import fontsize; usepackage("asycolors"); bool reverse=false; // Set to true to enable reverse video. bool stepping=false; // Set to true to enable stepping. bool itemstep=true; // Set to false to disable stepping on each item. settings.toolbar=false; // Disable 3D toolbar by default. if(settings.render < 0) settings.render=4; bool allowstepping=false; // Allow stepping for current slide. real pagemargin=0.5cm; real pagewidth=-2pagemargin; real pageheight=-2pagemargin; bool landscape=orientation == Landscape || orientation == Seascape; if(landscape) { orientation=Portrait; pagewidth += settings.paperheight; pageheight += settings.paperwidth; } else { pagewidth += settings.paperwidth; pageheight += settings.paperheight; } size(pagewidth,pageheight,IgnoreAspect); picture background; real minipagemargin=1inch; real minipagewidth=pagewidth-2minipagemargin; transform tinv=inverse(fixedscaling((-1,-1),(1,1),currentpen)); pen itempen=fontsize(24pt); pen codepen=fontsize(20pt); pen titlepagepen=fontsize(36pt); pen authorpen=fontsize(24pt); pen institutionpen=authorpen; pen datepen=fontsize(18pt); pen urlpen=datepen; real itemskip=0.5; real codeskip=0.25; pair dateskip=(0,0.1); pair urlskip=(0,0.2); pair titlealign=3S; pen titlepen=fontsize(32pt); real titleskip=0.5; string oldbulletcolor; string newbulletcolor="red"; string bullet="{\bulletcolor\textbullet}"; pair pagenumberposition=S+E; pair pagenumberalign=4NW; pen pagenumberpen=fontsize(12); pen steppagenumberpen=colorless(pagenumberpen); real figureborder=0.25cm; pen figuremattpen; pen backgroundcolor; pen foregroundcolor; pair titlepageposition=(-0.8,0.4); pair startposition=(-0.8,0.9); pair currentposition=startposition; string bulletcolor(string color) { return "\def\bulletcolor{"+'\\'+"color{"+color+"}}%"; } int[] firstnode=new int[] {currentpicture.nodes.length}; int[] lastnode; bool firststep=true; int page=0; bool havepagenumber=true; int preamblenodes=2; bool empty() { return currentpicture.nodes.length <= preamblenodes; } void background() { if(!background.empty()) { add(background); layer(); preamblenodes += 2; } } void color(string name, string color) { texpreamble("\def"+'\\'+name+"#1{{\color{"+color+"}#1}}%"); } string texcolor(pen p) { real[] colors=colors(p); string s; if(colors.length > 0) { s="{"+colorspace(p)+"}{"; for(int i=0; i < colors.length-1; ++i) s += format("%.6f",colors[i],"C")+","; s += format("%.6f",colors[colors.length-1],"C")+"}"; } return s; } void setpens(pen red=red, pen blue=blue, pen steppen=red) { itempen=colorless(itempen); codepen=colorless(codepen); pagenumberpen=colorless(pagenumberpen); steppagenumberpen=colorless(steppagenumberpen)+steppen; titlepagepen=colorless(titlepagepen)+red; authorpen=colorless(authorpen)+blue; institutionpen=colorless(institutionpen)+blue; datepen=colorless(datepen); urlpen=colorless(urlpen); } void reversevideo() { backgroundcolor=black; foregroundcolor=white; fill(background,box((-1,-1),(1,1)),backgroundcolor); setpens(mediumred,paleblue,mediumblue); // Work around pdflatex bug, in which white is mapped to black! figuremattpen=pdf() ? cmyk(0,0,0,1/255) : white; color("Red","mediumred"); color("Green","green"); color("Blue","paleblue"); color("Foreground","white"); color("Background","black"); oldbulletcolor="white"; defaultpen(itempen+foregroundcolor); } void normalvideo() { backgroundcolor=invisible; foregroundcolor=black; background=new picture; size(background,currentpicture); setpens(); figuremattpen=invisible; color("Red","red"); color("Green","heavygreen"); color("Blue","blue"); color("Foreground","black"); color("Background","white"); oldbulletcolor="black"; defaultpen(itempen+foregroundcolor); } normalvideo(); texpreamble(bulletcolor(newbulletcolor)); texpreamble("\hyphenpenalty=10000\tolerance=1000"); // Evaluate user command line option. void usersetting() { plain.usersetting(); if(reverse) { // Black background reversevideo(); } else { // White background normalvideo(); } } void numberpage(pen p=pagenumberpen) { if(havepagenumber) { label((string) page,pagenumberposition,pagenumberalign,p); } } void nextpage(pen p=pagenumberpen) { if(!empty()) { numberpage(p); newpage(); } background(); firststep=true; } void newslide(bool stepping=true) { allowstepping=stepping; nextpage(); ++page; havepagenumber=true; currentposition=startposition; firstnode=new int[] {currentpicture.nodes.length}; lastnode.delete(); } bool checkposition() { if(abs(currentposition.x) > 1 || abs(currentposition.y) > 1) { newslide(); return false; } return true; } void