## Asymptote using geometry.asy – fig0160

Category: Asymptote,Examples 2D,geometry.asyPh. Ivaldi @ 21 h 02 min

 (Compiled with Asymptote version 2.14svn-r5318)

size(10cm);
import geometry;
dotfactor*=1.5;
linemargin = 5mm;

currentcoordsys=cartesiansystem((2,1),i=(1,1),j=(-4,1));
show(currentcoordsys);

point A=(1,1), B=(2,1);
/* View the definition of struct line */
line l1=line(A,B);/* View the definition of line line(point,bool,point,bool) */

/* View the definition of void draw(picture,Label,line,bool,bool,align,pen,arrowbar,Label,marker) */
draw(l1,red);
dot("$A$",A);
dot("$B$",B);

for (int i=0; i<10; ++i){
}



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## Asymptote using geometry.asy – fig0240

Category: Asymptote,Examples 2D,geometry.asyPh. Ivaldi @ 5 h 02 min

 (Compiled with Asymptote version 2.14svn-r5318)

import geometry;
size(15cm,0);

// currentcoordsys=cartesiansystem((2,1),i=(1,0.25),j=(-0.25,.75));
// show(lj=Label("$\vec{\jmath}$",EndPoint), currentcoordsys);

point A=(-1,-0.5);
point B=(1,-0.5);
point C=(-1,0.5);

line l1=line(A,B);
draw("$(l_1)$",l1,red);

/* View the definition of struct segment */
segment s=segment(A,B);
draw(s, linewidth(2bp));
dot("$A$", A, SW);
dot("$B$", B, SE);
dot("$C$", C, S);

segment s1=parallel(C,s);
draw(Label("$s_1$",Relative(0.75)),s1);

Label lt=Label("Complementary of $s_1$",Relative(0.5),align=N,grey);
Label[] L={lt, lt};

/* View the definition of line[] complementary(explicit segment) */
line[] cs1=complementary(s1);

/* View the definition of void draw(picture,Label[],line[],align,pen,arrowbar,Label,marker) */
draw(L, cs1, 2mm+lightgrey);

draw(box(locate((-2.5,-1)),locate((2.5,1))), invisible);



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## Asymptote using geometry.asy – fig0330

Category: Asymptote,Examples 2D,geometry.asyPh. Ivaldi @ 14 h 02 min

 (Compiled with Asymptote version 2.14svn-r5318)

import geometry;
size(10cm);

point F=(2,-1.5);
dot("$F$",F,N,red);

// Enlarge the bounding box of the current picture.
draw(box((-1,-1),(3,1.5)),dashed);//,invisible);

parabola p=parabola(F,0.2,90);

// Define the bounding box to draw the parabola.
// Try finalbounds(); to determine the final bounding box.
p.bmin=(-0.75,-0.4);
p.bmax=(2.75,0.75);

draw(box(p.bmin,p.bmax),red);

draw(p,dashed);/* Defered drawing to adjust the path to the final
bounding box.*/

draw((path)p,red); /* The path of 'p' is restricted to the box whose
the corners are p.bmin, p.bmax.*/



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## Asymptote using geometry.asy – fig0340

Category: Asymptote,Examples 2D,geometry.asyPh. Ivaldi @ 15 h 02 min

 (Compiled with Asymptote version 2.14svn-r5318)

import geometry;
size(10cm,0);

// currentcoordsys=cartesiansystem((2,1),i=(1,0.5),j=(-0.25,.75));
// show(currentcoordsys);

point F1=(1,0);
point F2=(4,1);
dot("$F_1$",F1,W);
dot("$F_2$",F2);

// Enlarge the bounding box of the current picture
draw(box((0,-2), (5,4)), invisible);

/* View the definition of hyperbola hyperbola(point,point,real,bool) */
hyperbola h=hyperbola(F1, F2, 0.9);
draw(h, linewidth(3mm));
draw(h.A1, grey);
draw(h.A2, grey);
draw(h.D1);
draw(h.D2);

/* View the definition of hyperbola hyperbola(point,real,real,real) */
draw(hyperbola(h.C, h.a, h.b, h.angle), 2mm+green);

