ref="gpml:ShapeStyleAttributes"/>
+									<xsd:attribute name="rotation" type="xsd:float" use="optional">
+										<xsd:annotation>
+											<xsd:documentation>A float value (rotation in radians).</xsd:documentation>
+										</xsd:annotation>
+									</xsd:attribute>
 								</xsd:complexType>
 							</xsd:element>
 							<!-- End Graphics related attributes-->
@@ -806,7 +821,7 @@
 		
 		Shape properties in the order to be written: 
 		- elementId, textLabel, groupRef
-		- Graphics (RectAttributes, FontAttributes, ShapeStyleAttributes), rotation
+		- Graphics (RectAttributes, FontAttributes, ShapeStyleAttributes, rotation)
 		- CommentGroup (Comment, Property, AnnotationRef, CitationRef, EvidenceRef)
 	-->
 	<xsd:element name="Shapes">
@@ -828,7 +843,7 @@
 									<xsd:attributeGroup ref="gpml:RectAttributes"/>
 									<xsd:attributeGroup ref="gpml:FontAttributes"/>
 									<xsd:attributeGroup ref="gpml:ShapeStyleAttributes"/>
-									<xsd:attribute name="rotation" type="xsd:float" default="0.0">
+									<xsd:attribute name="rotation" type="xsd:float" use="optional">
 										<xsd:annotation>
 											<xsd:documentation>A float value (rotation in radians).</xsd:documentation>
 										</xsd:annotation>