3d wire frame or solid modelling?

comcu · 11th Aug 2006, 01:39 pm

Whats best 3d wire frame or solid modelling?

My problem with solid modelling is that is easy to draw but hard to edit
and i think wire frame is easy to draw and edit but i dont know ho to cap correctly. I can cap with a basic square/rectangle. Its when it comes to more complicated shapes eg a shape with 14 points?

Is there an easy way of doing this?

shinymathew · 21st Aug 2006, 11:26 am

may be you need more understanding of 3d graphics. there are two types of 3d facility available in auto cad. one is solid and the other is surface. wire frame is only the way of representation of the object. autocad creates the object and it shows the object with wire frame. it is not ordinary lines or circles which you can edit. a 3d object is a single piece. like sphere, cylinder or cone or it can be combinations also. auto cad help also contains lot of examples.

comcu · 23rd Aug 2006, 04:09 pm

Sorry, when I say wire frame I meant surfaces.

I do know that an object can be shown wire frame or various type of shading.

My question was which is easier Solid or Surfaces?

Solid as far as i know can only be edited with 'solid editing' will surfaces can be stretched and moved by grabbing points, the way you would a normal line.

I think surfaces are easier until you need to cap them, thats when i struggle to do anything more than a simple square or rectangle cap.

I must be missing a simple way of doing it?

Or is there can you stretch solids, without exploding them?

yedan · 23rd Aug 2006, 04:16 pm

personally i find solid modelling better than surface modelling, agreed the editing is annoying but once you have a good knowledge of what cad is or is not capable of you often find ways around the pulling and pushing of points, what type of shapes and models would you be creating and how often would you need to edit them

comcu · 24th Aug 2006, 11:56 am

at the minute its window and door profiles which arent always the most basic of shapes.

The profiles are allready predrawn all i have to do is make them a polyline and then extrude them to me for these type of shapes surfaces would be the easiest but capping them is a problem

yedan · 24th Aug 2006, 07:43 pm

if you have a 2d profile and extrude it capping should never be a problem as it automatically caps its self, are you making the polyline a region before extruding?

11th Aug 2006, 01:39 pm	#1
comcu Senior Member Using: AutoCAD 2007 Join Date: Jun 2005 Location: Newcastle Upon Tyne Posts: 301	3d wire frame or solid modelling? Whats best 3d wire frame or solid modelling? My problem with solid modelling is that is easy to draw but hard to edit and i think wire frame is easy to draw and edit but i dont know ho to cap correctly. I can cap with a basic square/rectangle. Its when it comes to more complicated shapes eg a shape with 14 points? Is there an easy way of doing this?

21st Aug 2006, 11:26 am	#2
shinymathew Full Member Using: AutoCAD 2006 Join Date: Jul 2005 Location: bangalore, india Posts: 90	may be you need more understanding of 3d graphics. there are two types of 3d facility available in auto cad. one is solid and the other is surface. wire frame is only the way of representation of the object. autocad creates the object and it shows the object with wire frame. it is not ordinary lines or circles which you can edit. a 3d object is a single piece. like sphere, cylinder or cone or it can be combinations also. auto cad help also contains lot of examples.
	"I THINK, THEREFORE I EXIST"

23rd Aug 2006, 04:09 pm	#3
comcu Senior Member Using: AutoCAD 2007 Join Date: Jun 2005 Location: Newcastle Upon Tyne Posts: 301	Sorry, when I say wire frame I meant surfaces. I do know that an object can be shown wire frame or various type of shading. My question was which is easier Solid or Surfaces? Solid as far as i know can only be edited with 'solid editing' will surfaces can be stretched and moved by grabbing points, the way you would a normal line. I think surfaces are easier until you need to cap them, thats when i struggle to do anything more than a simple square or rectangle cap. I must be missing a simple way of doing it? Or is there can you stretch solids, without exploding them?

23rd Aug 2006, 04:16 pm	#4
yedan Super Member Using: AutoCAD 2008 Join Date: Jul 2006 Location: Uk, Suffolk Posts: 509	personally i find solid modelling better than surface modelling, agreed the editing is annoying but once you have a good knowledge of what cad is or is not capable of you often find ways around the pulling and pushing of points, what type of shapes and models would you be creating and how often would you need to edit them

24th Aug 2006, 11:56 am	#5
comcu Senior Member Using: AutoCAD 2007 Join Date: Jun 2005 Location: Newcastle Upon Tyne Posts: 301	at the minute its window and door profiles which arent always the most basic of shapes. The profiles are allready predrawn all i have to do is make them a polyline and then extrude them to me for these type of shapes surfaces would be the easiest but capping them is a problem

24th Aug 2006, 07:43 pm	#6
yedan Super Member Using: AutoCAD 2008 Join Date: Jul 2006 Location: Uk, Suffolk Posts: 509	if you have a 2d profile and extrude it capping should never be a problem as it automatically caps its self, are you making the polyline a region before extruding?