Link to home
Start Free TrialLog in
Avatar of jsbsudha
jsbsudhaFlag for Germany

asked on

translation, scaling and rotation opengl

I have done translation, scaling and rotation in my opengl objects......I want to know  about the difference between
1, object translation and coordinate translation
2,object scaling and coordinate scaling
3, object rotation and coordinate rotation

so I need  very simple sample example code for these transformations which explains the difference.........
ASKER CERTIFIED SOLUTION
Avatar of Infinity08
Infinity08
Flag of Belgium image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
to expand infinity answer, opengl does not have this type of terminology (object translation and coordinate translation). it just has translation, scaling and rotation.

translation:
  glTranslatexx

scaling:
  glScalexx

rotation:
  glRotatexx

maybe we can help you, if you tell us in which context you heard those terms..


ike
Avatar of jsbsudha

ASKER


Please open and see the powerpoint presentation which clearly explains the differenec but there is no code
http://graphics.stanford.edu/courses/cs148-07/lectures/midtermreview/midterm_review.ppt
Can you maybe copy and paste the relevant part from the presentation ?
have no powerpoint either :(
if you type in google.com the following statement...

midterm review session graphics

You will get  first search as

PPT CS248 template
Yes, but can you copy and paste the text from the presentation that is relevant to this question ? I don't have PowerPoint, and neither has ikework apparently.
SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
I am not satisfied with the answers......
How can we answer if we don't have all the information ? Refer to my previous post please ...
Oh and btw :

>> I am not satisfied with the answers......

This doesn't really say much. What is it that we can help you with further ? Which part are you not satisfied about ? Did we misinterpret the question ?
In the powerpoint presentation , it is clearly explained about the object transformation and coordinate transformation with some diagrams........so You can understand clearly only if you see that disgrams........I could not copy all the diagrams into bmp......It is a work for me..........+

Finally I understood the difference by myself.......but i need the code showing the difference between them........... I am doing it by myself............
You can post images here no problem ;) You don't have to post the whole presentation - just the relevant part (which should just be a few lines of text).


>> Finally I understood the difference by myself.......

Anyway ... care to explain what the difference is ?
>> I am not satisfied with the answers......

hey jsbsudha, sorry but that was my best guess from the spare information you gave us .. any chance you show us the relevant infos? we're gonna be happy to help :)