[osg-users] Utility functions
Hello forum, Are there any utility functions for drawing spheres, planes , boxes ,cubes etc. within OSG's framework? Sajjad ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Utility functions
On Wed, Sep 10, 2008 at 8:16 AM, ami guru [EMAIL PROTECTED] wrote:
Hello forum,
Are there any utility functions for drawing spheres, planes , boxes ,cubes
etc. within OSG's framework?
Sajjad
___
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To draw regular shapes in OSG, refer to classes derived to
'osg::Shape'. Following is a segment from a program while
experimenting with those classes.
Also to find out if a particular shape is implemented in OSG, I
usually refer to HTML documentation (Generated using Doxygen). Just
refer to all the classes.
--
osg::ref_ptrosg::MatrixTransform draw_shape(std::string shape, float x)
{
/* Geode containing a shape. */
osg::ref_ptrosg::Geode geode = new osg::Geode;
osg::ref_ptrosg::ShapeDrawable sd;
if(shape == box) {
osg::ref_ptrosg::Box box = new osg::Box(osg::Vec3f(), 5.0);
sd = new osg::ShapeDrawable(box.get());
geode-addDrawable(sd.get());
} else if(shape == cylinder) {
osg::ref_ptrosg::Cylinder cylinder = new
osg::Cylinder(osg::Vec3f(), 2.0, 5.0);
sd = new osg::ShapeDrawable(cylinder.get());
geode-addDrawable(sd.get());
} else if(shape == capsule) {
osg::ref_ptrosg::Capsule capsule = new
osg::Capsule(osg::Vec3f(), 2.0, 5.0);
sd = new osg::ShapeDrawable(capsule.get());
geode-addDrawable(sd.get());
} else if(shape == cone) {
osg::ref_ptrosg::Cone cone = new osg::Cone(osg::Vec3f(), 2.0,
5.0);
sd = new osg::ShapeDrawable(cone.get());
geode-addDrawable(sd.get());
} else if(shape == sphere) {
osg::ref_ptrosg::Sphere sphere = new
osg::Sphere(osg::Vec3f(), 2.0);
sd = new osg::ShapeDrawable(sphere.get());
geode-addDrawable(sd.get());
}
/* Use matrix tranform to place the object at desired position
* from origin. */
osg::ref_ptrosg::MatrixTransform mtleft = new osg::MatrixTransform;
mtleft-setDataVariance(osg::Object::STATIC);
osg::Matrix m;
m.makeTranslate(x, 0.0, 0.0);
mtleft-setMatrix(m);
/* Add geode to matrix transform object. */
mtleft-addChild(geode.get());
return mtleft.get();
}
--
Vijay Patil
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Re: [osg-users] Utility functions
Hello all,
But how to take texture to this shapes?For example,I draw a cylinder by
following code:
---
osg::ref_ptr osg::Cylinder cylinder = new
osg::Cylinder(osg::Vec3f(), 2.0, 5.0);
sd = new osg::ShapeDrawable(cylinder.get());
geode- addDrawable(sd.get());
---
How I take texture to only the top face not all faces?
Best Regards.
2008-09-10
xuyuanzhen1
发件人： Vijay Patil
发送时间： 2008-09-10 12:44:43
收件人： OpenSceneGraph Users
抄送：
主题： Re: [osg-users] Utility functions
On Wed, Sep 10, 2008 at 8:16 AM, ami guru [EMAIL PROTECTED] wrote:
Hello forum,
Are there any utility functions for drawing spheres, planes , boxes ,cubes
etc. within OSG's framework?
Sajjad
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
To draw regular shapes in OSG, refer to classes derived to
'osg::Shape'. Following is a segment from a program while
experimenting with those classes.
Also to find out if a particular shape is implemented in OSG, I
usually refer to HTML documentation (Generated using Doxygen). Just
refer to all the classes.
