Hi, I confess I got some earlier advice on this issue, but I've never been able to apply it to find a resolution. In the buffer that follows, I define a clipping box: % clipping path path cpath; cpath:=(-5,-5)--(5,-5)--(5,5)--(-5,5)--cycle; cpath:=cpath scaled 1u; A function is created and scaled: % scale and draw graph P:=P scaled u; draw P withcolor blue; The picture is clipped and saved: % clip and save current picture picture pic; clip currentpicture to cpath; pic:=currentpicture; Then it is redrawn later. % redraw line draw pic; Unfortunately, even though this works, mathematicians really want arrows at each end of the graph. Easy enough to do with drawdblarrow P withcolor blue, but the arrows then get clipped. What I really need is to adapt the code below so that my function is clipped to the boundary box, but then redrawn with arrows at each end of it. If anyone can adjust my code to do that, it would be much appreciated, and it would break down a barrier I've faced for years with metapost coding. Note that I've tried some stuff with cutbefore and cutafter with some success. But I should remark that the code below is generated by a perl script and some special coding we've set up to generate these graphics on the fly for student quizzes. This is not a situation where I can tweak an individual plot or two. Rather, our script might generate 100 sets of the code below, all with different parameters. So this magnifies the problem. Again, any ideas would be greatly appreciated. \startbuffer numeric w,h; w=4cm;h=4cm; % inititialize numerator and denominator of the slope of f numeric a; a=2; % initialize choice of function numeric choice; choice=1; % initialize type of reflection numeric reflect; reflect=2; % define linear function f vardef f(expr x)= a*x*x enddef; % define linear function g vardef g(expr x)= a*abs(x) enddef; % define linear function h vardef h(expr x)= a*x*(x-2)*(x+2)/2 enddef; % define paths for functions f, g, and h, respectively path P, F, G, H; F:=(-5,f(-5)); for x=-5 step .1 until 5: F:=F--(x,f(x)); endfor; G:=(-5,g(-5)); for x=-5 step .1 until 5: G:=G--(x,g(x)); endfor; H:=(-5,h(-5)); for x=-5 step .1 until 5: H:=H--(x,h(x)); endfor; % choose the function to use, f, g, or h if (choice=1): P:=F; elseif (choice=2): P:=G; else: P:=H; fi; % choose the type of reflection if (reflect=1): P:=P; elseif (reflect=2): P:=P reflectedabout((0,0),(1,1)); elseif (reflect=3): P:=P reflectedabout((0,0),(1,-1)); else: P:=P reflectedabout((-1,0),(1,0)); fi; % initialize scale numeric u; 10u=w; % scale and draw graph P:=P scaled u; draw P withcolor blue; % clipping path path cpath; cpath:=(-5,-5)--(5,-5)--(5,5)--(-5,5)--cycle; cpath:=cpath scaled 1u; % clip and save current picture picture pic; clip currentpicture to cpath; pic:=currentpicture; % erase currentpicture currentpicture:=nullpicture; % draw grid for k=-5u step 1u until 5u: draw (-5u,k)--(5u,k) withcolor mygridcolor; draw (k,-5u)--(k,5u) withcolor mygridcolor; endfor; % draw axes drawarrow (-5u,0)--(5u,0); drawarrow (0,-5u)--(0,5u); % label axes label.rt(btex $x$ etex, (5.2u,0)); label.top(btex $y$ etex, (0,5.2.u)); label.bot(btex $5$ etex, (5u,0)); label.lft(btex $5$ etex, (0,5u)); % redraw line draw pic; % draw vertical line test numeric xvert; if (reflect=3): xvert:=-1; else: xvert:=1; fi; % vertical line path vert; vert:=(xvert,-5)--(xvert,5); vert:=vert scaled u; pickup pencircle scaled 2pt; drawdblarrow vert withcolor red; pickup defaultpen; \stopbuffer
On 6/25/06, David Arnold wrote:
Unfortunately, even though this works, mathematicians really want arrows at each end of the graph. Easy enough to do with drawdblarrow P withcolor blue, but the arrows then get clipped. What I really need is to adapt the code below so that my function is clipped to the boundary box, but then redrawn with arrows at each end of it. If anyone can adjust my code to do that, it would be much appreciated, and it would break down a barrier I've faced for years with metapost coding.
