5 Graph Description Language (GDL) - Absint

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Name Attribute of Default value color Nodes, top-level graph background, subgraph background, summary nodes white color Edges, summary edges black textcolor Nodes, subgraphs, summary nodes black bordercolor Nodes, subgraphs, summary nodes The value of textcolor arrowcolor Edges, summary edges The same color as the edge itself backarrowcolor Edges, summary edges The same color as the edge itself Table 2: <strong>GDL</strong> Color Attributes Though there is no attribute for specifying the background color of additional node information windows, it should be noted that this color is not bound to the RGB constant 255 255 255, but rather to the value of the first entry of the color map (which happens to be 255 255 255 by default). Thus, for example, specifying colorentry 0: 210 218 255 sets the background color for all additional node information windows to alice blue. However, this color then also appears everywhere else where the color white is used, so you might have to also specify colorentry 32: 255 255 255 and use the color number 32 instead of white. The ASCII formfeed character \f (see p. 109) followed by two digits signifying a color changes the color for the characters following in a string, thus enabling the first 100 colors of the color map to be accessed. 5.11 Icons and Additional Fonts 5.11.1 Icons Instead of text labels, aiSee also offers the option of displaying icon files in nodes. The icon files have to be in PNG, PBM, PGM, or PPM format (raw). They can be attached to summary nodes or ordinary nodes by using the iconfile attribute in subgraph (p. 74) or node (p. 94) specifications. Note: In order to prevent the title text from being drawn over the icon displayed, the label attribute of the node or summary node has to be set to the empty string, i. e. label: "". The search path for the icon files can be specified by the environment variable AISEEICONS. Some additional graph attributes influence the drawing of icons, see icons (p. 74), fast_icons (p. 71) and iconcolors (p. 74). 5.11.2 Fonts Apart from the default font, aiSee offers the fonts described in Table 3. These pixel fonts are compatible with Adobe PostScript fonts. When exporting aiSee files to 106
PostScript, the original PostScript fonts can be used (providing your PostScript printer is equipped with these fonts available). They can be specified by the fontname attribute for summary nodes (p. 72), ordinary nodes (p. 94), and edge labels (p. 102). The string value of this attribute is the font file name of the font to be used. The font file name is composed of the file name base and size: fontname: The available font sizes are: 8, 10, 12, 14, 18 and 24 points. For example, a size 12 Times Roman font is specified via fontname: "timR12". Filename base Corresponding PostScript font courB Courier Bold courBO Courier Bold Oblique courO Courier Oblique courR Courier helvB Helvetica Bold helvBO Helvetica Bold Oblique helvO Helvetica Oblique helvR Helvetica timB Times Bold timBI Times Bold Italic timI Times Italic timR Times Roman symb Symbol ncenB New Century Schoolbook Bold ncenBI New Century Schoolbook Bold Italic ncenI New Century Schoolbook Italic ncenR New Century Schoolbook Table 3: Available aiSee Pixel Fonts The search path for the aiSee font files can be specified by the environment variable AISEEFONTS. 5.11.3 Compatibility with SVG We highly recommend using the bitmap fonts when exporting graphs to SVG format. The standard vector font is translated into elements, whereas the bitmap fonts are translated into . SVG treats as text rather than outlines, enabling the user to search SVG images for node labels by using the Find dialog in the SVG viewer. Also, when bitmap fonts are used, the output SVG file is much smaller and loads much faster. An iconfile specification is translated into an element. The element indicates to the SVG viewer used that the contents of the icon file specified are to be rendered into a given 107
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aiSee Graph Visualization User Docu
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3.6 Auxiliaries (User Action) . . .
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6.4.1 Rank Assignment . . . . . . .
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1 Introduction aiSee is a tool that
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3 Usage This chapter describes the
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3.3 Navigating Through a Graph Ther
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• Information field 1, 2, or 3 Th
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focus. The entire graph is drawn in
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• Clicking in an open information
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There is no direct interface for pr
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• Center width centers horizontal
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4.1.3 Example Figure 7 shows a nest
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4.1.4 Edge Classes - Expose/Hide Ed
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Operations: A neighbor region can b
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Note: Clustering is an experimental
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Figure 9: View Dialog Box • Scrol
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Figure 11: Polar Fish-Eye View Self
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for a graph and if animation is tur
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• Arrow Heads Enables the mode fo
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B in the message window (see p. 120
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} < list of node attributes > The t
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} target: < title of target node >
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5.6 Examples of GDL Specifications
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Figure 14: Bent Near, Right-Bent Ne
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06 yspace: 55 07 node: { title:"18"
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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
Page 69 and 70: specifies the color white. For inst
Page 71 and 72: - energetic gravity, Default value:
Page 73 and 74: This attribute specifies the consta
Page 75 and 76: Attribute of: subgraphs Description
Page 77 and 78: maxdepth and maxdepth do not provid
Page 79 and 80: • magnetic_field1, magnetic_field
Page 81 and 82: 0 for pmin 100 for pmax Attribute o
Page 83 and 84: min sets the minimum number of iter
Page 85 and 86: This parameter only influences the
Page 87 and 88: • tempscheme Type: integer Defaul
Page 89 and 90: For details on user actions, see se
Page 91 and 92: screen, i. e. the x and y coordinat
Page 93 and 94: 5.8 Node Attributes This section de
Page 95 and 96: AISEEICONS can be set to the direct
Page 97 and 98: Description: Specifies the horizont
Page 99 and 100: Description: In a hierarchical layo
Page 101 and 102: - ”solid” Arrow head is a trian
Page 103 and 104: - dotted The edge consists of singl
Page 105: 5.10 Colors aiSee has a color map o
Page 109 and 110: 5.12 User Action aiSee supports the
Page 111 and 112: - Selecting special characters Spec
Page 113 and 114: egion_attribute : “source” “:
Page 115 and 116: 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
Page 123 and 124: Key Menu Item Command Navigation Co
Page 125 and 126: -notune | -nofinetune See finetunin
Page 127 and 128: -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
Page 133 and 134: -canim Animates the crossing reduct
Page 135 and 136: [WiMa92] Wilhelm, Reinhard; Maurer,
Page 137 and 138: -nomanhattan, 125 -nonearedge, 126
Page 139 and 140: edge style continuous, 102 dashed,
Page 141 and 142: 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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