aPluginInfo ); In typical situations, the user would do the following: 1. Create an instance of KICAD_PLUGIN_LDR_3D 2. Invoke Open( ”/path/to/myplugin.so” ) to open a specific plugin; the return value must Invoke any of the 3D Plugin Class calls as exposed by KICAD_PLUGIN_LDR_3D 4. Invoke Close() to close (unlink) the plugin 5. Destroy the KICAD_PLUGIN_LDR_3D instance 3.2 Scenegraph Class APIs The Scenegraph

1. 创建‘KICAD_PLUGIN_LDR_3D’的实例。 2. 调用‘Open(“/path/to/myplugin.so”)’来打开一个特定的插件。必须检查返回值以确保根据需要加载插件。 3. 调用由‘KICAD_PLUGIN_LDR_3D’公开的任何 3D 插件类调用。 4. 调用‘Close()’来关闭（取消链接）插件。 5. 销毁‘KICAD_PLUGIN_LDR_3D’实例。

exposed by KICAD_PLUGIN_LDR_3D. 4. Invoke Close() to close (unlink) the plugin. 5. Destroy the KICAD_PLUGIN_LDR_3D instance. Kicad Plugins 21 / 33 3.2 Scenegraph Class APIs The Scenegraph Class API is defined