GML Tags

Globally defined Tags

id integer
id defines an identifier for an object. The values of id tags must be unique under certain constraints. For example, there may not be two nodes with the same id.
I an array, id can be used for indexing.
name string
name is similar to id but uses a string instead of an integer. Again, the level of uniqueness is defined by the application.
label string
label defines a textual label attached to an object. Typically, labels are attached to node or an edge.
comment string
Defines a comment embedded in a GML file. Comments are ignored by the application.
Creator string
The name of the application created this file.

Graph Tags

graph list
The tag graph starts a new graph. Common tags within graph are node and edge.
node list
The tag node starts a new node. Common tags within node are id, label , graphics and LabelGraphics.
edge list
The tag edge starts a new edge. Required tags within edge are source and target. Common tags are label, graphics and LabelGraphics.

Graphics

graphics list
graphics defines the graphical representation of a graph, a node or an edge. Graphlet defines a separate tag LabelGraphics which optionally defines the graphical representation of the label.
x double
In context of center, x defines an x coordinate.
y double
In context of center, y defines an y coordinate.
z double
In context of center, z defines an x coordinate.
w double
In context of graphics, w defines the width of an object.
h double
In context of graphics, h defines the height of an object.
d double
In context of graphics, d defines the depth of an object.
Line list
Line defines a polyline, typically to describe an edge. Line contains at least two point objects.
point list
point defines a point, for example a point of a Line. point contains x, y and optionally z.
type string (Graphlet Extension, derived from Tk)
type defines the type of a graphic object. Graphlet recognizes the following values: Default value is rectangle
visible bool (Graphlet Extension)
Determines wether the object is visible or not.
fill string (Graphlet Extension, derived from Tk)
Defines a color to fill the interior of an object with.
outline string (Graphlet Extension, derived from Tk)
The color of the outline of the object.
stipple string (Graphlet Extension, derived from Tk)
The color of the outline of the object.
anchor string (Graphlet Extension, derived from Tk)
Defines the anchor position (that is, the relative location of (x,y,z) of a bitmap, image or text object. Graphlet recognizes the following values:
width double (Graphlet Extension, derived from Tk)
The width is the width of a line or an outline.
extent double (Graphlet Extension, derived from Tk)
(arc only) The length of the arc in counter-clockwise direction, in degrees.
start double (Graphlet Extension, derived from Tk)
(arc only) The starting angle of the arc, in degrees.
style string (Graphlet Extension, derived from Tk)
(arc only) The style of an arc. Graphlet recognizes the following values:
background string (Graphlet Extension, derived from Tk)
(bitmap only) The background color of a bitmap.
foreground string (Graphlet Extension, derived from Tk)
(bitmap only) The foreground color of a bitmap.
bitmap bitmap (Graphlet Extension, derived from Tk)
(bitmap only) The file name of the bitmap. Graphlet recognizes X Bitmap files through Tk.
image string (Graphlet Extension, derived from Tk)
(image only) The file name of the image. Graplet recognizes GIF and JPEG images through Tk.
arrow string (Graphlet Extension, derived from Tk)
(line only) The position of the arrow. Graphlet recognizes the following values: Undirected graphs should use none, directed graphs should use first.
capstyle string (Graphlet Extension, derived from Tk)
(line only) Line ends. Graphlet recognizes the following values:
joinstyle string (Graphlet Extension, derived from Tk)
(line only) Line joints. Graphlet recognizes the following values:
smooth boolean (Graphlet Extension, derived from Tk)
(line, polygon only) Determines wether the line should be drawn as a straight lines or splines.
splinesteps integer (Graphlet Extension, derived from Tk)
(line, polygon only) Number of line segments that approximate the spline. Only active if smooth is set to 1.
justify string (Graphlet Extension, derived from Tk)
(text only) text justification. Graphlet recognizes the following values:
font string (Graphlet Extension, derived from Tk)
(text only) Name of the X11 font to draw the text with. Device independend form not determined yet.
M. Himsolt
Graphlet Documentation 1.17      Graphlet 1.5.2      Date: 10/25/96