| DclDrawContour (UDCNTR, UDCNTZ) | Draw 2 dimension contour line figures. | 
| DclSetContour (UDGCLA, UDGCLB) | Set contour level value. | 
| DclSetContourLine (UDSCLV) | Set 1 contour level. | 
| DclDelContourLevel (UDDCLV) | Eliminate 1 contour level. | 
| DclClearCounourLevel (UDICLV) | Invalidate contour level. | 
| D clSetContourLabelFormat (UDSFMT) | Set format of a contour label. | 
| DclGetContourLine (UDQCLV) | Refer to information of a contour level. | 
| D clGetContourLevelNumber (UDQCLN) | Refer to at present this total number of the contour level that is done Setting. | 
| DclGetContourInterval (RUDLEV) | Get interval of a contour level. | 
| D clGetContourLabelFormat (UDQFMT) | Refer to format of a contour label. | 
*The corresponding f77 interface name in parentheses.