Difference between revisions of "Asymptote: CSE5"
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==Function List== | ==Function List== | ||
=== Mark Angle ( MA ) === | === Mark Angle ( MA ) === | ||
| − | + | pair MA(real a,Label s,int f,pen p,pair B,pair A,pair C,real r,int m,pair P,pen q) | |
| − | + | The '''MA()''' or '''MarkAngle()''' command is a competitor of the olympiad '''anglemark()'''. The usage is | |
| + | '''MA(''' ''a,s,f,p'','''B,A,C,r''',''m,S,q'' ''')''' | ||
| + | (the necessary arguments are bold and the optional ones are italic). Here | ||
| + | |||
| + | ''a'' is the angle by which you want to rotate the label in degrees (0 by default); | ||
| + | |||
| + | ''s'' is the string labelling the angle (empty string by default); the dollar (or now rather \(...\)) delimeters will be added automatically as in other cse5 labelling commands; | ||
| + | |||
| + | ''f'' is the fontsize for your label (currently 9 by default; can be also reset by the '''anglefontsize=...''' command); | ||
| + | |||
| + | ''p'' is the pen you wish to use for the label (red by default; can be also reset by the '''anglefontpen=...''' command); | ||
| + | |||
| + | '''B,A,C''' are the pairs determining the angle <math>\angle BAC</math> with the vertex <math>A</math>. The arcs are drawn counterclockwise from the side <math>AB</math> to the side <math>AC</math>; | ||
| + | |||
| + | '''r''' the radius of the largest arc in the anglemark; | ||
| + | |||
| + | ''m'' the number of arcs in the anglemark (<math>1</math> by default). Can be set to <math>0</math>, in which case no arcs will be drawn, <math>1</math> through <math>7</math>, in which case <math>m</math> arcs will be drawn, and anything <math>>7</math> in which case the sector will be filled with color; | ||
| + | |||
| + | ''S'' allows you to position the label manually with respect to the middle point of the largest arc. The automatic positioning is where you, probably, want it to be the most: on the bisector of the angle right beyond the largest arc in the anglemark. | ||
| + | |||
| + | ''q'' is the pen used for drawing the arcs or filling the sector (green by default; can be also reset by the '''anglepen=...''' command). | ||
| + | |||
| + | '''MA()''' returns the vertex of the angle. | ||
| + | |||
| + | Example of usage: | ||
| + | <pre> | ||
| + | size(200); | ||
| + | pair A=dir(-40), B=dir(0); | ||
| + | for(int k=0;k<9;++k) | ||
| + | { | ||
| + | pair C=dir(40*(k+1)); | ||
| + | D(A--D(MA(k*40+90,"\beta_{"+string(k)+"}",12,black,C,B,A,0.1,k,orange))--C); | ||
| + | A=B;B=C; | ||
| + | } | ||
| + | </pre> | ||
| + | results in | ||
| + | <asy> | ||
| + | size(200); | ||
| + | pair A=dir(-40), B=dir(0); | ||
| + | for(int k=0;k<9;++k) | ||
| + | { | ||
| + | pair C=dir(40*(k+1)); | ||
| + | D(A--D(MA(k*40+90,"\beta_{"+string(k)+"}",12,black,C,B,A,0.1,k,orange))--C); | ||
| + | A=B;B=C; | ||
| + | } | ||
| + | </asy> | ||
== See Also == | == See Also == | ||
*<url>viewtopic.php?t=149650 Description of the package</url> by [[AoPS]] user [[User:fedja|fedja]]. | *<url>viewtopic.php?t=149650 Description of the package</url> by [[AoPS]] user [[User:fedja|fedja]]. | ||
Revision as of 13:45, 2 April 2008
The Asymptote CSE5 package is a useful package that is supported on the AoPS forum. It is much larger than most other packages, and contains doubles of each function; a function with a full name and a function with an abbreviated name.
Function List
Mark Angle ( MA )
pair MA(real a,Label s,int f,pen p,pair B,pair A,pair C,real r,int m,pair P,pen q)
The MA() or MarkAngle() command is a competitor of the olympiad anglemark(). The usage is MA( a,s,f,p,B,A,C,r,m,S,q ) (the necessary arguments are bold and the optional ones are italic). Here
a is the angle by which you want to rotate the label in degrees (0 by default);
s is the string labelling the angle (empty string by default); the dollar (or now rather \(...\)) delimeters will be added automatically as in other cse5 labelling commands;
f is the fontsize for your label (currently 9 by default; can be also reset by the anglefontsize=... command);
p is the pen you wish to use for the label (red by default; can be also reset by the anglefontpen=... command);
B,A,C are the pairs determining the angle 
with the vertex 
. The arcs are drawn counterclockwise from the side 
to the side 
;
r the radius of the largest arc in the anglemark;
m the number of arcs in the anglemark (
by default). Can be set to 
, in which case no arcs will be drawn, through 
, in which case 
arcs will be drawn, and anything 
in which case the sector will be filled with color;
S allows you to position the label manually with respect to the middle point of the largest arc. The automatic positioning is where you, probably, want it to be the most: on the bisector of the angle right beyond the largest arc in the anglemark.
q is the pen used for drawing the arcs or filling the sector (green by default; can be also reset by the anglepen=... command).
MA() returns the vertex of the angle.
Example of usage:
size(200);
pair A=dir(-40), B=dir(0);
for(int k=0;k<9;++k)
{
pair C=dir(40*(k+1));
D(A--D(MA(k*40+90,"\beta_{"+string(k)+"}",12,black,C,B,A,0.1,k,orange))--C);
A=B;B=C;
}
results in
![[asy] size(200); pair A=dir(-40), B=dir(0); for(int k=0;k<9;++k) { pair C=dir(40*(k+1)); D(A--D(MA(k*40+90,"\beta_{"+string(k)+"}",12,black,C,B,A,0.1,k,orange))--C); A=B;B=C; } [/asy]](http://latex.artofproblemsolving.com/d/3/d/d3d6b23b676572ba7d5869c1800feedf2ac8fb48.png)
