In this paper an algorithm to scan convert a line using method of deviation on hexagonal grid is proposed. The method of deviation computes pixel nearest to analog line using only integer arithmetic. The proposed algorithm is compared favorably with the latest line drawing algorithm on a hexagonal grid. The main advantage of the proposed approach is that the same may be applied to an arbitrary curve. Owing to this approach we may visualize design ideas through animation and photorealistic renderings, and simulate how a design will perform in the real world in CAD tool with less aliasing artifact.