Comments by monerajesh (Top 2 by date)

this is how I implemented your code..but the result is a light green colored screen with no circle
int M_IN_DEGREE = 370;
int N_IN_DEGREE = 100;
int nCount = 1;
float[] stVertexArray=new float[2*360];
FloatBuffer sampleBuffer;

stVertexArray[0] = (float) 0.0;
stVertexArray[1] = (float) 0.0;

for( int nR =N_IN_DEGREE; nR < M_IN_DEGREE; nR++ )
{
float fX = (float) Math.sin((float)nR * (45*(Math.PI/180)) ) ;
float fY = (float)Math.cos((float)nR * (45*(Math.PI/180)) ) ;
stVertexArray[nCount*2] = fX;
stVertexArray[nCount*2 + 1] = fY;
nCount++;
}
ByteBuffer bBuff = ByteBuffer.allocateDirect(stVertexArray.length * 4);
bBuff.order(ByteOrder.nativeOrder());
sampleBuffer = bBuff.asFloatBuffer();
sampleBuffer.put(stVertexArray);
sampleBuffer.position(0);

gl.glEnableClientState( GL10.GL_VERTEX_ARRAY );
gl.glVertexPointer( 2, GL10.GL_FLOAT, 0, sampleBuffer );
gl.glDrawArrays( GL10.GL_LINE_LOOP, 0, nCount );