15. Note about fields with subpoints

In Aster, there are cham_elem with subpoints (both for cham_elem at the nodes and for cham_elem at Gauss points). In the “RESULTAT” format, IMPR_RESU allows the printing of cham_elem with sub-points.

If the same cham_elem has subpoints on some stitches and not on others, the cham_elem will be printed in two stages:

• first the impression of the cham_elem on all the stitches on which there are no sub-dots,

• then the printing of the cham_elem on all the stitches on which there are sub-dots.

A specific format is used for each of these prints. Printing sub-point fields is « basic »: we systematically print all geometric entities, all components and all sub-points (one line per sub-point). Real numbers are always printed with 10 significant figures.

A tip for printing more significant figures for a field with subpoints is to call the POST_CHAMP command to extract the field on a particular subpoint and then print the new data structure with the FORMAT_R keyword.