Copyright	(c) 2011 diagrams-lib team (see LICENSE)
License	BSD-style (see LICENSE)
Maintainer	diagrams-discuss@googlegroups.com
Safe Haskell	None
Language	Haskell2010

Diagrams.TwoD.Adjust

Description

A default diagram-adjustment implementation for two-dimensional diagrams, useful for backend implementors.

Synopsis

Documentation

setDefault2DAttributes :: Semigroup m => QDiagram b R2 m -> QDiagram b R2 m Source

Set default attributes of a 2D diagram (in case they have not been set):

Line width 0.01
- Line color black
- Font size 1
- Line cap LineCapButt
- line join miter
- Miter limit 10

adjustDiaSize2D :: Monoid' m => Lens' (Options b R2) SizeSpec2D -> b -> Options b R2 -> QDiagram b R2 m -> (Options b R2, T2, QDiagram b R2 m) Source

Adjust the size and position of a 2D diagram to fit within the requested size. The first argument is a lens into the output size contained in the rendering options. Returns an updated options record, any transformation applied to the diagram (the inverse of which can be used, say, to translate output/device coordinates back into local diagram coordinates), and the modified diagram itself.

adjustDia2D :: Monoid' m => Lens' (Options b R2) SizeSpec2D -> b -> Options b R2 -> QDiagram b R2 m -> (Options b R2, T2, QDiagram b R2 m) Source

adjustDia2D provides a useful default implementation of the adjustDia method from the Backend type class.

As its first argument it requires a lens into the output size contained in the rendering options.

It then performs the following adjustments:

Set default attributes (see setDefault2DAttributes)
Scale and translate the diagram to fit within the requested size (see adjustDiaSize2D)

It returns an updated options record, any transformation applied to the diagram (the inverse of which can be used, say, to translate output/device coordinates back into local diagram coordinates), and the modified diagram itself.