Just for clarification: What would you do with a "mexican hat" (x^4-4*x^2+4, y between 0 and 3) it if would cut the boundary 4 times? Use 4 arrows or just the two at the end? Mojca
Mojca, Good question of course. However, I am using this for intermediate algebra students so the graphs will be lines, absolute value, quadratics, polynomials, rational functions, radical functions, exponential and logarithmic functions. In each case, I would adjust the window to see all important behavior of the function, extrema, etc. So, for example, if I needed to draw y=12-x^2, I would not clip this to the boundary (-10,-10)--(10,-10)-- (10,10)--(-10,10)--cycle, because that would chop off the top of the parabola, and if I added arrows, it would look like I had two branches. Rather, I might clip y=12-x^2 to the boundary (-10,-20)-- (10,-20)--(10,20)--(-10,20)--cycle in order to see the "turning point" of the parabola. That is, I would choose a boundary that would present arrow heads at each end of the curve. In the case of rational functions, I would clip each branch separately. I hope this answers the question. Thanks. On Jun 25, 2006, at 12:37 PM, Mojca Miklavec wrote:
On 6/25/06, David Arnold wrote:
Unfortunately, even though this works, mathematicians really want arrows at each end of the graph. Easy enough to do with drawdblarrow P withcolor blue, but the arrows then get clipped. What I really need is to adapt the code below so that my function is clipped to the boundary box, but then redrawn with arrows at each end of it. If anyone can adjust my code to do that, it would be much appreciated, and it would break down a barrier I've faced for years with metapost coding.
Just for clarification: What would you do with a "mexican hat" (x^4-4*x^2+4, y between 0 and 3) it if would cut the boundary 4 times? Use 4 arrows or just the two at the end?
Mojca _______________________________________________ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
On 6/25/06, David Arnold wrote:
That is, I would choose a boundary that would present arrow heads at each end of the curve. In the case of rational functions, I would clip each branch separately.
I hope this answers the question.
So that necessary means an arrowhead each time when a function crosses the boundary if I understand correctly (i.e. 1/x would have 4 arrowheads)? Mojca
Not necessary. Let me add comments to my code in places where I need help. My comments are marked with [DA 6/25]. \startbuffer numeric w,h; w=4cm;h=4cm; % inititialize numerator and denominator of the slope of f numeric a; a=1.5; % initialize choice of function numeric choice; choice=2; %<=====[DA 6/25]Test to see if code works for 1, 2, or 3. % initialize type of reflection numeric reflect; reflect=3; %<======[DA 6/25]Test to see if code works for 1, 2, 3, or 4 % define linear function f vardef f(expr x)= a*x*x enddef; % define linear function g vardef g(expr x)= a*abs(x) enddef; % define linear function h vardef h(expr x)= a*x*(x-2)*(x+2)/2 enddef; % define paths for functions f, g, and h, respectively path P, F, G, H; F:=(-5,f(-5)); for x=-5 step .1 until 5: F:=F--(x,f(x)); endfor; G:=(-5,g(-5)); for x=-5 step .1 until 5: G:=G--(x,g(x)); endfor; H:=(-5,h(-5)); for x=-5 step .1 until 5: H:=H--(x,h(x)); endfor; % choose the function to use, f, g, or h if (choice=1): P:=F; elseif (choice=2): P:=G; else: P:=H; fi; % choose the type of reflection if (reflect=1): P:=P; elseif (reflect=2): P:=P reflectedabout((0,0),(1,1)); elseif (reflect=3): P:=P reflectedabout((0,0),(1,-1)); else: P:=P reflectedabout((-1,0),(1,0)); fi; % initialize scale numeric u; 10u=w; % scale and draw graph P:=P scaled u; draw P withcolor blue; % clipping path path cpath; cpath:=(-5,-5)--(5,-5)--(5,5)--(-5,5)--cycle; cpath:=cpath scaled 1u; %[DA 6/25]<========Replace this code from here to next mark with new clipping routine % clip and save current picture picture pic; clip currentpicture to cpath; pic:=currentpicture; % erase currentpicture currentpicture:=nullpicture; %[DA 6/25]<========End of code to replace with new clipping routine %[DA 6/25] Put new clipping routine here. It should return P