erasestep(int erasenode) { if(!stepping || !allowstepping) return; if(!checkposition()) return; lastnode.push(erasenode); nextpage(steppagenumberpen); for(int i=0; i < firstnode.length; ++i) { for(int j=firstnode[i]; j <= lastnode[i]; ++j) { tex(bulletcolor(oldbulletcolor)); currentpicture.add(currentpicture.nodes[j]); } } firstnode.push(currentpicture.nodes.length-1); tex(bulletcolor(newbulletcolor)); } void step() { // Step without erasing anything. erasestep(currentpicture.nodes.length-1); } void incrementposition(pair z) { currentposition += z; } void title(string s, pair position=N, pair align=titlealign, pen p=titlepen, bool newslide=true) { if(newslide) newslide(); checkposition(); frame f; if(s != "") label(f,minipage("\center "+s,minipagewidth),(0,0),align,p); add(f,position,labelmargin(p)*align); currentposition=(currentposition.x,position.y+ (tinv*(min(f)-titleskip*I*lineskip(p)*pt)).y); } void outline(string s="Outline", pair position=N, pair align=titlealign, pen p=titlepen) { newslide(stepping=false); title(s,position,align,p,newslide=false); } void remark(bool center=false, string s, pair align=0, pen p=itempen, real indent=0, bool minipage=true, real skip=itemskip, filltype filltype=NoFill, bool step=false) { checkposition(); if(minipage) s=minipage(s,minipagewidth); pair offset; if(center) { if(align == 0) align=S; offset=(0,currentposition.y); } else { if(align == 0) align=SE; offset=currentposition; } frame f; label(f,s,(indent,0),align,p,filltype); pair m=tinv*min(f); pair M=tinv*min(f); if(abs(offset.x+M.x) > 1) warning("slidetoowide","slide too wide on page "+(string) page+':\n'+ (string) s); if(abs(offset.y+M.y) > 1) { void toohigh() { warning("slidetoohigh","slide too high on page "+(string) page+':\n'+ (string) s); } if(M.y-m.y < 2) { newslide(); offset=(offset.x,currentposition.y); if(offset.y+M.y > 1 || offset.y+m.y < -1) toohigh(); } else toohigh(); } if(step) { if(!firststep) step(); firststep=false; } add(f,offset); incrementposition((0,(tinv*(min(f)-skip*I*lineskip(p)*pt)).y)); } void center(string s, pen p=itempen) { remark("\center "+s,p); } void equation(string s, pen p=itempen) { remark(center=true,"\vbox{$$"+s+"$$}",p,minipage=false,skip=0); } void vbox(string s, pen p=itempen) { remark(center=true,"\vbox{"+s+"}",p,minipage=false,skip=0); } void equations(string s, pen p=itempen) { vbox("\begin{eqnarray*}"+s+"\end{eqnarray*}",p); } void skip(real n=1) { incrementposition((0,(tinv*(-n*itemskip*I*lineskip(itempen)*pt)).y)); } void display(frame[] f, real margin=0, pair align=S, pen p=itempen, pen figuremattpen=figuremattpen, bool final=true) { if(f.length == 0) return; real[] width=new real[f.length]; real sum; for(int i=0; i < f.length; ++i) { width[i]=size(f[i]).x; sum += width[i]; } if(sum > pagewidth) warning("toowide","slide too wide on page "+(string) page); else margin=(pagewidth-sum)/(f.length+1); real pos; frame F; for(int i=0; i < f.length; ++i) { real w=0.5*(margin+width[i]); pos += w; add(F,f[i],(pos,0),Fill(figureborder,figuremattpen)); pos += w; } add(F,(0,currentposition.y),align); if (final) { real a=0.5(unit(align).y-1); incrementposition( (0, (tinv*(a*(max(F)-min(F))-itemskip*I*lineskip(p)*pt)).y)); } } void display(frame f, real margin=0, pair align=S, pen p=itempen, pen figuremattpen=figuremattpen, bool final=true) { display(new frame[] {f},margin,align,p,figuremattpen, final); } void display(string[] s, real margin=0, string[] captions=new string[], string caption="", pair align=S, pen p=itempen, pen figuremattpen=figuremattpen, bool final=true) { frame[] f=new frame[s.length]; frame F; for(int i=0; i < s.length; ++i) { f[i]=newframe; label(f[i],s[i]); add(F,f[i],(0,0)); } real y=point(F,S).y; int stop=min(s.length,captions.length); for(int i=0; i < stop; ++i) { if(captions[i] != "") label(f[i],captions[i],point(f[i],S).x+I*y,S); } display(f,margin,align,p,figuremattpen, final); if(caption != "") center(caption,p); } void display(string s, string caption="", pair align=S, pen p=itempen, pen figuremattpen=figuremattpen, bool final=true) { display(new string[] {s},caption,align,p,figuremattpen, final); } void figure(string[] s, string options="", real margin=0, string[] captions=new string[], string caption="", pair align=S, pen p=itempen, pen figuremattpen=figuremattpen, bool final=true) { string[] S; for(int i=0; i < s.length; ++i) { S[i]=graphic(s[i],options); } display(S,margin,captions,caption,align,itempen,figuremattpen,final); } void figure(string s, string options="", string caption="", pair