int HECMW_vis_surface_compute(Surface *sff, struct hecmwST_local_mesh *mesh, struct hecmwST_result_data *data, int *bdflag, int *sum_v, int *sum_t, int *tvertex, int *tpatch, double *minc, double *maxc, Result *result, int sf_i, int mynode, HECMW_Comm VIS_COMM)
void find_isoline(int isomum, int sum_polys, double mincolor, double maxcolor, double *vcoord, int *plist, double *vcolor, Isohead *isohead)