Figure Asymptote geometry -- 104
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Show geometry/fig1040.asy on Github.
Generated with Asymptote 3.00-0.
Categories : Examples 2D | Geometry.asy
Tags : #Geometry | #Arc | #Ellipse | #Intersection | #Line | #Coords system | #Tangent
import geometry; size(10cm,0); // currentcoordsys=cartesiansystem((1,2),i=(1,0.5),j=(-0.5,.75)); // show(currentcoordsys, xpen=invisible); real R=2; point A=(1,1.5); dot("$A$",A,S,red); point B=A+(2.5,1); dot("$B$",B,E,blue); arc a=arc(ellipse(A,R,R/2,30),-40,180); // ellispenodesnumberfactor=400; arc b=arc(ellipse(B,2R,R/2,-10),-30,180); draw(a,red); draw(b,blue); point M=intersectionpoints(a,b)[0]; dot(M); /*<asyxml><view file="modules/geometry.asy" type="line" signature="tangent(explicit arc,point)"/></asyxml>*/ draw(tangent(a,M), grey); draw(tangent(b,M), grey); /*<asyxml><view file="modules/geometry.asy" type="line" signature="tangent(explicit arc,abscissa)"/></asyxml>*/ draw(tangent(a,angabscissa(45)), grey);