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Diffstat (limited to 'graphics/asymptote/doc/png/asymptote.info')
| -rw-r--r-- | graphics/asymptote/doc/png/asymptote.info | 161 |
1 files changed, 104 insertions, 57 deletions
diff --git a/graphics/asymptote/doc/png/asymptote.info b/graphics/asymptote/doc/png/asymptote.info index c29e943982..5c363d9e89 100644 --- a/graphics/asymptote/doc/png/asymptote.info +++ b/graphics/asymptote/doc/png/asymptote.info @@ -1,7 +1,7 @@ This is asymptote.info, produced by makeinfo version 6.7 from asymptote.texi. -This file documents 'Asymptote', version 2.73. +This file documents 'Asymptote', version 2.74. <https://asymptote.sourceforge.io> @@ -22,7 +22,7 @@ File: asymptote.info, Node: Top, Next: Description, Prev: (dir), Up: (dir) Asymptote ********* -This file documents 'Asymptote', version 2.73. +This file documents 'Asymptote', version 2.74. <https://asymptote.sourceforge.io> @@ -6646,12 +6646,14 @@ these palettes to the CMYK colorspace. function 'f'(x,y) and added to a picture 'pic': bounds image(picture pic=currentpicture, real f(real, real), range range=Full, pair initial, pair final, - int nx=ngraph, int ny=nx, pen[] palette, bool antialias=false) + int nx=ngraph, int ny=nx, pen[] palette, int divs=0, + bool antialias=false) The function 'f' will be sampled at 'nx' and 'ny' evenly spaced points over a rectangle defined by the points 'initial' and 'final', respecting the current graphical scaling of 'pic'. The color space is -scaled according to the z axis scaling (*note automatic scaling::). A -bounds structure for the function values is returned: +scaled according to the z axis scaling (*note automatic scaling::). If +'divs' > 1, the palette is quantized to 'divs'-1 values. A 'bounds' +structure for the function values is returned: struct bounds { real min; real max; @@ -6663,14 +6665,15 @@ The palette color space corresponds to a range of values specified by the argument 'range', which can be 'Full', 'Automatic', or an explicit range 'Range(real min, real max)'. Here 'Full' specifies a range varying from the minimum to maximum values of the function over the -sampling interval, while 'Automatic' selects "nice" limits. The example -'imagecontour.asy' illustrates how level sets (contour lines) can be -drawn on a color density plot (*note contour::). +sampling interval, while 'Automatic' selects "nice" limits. The +examples 'fillcontour.asy' and 'imagecontour.asy' illustrate how level +sets (contour lines) can be drawn on a color density plot (*note +contour::). A color density plot can also be generated from an explicit real[][] array 'data': bounds image(picture pic=currentpicture, real[][] f, range range=Full, - pair initial, pair final, pen[] palette, + pair initial, pair final, pen[] palette, int divs=0, bool transpose=(initial.x < final.x && initial.y < final.y), bool copy=true, bool antialias=false); If the initial point is to the left and below the final point, by @@ -7058,7 +7061,7 @@ There are six choices for viewing 3D 'Asymptote' output: 'outformat="html"'). The resulting 3D HTML file can then be viewed directly in any modern desktop or mobile browser, or even embedded within another web page: - <iframe src="logo3.html" width="210" height="140" frameborder="0"> + <iframe src="logo3.html" width="561" height="321" frameborder="0"> </iframe> Normally, 'WebGL' files generated by 'Asymptote' are dynamically @@ -7999,13 +8002,57 @@ draw(Labels,contour(f,(-1,-1),(1,1),c),p); [./multicontour] - The next example illustrates how contour lines can be drawn on color -density images: + The next examples illustrates how contour lines can be drawn on color +density images, with and without palette quantization: import graph; import palette; import contour; -size(10cm,10cm,IgnoreAspect); +size(10cm,10cm); + +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=1; +int n=Divs*divs; + +defaultpen(1bp); +pen Tickpen=black; +pen