# MPgraph

MPgraph is a plotting package based on MetaPost.

An alternative package is Pgfplot using TikZ.

## Example

 TODO: update or provides .dat files to have a MWE (See: To-Do List)

(Data on low-temperature thermal expansion coefficients downloaded from [1]) (and more specifically on this page but there is a need to reshape the .dat files).

```\usemodule[graph]
\setupcolors[state=start]

\startuseMPgraphic{graph::nist}
color orange;
orange = (1,.5,0);
input graph
draw begingraph(16cm,12cm);
setrange(0,whatever,300,whatever);
glabel.bot(btex \$T\$ (K) etex, OUT);
glabel.lft(btex \$(L-L_{293})/L_{293}\$ etex rotated 90, OUT);
glabel.top(btex http://cryogenics.nist.gov/ etex, OUT);
gdraw "sapphire.dat" withcolor red;
glabel.urt(btex sapphire etex, 0);
gdraw "Be.dat" withcolor green;
glabel.urt(btex Be etex, 0);
gdraw "BeCu.dat" withcolor blue;
glabel.urt(btex BeCu etex, 0);
gdraw "SS304.dat" withcolor cyan;
glabel.urt(btex SS304 etex, 0);
gdraw "Al6061-T6.dat" withcolor magenta;
glabel.urt(btex Al6061-T6 etex, 0);
gdraw "nylon.dat" withcolor orange;
glabel.urt(btex nylon etex, 0);
endgraph;
\stopuseMPgraphic
\useMPgraphic{graph::nist}
```