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I
found Quadrics by going through the source for Cone. Wanted to see what it
was doing. The Quadrics methods do seem to support double radii. No other
documentation apparently. Quadrics might offer some insights as to algorithms,
however. All I wanted to do was make a simple single radius cone, and after
looking at all that code, I just wrote my own.
Jack
Jack,
Whew! It took a while to locate that stuff (I'm
still a J3D novice)! Is there any documentation about what's in there, or do
you just have to crawl around in the source for a while? How would you ever
find a thing called "Quadrics"? (not that you could use it, because it's not
public).
Well, now that I found it, I tried to use it via
the various Cone delarators, but there doesn't seem to be a Cone with 2
radii.
-Allan Ash Software Arts, Inc. - the Information Visualization
Company www.infoviz.biz
----- Original Message -----
Sent: Thursday, June 19, 2003 1:35
PM
Subject: Re: [JAVA3D] Cone with 2
radius
That's where it is. You should be able to decipher the calling
sequences from the Cone and Quadrics sources.
Jack
Do you mean com.sun.j3d.utils.geometry?
Otherwise, what is the correct class? ANd what about the constructor in
order to generate the shape.
----- Original Message -----
Sent: Thursday, June 19, 2003 7:41
PM
Subject: Re: [JAVA3D] Cone with 2
radius
BTW, I've never used it, but there's a Cone primitive (with
two radii) in the Quadrics class of the Sun geometry utilities. This is
the class called by Cone.
I'll probably just add a TriangleFanArray
to the top and bottom. You can probably do that temporarily until I
get around to it.
-Allan Ash Software Arts, Inc. - the Information Visualization
Company www.infoviz.biz
----- Original Message -----
Sent: Thursday, June 19, 2003
10:18 AM
Subject: Re: [JAVA3D] Cone with
2 radius
I would appreciate if you deal with
making the frustrum solid.
----- Original Message -----
Sent: Thursday, June 19, 2003
5:12 PM
Subject: Re: [JAVA3D] Cone
with 2 radius
Well, actually I just didn't need it
for what I was doing. I used two of them to build something that
looked like the nozzle of a fire hose for an Information
Visualization demo I was doing (see the Emergencies Demo on my web
site). If I get a chance, maybe I'll add top and bottom caps as an
option.
-Allan Ash Software Arts, Inc. - the Information
Visualization Company www.infoviz.biz
----- Original Message -----
Sent: Thursday, June 19,
2003 3:38 AM
Subject: Re: [JAVA3D] Cone
with 2 radius
That's better, but the shape is not
solid, why that?
----- Original Message -----
Sent: Thursday, June 19,
2003 4:16 AM
Subject: Re: [JAVA3D]
Cone with 2 radius
Oh, sorry. I didn't notice that
your 4th parameter (the number of quadrilaterals needed to
define the cone) was set to 2, making it flat. Try something
like 16 or 32.
Also, the comments lie about that
parameter defaulting to 16. I forgot to test for a null
parameter there.
-Allan Ash
Software Arts, Inc. - the
Information Visualization Company
Sent: Wednesday, June
18, 2003 4:54 PM
Subject: Re: [JAVA3D]
Cone with 2 radius
It worked but It's not 3d
:(
----- Original Message -----
Sent: Wednesday, June
18, 2003 10:17 PM
Subject: Re: [JAVA3D]
Cone with 2 radius
The parameter is a java.awt.Color Color, not a
Color3f.
Try: AttenuatedCone
frustrum=new AttenuatedCone(1.0f,0.5f,1.5f,2,new
Color(0.0f, 1.0f, 0.0f),0.5f);
-Allan Ash
Software Arts, Inc. - the
Information Visualization Company
----- Original Message
-----
Sent: Wednesday,
June 18, 2003 3:56 AM
Subject: Re:
[JAVA3D] Cone with 2 radius
I put the following code in
my class
Create the
Frustrum
AttenuatedCone
frustrum=new AttenuatedCone(1.0f,0.5f,1.5f,2,new
Color3f(0.0f, 1.0f, 0.0f),0.5f);
and i recieved the
following errors
D:\java\Java3d
Project\tests\Hard tests\CallClass.java:24: cannot
resolve symbol
symbol : constructor
AttenuatedCone
(float,float,float,int,javax.vecmath.Color3f,float)
location:
class AttenuatedCone
AttenuatedCone
frustrum=new AttenuatedCone(1.0f,0.5f,1.5f,2,new
Color3f(0.0f, 1.0f,
0.0f),0.5f);
^
1 error
The AttenuatedCone class in
in the same directory with my class
----- Original Message
-----
Sent: Wednesday,
June 18, 2003 6:46 AM
Subject: Re:
[JAVA3D] Cone with 2 radius
When I needed one, I did
this, and called it AttenuatedCone. It's a set of
quadrilaterals arranged around the top and bottom
"hoops" like a barrel. I hope the comments explain
what I was after.
-Allan
----- Original Message
-----
Sent: Tuesday,
June 17, 2003 2:42 PM
Subject:
[JAVA3D] Cone with 2 radius
Is there such a class.
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