difference between 2d and 3d modeling software

[enri]

I'll send you some material. all is part of ddd the digital magazine of the Milan polydesign, studies of researchers and teachers, was freely downloadable from the site, so I can post them quietly, but now the links are no longer there. I send them all I should be there, then if I ever take them off once you have dumped them. documents concern cad interfaces, geometric and parametric modeling techniques.

 

[gil]

text of the thesis

in 2d you draw, in 3d you design.

end of thesis

try to give this to your prof, simple and coincident, but absolutely true.

 

[pirata981]

I'll send you some material. all is part of ddd the digital magazine of the Milan polydesign, studies of researchers and teachers, was freely downloadable from the site, so I can post them quietly, but now the links are no longer there. I send them all I should be there, then if I ever take them off once you have dumped them. documents concern cad interfaces, geometric and parametric modeling techniques.

thanks enri of your fantastic help if you want it can remove them. .
I'll take a look at him now. .

 

[pirata981]

text of the thesis

in 2d you draw, in 3d you design.

end of thesis

try to give this to your prof, simple and coincident, but absolutely true.

I'm totally with you. I'd have to do that. .
Thanks gil..

 

[pirata981]

I don't want to be a disfatist, I assure you, but we're not in my opinion yet. too generic as thesis, very difficult to dequire concretely only on the comparison of cad 3d, the differences are never objective, and if you consider only the method of modeling, type nurbs vs solidi, is too specific, and goes to invade the field of computer science. the text you mentioned is a rhino manual, with some information about the nurbs, which you can also find in "design with rhinoceros" e "rhinoceros guida all'uso" both on google books, in limited version, but enough. you can also start from the info you find online, example on wikipedia, in English because the Italian version has little information.
but I assure you you are out of the way, with all the arguments that you could deal with on the "electronic drawing" this is the most aleatory! I have read so many books about digital architecture, there is a bibliography exterminated, "design in the digital age" , "architecture and digital culture" and the series "gehry digital", "hadid digital" "eisenman digital" in which you have no idea how much material you can find for a tesina on the relationship between design and computer tools, without speaking of the relationships between construction and geometric optimization, your eye generated topics. see if you can pull out something presentable, but in the best of cases it will be a nice list of differences between sw, difficult to do better seen the title, but a tesina is a high thing.

I can no longer view them the two ebooks of google books...ieri sera were available now no!.. why? . . .

 

[PierArg]

I'm totally with you. I'd have to do that. .
Thanks gil..

Hi pirate, I wanted to compliment you
:4425:

The reason is that, by rereading the discussion, I must say that we were all quite critical to your work.
of course not with you but with your prof (who still consider an emeritus unable).

I'd be demoralized and I'd have seen the shattering world collapse.
or, second hypothesis, I would have sent to cag@re all and I would have started to criticize all those who responded to the discussion (as often happens).

instead you were very tolerant (and I must say that we also exaggerated) and above all you did not lose heart trying to bring to the bottom a choice: You can't dress up professor in the middle of the thesis. It's suicide.

Since now the dice is taken, I wish you to do a good job!:finger:

 

[pirata981]

Hi pirate, I wanted to compliment you
:4425:

The reason is that, by rereading the discussion, I must say that we were all quite critical to your work.
of course not with you but with your prof (who still consider an emeritus unable).

I'd be demoralized and I'd have seen the shattering world collapse.
or, second hypothesis, I would have sent to cag@re all and I would have started to criticize all those who responded to the discussion (as often happens).

instead you were very tolerant (and I must say that we also exaggerated) and above all you did not lose heart trying to bring to the bottom a choice: You can't dress up professor in the middle of the thesis. It's suicide.

Since now the dice is taken, I wish you to do a good job!:finger:

thanks pierarg..sto doing everything possible to do a good job also thanks to you.. and especially to enri that is helping me. .

 

[enri]

google does not allow to see short distance the book with non-complete preview, so paid books, wait a bit you will see that you will see all that posted again.

 

[pirata981]

Hello guys are almost at the end of my thesis.. today my prof. asked me to make a difference between mesh and nurbs.. and save the model (three-dimensional made in rhinoceros) in mesh..ciome file I have to do? and what can I write about it?
(I try to attach a rendering of the three-dimensional model). .

