FSUG-Bangalore March 2009

fsug-bangalore@mm.gnu.org.in

37 participants
42 discussions

Explicit support for FOSS and Open Standards in BJP IT vision document
by vinay ವಿನಯ್ 10 Apr '09

10 Apr '09

Dear All, The extent of mainstream political support for Free and Open Source Software (FOSS) and Open Standards seems to be getting stronger. The Bharatiya Janata Party (BJP), the main opposition party in the current parliament, today released a National IT vision document (http://www.lkadvani.in/eng/images/stories/it-vision.pdf) <http://www.lkadvani.in/eng/images/stories/it-vision.pdf> which contains strong support for FOSS and Open Standards, such as: 1) Ten Million students to get a laptop (worth Rs 10,000 or around USD 200) which will be loaded with FOSS, (Page 21 of the document) 2) Creation of royalty free open standards ; call for all government software to be based on open standards (page 36, 37) 3) Promotion of user generated, FOSS knowledge repositories in Indian languages - similar to Wikipedia (page 20) The Left parties in India has been a traditional supporters of FOSS and open standards, with Kerala being a pioneer in the adoption and promotion of FOSS. Now with the BJP too clearly coming out in support of FOSS and Open Standards, there seems to move towards a political consensus favoring FOSS and Open Standards. In this connection, a few organizations are planning to hold a workshop in Delhi later this month where major political parties will be invited and their support for the adoption and promotion of FOSS and Open Standards will be sought. A draft FOSS manifesto (http://public-software.in/FOSS-manifesto) has been shared earlier on this list for endorsements from individuals and institutions which would also be discussed in this workshop. Other than the support for FOSS, there are other significant promises as well including a. Providing a Rs 10,000 fully powered laptop to 10 million students across the country b. Broadband Internet (2 Mbps) in every town and village, at cable TV prices (less than $4 per month). c. National Mission for Promotion of IT in Indian Languages. d. Unrestricted VoIP. e. Domestic IT hardware industry to be promoted to minimise dependence on imports. f. Domestic hosting industry to be promoted to minimise international bandwith charges. Thanks, Vinay. -- Vinay Sreenivasa IT for Change 91-98805-95032 vinay(a)itforchange.net http://itforchange.net http://india.is-watch.net/ http://is-watch.net

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OpenGL programs
by Prabodh CP 03 Apr '09

03 Apr '09

I am sending the OpenGL programs as an attachment just change the signature of the main program from void to int and all of them should work fine Then regarding the error message you mentioned i got the same error while working with *Ubuntu *(probably some display header file missing) I could not fix the error but however i tried the same program on *Mandriva 2009 *where i could compile and run the same program successfully this might not be the solution to your query but at least this can be of some help. Regards Prabodh C P

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RTI Application on VTU -M$ deal
by Anivar Aravind 30 Mar '09

30 Mar '09

See the response to RTI application by CIS http://cis-india.org/advocacy/floss/blog/rti-application-on-microsoft-vtu-d… Great Work Pranesh Anivar -- Any responsible politician should be encouraging a home grown Free Software industry because it creates the basis for future jobs. Learning Windows is like learning to eat every meal at McDonalds.

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Re: [FSUG-Bangalore] OpenGL Programs
by Khadri Arvind 29 Mar '09

29 Mar '09

On Sun, 2009-03-29 at 12:00 +0530, fsug-bangalore-request(a)mm.gnu.org.in wrote: > > On Sat, 2009-03-28 at 10:40 +0530, > fsug-bangalore-request(a)mm.gnu.org.in > > wrote: > > > I am sending the OpenGL programs as an attachment just change the > > > signature > > > of the main program from void to int and all of them should work > fine > > > > > > Then regarding the error message you mentioned i got the same > error > > > while > > > working with *Ubuntu *(probably some display header file missing) > I > > > could > > > not fix the error but however i tried the same program on > *Mandriva > > > 2009 *where > > > i could compile and run the same program successfully this might > not > > > be the > > > solution to your query but at least this can be of some help. > > > > > > Regards > > > Prabodh C P > > The problem actually is with the xserver-xorg-video-intel, pacakge, > the > > package is buggy in 8.10, I am using Ubuntu 8.10 64 bit, i can run > all > > the openGL programs. > > > actually mine is a 64 bit machine , i am running i386 version of > Ubuntu 8.10 > -- may be this is also a problem > > thanks for info Try running the programs on a different machine, or install ubuntu 64 bit and see... >