clipped to clipping path %[DA 6/25] for all choices of "choice" and "reflect: % draw grid for k=-5u step 1u until 5u: draw (-5u,k)--(5u,k) withcolor mygridcolor; draw (k,-5u)--(k,5u) withcolor mygridcolor; endfor; % draw axes drawarrow (-5u,0)--(5u,0); drawarrow (0,-5u)--(0,5u); % label axes label.rt(btex $x$ etex, (5.2u,0)); label.top(btex $y$ etex, (0,5.2.u)); label.bot(btex $5$ etex, (5u,0)); label.lft(btex $5$ etex, (0,5u)); %[DA 6/25]<==========Replace with "draw pic" command with "drawdblarrow P" % redraw line draw pic; \stopbuffer \startlinecorrection[blank] \midaligned{\processMPbuffer} \stoplinecorrection On Jun 25, 2006, at 1:14 PM, Mojca Miklavec wrote:
On 6/25/06, David Arnold wrote:
That is, I would choose a boundary that would present arrow heads at each end of the curve. In the case of rational functions, I would clip each branch separately.
I hope this answers the question.
So that necessary means an arrowhead each time when a function crosses the boundary if I understand correctly (i.e. 1/x would have 4 arrowheads)?
Mojca _______________________________________________ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
David Arnold wrote:
Hi,
I confess I got some earlier advice on this issue, but I've never been able to apply it to find a resolution. In the buffer that follows, I define a clipping box:
% clipping path path cpath; cpath:=(-5,-5)--(5,-5)--(5,5)--(-5,5)--cycle; cpath:=cpath scaled 1u;
A function is created and scaled:
% scale and draw graph P:=P scaled u; draw P withcolor blue;
The picture is clipped and saved:
% clip and save current picture picture pic; clip currentpicture to cpath; pic:=currentpicture;
Then it is redrawn later.
% redraw line draw pic;
Unfortunately, even though this works, mathematicians really want arrows at each end of the graph. Easy enough to do with drawdblarrow P withcolor blue, but the arrows then get clipped. What I really need is to adapt the code below so that my function is clipped to the boundary box, but then redrawn with arrows at each end of it. If anyone can adjust my code to do that, it would be much appreciated, and it would break down a barrier I've faced for years with metapost coding.
Note that I've tried some stuff with cutbefore and cutafter with some success. But I should remark that the code below is generated by a perl script and some special coding we've set up to generate these graphics on the fly for student quizzes. This is not a situation where I can tweak an individual plot or two. Rather, our script might generate 100 sets of the code below, all with different parameters. So this magnifies the problem.
as you sat, the basics are in: P := (P cutbefore cpath) ; P := (P cutafter cpath) ; drawdblarrow P withcolor green; it should not be too hard for a mathematician to make sure that this works ok; i think that as long as one makes sure that the directions are right (do a reverse P if needed) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On 6/25/06, David Arnold wrote:
Hi,
I confess I got some earlier advice on this issue, but I've never been able to apply it to find a resolution. In the buffer that follows, I define a clipping box:
/.../
Unfortunately, even though this works, mathematicians really want arrows at each end of the graph. Easy enough to do with drawdblarrow P withcolor blue, but the arrows then get clipped. What I really need is to adapt the code below so that my function is clipped to the boundary box, but then redrawn with arrows at each end of it. If anyone can adjust my code to do that, it would be much appreciated, and it would break down a barrier I've faced for years with metapost coding.
Note that I've tried some stuff with cutbefore and cutafter with some success. But I should remark that the code below is generated by a perl script and some special coding we've set up to generate these graphics on the fly for student quizzes. This is not a situation where I can tweak an individual plot or two. Rather, our script might generate 100 sets of the code below, all with different parameters. So this magnifies the problem.
Again, any ideas would be greatly appreciated.