 

[Tristan]

if I don't remember badly it is enough to export to dwg to turn the nurbs into mesh, but maybe there is also a specific command of which I do not remember existence

 

[marcof]

today my prof. asked me to make a difference between mesh and nurbs.. and save the model (three-dimensional made in rhinoceros) in mesh files..how do I have to do?

export to stl, which is a mesh format.

 

[pirata981]

export to stl, which is a mesh format.

Okay!..in this way I have the three-dimensional model in mesh..right?

 

[maxopus]

Okay!..in this way I have the three-dimensional model in mesh..right?

Yes, mesh is nothing but discrete models.
in practice the surfaces that make up a geometry, are divided into a network (mesh) consisting of triangles (so plane entities).
in the export stage you should be able to define the level of detail that of course is determined by the values of angle and rope.
in the face of supersonic planes you will not have loss of definition.
If for example you will export a rectangular surface, you will get two rectangular triangles.
If your surface is curved, you will inevitably lose the bending data of the same.

the most used mesh formats are precisely the stl, the vrml and the obj.

 

[pirata981]

Yes, mesh is nothing but discrete models.
in practice the surfaces that make up a geometry, are divided into a network (mesh) consisting of triangles (so plane entities).
in the export stage you should be able to define the level of detail that of course is determined by the values of angle and rope.
in the face of supersonic planes you will not have loss of definition.
If for example you will export a rectangular surface, you will get two rectangular triangles.
If your surface is curved, you will inevitably lose the bending data of the same.

the most used mesh formats are precisely the stl, the vrml and the obj.

thanks maxopus.. .a last thing is possible that the weight of the file in stl format decreased compared to 3dm? . .
for example 3dm and about 50mb while in stl and about 13mb..

 

[maxopus]

thanks maxopus.. .a last thing is possible that the weight of the file in stl format decreased compared to 3dm? . .
for example 3dm and about 50mb while in stl and about 13mb..

You should first check that the level of detail is the same.
Does the 3dm file have the same number of triangles of the stl file obtained?

If the answer is yes, obviously the 3dm file contains non geometric information that is not exported in the stl.

 

[enri]

there is a command in rhino to convert from nurbs to mesh, so inside you have directly the two models.
but I continue to see that your prof. makes queries to the eye, without the slightest knowledge of the purpose of the above. When you write a tesin, you must always have underhand say the goals of research that you intend to do, mesh for what? Why compare them in nurbs, in which area? I think you have to relate the two technologies, indeed geometric descriptions, in a specific area, put on you two other researches of the polimi, on reverse engineering, and on digital prototyping, at least give him a context, if not so to cabbage you do not go anywhere.
Is it wrong or that project the zaha hadid terminal in salerno? but I say, since engineering studies could not have you analyzed the structure, since we are in the presence of complex structures and geometries? mhaa...

 

[pirata981]

there is a command in rhino to convert from nurbs to mesh, so inside you have directly the two models.
but I continue to see that your prof. makes queries to the eye, without the slightest knowledge of the purpose of the above. When you write a tesin, you must always have underhand say the goals of research that you intend to do, mesh for what? Why compare them in nurbs, in which area? I think you have to relate the two technologies, indeed geometric descriptions, in a specific area, put on you two other researches of the polimi, on reverse engineering, and on digital prototyping, at least give him a context, if not so to cabbage you do not go anywhere.
Is it wrong or that project the zaha hadid terminal in salerno? but I say, since engineering studies could not have you analyzed the structure, since we are in the presence of complex structures and geometries? mhaa...

no enri is not wrong that is the terminal of zaha hadid and the reflection that you did so too I... and I tell you more I asked him if I could carry out a structural analysis and an analysis of the stresses, his answer was that at this moment in need of this work..cmq I between a 10 days I have to finish everything. .
can you tell me what kind of command is rhinoceros? . .
Hello and thank you
like my model. .

 

[enri]

I don't charge the other one now, but it's great. I'll send it to you in three parts.
The model can be seen from afar, but it seems good. the command you find between the mesh tools, is the first icon, from nurbs to mesh.