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first hg version after svn
| author | wolffd |
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| date | Tue, 10 Feb 2015 15:05:51 +0000 |
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| 1 <html> | |
| 2 <head> | |
| 3 <title>Graphviz todo list 30-January-2009</title> | |
| 4 </head> | |
| 5 <body bgcolor=#ffffff> | |
| 6 | |
| 7 <h1>Graphviz todo list 30-January-2009</h1> | |
| 8 <P> | |
| 9 The 4 categories give a rough time as to when a task should be done, | |
| 10 and reflect an assessment of the task's ease multiplied by its importance. | |
| 11 Thus, orthogonal layouts are extremely important but not easy, | |
| 12 so they fall into category 2. The following denote owners:<br> | |
| 13 AB=<A HREF=mailto:arif@research.att.com>Arif Bilgin</A><br> | |
| 14 ERG=<A HREF=mailto:erg@graphviz.org>Emden Gansner</A><br> | |
| 15 JCE=<A HREF=mailto:ellson@graphviz.org>John Ellson</A><br> | |
| 16 SCN=<A HREF=mailto:north@graphviz.org>Stephen North</A><br> | |
| 17 YH=<A HREF=mailto:yifanhu@graphviz.org>Yifan Hu</A><br> | |
| 18 | |
| 19 <hr align=left width=66> | |
| 20 <H2>Category 0</H2> | |
| 21 <pre> | |
| 22 ALL - Revise the buglist | |
| 23 SCN - Update dot/neatoguide | |
| 24 </pre> | |
| 25 <hr align=left width=66> | |
| 26 <H2>Category 1</H2> | |
| 27 <pre> | |
| 28 SCN - Lightweight edge labels in dot | |
| 29 ? - Lightweight node labels in dot, just placed outside nodes. | |
| 30 SCN - Treemaps | |
| 31 JCE - Extend attribute set for line styles | |
| 32 JCE - Allow arrowheads in the middle of edges | |
| 33 JCE - Support single, uniform font descriptors à la pango | |
| 34 ? - Move generic node adjustment and spline routing out of neato | |
| 35 ERG - New text labels with font elements <B>, <I>, <TT>, etc. (support via fontconfig or egregious hacks) | |
| 36 AB - Create Graph editor for Topview/Graphviz with OpenGL and GTK. (smyrna - in process) (Deprecate use of lefty) | |
| 37 YH/ERG - Clusters in sfdp | |
| 38 YH/ERG - Fixed nodes in sfdp | |
| 39 </pre> | |
| 40 <hr align=left width=66> | |
| 41 <H2>Category 2</H2> | |
| 42 <pre> | |
| 43 SCN/AB - New dot core: | |
| 44 - cgraph | |
| 45 - new rank assignment (have prototype) | |
| 46 - new mincross + clusters (partial prototype) | |
| 47 - symmetrize layouts | |
| 48 - Ulrik's improvements with network simplex | |
| 49 JCE - Shapes | |
| 50 - SVG grammar or other grammar to specify node and arrow shapes | |
| 51 - user-defined nodes in all code generators | |
| 52 YH/ERG - additional graph packing strategies | |
| 53 ? - Filters for GraphML and Chaco formats. | |
| 54 ? - Library for bundled edges (Given two sets of nodes, with positions, | |
| 55 forming a bipartite graph, return splines to bundle the edges together) | |
| 56 ? - better spacing of edges along the side of a node, especially | |
| 57 exposed port sides. Perhaps extend compass points to S, N, E, W to | |
| 58 mean anywhere along that side. | |
| 59 ? - Tabular layout in rows and columns in dot (swim lanes) | |
| 60 ? - Enable arbitrary depth clusters in neato using IPSEP | |
| 61 ? - Allow mixed edge types within the same graph | |
| 62 | |
| 63 </pre> | |
| 64 <hr align=left width=66> | |
| 65 <H2>Category 3</H2> | |
| 66 <pre> | |
| 67 Generic label placement, with and without modifying graph layout. | |
| 68 Support for compound graphs. | |
| 69 Spline router improvement (Gordon's improvements, alpha adjustments, fewer | |
| 70 inflection points) | |
| 71 Fast incremental hierarchical layout | |
| 72 Edge routing with just two vnodes per edge (after Kaufmann) | |
| 73 Graph language improvements | |
| 74 local name spaces | |
| 75 subclassing | |
| 76 Shapes - new parallelogram shape where angle is fixed for varying text | |
| 77 Orthogonal layouts. | |
| 78 Support rank=min/max within the context of a cluster | |
| 79 </pre> | |
| 80 <H2>General R&D directions</H2> | |
| 81 <pre> | |
| 82 Incremental layouts | |
| 83 Dot with orthogonal, coalesced edges (e.g., <A HREF=http://upload.wikimedia.org/wikipedia/en/thumb/7/74/Uml_diagram.svg/700px-Uml_diagram.svg.png>this</A>) | |
| 84 Constraint-based layouts | |
| 85 Display of large-graphs (hair ball problem) | |
| 86 - relaxing constraining edges | |
| 87 - edge bundles | |
| 88 Venn diagrams | |
| 89 Integration of geographic info - maps | |
| 90 </pre> | |
| 91 <H2>Done</H2> | |
| 92 <pre> | |
| 93 JCE - Extend attribute set for line thickness | |
| 94 ERG - New text labels with font elements <FONT> | |
| 95 ERG - Allow edges as line segments and polylines | |
| 96 ERG - New multiedge code | |
| 97 YH/ERG - New overlap adjustment strategies | |
| 98 YH - Faster fdp (sfdp) | |
| 99 ERG - Variable port depending on layout | |
| 100 ERG - Better aspect ratio in dot | |
| 101 ERG - New orthogonal routing code | |
| 102 JCE - use floats not ints where appropriate | |
| 103 YH - Filters for Matrix Market | |
| 104 </pre> | |
| 105 <H2>Retired</H2> | |
| 106 <pre> | |
| 107 JCE - Revise GV_FILE_PATH to work as directory list; remove loose ends | |
| 108 ERG - eliminate the nonlinear adjustment | |
| 109 - use convex hull or alpha shapes | |
| 110 </pre> | |
| 111 </body> | |
| 112 </html> |