yFiles GML Compatibility and Extensions

The following table shows a list of all GML features, sections and attributes, that are handled by the y.io.GMLIOHandler class.

Basic GML contents
GML toplevel
item	type	description	parsed	written
.Creator	attribute [String]	The name of the creator of the file	-	X
.version	attribute [Double]	The version of the creator	-	X
.graph	section (single)	The actual graph data	X	X
.graph level
item	type	description	parsed	written
.graph.label	attribute [String]	The textual name of the graph	-	X
.graph.directed	attribute [Integer / Boolean]	Predicate, whether edges are directed	-	X
.graph.node	section (multiple)	A simple node	X	X
.graph.edge	section (multiple)	A simple edge	X	X
.graph.defaultnodesize	attribute [String]	May be set to 'labelsize', the parser will automatically assign a node size for nodes, whose width or height is not set	X	-
.graph.defaultnodeinsetshorizontal	attribute [Integer]	Used in conjunction with defaultnodesize = 'labelsize'; determines horizontal insets between label and nodeborder	X	-
.graph.defaultnodeinsetsvertical	attribute [Integer]	Used in conjunction with defaultnodesize = 'labelsize'; determines vertical insets between label and nodeborder	X	-
.graph.defaultnodeminwidth	attribute [Integer]	Used in conjunction with defaultnodesize = 'labelsize'; determines minimal width of automatically assigned widths	X	-
.graph.defaultnodeminheight	attribute [Integer]	Used in conjunction with defaultnodesize = 'labelsize'; determines minimal height of automatically assigned heights	X	-
.graph.node level
item	type	description	parsed	written
.graph.node.id	attribute [Integer]	The unique node id	X	X
.graph.node.label	attribute [String]	The textual name of the node (label)	X	X
.graph.node.graphics	section (single)	The graphical representation of the node	X	X
.graph.node.graphics level
item	type	description	parsed	written
.graph.node.graphics.x	attribute [Double]	The x-coordinate of the center of the node	X	X
.graph.node.graphics.y	attribute [Double]	The y-coordinate of the center of the node	X	X
.graph.node.graphics.w	attribute [Double]	The width of the node	X	X
.graph.node.graphics.h	attribute [Double]	The height of the node	X	X
.graph.node.graphics.type	attribute [String]	The name of the shapetype This is one of: Value Description ellipse, oval, circle rectangle triangle parallelogram hexagon diamond octagon roundrectangle rectangle3d trapezoid trapezoid2	X	X
.graph.node.graphics.image	attribute [String]	The URL of the image used for image nodes	X	X
.graph.node.graphics.width	attribute [Double]	The stroke width used for the node	X	X
.graph.node.graphics.fill	attribute [Color]	The fill color of the node	X	X
.graph.node.graphics.outline	attribute [Color]	The stroke color used for the node	X	X
.graph.node.graphics.hasFill	attribute [Integer / Boolean]	Whether or not the node has a fill color	X	X
.graph.node.graphics.hasOutline	attribute [Integer / Boolean]	Whether of not the node has an outline	X	X
.graph.node.LabelGraphics level
item	type	description	parsed	written
.graph.node.LabelGraphics.type	attribute [String]	The content type of the label, either "text" for textual labels or "index_label" for automatic numeric labels	X	X
.graph.node.LabelGraphics.color	attribute [Color]	The text color of the label	X	X
.graph.node.LabelGraphics.fill	attribute [Color]	The background color of the label	X	X
.graph.node.LabelGraphics.color	attribute [Color]	The text color of the label	X	X
.graph.node.LabelGraphics.alignment	attribute [String]	The alignment of multi-line label, either "center", "left" or "right".	X	X
.graph.node.LabelGraphics.anchor	attribute [String]	The anchor type of the label, that determines the postition of the label relative to its node. Positions within the node are "c", "t", "tl", "tr", "l", "r", "bl", "b", br". Positions around the node are "n", "ne", "e", "se", "s", "sw", "w", "nw".	X	X
.graph.node.LabelGraphics.x	attribute [Double]	The absolute x-coordinate of the label. This value will only be written if the label position does not correspond to a predefined label anchor. Also, this value will only be read if no label anchor is specified.	X	X
.graph.node.LabelGraphics.y	attribute [Double]	The absolute y-coordinate of the label. This value will only be written if the label position does not correspond to a predefined label anchor. Also, this value will only be read if no label anchor is specified.	X	X
.graph.node.LabelGraphics.fontSize	attribute [Integer]	The size of the label font	X	X
.graph.node.LabelGraphics.fontStyle	attribute [String]	The style of the label font, either "plain", "italic" or "bold".	X	X
.graph.node.LabelGraphics.fontName	attribute [String]	The logical name of the label font, either "Dialog", "DialogInput", "Monospaced", "Serif", "SansSerif", or "Symbol".	X	X
.graph.edge level
item	type	description	parsed	written
.graph.edge.source	attribute [Integer]	The id of the source node (.graph.node.id)	X	X
.graph.edge.target	attribute [Integer]	The id of the target node (.graph.node.id)	X	X
.graph.edge.label	attribute [String]	The textual name of the edge (label)	X	X
.graph.edge.graphics	section (single)	The graphical representation of the edge	X	X
.graph.edge.edgeAnchor	section (single)	The port definitions	X	X
.graph.edge.graphics level
item	type	description	parsed	written
.graph.edge.graphics.type	attribute [String]	The name of the linetype	-	X
.graph.edge.graphics.width	attribute [Double]	The stroke width used for the line	X	X
