[NTG-context] MetaPost Question

Context NTG contextntg at gmail.com
Sun Dec 6 21:54:38 CET 2015


I am trying to graph a cylinder. Is there a way to draw a more elliptic
top/bottom. This one seems some flattened at the top and bottom. I would
like to hatch the mid elliptic that is collored grey now. Is there a way to
do this.

Thanks
Jeroen



\placefigure

[here,force]

[fig:tubing]

{Tubular Linear Volumetric Capacity}

{\startMPcode


draw (0,0){up} ... (1.25cm, 2mm) ... (2.5cm,0){down} ... (1.25cm, -2mm) ...
cycle;

draw (0,0) -- (0,-5cm) dashed evenly;

draw (2.5cm,0) -- (2.5cm,-5cm) dashed evenly;

draw (0,-5cm){up} ... (1.25cm, -4.8cm) ... (2.5cm,-5cm){down} ... (1.25cm,
-5.2cm) ... cycle dashed evenly;


draw (-.2cm,0){up} ... (1.25cm, 3.5mm) ... (2.7cm,0){down} ... (1.25cm,
-3.5mm) ... cycle;

draw (-.2cm,0) -- (-.2cm,-5cm);

draw (2.7cm,0) -- (2.7cm,-5cm);

draw (-.2cm,-5cm){up} ... (1.25cm, -4.7cm) ... (2.7cm,-5cm){down} dashed
evenly;

draw (-.2cm,-5cm){down} ... (1.25cm, -5.3cm) ... (2.7cm,-5cm){up};


fill (0,-2.5cm){up} ... (1.25cm, -2.3cm) ... (2.5cm,-2.5cm){down} ...
(1.25cm, -2.7cm) ... cycle withcolor (.6,.6,.6) dashed evenly;

label.top("tubular",(1.26cm,-1.1cm));

label.top("inside area",(1.28cm,-1.6cm));

label.top("($in^2$)",(1.28cm,-2.2cm));


draw (3.25cm,-5cm) -- (3.25cm,0);

drawarrow (3.25cm,-5) -- (3.25cm,0);

drawarrow (3.25cm,0) -- (3.25cm,-5cm);

label.top("tubular length ($in$)",(5.2cm,-2.75cm));


\stopMPcode}
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