FarseerPhysics.Samples.DrawingSystem.LineBatch.Begin C# (CSharp) Method

        public void Begin(Matrix projection, Matrix view)
        {
            if (_hasBegun)
                throw new InvalidOperationException("End must be called before Begin can be called again.");

            _device.SamplerStates[0] = SamplerState.AnisotropicClamp;
            //tell our basic effect to begin.
            _basicEffect.Projection = projection;
            _basicEffect.View = view;
            _basicEffect.CurrentTechnique.Passes[0].Apply();

            // flip the error checking boolean. It's now ok to call DrawLineShape, Flush,
            // and End.
            _hasBegun = true;
        }