tickpen=gray+0.5*linewidth(currentpen); +pen[] Palette=quantize(BWRainbow(),n); + +bounds range=image(f,Automatic,a,b,3N,Palette,n); + +real[] Cvals=uniform(range.min,range.max,Divs); +draw(contour(f,a,b,Cvals,N,operator --),Tickpen+squarecap+beveljoin); + +// Major contours +real[] Cvals=uniform(range.min,range.max,Divs); +draw(contour(f,a,b,Cvals,N,operator --),Tickpen+squarecap+beveljoin); + +// Minor contours (if divs > 1) +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(SE)+(0.5,0),point(NE)+(1,0),Right,Palette, + PaletteTicks("$%+#0.1f$",N=Divs,n=divs,Tickpen,tickpen)); + + [./fillcontour] + +import graph; +import palette; +import contour; + +size(10cm,10cm); pair a=(0,0); pair b=(2pi,2pi); @@ -8014,7 +8061,7 @@ real f(real x, real y) {return cos(x)*sin(y);} int N=200; int Divs=10; -int divs=2; +int divs=1; defaultpen(1bp); pen Tickpen=black; @@ -8024,21 +8071,20 @@ pen[] Palette=BWRainbow(); 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); +draw(contour(f,a,b,Cvals,N,operator --),Tickpen+squarecap+beveljoin); -// Minor contours +// Minor contours (if divs > 1) 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); +draw(contour(f,a,b,cvals,N,operator --),tickpen+squarecap+beveljoin); 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)); +palette("$f(x,y)$",range,point(SE)+(0.5,0),point(NE)+(1,0),Right,Palette, + PaletteTicks("$%+#0.1f$",N=Divs,n=divs,Tickpen,tickpen)); [./imagecontour] @@ -9114,6 +9160,7 @@ Index * BottomView: three. (line 439) * bounding box: Frames and pictures. (line 180) +* bounds: palette. (line 43) * Bounds: graph3. (line 21) * box: Frames and pictures. (line 25) @@ -9557,7 +9604,7 @@ Index * IgnoreAspect: Frames and pictures. (line 63) * image: palette. (line 33) -* image <1>: palette. (line 58) +* image <1>: palette. (line 61) * image-based lighting: three. (line 104) * ImageMagick: Configuring. (line 74) * ImageMagick <1>: animation. (line 6) @@ -10300,7 +10347,7 @@ Index * trembling: trembling. (line 6) * triangle: geometry. (line 6) * triangles: three. (line 154) -* triangulate: contour. (line 149) +* triangulate: contour. (line 192) * tridiagonal: Arrays. (line 278) * trigonometric integrals: Mathematical functions. (line 48) @@ -10568,41 +10615,41 @@ Ref: errorbars245871 Ref: automatic scaling251000 Node: palette262710 Ref: images262828 -Ref: image267002 -Ref: logimage267523 -Ref: penimage268629 -Ref: penfunctionimage268892 -Node: three269664 -Ref: PostScript3D299799 -Node: obj301537 -Node: graph3301786 -Ref: GaussianSurface307068 -Node: grid3308218 -Node: solids309003 -Node: tube309995 -Node: flowchart312225 -Node: contour316868 -Node: contour3322183 -Node: smoothcontour3322495 -Node: slopefield324214 -Node: ode325703 -Node: Options325960 -Ref: configuration file333448 -Ref: settings333448 -Ref: texengines334712 -Ref: convert334712 -Node: Interactive mode338155 -Ref: history340304 -Node: GUI341607 -Node: GUI installation342157 -Node: GUI usage342890 -Node: Command-Line Interface343953 -Node: Language server protocol345395 -Node: PostScript to Asymptote346820 -Node: Help347598 -Node: Debugger349272 -Node: Credits351028 -Node: Index352205 +Ref: image267124 +Ref: logimage267645 +Ref: penimage268751 +Ref: penfunctionimage269014 +Node: three269786 +Ref: PostScript3D299921 +Node: obj301659 +Node: graph3301908 +Ref: GaussianSurface307190 +Node: grid3308340 +Node: solids309125 +Node: tube310117 +Node: flowchart312347 +Node: contour316990 +Node: contour3323498 +Node: smoothcontour3323810 +Node: slopefield325529 +Node: ode327018 +Node: Options327275 +Ref: configuration file334763 +Ref: settings334763 +Ref: texengines336027 +Ref: convert336027 +Node: Interactive mode339470 +Ref: history341619 +Node: GUI342922 +Node: GUI installation343472 +Node: GUI usage344205 +Node: Command-Line Interface345268 +Node: Language server protocol346710 +Node: PostScript to Asymptote348135 +Node: Help348913 +Node: Debugger350587 +Node: Credits352343 +Node: Index353520 End Tag Table |