Variable Substitution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 5.1.6 Usage Patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . allow many flexible formats). 1.2 Technical overview Eeschema is limited only by the available memory. There is thus no real limitation to the number of components, component pins, connections or sheets (which is not always known) to the library in the project specific symbol library table. 5.1.6 Usage Patterns Symbol libraries can be defined either globally or specifically to the currently loaded

vector buses. For example, the bus MEMORY{A[7..0] D[7..0] OE WE} contains both vector buses and plain signals, and will result in nets such as MEMORY.A7 and MEMORY.OE on the PCB. Bus wires can be drawn same filename for each repeated sheet; the circuit drawn in the sheet will be instantiated once per usage, and any edits in once instance will be reflected in the other instances. NOTE Sheet files can Environment variable substitution is supported by using the syntax ${ENV_VAR_NAME} in the library path. Usage Patterns Symbol libraries can be defined either globally or specifically to the currently loaded

allow many flexible formats). 1.2. Technical overview Eeschema is limited only by the available memory. There is thus no real limitation to the number of components, component pins, connections or sheets (which is not always known) to the library in the project specific symbol library table. 5.1.6. Usage Patterns Symbol libraries can be defined either globally or specifically to the currently loaded that you always have to remember to add each symbol library that you need for every project. One usage pattern would be to define commonly used libraries globally and the libraries only required for the

vector buses. For example, the bus MEMORY{A[7..0] D[7..0] OE WE} contains both vector buses and plain signals, and will result in nets such as MEMORY.A7 and MEMORY.OE on the PCB. Bus wires can be drawn same filename for each repeated sheet; the circuit drawn in the sheet will be instantiated once per usage, and any edits in once instance will be reflected in the other instances. NOTE Sheet files can table. This makes it possible to relocate projects without breaking their project library tables. Usage Patterns Symbol libraries can be defined either globally or specifically to the currently loaded

vector buses. For example, the bus MEMORY{A[7..0] D[7..0] OE WE} contains both vector buses and plain signals, and will result in nets such as MEMORY.A7 and MEMORY.OE on the PCB. Bus wires can be drawn same filename for each repeated sheet; the circuit drawn in the sheet will be instantiated once per usage, and any edits in once instance will be reflected in the other instances. NOTE Sheet files can table. This makes it possible to relocate projects without breaking their project library tables. Usage Patterns Symbol libraries can be defined either globally or specifically to the currently loaded

DM”的网络。 对于在几个类似电路上重复使用较大总线的设计，使用这种技术可以节省时 间。 组总线还可以包含矢量总线。 例如，总线‘MEMORY {A [7..0] D [7..0] OE WE}’包含矢量总线和普通信号，并将产生 诸如“MEMORY.A7”和“MEMORY.OE”之类的网络在 PCB 上的 。 22 Bus wires can be drawn and connected in same filename for each repeated sheet; the circuit drawn in the sheet will be instantiated once per usage, and any edits in once instance will be reflected in the other instances. NOTE Sheet files can in Python and XSLT can contain a header comment that describes the generator’s functionality and usage. This header comment is displayed in the BOM dialog as the description for each generator. The header

SGLIB_API S3DMODEL* GetModel( SCENEGRAPH* aNode ); /** * Function Destroy3DModel * frees memory used by an S3DMODEL structure and sets the pointer to * the structure to NULL */ SGLIB_API Free3DModel * frees memory used internally by an S3DMODEL structure */ SGLIB_API void Free3DModel( S3DMODEL& aModel ); /** * Function Free3DMesh * frees memory used internally by initializes an SMESH struct */ SGLIB_API void Init3DMesh( SMESH& aMesh ); }; For actual usage examples of the Scenegraph API see the Advanced 3D Plugin tutorial above and the KiCad VRML1, VRML2

SGLIB_API S3DMODEL* GetModel( SCENEGRAPH* aNode ); /** * Function Destroy3DModel * frees memory used by an S3DMODEL structure and sets the pointer to * the structure to NULL */ SGLIB_API Free3DModel * frees memory used internally by an S3DMODEL structure */ SGLIB_API void Free3DModel( S3DMODEL& aModel ); /** * Function Free3DMesh * frees memory used internally by an SMESH struct */ SGLIB_API void Init3DMesh( SMESH& aMesh ); }; For examples of actual usage of the Scenegraph API see the 3D Plugin DEMO2 tutorial and the kicad VRML1, VRML2, and X3D parsers

frees memory used by an S3DMODEL structure and sets the pointer to * the structure to NULL */ SGLIB_API void Destroy3DModel( S3DMODEL** aModel ); /** * Function Free3DModel * frees memory used internally structure */ SGLIB_API void Free3DModel( S3DMODEL& aModel ); /** * Function Free3DMesh * frees memory used internally by an SMESH structure */ SGLIB_API void Free3DMesh( SMESH& aMesh ); /** * Function initializes an SMESH struct */ SGLIB_API void Init3DMesh( SMESH& aMesh ); }; For examples of actual usage of the Scenegraph API see the 3D Plugin DEMO2 tutorial and the kicad VRML1, VRML2, and X3D parsers

*/ SGLIB_API S3DMODEL* GetModel( SCENEGRAPH* aNode ); /** * Function Destroy3DModel * frees memory used by an S3DMODEL structure and sets the pointer to * the structure to NULL */ SGLIB_API void Function Free3DModel * frees memory used internally by an S3DMODEL structure */ SGLIB_API void Free3DModel( S3DMODEL& aModel ); /** * Function Free3DMesh * frees memory used internally by an SMESH creates and initializes an SMESH struct */ SGLIB_API void Init3DMesh( SMESH& aMesh ); }; For actual usage examples of the Scenegraph API see the Advanced 3D Plugin tutorial above and the KiCad VRML1, VRML2