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Re: [FSUG-Bangalore] OpenGL programs
by Khadri Arvind 28 Mar '09

28 Mar '09

On Sat, 2009-03-28 at 10:40 +0530, fsug-bangalore-request(a)mm.gnu.org.in wrote: > I am sending the OpenGL programs as an attachment just change the > signature > of the main program from void to int and all of them should work fine > > Then regarding the error message you mentioned i got the same error > while > working with *Ubuntu *(probably some display header file missing) I > could > not fix the error but however i tried the same program on *Mandriva > 2009 *where > i could compile and run the same program successfully this might not > be the > solution to your query but at least this can be of some help. > > Regards > Prabodh C P The problem actually is with the xserver-xorg-video-intel, pacakge, the package is buggy in 8.10, I am using Ubuntu 8.10 64 bit, i can run all the openGL programs.

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Re: [FSUG-Bangalore] FSUG-Bangalore Digest, Vol 35, Issue 24
by arvind_khadri 27 Mar '09

27 Mar '09

On Fri, 2009-03-27 at 10:28 +0530, fsug-bangalore-request(a)mm.gnu.org.in wrote: > > > > > > > > i got a program from this link > > > > > > > > > http://people.sc.fsu.edu/~burkardt/cpp_src/rotating_cube_display_open_gl/ro…<http://people.sc.fsu.edu/%7Eburkardt/cpp_src/rotating_cube_display_open_gl/…> > > < > > http://people.sc.fsu.edu/% > 7Eburkardt/cpp_src/rotating_cube_display_open_gl/rotating_cube_display_open_gl.html > > > > > > > > > > > > > > > http://people.sc.fsu.edu/~burkardt/cpp_src/rotating_cube_display_open_gl/ro…<http://people.sc.fsu.edu/%7Eburkardt/cpp_src/rotating_cube_display_open_gl/…> > > < > > http://people.sc.fsu.edu/% > 7Eburkardt/cpp_src/rotating_cube_display_open_gl/rotating_cube_display_open_gl.html > > > > > > > > > > the program i have pasted below -- might be missing some lines as i > removed > > few lines ( comments ) while pasting here , the actual program is at > the > > bottom of the page ( link provided above ) > > > > > > > > # include <cstdlib> > > > # include <cmath> > > > # include <iostream> > > > # include <iomanip> > > > # include <fstream> > > > > > > # include <GL/glut.h> > > > > > > using namespace std; > > > > > > GLfloat vertices[][3] = { > > > { -1.0, -1.0, -1.0 }, > > > { 1.0, -1.0, -1.0 }, > > > { 1.0, 1.0, -1.0 }, > > > { -1.0, 1.0, -1.0 }, > > > { -1.0, -1.0, 1.0 }, > > > { 1.0, -1.0, 1.0 }, > > > { 1.0, 1.0, 1.0 }, > > > { -1.0, 1.0, 1.0 } }; > > > > > > GLfloat normals[][3] = { > > > { -1.0, -1.0, -1.0 }, > > > { 1.0, -1.0, -1.0 }, > > > { 1.0, 1.0, -1.0 }, > > > { -1.0, 1.0, -1.0 }, > > > { -1.0, -1.0, 1.0 }, > > > { 1.0, -1.0, 1.0 }, > > > { 1.0, 1.0, 1.0 }, > > > { -1.0, 1.0, 1.0 } }; > > > > > > GLfloat colors[][3] = { > > > { 0.0, 0.0, 0.0 }, > > > { 1.0, 0.0, 0.0 }, > > > { 1.0, 1.0, 0.0 }, > > > { 0.0, 1.0, 0.0 }, > > > { 0.0, 0.0, 1.0 }, > > > { 1.0, 0.0, 1.0 }, > > > { 1.0, 1.0, 1.0 }, > > > { 0.0, 1.0, 1.0 } }; > > > > > > static GLint axis = 2; > > > static GLfloat theta[3] = { 0.0, 0.0, 0.0 }; > > > > > > int main ( int argc, char *argv[] ); > > > void colorcube ( ); > > > void display ( ); > > > void mouse ( int btn, int state, int x, int y ); > > > void myReshape ( int w, int h ); > > > void polygon ( int a, int b, int c, int d ); > > > void spinCube ( ); > > > > > > > > > > > > int main ( int argc, char *argv[] ) > > > { > > > glutInit ( &argc, argv ); > > > glutInitDisplayMode ( GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH ); > > > glutInitWindowSize ( 500, 500 ); > > > glutInitWindowPosition ( 0, 0 ); > > > glutCreateWindow ( "Rotating cube" ); > > > glutReshapeFunc ( myReshape ); > > > glutDisplayFunc ( display ); > > > glutIdleFunc ( spinCube ); > > > glutMouseFunc ( mouse ); > > > glEnable ( GL_DEPTH_TEST ); > > > glutMainLoop ( ); > > > > > > return 0; > > > } > > > void colorcube ( ) > > > > > > { > > > polygon ( 0, 3, 2, 1 ); > > > polygon ( 2, 3, 7, 6 ); > > > polygon ( 0, 4, 7, 3 ); > > > polygon ( 1, 2, 6, 5 ); > > > polygon ( 4, 5, 6, 7 ); > > > polygon ( 0, 1, 5, 4 ); > > > > > > return; > > > } > > > > > > void display ( ) > > > > > > glClear ( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); > > > > > > glLoadIdentity ( ); > > > > > > glRotatef ( theta[0], 1.0, 0.0, 0.0 ); > > > glRotatef ( theta[1], 0.0, 1.0, 0.0 ); > > > glRotatef ( theta[2], 0.0, 0.0, 1.0 ); > > > > > > colorcube ( ); > > > glFlush ( ); > > > glutSwapBuffers ( ); > > > > > > return; > > > } > > > > > > > > > void mouse ( int btn, int state, int x, int y ) > > > { > > > if ( btn == GLUT_LEFT_BUTTON && state == GLUT_DOWN ) > > > { > > > axis = axis + 1; > > > } > > > if ( btn == GLUT_MIDDLE_BUTTON && state == GLUT_DOWN ) > > > { > > > axis = axis + 1; > > > } > > > if ( btn == GLUT_RIGHT_BUTTON && state == GLUT_DOWN ) > > > { > > > axis = axis + 1; > > > } > > > axis = axis % 3; > > > > > > return; > > > } > > > > > > void myReshape ( int w, int h ) > > > { > > > glViewport ( 0, 0, w, h ); > > > glMatrixMode ( GL_PROJECTION ); > > > glLoadIdentity ( ); > > > > > > if ( w <= h ) > > > { > > > glOrtho ( > > > -2.0, 2.0, > > > -2.0 * ( GLfloat ) h / ( GLfloat ) w, 2.0 * ( GLfloat ) h / > ( > > GLfloat > > > ) w, > > > -10.0, 10.0 ); > > > } > > > else > > > { > > > glOrtho ( > > > -2.0 * ( GLfloat ) h / ( GLfloat ) w, 2.0 * ( GLfloat ) h / > ( > > GLfloat > > > ) w, > > > -2.0, 2.0, > > > -10.0, 10.0 ); > > > } > > > > > > glMatrixMode ( GL_MODELVIEW ); > > > > > > return; > > > } > > > > > > > > > void polygon ( int a, int b, int c, int d ) > > > > > > { > > > glBegin ( GL_POLYGON ); > > > > > > glColor3fv ( colors[a] ); > > > glNormal3fv ( normals[a] ); > > > glVertex3fv ( vertices[a] ); > > > > > > glColor3fv ( colors[b] ); > > > glNormal3fv ( normals[b] ); > > > glVertex3fv ( vertices[b] ); > > > > > > glColor3fv ( colors[c] ); > > > glNormal3fv ( normals[c] ); > > > glVertex3fv ( vertices[c] ); > > > > > > glColor3fv ( colors[d] ); > > > glNormal3fv ( normals[d] ); > > > glVertex3fv ( vertices[d] ); > > > > > > glEnd ( ); > > > > > > return; > > > } > > > > > > > > > void spinCube ( ) > > > > > > { > > > theta[axis] = theta[axis] + 0.020; > > > if ( 360.0 < theta[axis] ) > > > { > > > theta[axis] = theta[axis] - 360.0; > > > } > > > glutPostRedisplay ( ); > > > > > > return; > > > } > > > > > > ------------------------------- > > > > > > I compiled using command > > > rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ g++ > > > rotating_cube_display_open_gl.C -lm -lGL -lGLU -lglut > > > > > > then i tried this > > > > > > ./a.out > > > X Error of failed request: BadRequest (invalid request code or no > such > > > operation) > > > Major opcode of failed request: 143 (GLX) > > > Minor opcode of failed request: 19 (X_GLXQueryServerString) > > > Serial number of failed request: 12 > > > Current serial number in output stream: 12 > > > rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ > > > > > > i want solution for any of the following problems > > > > > > > > > ------------------ this is for one of the labs for BE ( computer > science > > > students -- VI semester ) > > > Implement the following programs in C / C++ > > > > > > > > > 1. Program to recursively subdivide a tetrahedron to from 3D > > Sierpinski > > > gasket. The number of recursive steps is to be specified by the > user. > > > 2. Program to implement Liang-Barsky line clipping algorithm. > > > > > > 3. Program to draw a color cube and spin it using OpenGL > > transformation > > > matrices. > > > > > > 4. Program to create a house like figure and rotate it about a > given > > > fixed point using OpenGL functions. > > > > > > 5. Program to implement the Cohen-Sutherland line-clipping > algorithm. > > > Make provision to specify the input line, window for clipping > and view > > > port for displaying the clipped image. > > > > > > 6. Program to create a cylinder and a parallelepiped by > extruding a > > > circle and > > > > > > quadrilateral respectively. Allow the user to specify the > circle and > > > the quadrilateral. > > > > > > 7 Program, using OpenGL functions, to draw a simple shaded > scene > > > consisting of a tea pot on a table. Define suitably the position > and > > > properties of the light source along with the properties of the > > properties > > > of the surfaces of the solid object used in the scene. > > > > > > 1. Program to draw a color cube and allow the user to move the > camera > > > suitably to experiment with perspective viewing. Use OpenGL > functions. > > > 2. Program to fill any given polygon using scan-line area > filling > > > algorithm. (Use appropriate data structures.) > > > 3. Program to display a set of values { fij } as a rectangular > mesh. > > > > > > > > > Part B > > > > > > Develop a suitable Graphics package to implement the skills learnt > in the > > > theory and the exercises indicated in Part A. Use the OpenGL. > > > > > > > > > > > > > i have ran opengl progs :) i ran it as > > gcc -lglut <filename.c> -o <output file name > > > > > more on this blog > > > > > http://techietipsandtricks.blogspot.com/2009/03/opengl-using-gcc-in-ubuntu.… > > > > i followed your instructions, > still i am getting the following error , > > rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ g++ -lm -lGL -lGLU > -lglut > rotating_cube_display_open_gl.C -o out3d > rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ ls > a.out rotating_cube_display_open_gl.csh~ > out3d rotating_cube_display_open_gl.o > rotating_cube_display_open_gl.C rotating_cube.png > rotating_cube_display_open_gl.csh > rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ out3d > bash: out3d: command not found > rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ ./out3d > X Error of failed request: BadRequest (invalid request code or no > such > operation) > Major opcode of failed request: 143 (GLX) > Minor opcode of failed request: 19 (X_GLXQueryServerString) > Serial number of failed request: 12 > Current serial number in output stream: 12 > rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ Just check whether you have the code correct or not, as i can run it perfectly here, i tried the code out from the links you gave, i tried the spinning cube one, and also check whether you have correct header files and packages.*From the program i can say that freeglut is missing, some of the API's used use some functions of freeglut *. If you still couldn't get it right, mail me the code you are using, verbatim.And there is no need of doing -lm -lGL -lGLU , only lglut will do for the spinning cube program.Btw I am a student of CS 6th sem :)