.graph.edge.graphics.fill	attribute [String]	The color of the line	X	X
.graph.edge.graphics.arrow	attribute [String]	"last" or "first" depending on whether there are arrows at the sourceport and the targetport	X	X
.graph.edge.graphics.line	section (single)	The positions of the ports and bends of the edge	X	X
.graph.edge.graphics.line level
item	type	description	parsed	written
.graph.edge.graphics.line.point	section (multiple)	A single bend or port	X	X
.graph.edge.graphics.line.point level
item	type	description	parsed	written
.graph.edge.graphics.line.point.x	attribute [Double]	The x-coordinate of the point	X	X
.graph.edge.graphics.line.point.y	attribute [Double]	The y-coordinate of the point	X	X
.graph.edge.edgeAnchor level
item	type	description	parsed	written
.graph.edge.LabelGraphics.type	attribute [String]	The content type of the label, either "text" for textual labels or "index_label" for automatic numeric labels	X	X
.graph.edge.LabelGraphics.color	attribute [Color]	The text color of the label	X	X
.graph.edge.LabelGraphics.fill	attribute [Color]	The background color of the label	X	X
.graph.edge.LabelGraphics.outline	attribute [Color]	The border color of the label	X	X
.graph.edge.LabelGraphics.alignment	attribute [String]	The alignment of multi-line label, either "center", "left" or "right".	X	X
.graph.edge.LabelGraphics.model	attribute [String]	The model of the label, that determines how to interpret the position of a label. Known models are "center_slider", "side_slider", "six_pos", "three_pos", "two_pos", "free" and "centered". For each model certain label positions can be assigned (see below)	X	X
.graph.edge.LabelGraphics.position	attribute [String]	The symbolic position of the label, that determines the actual position of the label. Known positions are "center" "tcentr", "scentr", "shead", "head" "thead", "stail", "tail" and "ttail". Depicted below is a list of the available edge label models together with their Model CENTERED Model TWO_POS Model THREE_CENTER Model SIX_POS
.graph.edge.LabelGraphics.x	attribute [Double]	The absolute x-coordinate of the label. This value must be used to specify the position of the label for the label model types "center_slider", "side_slider" and "free".
.graph.edge.LabelGraphics.y	attribute [Double]	The absolute y-coordinate of the label. This value must be used to specify the position of the label for the label model types "center_slider", "side_slider" and "free". Model CENTER_SLIDER Model SIDE_SLIDER Model FREE
.graph.edge.LabelGraphics.fontSize	attribute [Integer]	The size of the label font	X	X
.graph.edge.LabelGraphics.fontStyle	attribute [String]	The style of the label font, either "plain", "italic" or "bold".	X	X
.graph.edge.LabelGraphics.fontName	attribute [String]	The logical name of the label font, either "Dialog", "DialogInput", "Monospaced", "Serif", "SansSerif", or "Symbol".	X	X
.graph.edge.edgeAnchor.xSource	attribute [Double]	the position of the source port x coordinate relative to half its width measured from the center of the node	X	X
.graph.edge.edgeAnchor.ySource	attribute [Double]	the position of the source port y coordinate relative to half its height measured from the center of the node	X	X
.graph.edge.edgeAnchor.xTarget	attribute [Double]	the position of the target port x coordinate relative to half its width measured from the center of the node	X	X
.graph.edge.edgeAnchor.yTarget	attribute [Double]	the position of the target port x coordinate relative to half its height measured from the center of the node	X	X
Hierarchy Extension
.graph level
item	type	description	parsed	written
.graph.hierarchic	attribute [Integer / Boolean]	Predicate, whether the graph may contain subfolders and/or group nodes	-	X
.graph.interedge	section (multiple)	An interedge definition	X	X
.graph.node level
item	type	description	parsed	written
.graph.node.graphUrl	attribute [String]	Definition of an inner graph, referenced by an URL	X	-
.graph.node.graph	section (single)	Inline definition of an inner graph	X	X
.graph.node.isGroup	attribute [Integer / Boolean]	Whether or not the node is a group node that can be referenced by other node using the gid attribute	X	X
.graph.node.gid	attribute [Integer]	The id of the group node this node belongs to	X	X
.graph.node.graph	section (single)	Inline definition of an inner graph	X	X
.graph.edge level
item	type	description	parsed	written
.graph.edge.id	attribute [Integer]	A (scope) unique edge id	X	X
.graph.interedge level
item	type	description	parsed	written
.graph.interedge.sourcePath	attribute [String]	The relative path of node ids (.graph.node.id), separated by ':' to the real source node	X	X
.graph.interedge.targetPath	attribute [String]	The relative path of node ids (.graph.node.id), separated by ':' to the real target node	X	X
.graph.interedge.representative	attribute [Integer]	The id of the representing edge in this graph (.graph.edge.id)	X	X

attribute [String]

This is a key value pair, where the value is a quoted String

attribute [Integer]

This is a key value pair, where the value is an unquoted signed Integer

attribute [Double]

This is a key value pair, where the value is an unquoted signed real number in double precision

attribute [Integer / Boolean]

This is a key value pair, where the value is an unquoted signed Integer, the parser treats only nonnegative values as true

attribute [String / Color]

This is a key value pair, where the value is an a quoted String, in the form #RRGGBB, where each of the pairs is a hexadecimal value in the range of 00 to FF