I guess the code I am looking for is the below to hatch the cut-out section. How can I load the MetaPost hatching package in Context minimals so it understands the hatchfill command?

Thanks

Jeroen

\startMPinclusions

input hatching;

\stopMPinclusions

\starttext

\placefigure[here,force][fig:tubing]{Tubular Linear Volumetric Capacity}

{\startMPcode

% inner circle

draw fullcircle xscaled 2.5cm yscaled 0.7cm shifted (1.25cm,0);

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

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

draw fullcircle xscaled 2.5cm yscaled 0.7cm shifted (1.25cm,-5cm) dashed evenly;

%outer circle

draw fullcircle xscaled 2.9cm yscaled 1cm shifted (1.25cm,0);

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

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

draw halfcircle scaled 2.9cm yscaled 0.012cm shifted (1.25cm,-5cm) dashed evenly;

draw halfcircle scaled 2.9cm yscaled 0.012cm rotated 180 shifted (1.25cm,-5cm);

%cut-out section

hatchfill circle withcolor (45, 5mm, -.5bp);

fill fullcircle xscaled 2.5cm yscaled 0.7cm shifted (1.25cm,-2.7cm) withcolor (.6,.6,.6);

label.top("tubular",(1.26cm,-1.3cm));

label.top("inside area",(1.28cm,-1.8cm));

label.top("($in^2$)",(1.28cm,-2.4cm));

%arrows and label ID

drawarrow (0,-4.1cm) -- (2.5cm,-4.1cm);

drawarrow (2.5cm,-4.1cm) -- (0,-4.1cm);

label.top("ID ($in$)",(1.26cm,-4.15cm));

%arrows and label tubular length

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}

\stoptext

2015-12-06 21:54 GMT+01:00 Context NTG <contextntg@gmail.com>:

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}