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Diffstat (limited to 'Build/source/utils/asymptote/doc/imagecontour.asy')
-rw-r--r-- | Build/source/utils/asymptote/doc/imagecontour.asy | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Build/source/utils/asymptote/doc/imagecontour.asy b/Build/source/utils/asymptote/doc/imagecontour.asy new file mode 100644 index 00000000000..25fdb3f6ed4 --- /dev/null +++ b/Build/source/utils/asymptote/doc/imagecontour.asy @@ -0,0 +1,40 @@ +import graph; +import palette; +import contour; + +size(10cm,10cm,IgnoreAspect); + +pair a=(0,0); +pair b=(2pi,2pi); + +real f(real x, real y) {return cos(x)*sin(y);} + +int N=200; +int Divs=10; +int divs=2; + +defaultpen(1bp); +pen Tickpen=black; +pen tickpen=gray+0.5*linewidth(currentpen); +pen[] Palette=BWRainbow(); + +scale(false); + +bounds range=image(f,Automatic,a,b,N,Palette); + +// Major contours + +real[] Cvals=uniform(range.min,range.max,Divs); +draw(contour(f,a,b,Cvals,N,operator --),Tickpen); + +// Minor contours +real[] cvals; +for(int i=0; i < Cvals.length-1; ++i) + cvals.append(uniform(Cvals[i],Cvals[i+1],divs)[1:divs]); +draw(contour(f,a,b,cvals,N,operator --),tickpen); + +xaxis("$x$",BottomTop,LeftTicks,above=true); +yaxis("$y$",LeftRight,RightTicks,above=true); + +palette("$f(x,y)$",range,point(NW)+(0,0.5),point(NE)+(0,1),Top,Palette, + PaletteTicks(N=Divs,n=divs,Tickpen,tickpen)); |