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30-04-2017, 09:25 PM

Please send tha open CL code for moving train

jaseela123d · 01-05-2017, 12:02 PM

Creating a train in computer graphics is not that hard but logical. In this post we will see an example of OpenGL projects on trains. Our goal is to develop a simple cg projects for the execution of train. Here we have to draw the following things -

• Train - bogies and engine
• Train tracks
• Sky with surroundings (Environment)
After finishing the drawing our next objective would be to give movement to the train. As we are going to draw a simple train so that our track will be a straight not zigzag shaped.

Code:
void TRAINS(int x1,int y1,int a,int b) 

{

int i=0; glBegin(GL_QUADS); 

glColor3f(0,0.0,1.0); //ENGINE 

glVertex2f(x1,y1); //lengh of engine=60;height of engine=30; 

glColor3f(0,0.0,1.0); 

glVertex2f(x1+60,y1); 

glColor3f(1.0,0.0,0.0); 

glVertex2f(x1+60,y1-30); 

glColor3f(0,0.0,0.0); 

glVertex2f(x1,y1-30); 

glEnd();

while(i<3) { 

glBegin(GL_QUADS); //BOGIES 

glColor3f(1.0,0.0,0.0); //For right train a=795,b=510 

glVertex2f(a,b); 

glColor3f(1.0,0.0,0.0); 

glVertex2f(a+60,b); 

glColor3f(1.0,0.0,0.0); 

glVertex2f(a+60,b-20); 

glColor3f(1.0,0.0,0.0); 

glVertex2f(a,b-20); 

glEnd(); 

a+=65; i++; 

}

}

This function can be called any where therefore easy to create sample trains. Similarly we have different functions for Sky, Environments and Tracks. You can download the free cg source code below. All things done in the example of opengl projects have used opengl primitive objects.

The next level of difficulty is to move all the Train - bogies and the engine. For the movement of the train we have logically used the call list, the push-pop matrix and the Clock () function more important. The clock () is defined in the <time.h> header, so you must also include it in the project.

Clock_t goal = mseconds + clock (); While (meta> clock ());

Our new function will help the train to operate according to a level of time, otherwise we can go so fast or so slow. We set a target and add some time to move objects. The above code is called in a function and we give it the mseconds parameter according to our speed requirement we want.

That's all that ended things. I just summed up the example of Running Train Opengl Projects while you can easily understand things when you start running the program.

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