| OCR Text |
Show Subroutine ISOPLT was developed for the computer produced display of a solution space surface. The solution space, for the sample plots given m Appendix B, is that of various flow functions of a time dependent, viscous, imcompressitale fuild flow for various boundary configurations. Also shown in Appendix B is the surface plot of SIN (8*(X-1)/XL+1/4(Y-1))+1.0 (1) Appendix A gives a sample of the calling sequence for equation (1) in the MAIN program, and also a listing of subrouting ISOPLT. The algorithm used in ISOPLT can be stated as: 1. Draw the right most line first, moving from right to left. 2. Lift the pen (blank the display vector) when a line segment drops below (vertical reference) any previously drawn line segment, whan the line segment again moves above the vertical reference line.) PROGRAM VARIABLES TA(I,J) - functional value at the point I,J M - number of columns in TA N - number of rows in TA XP - size of plot (in inches) in horizontal direction YP - size of plot in vertical direction BND(I,J) - mode point typo BNDi I,J) - 0 interior point ~ 1 boundary point = 2 exterior point A(I,J) - spacing between nodes at (I.J) -1- |