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Re: [FSUG-Bangalore] any body worked with opengl? any help is appretiated (renuka prasad)
by Arvind K 27 Mar '09

27 Mar '09

> i got a program from this link > > http://people.sc.fsu.edu/~burkardt/cpp_src/rotating_cube_display_open_gl/ro…<http://people.sc.fsu.edu/%7Eburkardt/cpp_src/rotating_cube_display_open_gl/…> < http://people.sc.fsu.edu/%7Eburkardt/cpp_src/rotating_cube_display_open_gl/… > > > > http://people.sc.fsu.edu/~burkardt/cpp_src/rotating_cube_display_open_gl/ro…<http://people.sc.fsu.edu/%7Eburkardt/cpp_src/rotating_cube_display_open_gl/…> < http://people.sc.fsu.edu/%7Eburkardt/cpp_src/rotating_cube_display_open_gl/… > > the program i have pasted below -- might be missing some lines as i removed few lines ( comments ) while pasting here , the actual program is at the bottom of the page ( link provided above ) > > # include <cstdlib> > # include <cmath> > # include <iostream> > # include <iomanip> > # include <fstream> > > # include <GL/glut.h> > > using namespace std; > > GLfloat vertices[][3] = { > { -1.0, -1.0, -1.0 }, > { 1.0, -1.0, -1.0 }, > { 1.0, 1.0, -1.0 }, > { -1.0, 1.0, -1.0 }, > { -1.0, -1.0, 1.0 }, > { 1.0, -1.0, 1.0 }, > { 1.0, 1.0, 1.0 }, > { -1.0, 1.0, 1.0 } }; > > GLfloat normals[][3] = { > { -1.0, -1.0, -1.0 }, > { 1.0, -1.0, -1.0 }, > { 1.0, 1.0, -1.0 }, > { -1.0, 1.0, -1.0 }, > { -1.0, -1.0, 1.0 }, > { 1.0, -1.0, 1.0 }, > { 1.0, 1.0, 1.0 }, > { -1.0, 1.0, 1.0 } }; > > GLfloat colors[][3] = { > { 0.0, 0.0, 0.0 }, > { 1.0, 0.0, 0.0 }, > { 1.0, 1.0, 0.0 }, > { 0.0, 1.0, 0.0 }, > { 0.0, 0.0, 1.0 }, > { 1.0, 0.0, 1.0 }, > { 1.0, 1.0, 1.0 }, > { 0.0, 1.0, 1.0 } }; > > static GLint axis = 2; > static GLfloat theta[3] = { 0.0, 0.0, 0.0 }; > > int main ( int argc, char *argv[] ); > void colorcube ( ); > void display ( ); > void mouse ( int btn, int state, int x, int y ); > void myReshape ( int w, int h ); > void polygon ( int a, int b, int c, int d ); > void spinCube ( ); > > > > int main ( int argc, char *argv[] ) > { > glutInit ( &argc, argv ); > glutInitDisplayMode ( GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH ); > glutInitWindowSize ( 500, 500 ); > glutInitWindowPosition ( 0, 0 ); > glutCreateWindow ( "Rotating cube" ); > glutReshapeFunc ( myReshape ); > glutDisplayFunc ( display ); > glutIdleFunc ( spinCube ); > glutMouseFunc ( mouse ); > glEnable ( GL_DEPTH_TEST ); > glutMainLoop ( ); > > return 0; > } > void colorcube ( ) > > { > polygon ( 0, 3, 2, 1 ); > polygon ( 2, 3, 7, 6 ); > polygon ( 0, 4, 7, 3 ); > polygon ( 1, 2, 6, 5 ); > polygon ( 4, 5, 6, 7 ); > polygon ( 0, 1, 5, 4 ); > > return; > } > > void display ( ) > > glClear ( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); > > glLoadIdentity ( ); > > glRotatef ( theta[0], 1.0, 0.0, 0.0 ); > glRotatef ( theta[1], 0.0, 1.0, 0.0 ); > glRotatef ( theta[2], 0.0, 0.0, 1.0 ); > > colorcube ( ); > glFlush ( ); > glutSwapBuffers ( ); > > return; > } > > > void mouse ( int btn, int state, int x, int y ) > { > if ( btn == GLUT_LEFT_BUTTON && state == GLUT_DOWN ) > { > axis = axis + 1; > } > if ( btn == GLUT_MIDDLE_BUTTON && state == GLUT_DOWN ) > { > axis = axis + 1; > } > if ( btn == GLUT_RIGHT_BUTTON && state == GLUT_DOWN ) > { > axis = axis + 1; > } > axis = axis % 3; > > return; > } > > void myReshape ( int w, int h ) > { > glViewport ( 0, 0, w, h ); > glMatrixMode ( GL_PROJECTION ); > glLoadIdentity ( ); > > if ( w <= h ) > { > glOrtho ( > -2.0, 2.0, > -2.0 * ( GLfloat ) h / ( GLfloat ) w, 2.0 * ( GLfloat ) h / ( GLfloat > ) w, > -10.0, 10.0 ); > } > else > { > glOrtho ( > -2.0 * ( GLfloat ) h / ( GLfloat ) w, 2.0 * ( GLfloat ) h / ( GLfloat > ) w, > -2.0, 2.0, > -10.0, 10.0 ); > } > > glMatrixMode ( GL_MODELVIEW ); > > return; > } > > > void polygon ( int a, int b, int c, int d ) > > { > glBegin ( GL_POLYGON ); > > glColor3fv ( colors[a] ); > glNormal3fv ( normals[a] ); > glVertex3fv ( vertices[a] ); > > glColor3fv ( colors[b] ); > glNormal3fv ( normals[b] ); > glVertex3fv ( vertices[b] ); > > glColor3fv ( colors[c] ); > glNormal3fv ( normals[c] ); > glVertex3fv ( vertices[c] ); > > glColor3fv ( colors[d] ); > glNormal3fv ( normals[d] ); > glVertex3fv ( vertices[d] ); > > glEnd ( ); > > return; > } > > > void spinCube ( ) > > { > theta[axis] = theta[axis] + 0.020; > if ( 360.0 < theta[axis] ) > { > theta[axis] = theta[axis] - 360.0; > } > glutPostRedisplay ( ); > > return; > } > > ------------------------------- > > I compiled using command > rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ g++ > rotating_cube_display_open_gl.C -lm -lGL -lGLU -lglut > > then i tried this > > ./a.out > X Error of failed request: BadRequest (invalid request code or no such > operation) > Major opcode of failed request: 143 (GLX) > Minor opcode of failed request: 19 (X_GLXQueryServerString) > Serial number of failed request: 12 > Current serial number in output stream: 12 > rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ > > i want solution for any of the following problems > > > ------------------ this is for one of the labs for BE ( computer science > students -- VI semester ) > Implement the following programs in C / C++ > > > 1. Program to recursively subdivide a tetrahedron to from 3D Sierpinski > gasket. The number of recursive steps is to be specified by the user. > 2. Program to implement Liang-Barsky line clipping algorithm. > > 3. Program to draw a color cube and spin it using OpenGL transformation > matrices. > > 4. Program to create a house like figure and rotate it about a given > fixed point using OpenGL functions. > > 5. Program to implement the Cohen-Sutherland line-clipping algorithm. > Make provision to specify the input line, window for clipping and view > port for displaying the clipped image. > > 6. Program to create a cylinder and a parallelepiped by extruding a > circle and > > quadrilateral respectively. Allow the user to specify the circle and > the quadrilateral. > > 7 Program, using OpenGL functions, to draw a simple shaded scene > consisting of a tea pot on a table. Define suitably the position and > properties of the light source along with the properties of the properties > of the surfaces of the solid object used in the scene. > > 1. Program to draw a color cube and allow the user to move the camera > suitably to experiment with perspective viewing. Use OpenGL functions. > 2. Program to fill any given polygon using scan-line area filling > algorithm. (Use appropriate data structures.) > 3. Program to display a set of values { fij } as a rectangular mesh. > > > Part B > > Develop a suitable Graphics package to implement the skills learnt in the > theory and the exercises indicated in Part A. Use the OpenGL. > > > i have ran opengl progs :) i ran it as gcc -lglut <filename.c> -o <output file name > more on this blog http://techietipsandtricks.blogspot.com/2009/03/opengl-using-gcc-in-ubuntu.… -- My Fingerprint:1024D/67CF3C40 :7C43 BB90 1E92 2E8D 647A 5DB0 DC64 0799 67CF 3C40 Arvind: https://launchpad.net/~arvindkhadri The box said Windoze or better,so i installed Linux http://techietipsandtricks.blogspot.com http://xkcd.com/272/ Registered Linux User #46760 arvind_khadri (on irc.freenode.net)

