Audit a parse against the PostScript it came from

Counts the drawing operators in the file and the operations the parser produced, and reports anything unaccounted for. Reading a plot back is easy to get half right – an operator that is silently ignored looks exactly like one that is not there – so this compares the two directly rather than leaving it to the eye.

Usage

tda_check_ps(file, ...)

Arguments

file

a .ps file, a TDA run, or a parse from tda_read_ps.

...

passed to tda_read_ps.

Value

A data frame with one row per operator: how often it appears in the file, whether the parser handles it, and how many operations resulted.

See also

Other plotting: plot.tda_ple(), tda_pl(), tda_pl_arc(), tda_pl_axis(), tda_pl_graph(), tda_pl_hist, tda_pl_panel(), tda_pl_regression(), tda_pl_scatter(), tda_plot_ps(), tda_ps(), tda_ps3(), tda_read_ps()

Examples

p <- tda_ps(xlim = c(0, 10), ylim = c(0, 10))
p <- tda_pl_circle(p, at = c(5, 5), r = 2)
tda_check_ps(tda_ps_file(p))
#>        operator in_file handled ignorable unaccounted
#> 1             m       2    TRUE     FALSE       FALSE
#> 2             l       3    TRUE     FALSE       FALSE
#> 5        stroke       2    TRUE     FALSE       FALSE
#> 7     closepath       1    TRUE     FALSE       FALSE
#> 8       newpath       1   FALSE      TRUE       FALSE
#> 9          clip       1   FALSE      TRUE       FALSE
#> 10        gsave       1    TRUE     FALSE       FALSE
#> 11     grestore       1    TRUE     FALSE       FALSE
#> 12          arc       1    TRUE     FALSE       FALSE
#> 18 setlinewidth       1    TRUE     FALSE       FALSE
#> 19      setdash       1    TRUE     FALSE       FALSE
#> 20    translate       1    TRUE     FALSE       FALSE
#> 21       rotate       1    TRUE     FALSE       FALSE
#> 22        scale       1    TRUE     FALSE       FALSE
#> 25     showpage       1   FALSE      TRUE       FALSE