Module libreda_db::prelude

The prelude helps to import most commonly used modules.

Re-exports

pub use crate::layout::prelude::*;

pub use crate::netlist::prelude::*;

pub use crate::rc_string::RcString;

pub use crate::property_storage::WithProperties;

pub use crate::property_storage::PropertyValue;

Modules

traits

Common traits for geometrical objects.

Structs

ComplexTransform	Transformation described by a mirroring at the x axis, then a rotation around the origin, then a scaling, then a translation. This transformation allows rotations by arbitrary angles.
Edge	An edge (line segment) is represented by its starting point and end point.
IrregularRepetition	Describe a non-equispaced repetition by storing a list of offsets.
Matrix2dTransform	Description of a transformation in the euclidean plane by a 2x2 matrix A. Transforming a point p is computed by the matrix product A*p.
Matrix3dTransform	Affine transformation represented as a 3x3 matrix like:
MultiPolygon	A MultiPolygon is a list of polygons. There is no restrictions on the polygons (they can be intersecting, empty, etc.).
Path	Path is essentially a chain of line segments but with a possibly a non-zero width. It can be thought of the shape resulting by a stroke of a thick pen along the line segments.
Point	A point is defined by a x and y coordinate in the euclidean plane.
PointString	A point string is a finite sequence of points. TODO: Implement Deref for accessing the list of points.
Polygon	A polygon possibly with holes. The polygon is defined by a hull and a list of holes which are both SimplePolygons.
REdge	An rectilinear edge (horizontal or vertical line segment) is represented by its starting point and end point.
Rect	A rectangle which is oriented along the x an y axis and represented by its lower left and upper right corner.
RegularRepetition	Describe a equi-spaced n*m two-dimensional repetition as a lattice. The offsets are computed as (i*a, j*b) for i in 0..n and j in 0..m. a and b the distance vectors between two neighbouring points.
Rot90Transform	Transformation that consists only of a rotation by a multiple of 90 degrees around the origin (0, 0).
SimplePolygon	A SimplePolygon is a polygon defined by vertices. It does not contain holes but can be self-intersecting.
SimpleRPolygon	A SimpleRPolygon is a rectilinear polygon. It does not contain holes but can be self-intersecting. The vertices are stored in an implicit format (one coordinate of two neighbour vertices is always the same for rectilinear polygons). This reduces memory usage but has the drawback that edges must alternate between horizontal and vertical. Vertices between two edges of the same orientation will be dropped.
SimpleTransform	Describes a geometric transformation that consists of a optional mirroring along the x-axis followed by a rotation by a multiple of 90 degrees followed by a displacement.
Text	A text is a point associated with a string. This struct does not define how the text should be rendered on screen.
Vector	Vector defines a two dimensional vector with x and y components in the Euclidean plane.

Enums

Angle	Angle expressed as a multiple of 90 degrees.
ContainsResult	This is a result type for containment checks.
EdgeIntersection	Return type for the edge-edge intersection functions. Stores all possible results of a edge to edge intersection.
Geometry	Abstracted geometrical shape.
LineIntersection	Return type for the line-line intersection functions. Stores all possible results of a line to line intersection.
Orientation	Relative orientation of two geometrical objects such as vectors.
PathEndType	Encoding for the type of the beginning and end of the path.
REdgeIntersection	Return type for the edge-edge intersection functions. Stores all possible results of a edge to edge intersection.
REdgeOrientation	Orientation of a rectilinear edge.
RLineIntersection	Return type for the line-line intersection functions. Stores all possible results of a line to line intersection.
Repetition	Describe the regular or irregular repetition of a geometrical object.
Side	Location relative to a directed line or edge. Something can be on the left of the line, right of the line or on top of the line (center).

Constants

PREC_DISTANCE

Precision for distance related decisions.

Traits

BoundingBox	Calculation of the 'bounding box', i.e. the smallest rectangle that contains the geometrical object.
CoordinateType	Trait for types that can be used as coordinates in the euclidean plane. In practice this are integers, floats and possible rational numbers.
Deref	Used for immutable dereferencing operations, like *v.
DoubledOrientedArea	Calculate the doubled oriented area of a geometry. Using the doubled area allows to compute the area without using fractions. This is especially helpful when computing in integer coordinates.
MapPointwise	Transform the geometrical object by transforming each point of it.
Mirror	Mirror at the x or y axis.
RotateOrtho	Rotate by a integer multiple of 90 degrees.
Scale	Scale the geometrical shape. Scaling center is the origin (0, 0).
TextType	Trait for types that can be used as the text of this label. The most simple solution is to use String. However, in many cases where the same text is used in many labels it might be desirable to use 'string interning' for more efficient memory usage. Then an Rc<String> could be used for instance.
ToPolygon	Trait for the conversion of a geometric shape to a polygon.
Translate	Translate the geometrical object by a vector.
TryBoundingBox	Try the calculation of the 'bounding box', i.e. the smallest rectangle that contains the geometrical object. In some cases this is not always possible, so the try might fail. For instance a set of polygons does not have a bounding box if the set is empty.
TryCastCoord	This trait defines the type-casting of the coordinate types for geometrical objects.
WindingNumber	Compute the winding number of a geometrical object around a point. The winding number is used to check if a point is contained in a shape.
Zero	Defines an additive identity element for Self.

Type Definitions

DistanceType	Default type for euclidean distances.
FloatType	Default floating point type.