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any body worked with opengl? any help is appretiated
by renuka prasad 26 Mar '09

26 Mar '09

i got a program from this link http://people.sc.fsu.edu/~burkardt/cpp_src/rotating_cube_display_open_gl/ro… http://people.sc.fsu.edu/~burkardt/cpp_src/rotating_cube_display_open_gl/ro… # include <cstdlib> # include <cmath> # include <iostream> # include <iomanip> # include <fstream> # include <GL/glut.h> using namespace std; GLfloat vertices[][3] = { { -1.0, -1.0, -1.0 }, { 1.0, -1.0, -1.0 }, { 1.0, 1.0, -1.0 }, { -1.0, 1.0, -1.0 }, { -1.0, -1.0, 1.0 }, { 1.0, -1.0, 1.0 }, { 1.0, 1.0, 1.0 }, { -1.0, 1.0, 1.0 } }; GLfloat normals[][3] = { { -1.0, -1.0, -1.0 }, { 1.0, -1.0, -1.0 }, { 1.0, 1.0, -1.0 }, { -1.0, 1.0, -1.0 }, { -1.0, -1.0, 1.0 }, { 1.0, -1.0, 1.0 }, { 1.0, 1.0, 1.0 }, { -1.0, 1.0, 1.0 } }; GLfloat colors[][3] = { { 0.0, 0.0, 0.0 }, { 1.0, 0.0, 0.0 }, { 1.0, 1.0, 0.0 }, { 0.0, 1.0, 0.0 }, { 0.0, 0.0, 1.0 }, { 1.0, 0.0, 1.0 }, { 1.0, 1.0, 1.0 }, { 0.0, 1.0, 1.0 } }; static GLint axis = 2; static GLfloat theta[3] = { 0.0, 0.0, 0.0 }; int main ( int argc, char *argv[] ); void colorcube ( ); void display ( ); void mouse ( int btn, int state, int x, int y ); void myReshape ( int w, int h ); void polygon ( int a, int b, int c, int d ); void spinCube ( ); int main ( int argc, char *argv[] ) { glutInit ( &argc, argv ); glutInitDisplayMode ( GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH ); glutInitWindowSize ( 500, 500 ); glutInitWindowPosition ( 0, 0 ); glutCreateWindow ( "Rotating cube" ); glutReshapeFunc ( myReshape ); glutDisplayFunc ( display ); glutIdleFunc ( spinCube ); glutMouseFunc ( mouse ); glEnable ( GL_DEPTH_TEST ); glutMainLoop ( ); return 0; } void colorcube ( ) { polygon ( 0, 3, 2, 1 ); polygon ( 2, 3, 7, 6 ); polygon ( 0, 4, 7, 3 ); polygon ( 1, 2, 6, 5 ); polygon ( 4, 5, 6, 7 ); polygon ( 0, 1, 5, 4 ); return; } void display ( ) glClear ( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); glLoadIdentity ( ); glRotatef ( theta[0], 1.0, 0.0, 0.0 ); glRotatef ( theta[1], 0.0, 1.0, 0.0 ); glRotatef ( theta[2], 0.0, 0.0, 1.0 ); colorcube ( ); glFlush ( ); glutSwapBuffers ( ); return; } void mouse ( int btn, int state, int x, int y ) { if ( btn == GLUT_LEFT_BUTTON && state == GLUT_DOWN ) { axis = axis + 1; } if ( btn == GLUT_MIDDLE_BUTTON && state == GLUT_DOWN ) { axis = axis + 1; } if ( btn == GLUT_RIGHT_BUTTON && state == GLUT_DOWN ) { axis = axis + 1; } axis = axis % 3; return; } void myReshape ( int w, int h ) { glViewport ( 0, 0, w, h ); glMatrixMode ( GL_PROJECTION ); glLoadIdentity ( ); if ( w <= h ) { glOrtho ( -2.0, 2.0, -2.0 * ( GLfloat ) h / ( GLfloat ) w, 2.0 * ( GLfloat ) h / ( GLfloat ) w, -10.0, 10.0 ); } else { glOrtho ( -2.0 * ( GLfloat ) h / ( GLfloat ) w, 2.0 * ( GLfloat ) h / ( GLfloat ) w, -2.0, 2.0, -10.0, 10.0 ); } glMatrixMode ( GL_MODELVIEW ); return; } void polygon ( int a, int b, int c, int d ) { glBegin ( GL_POLYGON ); glColor3fv ( colors[a] ); glNormal3fv ( normals[a] ); glVertex3fv ( vertices[a] ); glColor3fv ( colors[b] ); glNormal3fv ( normals[b] ); glVertex3fv ( vertices[b] ); glColor3fv ( colors[c] ); glNormal3fv ( normals[c] ); glVertex3fv ( vertices[c] ); glColor3fv ( colors[d] ); glNormal3fv ( normals[d] ); glVertex3fv ( vertices[d] ); glEnd ( ); return; } void spinCube ( ) { theta[axis] = theta[axis] + 0.020; if ( 360.0 < theta[axis] ) { theta[axis] = theta[axis] - 360.0; } glutPostRedisplay ( ); return; } ------------------------------- I compiled using command rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ g++ rotating_cube_display_open_gl.C -lm -lGL -lGLU -lglut then i tried this ./a.out X Error of failed request: BadRequest (invalid request code or no such operation) Major opcode of failed request: 143 (GLX) Minor opcode of failed request: 19 (X_GLXQueryServerString) Serial number of failed request: 12 Current serial number in output stream: 12 rvcemcabrp@rvcemcabrp-laptop:~/Desktop/opengl$ i want solution for any of the following problems ------------------ this is for one of the labs for BE ( computer science students -- VI semester ) SYSTEM SOFTWARE Implement the following programs in C / C++ 1. Program to recursively subdivide a tetrahedron to from 3D Sierpinski gasket. The number of recursive steps is to be specified by the user. 2. Program to implement Liang-Barsky line clipping algorithm. 3. Program to draw a color cube and spin it using OpenGL transformation matrices. 4. Program to create a house like figure and rotate it about a given fixed point using OpenGL functions. 5. Program to implement the Cohen-Sutherland line-clipping algorithm. Make provision to specify the input line, window for clipping and view port for displaying the clipped image. 6. Program to create a cylinder and a parallelepiped by extruding a circle and quadrilateral respectively. Allow the user to specify the circle and the quadrilateral. 7 Program, using OpenGL functions, to draw a simple shaded scene consisting of a tea pot on a table. Define suitably the position and properties of the light source along with the properties of the properties of the surfaces of the solid object used in the scene. 1. Program to draw a color cube and allow the user to move the camera suitably to experiment with perspective viewing. Use OpenGL functions. 2. Program to fill any given polygon using scan-line area filling algorithm. (Use appropriate data structures.) 3. Program to display a set of values { fij } as a rectangular mesh. Part B Develop a suitable Graphics package to implement the skills learnt in the theory and the exercises indicated in Part A. Use the OpenGL.