Can you check the attached file? I changed a bit more of the code than you asked for, but I hope that that's not the problem. Only by using "cutbefore/cutafter" you would have to consider too much cases of curve orientation and I avoided the usace of clipping completely. It has some minor problems when drawing a pole of odd orders: this part of the code elseif isInside and (not fallsInside(mytransform((x,ff(x))),cbox)): should be fixed a bit for such cases, so please let me know if you need help for the fix. The nice part about metapost is that it's a programming language, so you should write your code in such a way that you never code the same number more than once - you should avoid hardcoding the numbers (5 appears quite often in your code) as often as possible. Please let me know if you need some explanation - I didn't comment much in the source itself. Mojca
Mojca Miklavec wrote:
On 6/25/06, David Arnold wrote:
Hi,
I confess I got some earlier advice on this issue, but I've never been able to apply it to find a resolution. In the buffer that follows, I define a clipping box:
/.../
Unfortunately, even though this works, mathematicians really want arrows at each end of the graph. Easy enough to do with drawdblarrow P withcolor blue, but the arrows then get clipped. What I really need is to adapt the code below so that my function is clipped to the boundary box, but then redrawn with arrows at each end of it. If anyone can adjust my code to do that, it would be much appreciated, and it would break down a barrier I've faced for years with metapost coding.
Note that I've tried some stuff with cutbefore and cutafter with some success. But I should remark that the code below is generated by a perl script and some special coding we've set up to generate these graphics on the fly for student quizzes. This is not a situation where I can tweak an individual plot or two. Rather, our script might generate 100 sets of the code below, all with different parameters. So this magnifies the problem.
Again, any ideas would be greatly appreciated.
Can you check the attached file? I changed a bit more of the code than you asked for, but I hope that that's not the problem. Only by using "cutbefore/cutafter" you would have to consider too much cases of curve orientation and I avoided the usace of clipping completely. It has some minor problems when drawing a pole of odd orders: this part of the code elseif isInside and (not fallsInside(mytransform((x,ff(x))),cbox)): should be fixed a bit for such cases, so please let me know if you need help for the fix.
The nice part about metapost is that it's a programming language, so you should write your code in such a way that you never code the same number more than once - you should avoid hardcoding the numbers (5 appears quite often in your code) as often as possible.
Please let me know if you need some explanation - I didn't comment much in the source itself. impressive
btw, no need for an if in: vardef fallsInside(expr apoint, cbox) = (xpart apoint >= xpart llcorner cbox) and (xpart apoint <= xpart urcorner cbox) and (ypart apoint >= ypart llcorner cbox) and (ypart apoint <= ypart urcorner cbox) enddef; ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
Mojca, Doesn't compile at my end: This is MetaPost, Version 0.901 (Web2C 7.5.5) (/usr/local/teTeX/share/texmf.local/web2c/natural.tcx) (dblarrow-mpgraph.mp [1] ! Redundant equation. <to be read again> ; l.272 10u=w; ? On Jun 26, 2006, at 2:39 AM, Mojca Miklavec wrote:
On 6/25/06, David Arnold wrote:
Hi,
I confess I got some earlier advice on this issue, but I've never been able to apply it to find a resolution. In the buffer that follows, I define a clipping box:
/.../
Unfortunately, even though this works, mathematicians really want arrows at each end of the graph. Easy enough to do with drawdblarrow P withcolor blue, but the arrows then get clipped. What I really need is to adapt the code below so that my function is clipped to the boundary box, but then redrawn with arrows at each end of it. If anyone can adjust my code to do that, it would be much appreciated, and it would break down a barrier I've faced for years with metapost coding.
Note that I've tried some stuff with cutbefore and cutafter with some success. But I should remark that the code below is generated by a perl script and some special coding we've set up to generate these graphics on the fly for student quizzes. This is not a situation where I can tweak an individual plot or two. Rather, our script might generate 100 sets of the code below, all with different parameters. So this magnifies the problem.
Again, any ideas would be greatly appreciated.
Can you check the attached file? I changed a bit more of the code than you asked for, but I hope that that's not the problem. Only by using "cutbefore/cutafter" you would have to consider too much cases of curve orientation and I avoided the usace of clipping completely. It has some minor problems when drawing a pole of odd orders: this part of the code elseif isInside and (not fallsInside(mytransform((x,ff(x))),cbox)): should be fixed a bit for such cases, so please let me know if you need help for the fix.