--
osg::ref_ptr osg::MatrixTransform draw_shape(std::string shape, float x)
{
/* Geode containing a shape. */
osg::ref_ptr osg::Geode geode = new osg::Geode;
osg::ref_ptr osg::ShapeDrawable sd;
if(shape == box) {
osg::ref_ptr osg::Box box = new osg::Box(osg::Vec3f(), 5.0);
sd = new osg::ShapeDrawable(box.get());
geode- addDrawable(sd.get());
} else if(shape == cylinder) {
osg::ref_ptr osg::Cylinder cylinder = new
osg::Cylinder(osg::Vec3f(), 2.0, 5.0);
sd = new osg::ShapeDrawable(cylinder.get());
geode- addDrawable(sd.get());
} else if(shape == capsule) {
osg::ref_ptr osg::Capsule capsule = new osg::Capsule(osg::Vec3f(), 2.0, 5.0);
sd = new osg::ShapeDrawable(capsule.get());
geode- addDrawable(sd.get());
} else if(shape == cone) {
osg::ref_ptr osg::Cone cone = new osg::Cone(osg::Vec3f(), 2.0, 5.0);
sd = new osg::ShapeDrawable(cone.get());
geode- addDrawable(sd.get());
} else if(shape == sphere) {
osg::ref_ptr osg::Sphere sphere = new osg::Sphere(osg::Vec3f(), 2.0);
sd = new osg::ShapeDrawable(sphere.get());
geode- addDrawable(sd.get());
}
/* Use matrix tranform to place the object at desired position
* from origin. */
osg::ref_ptr osg::MatrixTransform mtleft = new osg::MatrixTransform;
mtleft- setDataVariance(osg::Object::STATIC);
osg::Matrix m;
m.makeTranslate(x, 0.0, 0.0);
mtleft- setMatrix(m);
/* Add geode to matrix transform object. */
mtleft- addChild(geode.get());
return mtleft.get();
}
--
Vijay Patil
___
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___
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Re: [osg-users] Utility functions
Please search the forum email archives this TOPIC has been talked about
100’s of times
These shapes are not meant to be used as drawing and textured shapes.
__
Gordon Tomlinson
mailto:[EMAIL PROTECTED] [EMAIL PROTECTED]
IM: mailto:[EMAIL PROTECTED] [EMAIL PROTECTED]
http://www.vis-sim.com/ www.vis-sim.com
http://www.gordontomlinson.com/ www.gordontomlinson.com
__
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of xuyuanzhen1
Sent: Wednesday, September 10, 2008 12:48 AM
To: OpenSceneGraph Users
Subject: Re: [osg-users] Utility functions
Hello all,
But how to take texture to this shapes?For example,I draw a cylinder
by following code:
---
osg::ref_ptr osg::Cylinder cylinder = new
osg::Cylinder(osg::Vec3f(), 2.0, 5.0);
sd = new osg::ShapeDrawable(cylinder.get());
geode- addDrawable(sd.get());
---
How I take texture to only the top face not all faces?
Best Regards.
2008-09-10
_
xuyuanzhen1
_
发件人： Vijay Patil
发送时间： 2008-09-10 12:44:43
收件人： OpenSceneGraph Users
抄送：
主题： Re: [osg-users] Utility functions
On Wed, Sep 10, 2008 at 8:16 AM, ami guru [EMAIL PROTECTED] wrote:
Hello forum,
Are there any utility functions for drawing spheres, planes , boxes ,cubes
etc. within OSG's framework?
Sajjad
___
osg-users mailing list
osg-users@lists.openscenegraph.org
http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
To draw regular shapes in OSG, refer to classes derived to
'osg::Shape'. Following is a segment from a program while
experimenting with those classes.
Also to find out if a particular shape is implemented in OSG, I
usually refer to HTML documentation (Generated using Doxygen). Just
refer to all the classes.
--
osg::ref_ptr osg::MatrixTransform draw_shape(std::string shape, float x)
{
/* Geode containing a shape. */
osg::ref_ptr osg::Geode geode = new osg::Geode;
osg::ref_ptr osg::ShapeDrawable sd;
if(shape == box) {
osg::ref_ptr osg::Box box = new osg::Box(osg::Vec3f(), 5.0);
sd = new osg::ShapeDrawable(box.get());
geode- addDrawable(sd.get());
} else if(shape == cylinder) {
osg::ref_ptr osg::Cylinder cylinder = new
osg::Cylinder(osg::Vec3f(), 2.0, 5.0);
sd = new osg::ShapeDrawable(cylinder.get());
geode- addDrawable(sd.get());
} else if(shape == capsule) {
osg::ref_ptr osg::Capsule capsule = new osg::Capsule(osg::Vec3f(), 2.0,
5.0);
sd = new osg::ShapeDrawable(capsule.get());
geode- addDrawable(sd.get());
} else if(shape == cone) {
osg::ref_ptr osg::Cone cone = new osg::Cone(osg::Vec3f(), 2.0, 5.0);
sd = new osg::ShapeDrawable(cone.get());
geode- addDrawable(sd.get());
} else if(shape == sphere) {
osg::ref_ptr osg::Sphere sphere = new osg::Sphere(osg::Vec3f(), 2.0);
sd = new osg::ShapeDrawable(sphere.get());
geode- addDrawable(sd.get());
}
/* Use matrix tranform to place the object at desired position
* from origin. */
osg::ref_ptr osg::MatrixTransform mtleft = new osg::MatrixTransform;
mtleft- setDataVariance(osg::Object::STATIC);
osg::Matrix m;
m.makeTranslate(x, 0.0, 0.0);
mtleft- setMatrix(m);
/* Add geode to matrix transform object. */
mtleft- addChild(geode.get());
return mtleft.get();
}
--
Vijay Patil
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