Module libreda_db::layout

Geometrical layout data structures.

A layout is a hierarchical structure. Its purpose is to efficiently represent the geometrical properties of a silicon chip. Hence a layout consists of 'cells' which hold geometrical shapes such as polygons on multiple layers. Cells also hold instances of other cells (recursion is not allowed though). Typically a cells correspond to standard-cells or macros and will be instantiated possibly many times. Each cell instance also holds the placement information, i.e. the location, rotation, mirroring and possibly magnification.

Modules

cell	A cell is a container for geometric shapes and cell instances.
cell_instance	A cell instance is the effective usage of a cell.
errors	Data base error types.
hashmap_layout	A layout data structure represents chip geometries. It consists of a hierarchical arrangement of Cells. Each cell contains geometric primitives that are grouped on Layers.
io	Input and output interface definitions for layouts.
layout	A layout data structure represents chip geometries. It consists of a hierarchical arrangement of Cells. Each cell contains geometric primitives that are grouped on Layers.
prelude	The prelude helps to import most commonly used modules.
repetition	Representation of geometrical arrays.
shape_collection	A shape collection represents a geometrical plane which contains geometrical shapes.
traits	Traits for layout data types.
types	Data types used in the data base.