Clojure Scalable Vector Graphics - SVG

Scalable Vector Graphics, SVG, is an image format for two-dimensional (2D) graphics.

An SVG image uses data to describe how to draw an image, ensuring that images can shrink and scale easily and retain a high quality image. As images are formed from data, shapes can easily be combined or intersected to form new shapes. Using a data format also means SVG images can be created from code and therefore animated.

Raster image formats like gif, jpeg and png use a grid of squares called pixels to define an image (also known as a bitmap). Each pixel has a colour and position in an image. When zooming into an image the pixels grow larger distorting the sharpness of an image, referred to as pixelation, .Multiple versions of raster images are often created at different resolutions to reduce the loss of quality when viewed at different sizes.

Work in progress

Concepts

  • viewbox
  • style - border, background, width, height, stoke, fill, draw (path)
  • shapes - circle, path

Viewbox

A viewbox defines a co-ordinate system for the image. Defining a size for the viewbox defining a frame for the image where positions are relative to that frame, irrespective of the size of the image or how that image is scaled.

A viewbox size should be selected to make the image as simple as possible to define within itself.

Example: tictactoe O's and X's and the grid that represents the board.

tictactoe O's and X's and the grid that represents the board

  • TicTacToe with ClojureScript, Reagent and SVG
  • System monitoring
  • Practicalli SVG examples library
  • Programming SVG with Clojure (TODO)

References

results matching ""

    No results matching ""