The nice part about metapost is that it's a programming language, so you should write your code in such a way that you never code the same number more than once - you should avoid hardcoding the numbers (5 appears quite often in your code) as often as possible.
Please let me know if you need some explanation - I didn't comment much in the source itself.
Mojca
_______________________________________________ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
On 6/26/06, David Arnold wrote:
Mojca,
Doesn't compile at my end:
This is MetaPost, Version 0.901 (Web2C 7.5.5) (/usr/local/teTeX/share/texmf.local/web2c/natural.tcx) (dblarrow-mpgraph.mp [1] ! Redundant equation. <to be read again> ; l.272 10u=w;
Do you use some other high-level command to process the MP code? (Two graphics may not be processed in the same file unless you add an assignment instead.) What happens if you write u:=w/10? To Hans: thanks for the hint! (Slowly starting to believe that the code might indeed reach 4 lines ;) Mojca
Mojca Miklavec wrote:
On 6/26/06, David Arnold wrote:
Mojca,
Doesn't compile at my end:
This is MetaPost, Version 0.901 (Web2C 7.5.5) (/usr/local/teTeX/share/texmf.local/web2c/natural.tcx) (dblarrow-mpgraph.mp [1] ! Redundant equation. <to be read again> ; l.272 10u=w;
Do you use some other high-level command to process the MP code? (Two graphics may not be processed in the same file unless you add an assignment instead.) What happens if you write u:=w/10?
To Hans: thanks for the hint! (Slowly starting to believe that the code might indeed reach 4 lines ;)
another one: vardef mytransform(expr pathorpicture) = pathorpicture if reflect=2: reflectedabout((0,0),(1,1)) elseif reflect=3: reflectedabout((0,0),(1,-1)) elseif reflect=4: reflectedabout((-1,0),(1,0)) fi enddef; -) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
On 6/27/06, Hans Hagen wrote:
Mojca Miklavec wrote:
To Hans: thanks for the hint! (Slowly starting to believe that the code might indeed reach 4 lines ;)
another one:
vardef mytransform(expr pathorpicture) = pathorpicture if reflect=2: reflectedabout((0,0),(1,1)) elseif reflect=3: reflectedabout((0,0),(1,-1)) elseif reflect=4: reflectedabout((-1,0),(1,0)) fi enddef;
-)
What a waste of space ;) ! vardef mytransform(expr pathorpicture) = pathorpicture if reflect > 1: reflectedabout( if reflect=2: (0,0),(1,1) elseif reflect=3: (0,0),(1,-1) elseif reflect=4: (-1,0),(1,0) fi) fi enddef; (Slowly starting to believe that MP might become as horrible & unreadable as perl ;) Mojca
Mojca Miklavec wrote:
On 6/27/06, Hans Hagen wrote:
Mojca Miklavec wrote:
To Hans: thanks for the hint! (Slowly starting to believe that the code might indeed reach 4 lines ;)
another one:
vardef mytransform(expr pathorpicture) = pathorpicture if reflect=2: reflectedabout((0,0),(1,1)) elseif reflect=3: reflectedabout((0,0),(1,-1)) elseif reflect=4: reflectedabout((-1,0),(1,0)) fi enddef;
-)
What a waste of space ;) !
