section t of routines in graph.i

Home Manual Packages Global Index Keywords Quick Reference | # functions in graph.i - t
triangle |
                 triangle=   plotting keyword

         sets the triangulation array for a contour plot.  The triangulation
         array must be the same shape as the IREG (region number) array, and
         the correspondence between mesh zones and indices is the same as
         for IREG.  The triangulation array is used to resolve the ambiguity
         in saddle zones, in which the function Z being contoured has two
         diagonally opposite corners high, and the other two corners low.
         The triangulation array element for a zone is 0 if the algorithm is
         to choose a triangulation, based on the curvature of the first
         contour to enter the zone.  If zone (i,j) is to be triangulated
         from point (i-1,j-1) to point (i,j), then TRIANGLE(i,j)=1,
         while if it is to be triangulated from (i-1,j) to (i,j-1), then
         TRIANGLE(i,j)=-1.  Contours will never cross this "triangulation
         line".
         You should rarely need to fiddle with the traingulation array;
         it is a hedge for dealing with pathological cases.
       PLOTTING COMMANDS: plc

    keyword,  defined at i0/graph.i   line 1029
type |
                 type=   plotting keyword

         selects line type.  Valid values are the strings "solid", "dash",
         "dot", "dashdot", "dashdotdot", and "none".  The "none" value
         causes the line to be plotted as a polymarker.  You should also
         check the plmk function if you need polymarkers.
         The type value may also be a number; 0 is "none", 1 is "solid",
         2 is "dash", 3 is "dot", 4 is "dashdot", and 5 is "dashdotdot".
       PLOTTING COMMANDS: plg, plm, plc, pldj

    keyword,  defined at i0/graph.i   line 828
SEE ALSO: | width, color, marks, marker, rays, closed, smooth, plmk