如何更改graphviz的默认字体大小？ [英] how to change default font size for graphviz?

问题描述

我使用doxygen + graphviz记录我的代码。 graphviz在生成图像方面做得很好。

I use doxygen + graphviz for documenting my code. graphviz does a nice job of generating images.

是否可以更改graphviz的默认字体大小？默认值为14，但我想改用12。

Is there any way to change the default fontsize for graphviz? The default is 14, but I want to use 12 instead.

更改单个元素（如节点，子图，边等）的字体大小确实很痛苦。

Its a real pain to change the fontsize for individual elements like, nodes, subgraphs, edges ... etc.

更新：

作为参考，这是我在doxygen中使用的代码，（当然，文本字段已重命名）

For reference here is the code I'm using in doxygen, (the text fields have been renamed, of course)

@dot
 strict digraph {
   node [shape = box, fontsize = 12];
     subgraph cluster_main {
       fontsize = 12;
       shape    = box;
       label    = "main";
       subgraph cluster_main_common {
         fontsize = 12;
         shape    = box;
         label    = "common";
         subgraph cluster_main_common_source {
           fontsize = 12;
           shape    = box;
           label    = "source"
           subgraph cluster_file1 {
             fontsize = 12;
             shape    = box;
             label    = "file1.c";
             gSystem [label = "var1" URL = "\ref var1"];
           }
           subgraph cluster_file2 {
             fontsize = 12;
             shape    = box;
             label    = "file2.c";
             gCard [label = "var2" URL = "\ref var2"];
           }
           subgraph cluster_file3 {
             fontsize = 12;
             shape    = box;
             label    = "file3.c";
             gPwrSupply [label = "var3" URL = "\ref var3"];
           }
         }
       }
       subgraph cluster_main_docs {
         fontsize = 12;
         shape    = box;
         label    = "docs";
         subgraph cluster_main_docs_features {
           fontsize = 12;
           shape    = box;
           label    = "features";
           subgraph cluster_main_docs_features_source {
             fontsize = 12;
             shape    = box;
             label    = "source"
             subgraph cluster_file4 {
               fontsize = 12;
               shape    = box;
               label    = "file4.c";
               deviceInfo [label = "var4" URL = "\ref var4"];
             }
           }
         }
       }
     }
   }
   @enddot

推荐答案

Fontsize是一个图形属性（以及边和节点属性）。 Doxygen会生成一个点文件，因此，例如：

Fontsize is a graph attribute (as well as an edge and node attribute). Doxygen generates a dot file, so, e.g.,:

strict digraph {
                 graph [ bgcolor=lightgray, resolution=128, fontname=Arial, fontcolor=blue, 
                         fontsize=12 ];
                 node [ fontname=Arial, fontcolor=blue, fontsize=11];
                 edge [ fontname=Helvetica, fontcolor=red, fontsize=10 ];

                }

特定设置将覆盖通用设置；因此，将fontsize设置为节点属性将覆盖设置为graph属性的fontsize（尽管仅适用于节点），并且将特定节点的fontsize设置将覆盖所有节点的fontsize设置。

Specific settings will override generic ones; hence setting fontsize as a node attribute will override the fontsize set as a graph attribute (just for nodes though), and setting fontsize for specific nodes will override fontsize set for all nodes.

如果尝试上述操作，但似乎不起作用，请更改字体大小，在整个点文件中搜索字体大小设置，将其删除，然后将字体大小重新设置为节点属性。

If you try what i have above and it does not seem to work, change the fontsize, search your entire dot file for 'fontsize' settings, remove them, and re-set fontsize as a node attribute.

以下是完整的graphviz 属性列表。

Here is the complete graphviz attribute list.

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