vardef mytransform(expr pathorpicture) = pathorpicture if reflect > 1: reflectedabout( if reflect=2: (0,0),(1,1) elseif reflect=3: (0,0),(1,-1) elseif reflect=4: (-1,0),(1,0) fi) fi enddef;
(Slowly starting to believe that MP might become as horrible & unreadable as perl ;)
that's why i seldom go that far but the if inside an expresion is ok for me (many languages provide that) of course a clean solution is: transform _mt_[] ; reflect := 1 ; _mt_[1] := identity ; _mt_[2] := identity reflectedabout(( 0,0),(1, 1)) ; _mt_[3] := identity reflectedabout(( 0,0),(1,-1)) ; _mt_[4] := identity reflectedabout((-1,0),(1, 0)) ; vardef mytransform(expr p) = p transformed _mt_[reflect] enddef; % one line -) draw mytransform(fullcircle scaled 10cm) ; draw fullcircle scaled 4cm transformed _mt_[reflect] ; Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
I hope I get to see the final file. Nice work. On Jun 26, 2006, at 4:04 PM, Hans Hagen wrote:
Mojca Miklavec wrote:
On 6/27/06, Hans Hagen wrote:
Mojca Miklavec wrote:
To Hans: thanks for the hint! (Slowly starting to believe that the code might indeed reach 4 lines ;)
another one:
vardef mytransform(expr pathorpicture) = pathorpicture if reflect=2: reflectedabout((0,0),(1,1)) elseif reflect=3: reflectedabout((0,0),(1,-1)) elseif reflect=4: reflectedabout((-1,0),(1,0)) fi enddef;
-)
What a waste of space ;) !
vardef mytransform(expr pathorpicture) = pathorpicture if reflect > 1: reflectedabout( if reflect=2: (0,0),(1,1) elseif reflect=3: (0,0),(1,-1) elseif reflect=4: (-1,0),(1,0) fi) fi enddef;
(Slowly starting to believe that MP might become as horrible & unreadable as perl ;)
that's why i seldom go that far
but the if inside an expresion is ok for me (many languages provide that)
of course a clean solution is:
transform _mt_[] ; reflect := 1 ;
_mt_[1] := identity ; _mt_[2] := identity reflectedabout(( 0,0),(1, 1)) ; _mt_[3] := identity reflectedabout(( 0,0),(1,-1)) ; _mt_[4] := identity reflectedabout((-1,0),(1, 0)) ;
vardef mytransform(expr p) = p transformed _mt_[reflect] enddef; % one line -)
draw mytransform(fullcircle scaled 10cm) ;
draw fullcircle scaled 4cm transformed _mt_[reflect] ;
Hans
----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
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On 6/27/06, David Arnold wrote:
TeXExec 5.4.3 - ConTeXt / PRAGMA ADE 1997-2005 This is pdfeTeX, Version 3.141592-1.30.4-2.2 (Web2C 7.5.5) ConTeXt ver: 2006.03.20 10:19 fmt: 2006.3.21
I hope I get to see the final file. Nice work.
You can see it here, but the only changes to your graphics can be seen in the source, not in the final PDF: http://pub.mojca.org/tex/temp/dblarrow.pdf I don't know what exactly has changed in ConTeXt that could influence that specific behaviour (I guess that the graphics are simply processed one after another instead of processing them separately), but indeed I was able to reproduce the behaviour on contextgarden (I'll try to write to Patrick once more - the garden still uses the perl version and doesn't have all the variables set priperly, but he seems to be extremely busy). The (temporal) remedy for that is to use u:=w/10; instead as I said last time, but then again the labels won't work as they should. There might a remedy for that as well, but it's not worth investigating it. You probably have heard that trillions of times already, but you *really*, *really* and again *really* should do two things before trying to proceed: - update your ConTeXt (just unzip the cont-tmf.zip over the old files; later you'll be able to do that with ctxtools --update). Some *enormous* changes were introduced to metafun graphics handling in April and May. - call ConTeXt with "texmfstart texexec". See the folder texmf-local/scripts/stubs/unix. You should use it's content as the source of executables. texexec --version should return you TeXExec | version 6.2.0 - 1997-2006 - PRAGMA ADE/POD Mojca
Mojca Miklavec wrote:
On 6/27/06, David Arnold wrote:
TeXExec 5.4.3 - ConTeXt / PRAGMA ADE 1997-2005 This is pdfeTeX, Version 3.141592-1.30.4-2.2 (Web2C 7.5.5) ConTeXt ver: 2006.03.20 10:19 fmt: 2006.3.21
I hope I get to see the final file. Nice work.