align=S, pen p=itempen, pen figuremattpen=figuremattpen, bool final=true) { figure(new string[] {s},options,caption,align,p,figuremattpen,final); } void multifigure(string[] slist, string options="", string caption="", pair align=S, pen p=itempen, pen figuremattpen=figuremattpen, bool step=itemstep) { if(step) { int lastnode=currentpicture.nodes.length-1; for (int i=0; i 0 || ysize > 0) ? currentpicture.fit(xsize,ysize) : currentpicture.fit(); currentpicture=currentpictureSave; display(f); } string cropcode(string s) { while(substr(s,0,1) == '\n') s=substr(s,1,length(s)); while(substr(s,length(s)-1,1) == '\n') s=substr(s,0,length(s)-1); return s; } void code(bool center=false, string s, pen p=codepen, real indent=0, real skip=codeskip, filltype filltype=NoFill) { remark(center,"{\tt "+verbatim(cropcode(s))+"}",p,indent,skip,filltype); } void filecode(bool center=false, string s, pen p=codepen, real indent=0, real skip=codeskip, filltype filltype=NoFill) { code(center,file(s),p,indent,skip,filltype); } void asyfigure(string s, string options="", string caption="", pair align=S, pen p=codepen, pen figuremattpen=figuremattpen, filltype filltype=NoFill, bool newslide=false) { string a=s+".asy"; asy(nativeformat(),s); s += "."+nativeformat(); if(newslide && !empty()) { newslide(); currentposition=(currentposition.x,0); align=0; } figure(s,options,caption,align,p,figuremattpen); } string asywrite(string s, string preamble="") { static int count=0; string name=outprefix()+"_slide"+(string) count; ++count; file temp=output(name+".asy"); write(temp,preamble); write(temp,s); close(temp); codefile.push(name); return name; } void asycode(bool center=false, string s, string options="", string caption="", string preamble="", pair align=S, pen p=codepen, pen figuremattpen=figuremattpen, real indent=0, real skip=codeskip, filltype filltype=NoFill, bool newslide=false) { code(center,s,p,indent,skip,filltype); asyfigure(asywrite(s,preamble),options,caption,align,p,figuremattpen,filltype, newslide); } void asyfilecode(bool center=false, string s, string options="", string caption="", pair align=S, pen p=codepen, pen figuremattpen=figuremattpen, real indent=0, real skip=codeskip, filltype filltype=NoFill, bool newslide=false) { filecode(center,s+".asy",p,indent,skip,filltype); asyfigure(s,options,caption,align,p,figuremattpen,filltype,newslide); } void item(string s, pen p=itempen, bool step=itemstep) { frame b; label(b,bullet,(0,0),p); real bulletwidth=max(b).x-min(b).x; remark(bullet+"\hangindent"+(string) (bulletwidth/pt)+"pt$\,$"+s,p, -bulletwidth,step=step); } void subitem(string s, pen p=itempen) { remark("\quad -- "+s,p); } void titlepage(string title, string author, string institution="", string date="", string url="", bool newslide=false) { newslide(); currentposition=titlepageposition; center(title,titlepagepen); center(author,authorpen); if(institution != "") center(institution,institutionpen); currentposition -= dateskip; if(date != "") center(date,datepen); currentposition -= urlskip; if(url != "") center("{\tt "+url+"}",urlpen); } // Resolve optional bibtex citations: void bibliographystyle(string name) { settings.twice=true; settings.keepaux=true; texpreamble("\bibliographystyle{"+name+"}"); } void bibliography(string name) { numberpage(); havepagenumber=false; string s=texcolor(backgroundcolor); if(s != "") tex("\definecolor{Background}"+s+"\pagecolor{Background}%"); label("",itempen); tex("\eject\def\refname{\fontsize{"+string(fontsize(titlepen))+"}{"+ string(lineskip(titlepen))+"}\selectfont References}%"); real hmargin,vmargin; if(pdf()) { hmargin=1; vmargin=0; } else { hmargin=1.5; vmargin=1; } string s; if(landscape) { s="{\centering\textheight="+string(pageheight-1inch)+"bp\textwidth="+ string(pagewidth-1.5inches)+"bp"+ "\vsize=\textheight\hsize=\textwidth\linewidth=\hsize"+ "\topmargin="+string(vmargin)+"in\oddsidemargin="+string(hmargin)+"in"; } else s="{\centering\textheight="+string(pageheight-0.5inches)+"bp\textwidth="+ string(pagewidth-0.5inches)+ "bp\hsize=\textwidth\linewidth=\textwidth\vsize=\textheight"+ "\topmargin=0.5in\oddsidemargin=1in"; s += "\evensidemargin=\oddsidemargin\bibliography{"+name+"}\eject}"; tex(s); } exitfcn currentexitfunction=atexit(); void exitfunction() { numberpage(); if(currentexitfunction != null) currentexitfunction(); if(!settings.keep) for(int i=0; i < codefile.length; ++i) { string name=codefile[i]; delete(name+"."+nativeformat()); delete(name+"_.aux"); delete(name+".asy"); } codefile=new string[]; } atexit(exitfunction);