Abstract:

New algorithm NSVD_GA(Grid Scan and Vertex Digital_Generation Algorithm of Contour Lines Drawing) is brought forward for drawing X-rays diffraction polar diagram and other contour-lines graph based on data of crystalloid structure and request of contour-lines graph drawing. NSVD_GA draws contour lines using technique of grids scan and numeric contrast after nodes feature instead of contour lines tracing, which selects jumping-off point and grids exit difficultly, and it reduced judge time in comparing values of contour lines and grid vertexes. NSVD_GA is adapted for data expression of scientific research and other contour drawing, and it has clarity of thinking, briefness of realization and highly efficiency.

Key words: contourlines, contourmap, gridscan, nodesfeature, polefigure