Well for GLPlot, Vector{Vector2} is just perfect ;)
Color information could be given via a color map for the iso values, or
just another Vector{Union(Vector3/4, ColorValue/AlphaColorValue)}
Am Sonntag, 29. Juni 2014 00:34:28 UTC+2 schrieb Tomas Lycken:
>
> Huzzah!
>
> We’ve just released Contour.jl <https://github.com/tlycken/Contour.jl>, a
> light-weight package that provides an algorithm to calculate iso-lines of a
> scalar 2D-field f(x,y), such as those shown on a contour plot. The current
> implementation uses the Marching Squares
> <http://en.wikipedia.org/wiki/Marching_squares> algorithm, and returns
> the contour lines in an array of ContourLevel instances, that provide an
> abstraction over the actual implementation of curves as geometrical
> objects. Currently lists of Vector2s from ImmutableArrays are used to
> represent curves, but the idea is that if e.g. a package with general
> geometry items emerges, we can seemlessly switch to that.
>
> Our hopes is that other packages that have use for isolines (e.g. all
> plotting packages that want to plot contours) use this package instead of
> each carrying their own implementation, but use cases are of course not
> limited to plotting. (I wanted to put this together because I needed to
> calculate volumes inside axisymmetric isosurfaces, and this solved a large
> part of that problem…)
>
> Please, kick the tires and see what you can do with this! =)
>
> Finally, a big thanks to Darwin Darakananda
> <https://github.com/darwindarak>, who’s done almost all the coding.
>
> // Tomas
>
>
