Data.Geometry.Svg.MathCoordinateSystem

Description :

Defines functions to make sure we render the coordinate system in svg correctly, i.e. with the origin in the bottom-left instead of top-left.

Documentation

data Canvas r

Svg Canvas that has a "proper" Coordinate system whose origin is in the bottom left.

Constructors

Canvas (Vector 2 Int) (Point 2 r) r

Instances

Eq r => Eq (Canvas r)

Defined in Data.Geometry.Svg.MathCoordinateSystem

Methods

(==) :: Canvas r -> Canvas r -> Bool

(/=) :: Canvas r -> Canvas r -> Bool

Show r => Show (Canvas r)

Defined in Data.Geometry.Svg.MathCoordinateSystem

Methods

showsPrec :: Int -> Canvas r -> ShowS

show :: Canvas r -> String

showList :: [Canvas r] -> ShowS

center :: Lens' (Canvas r) (Point 2 r)

dimensions :: Lens' (Canvas r) (Vector 2 Int)

zoomLevel :: Lens' (Canvas r) r

createCanvas :: Num r => Int -> Int -> Canvas r

Create a canvas

renderCanvas :: RealFrac r => Canvas r -> [Attribute] -> Svg -> Svg

Draws the actual canvas

text_

Arguments

:: Real r

=> Point 2 r

position where to draw (in world coordinates)

-> [Attribute]

-> Text

-> Svg

To be used instead of the text_ combinator in Blaze

realWorldCoordinates :: Fractional r => Canvas r -> Point 2 Int -> Point 2 r

Computes the mouse position in terms of real world coordinates. pre: the coordinates given lie on the canvas

toAValue :: Show a => a -> AttributeValue

toPValue :: Real r => r -> AttributeValue

showP :: Real a => a -> Pico

show by converting to a Pico