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Re: [FSUG-Bangalore] Need info | Web-based FOSS project management tool
by Rakesh arky Ambati 26 Mar '09

26 Mar '09

--- On Wed, 25/3/09, Raghu <raghunandanhegde(a)gmail.com> wrote: > > I'm looking for a web-based, FOSS project management > tool. Does anybody have any suggestions? > http://collabtive.o-dyn.de/index..php http://projectory.sourceforge.net http://airtodo.sourceforge..net HTH Cheers --arky Rakesh 'arky' Ambati IT Catalyst Braille Without Borders :: http://braillewithoutborders.org/ Homepage :: http://playingwithsid.blogspot.com Check out the all-new Messenger 9.0! Go to http://in.messenger.yahoo.com/

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Website re-design / maintenance for an NGO
by Raghu 25 Mar '09

25 Mar '09

Hi all, Swagath Education and Community Action (SECA) is a recently formed NGO working in the areas of education and health in a slum in Tilaknagar, Bangalore. SECA has a basic website - www.swagath.org.in - which we would like to be made into something more attractive, children-centric, feature-rich and yet, easy to use. We would like to add web 2.0 features like discussion forums, tag clouds, videos etc. Requesting volunteers from the FOSS community to come forward and help us. The existing website has been made using Joomla. Please get in touch with Raghu (raghu(a)swagath.org.in / 98802 83974) or Roshni (roshni(a)swagath.org.in) for details. Thanks in advance. On behalf of SECA, Raghu

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FSUG-Bangalore March 2009