5 Graph Description Language (GDL) - Absint

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3.3.5 Following Edges Figure 2: Activating the Panner Window When working with very large graphs where the nodes are connected by long edges it is useful to navigate through the graph by taking advantage of the graph structure. This is done by following edges through the graph. The Follow Edge item of the Position menu in the menu line offers this navigation method; alternative: press the e key. The Follow Edge operation works like this: 1. One node has to be selected by the mouse. 2. One edge that starts or ends at this node is highlighted. 3. Left-clicking highlights the next edge. Right-clicking centers the node at the other end of the highlighted edge. 4. From the new node another edge can be selected to be followed by left-clicking. 5. Right-clicking ends the Follow Edge operation. 3.3.6 Follow Edge Dialog Box - History List of Nodes A history is implemented via the Follow Edge operation so that the path through the graph can be traced back. Pressing the h key during the Follow Edge operation causes the history dialog box to appear (see Figure 4) and shows all the nodes encountered during the Follow Edge operation . The list of nodes is shown as a list of the following node attributes: • Title (default) • Label 14
• Information field 1, 2, or 3 The Follow Edge Dialog Box is used as follows: • Selecting a node from the list and then pressing the Select Node button centers the selected node in the main window. • The Next Edge button enables the edges connected to the centered node in the main window to be cycled through. The next edge to be followed is chosen in this manner. • Pressing the Follow Edge button causes the edge selected to be followed. 3.3.7 Entering Coordinates Figure 3: aiSee Follow Edge Navigation The absolute position of the virtual window can be changed by choosing Position in the Position menu of the menu line. This causes a dialog box to pop up prompting the user for the absolute (x,y) coordinates. 15
Page 1: aiSee Graph Visualization User Docu
Page 4 and 5: 3.6 Auxiliaries (User Action) . . .
Page 6 and 7: 6.4.1 Rank Assignment . . . . . . .
Page 9 and 10: 1 Introduction aiSee is a tool that
Page 11 and 12: 3 Usage This chapter describes the
Page 13: 3.3 Navigating Through a Graph Ther
Page 17 and 18: focus. The entire graph is drawn in
Page 19 and 20: • Clicking in an open information
Page 21 and 22: There is no direct interface for pr
Page 23 and 24: • Center width centers horizontal
Page 25 and 26: 4.1.3 Example Figure 7 shows a nest
Page 27 and 28: 4.1.4 Edge Classes - Expose/Hide Ed
Page 29 and 30: Operations: A neighbor region can b
Page 31 and 32: Note: Clustering is an experimental
Page 33 and 34: Figure 9: View Dialog Box • Scrol
Page 35 and 36: Figure 11: Polar Fish-Eye View Self
Page 37 and 38: for a graph and if animation is tur
Page 39 and 40: • Arrow Heads Enables the mode fo
Page 41 and 42: B in the message window (see p. 120
Page 43 and 44: } < list of node attributes > The t
Page 45 and 46: } target: < title of target node >
Page 47 and 48: 5.6 Examples of GDL Specifications
Page 49 and 50: Figure 14: Bent Near, Right-Bent Ne
Page 51 and 52: 06 yspace: 55 07 node: { title:"18"
Page 53 and 54: 22 node: { title:"2" label: "Start"
Page 55 and 56: 11 edge: { source: "0" target: "4"
Page 57 and 58: Figure 21: Example 10, maxdepth; an
Page 59 and 60: • maxoutdegree, finetuning: no Th
Page 61 and 62: Figure 27: Example 11, tree layout,
Page 63 and 64: the style of edges in order to redu
Page 65 and 66:
63 node: { title: "tcsh" level: 6 s
Page 67 and 68:
• bmax Type: integer Default valu
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specifies the color white. For inst
Page 71 and 72:
- energetic gravity, Default value:
Page 73 and 74:
This attribute specifies the consta
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Attribute of: subgraphs Description
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maxdepth and maxdepth do not provid
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• magnetic_field1, magnetic_field
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0 for pmin 100 for pmax Attribute o
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min sets the minimum number of iter
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This parameter only influences the
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• tempscheme Type: integer Defaul
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For details on user actions, see se
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screen, i. e. the x and y coordinat
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5.8 Node Attributes This section de
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AISEEICONS can be set to the direct
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Description: Specifies the horizont
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Description: In a hierarchical layo
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- ”solid” Arrow head is a trian
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- dotted The edge consists of singl
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5.10 Colors aiSee has a color map o
Page 107 and 108:
PostScript, the original PostScript
Page 109 and 110:
5.12 User Action aiSee supports the
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- Selecting special characters Spec
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egion_attribute : “source” “:
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6 Overview of the Layout Phases The
Page 117 and 118:
6.4 Hierarchical Layout 6.4.1 Rank
Page 119 and 120:
The ordering of nodes within one le
Page 121 and 122:
7 Tables 7.1 Node Attributes Table
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Key Menu Item Command Navigation Co
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-notune | -nofinetune See finetunin
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-d minindeg | -d minindegree See la
Page 129 and 130:
-view dcfish See view (p. 90). -vie
Page 131 and 132:
a4 | A4 A4 (21 cm x 30 cm) b5 | B5
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-canim Animates the crossing reduct
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[WiMa92] Wilhelm, Reinhard; Maurer,
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-nomanhattan, 125 -nonearedge, 126
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edge style continuous, 102 dashed,
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near_edges, 80 nearedge, 44, 111 ne
Page 143:
xspace, 92, 119 y, 90 ybase, 91 yma
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5 Graph Description Language (GDL) - Absint

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