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SUBROUTINE PMKR2 (DXARAY,INCX,DYARAY,INCY,N) C$ (Polymarker Relative 2-D) C$ Beginning at the current point, draw markers at each of N C$ points in turn. (DXARAY(*),DYARAY(*),0) define the C$ relative displacements from the preceding point. INCX and C$ INCY are the displacements between successive X and Y C$ values in the arrays. These will normally be both 1. If C$ an increment INCX or INCY is negative, the starting vertex C$ is taken as (1-N)*INC + 1 instead of 1, so that the array C$ is stepped through in reverse order. The marker used is C$ the one currently selected. C$ (02-APR-82)