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ICRA, finally.. (fighting with jfig, eps, gs, etc.)

Tue, 14/12/2004 - 12:07 — dae

ICRA is almost finished and so is the deadline. We still doing a last proofreading. However, there are a lots of problem in preparing a PDF. First, IEEE requires that all font is embedded. There are some problem in my Distiller, I can not make the .joboptions file from IEEE to work with my Distiller. It keep s saying that the font “Times-Roman” can not be found in the system. I change to GSView to convert my ps to pdf but still, the result pdf does not have “Times-Roman” embedded in. Okey, the problem might be my machine but no other machine in our lab has MikTex or GSView. I change to linux and use ps2pdf to convert. The correct option is

ps2pdf -dCompatibilityLevel=1.3 -dMAxSubsetPct=100 -dSubsetFonts=true -dEmbedAllFonts=true -sPAPERSIZE=a4 DRAFT1.ps

However, we still have more problem. JFIG has some bug when rendering the EPS. (Or that is what I think)

Long time no see

Tue, 14/12/2004 - 12:07 — dae

Yeah, miss me? huh? Long time since last entry. I went to Japan for IROS presentation. (that’s suck, though.) Anyway, I’m back, fully realised that the previous entry is still under construction. Today, our master posted a post-it with TO-DO on our machine. So, we have lots of thing to do in official. Hope that I do not fail any of them.

Just finished “the Geometry of Grasping” of Markenscofff, Ni and Papadimitriou. That’s hard paper for me. Parts of it still a mystery for me. I am also supposed to write a little review for it. but I am too lazy right now. (Mr. Fu is playing CS:Source just 2 meter from my place. Lots of eager to join him… and we still addicted to GunBound). I am planning to read the Red/Blue intersection just after this sentence. So, see ya later.

Three days remains for ICRA deadline

Tue, 14/12/2004 - 12:06 — dae

Ah, lots had happen around weekends. New idea came, and gone. Some interesting got proven, and later disproved. Work of ICRA still not completely done. Even right now, some theories still need rechecking. The implementation still not complete, Fu and Peam still working on the implementation. I, myself, do not finish the paper yet, even the draft one. There is a little hope for ICRA right now. But, as our teacher said, it is not the deadline yet, we have to keep working. Of course, gunbound took some time away from us, as usual, but we managed to play less of it. A little bit of victory?

Today, someone set up a dhcp and it starts to leasing out some, definitely unusable, IPs. Most machines in our lab got that wrong IPs. We can not find the source of that DHCP message, we just know the MAC address of that devil dhcp server. Anyhow, the most dirty way to solve this problem is to fix my IP to the old one before I got that malicious IP. Hope that that machine be found very soon.

The Proof of Parallel Grasp

Tue, 14/12/2004 - 12:05 — dae

Today and yesterday are days for proving. I and N~ Peam trying to proof the necessary and sufficient condition for regraspable between two parallel grasps. The process is quite fun, working with Peam and Fu on this subject really make research much more fun. Maybe that is what they called “atmosphere of research”. However, if a proof does not come out, the world much be worse.

Fun thing is that, the proof is quite tricky. We get confused very very time and , yes, GunBound really took time away from us. Many pitfall awaited us and, sometime, got us. luckily we managed to escape.

Aj. Attawith has lots of idea about “dual representation” of our problem. Many new horizons seems available to us. Dark shroud still remain but some light does shed upon. Man, what the hell I am talking about.

Trip to Sendai, mathematica for linear programming

Tue, 14/12/2004 - 12:04 — dae

Just talk with Ai kong (burin) about staying at his apartment, my dear fat ขี้งอน old friend. I will stay with him on sat. 2/9 to wed. 6/9. Ai Kong, of course, request a sweet from sendai. Here is the page ขนม. Click on 萩の月 (hagi no tsuki) and that’s it. The pictures look very delicious. Ah, my mind already fixed on eating at Japan, what a nice place for eating.

Today, found some interesting idea about parallel grasp of Fu’s work. Trying to eliminate the need of calculating a feasible region. Hope that will work. Discussed with Peam about the theory and we already have some draft (but almost complete) of our proof. In the evening, Fu’s program return something that seems to contradict with the theory but we use Mathematica to re-check the code and we found some bug in Fu’s code. Trying to solve it, maybe tomorrow.

NOTE: Use mathematica to check feasible region of a linear programming.
1: set the objective by

objA[x_, y_, z_] := x + y + z

2: input constraint by

constraintsA = {-x ≤ 0, x ≤ 312.27, -y ≤ 0, y ≤ 506.085, -z ≤ 0, z ≤ 260, etc, etc, etc....}

3: solve the linear programming by

constrainedMax[objA[x, y, z], constraintsA, {x, y, z}]
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