/* View the definition of hyperbola hyperbola(bqe) */
draw(hyperbola(equation(h)), 1mm+red);

/* View the definition of hyperbola conj(hyperbola) */
hyperbola ch=conj(h);
draw(ch, blue);
draw(ch.A1, 0.5blue);
draw(ch.A2, 0.5blue);
draw(ch.D1);
draw(ch.D2);
dot("${V'}_1$", ch.V1, NE);
dot("${V'}_2$", ch.V2, SW);
dot("${F'}_1$", ch.F1, S);
dot("${F'}_2$", ch.F2, N);

dot("$V_1$", h.V1, 2E, linewidth(2mm));
dot("$V_2$", h.V2, 2W, linewidth(2mm));



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## Asymptote using geometry.asy – fig0760

Category: Asymptote,Examples 2D,geometry.asyPh. Ivaldi @ 9 h 02 min

 (Compiled with Asymptote version 2.14svn-r5318)

import geometry;
size(12cm);

// currentcoordsys=cartesiansystem((2,1),i=(1,0.5),j=(-0.25,0.75));
// currentcoordsys=cartesiansystem((2,1),i=rotate(45)*(1,0),j=rotate(45)*(0,1));
// show(currentcoordsys);

conic co[];
co[0]=circle((point)(0,0),1);
/* View the definition of void draw(picture,Label,explicit conic,align,pen,arrowbar,arrowbar,margin,Label,marker) */
draw(co[0]);

co[1]=ellipse((point)(0,0),4,1);
draw(co[1]);

co[2]=parabola((0,0),1,90);
draw(co[2]);

hyperbola h=hyperbola((-1,0),(1,0),1.2,byvertices);
co[3]=h;
draw(co[3]);
draw(h.A1,grey);
draw(h.A2,grey);

dotfactor *= 1;

for (int i=0; i < 4; ++i) {
dot(intersectionpoints(h.A1,co[i]),blue);
dot(intersectionpoints(h.A2,co[i]),blue);
for (int j=i+1; j < 4; ++j)
/* View the definition of point[] intersectionpoints(conic,conic) */
dot(intersectionpoints(co[i],co[j]), red);
}



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## Official Asymptote example – equilateral

Category: Asymptote,Official Gallery One-PagerPh. Ivaldi @ 20 h 57 min

 (Compiled with Asymptote version 2.14svn-r5318)
/* This code comes from The Official Asymptote Gallery */

size(10cm,0);
import math;

pair b=(0,0), c=(1,0);
pair a=extension(b,b+dir(60),c,c+dir(120));
pair d=extension(b,b+dir(30),a,a+dir(270));

draw(a--b--c--a--d--b^^d--c);
label("$A$",a,N);
label("$B$",b,W);
label("$C$",c,E);
label("$D$",d,S);



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## Official Asymptote example – labelsquare

Category: Asymptote,Official Gallery One-PagerPh. Ivaldi @ 18 h 57 min

 (Compiled with Asymptote version 2.14svn-r5318)
/* This code comes from The Official Asymptote Gallery */

size(3cm);
draw(unitsquare);
label("$A$",(0,0),SW);
label("$B$",(1,0),SE);
label("$C$",(1,1),NE);
label("$D$",(0,1),NW);



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## Official Asymptote example – quartercircle

Category: Asymptote,Official Gallery One-PagerPh. Ivaldi @ 1 h 57 min

 (Compiled with Asymptote version 2.14svn-r5318)
/* This code comes from The Official Asymptote Gallery */

size(100,0);
draw((1,0){up}..{left}(0,1),Arrow);



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## Official Asymptote example – yingyang

Category: Asymptote,Official Gallery One-PagerPh. Ivaldi @ 6 h 57 min

 (Compiled with Asymptote version 2.14svn-r5318)
/* This code comes from The Official Asymptote Gallery */

size(0,25cm);
guide center=(0,1){W}..tension 0.8..(0,0){(1,-.5)}..tension 0.8..{W}(0,-1);

draw((0,1)..(-1,0)..(0,-1));
filldraw(center{E}..{N}(1,0)..{W}cycle);
unfill(circle((0,0.5),0.125));
fill(circle((0,-0.5),0.125));



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