You can see it here, but the only changes to your graphics can be seen in the source, not in the final PDF: http://pub.mojca.org/tex/temp/dblarrow.pdf
I don't know what exactly has changed in ConTeXt that could influence that specific behaviour (I guess that the graphics are simply processed one after another instead of processing them separately), but indeed I was able to reproduce the behaviour on contextgarden (I'll try to write to Patrick once more - the garden still uses the perl version and doesn't have all the variables set priperly, but he seems to be extremely busy).
when you do runtime processing, each graphic is on its own, otherwise you can indeed run into redundant equations, just change = into := then or do a proper allocation of local vars (numeric u ; etc) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
I just ran: texexec dblarrow.tex
tmp $ texexec dblarrow.tex
TeXExec 5.4.3 - ConTeXt / PRAGMA ADE 1997-2005
fixing engine variable : pdfetex
executable : pdfetex
format : cont-en
inputfile : dblarrow
output : standard
interface : en
current mode : none
TeX run : 1
This is pdfeTeX, Version 3.141592-1.30.4-2.2 (Web2C 7.5.5)
(/usr/local/teTeX/share/texmf.local/web2c/natural.tcx)
entering extended mode
(./dblarrow.tex
ConTeXt ver: 2006.03.20 10:19 fmt: 2006.3.21 int: english mes:
english
language : language en is active
texnansi:tex nansi->3->2:3 de->ec:ec->4->2:3 fr->texnansi:texnansi->5->2:3 fr- ec:ec->6->2:3 es->ec:ec->7->2:3 pt->texnansi:texnansi->8->2:3 pt->ec:ec->9->2:3 it- texnansi :texnansi->10->2:3 it->ec:ec->11->2:3 nl->texnansi:texnansi->12->2:3 nl->ec:ec- 13->2:3 cz->il2:il2->14->2:3 cz->ec:ec->15->2:3 sk->il2:il2->16- 2:3 sk->ec:ec ->17->2:3 pl->pl0:pl0->18->2:3 pl->ec:ec->19->2:3 pl->qx:qx->20->2:3 loaded specials : tex,postscript,rokicki loaded system : dblarrow.top loaded (./dblarrow.top) systems : system commands are disabled
color : system rgb is global activated (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) (./dblarrow.tuo) systems : begin file dblarrow at line 5 [MP as EPS ./dblarrow-mpgraph.1] [MP as EPS ./dblarrow-mpgraph.2] [MP as EPS ./dblarrow-mpgraph.3] [MP as EPS ./dblarrow-mpgraph.4] fonts : resetting map file list fonts : using map file: original-base fonts : using map file: ec-public-lm fonts : using map file: ec-base fonts : using map file: 8r-base fonts : using map file: t5-base fonts : using map file: original-ams-base fonts : using map file: original-ams-euler fonts : using map file: original-public-lm [1.1] systems : end file dblarrow at line 187 [flush and process dblarrow-mpgraph.mp afterwards] ) Output written on dblarrow.dvi (1 page, 916 bytes). Transcript written on dblarrow.log.
return code : 0 run time : 0 seconds generating graphics : metaposting dblarrow-mpgraph.mp TeXExec 5.4.3 - ConTeXt / PRAGMA ADE 1997-2005 metapost : dblarrow-mpgraph format : metafun This is MetaPost, Version 0.901 (Web2C 7.5.5) (/usr/local/teTeX/share/texmf.local/web2c/natural.tcx) (dblarrow-mpgraph.mp [1] ! Redundant equation. <to be read again> ; l.272 10u=w; ? On Jun 26, 2006, at 1:35 PM, Mojca Miklavec wrote:
On 6/26/06, David Arnold wrote:
Mojca,
Doesn't compile at my end:
This is MetaPost, Version 0.901 (Web2C 7.5.5) (/usr/local/teTeX/share/texmf.local/web2c/natural.tcx) (dblarrow-mpgraph.mp [1] ! Redundant equation. <to be read again> ; l.272 10u=w;
Do you use some other high-level command to process the MP code? (Two graphics may not be processed in the same file unless you add an assignment instead.) What happens if you write u:=w/10?
To Hans: thanks for the hint! (Slowly starting to believe that the code might indeed reach 4 lines ;)
Mojca _______________________________________________ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
participants (3)
-
David Arnold -
Hans Hagen -
Mojca Miklavec