add_plot Subroutine

private subroutine add_plot(me, x, y, label, linestyle, markersize, linewidth, xlim, ylim, xscale, yscale, color, istat)

Add an x,y plot.

Type Bound

pyplot

Arguments

Type IntentOptional Attributes Name
class(pyplot), intent(inout) :: me

pyplot handler
real(kind=wp), intent(in), dimension(:) :: x

x values
real(kind=wp), intent(in), dimension(:) :: y

y values
character(len=*), intent(in) :: label

plot label
character(len=*), intent(in) :: linestyle

style of the plot line
integer, intent(in), optional :: markersize

size of the plot markers
integer, intent(in), optional :: linewidth

width of the plot line
real(kind=wp), intent(in), optional, dimension(2) :: xlim

x-axis range
real(kind=wp), intent(in), optional, dimension(2) :: ylim

y-axis range
character(len=*), intent(in), optional :: xscale

example: 'linear' (default), 'log'
character(len=*), intent(in), optional :: yscale

example: 'linear' (default), 'log'
real(kind=wp), intent(in), optional, dimension(:) :: color

RGB color tuple [0-1,0-1,0-1]
integer, intent(out), optional :: istat

status output (0 means no problems)

Calls

proc~~add_plot~~CallsGraph proc~add_plot pyplot%add_plot proc~add_str pyplot%add_str proc~add_plot->proc~add_str proc~optional_int_to_string optional_int_to_string proc~add_plot->proc~optional_int_to_string proc~vec_to_string vec_to_string proc~add_plot->proc~vec_to_string proc~integer_to_string integer_to_string proc~optional_int_to_string->proc~integer_to_string

Source Code

    subroutine add_plot(me, x, y, label, linestyle, markersize, linewidth, xlim, ylim, xscale, yscale, color, istat)

    class(pyplot),          intent (inout)         :: me           !! pyplot handler
    real(wp), dimension(:), intent (in)            :: x            !! x values
    real(wp), dimension(:), intent (in)            :: y            !! y values
    character(len=*),       intent (in)            :: label        !! plot label
    character(len=*),       intent (in)            :: linestyle    !! style of the plot line
    integer,                intent (in), optional  :: markersize   !! size of the plot markers
    integer,                intent (in), optional  :: linewidth    !! width of the plot line
    real(wp),dimension(2),  intent (in), optional  :: xlim         !! x-axis range
    real(wp),dimension(2),  intent (in), optional  :: ylim         !! y-axis range
    character(len=*),       intent (in), optional  :: xscale       !! example: 'linear' (default), 'log'
    character(len=*),       intent (in), optional  :: yscale       !! example: 'linear' (default), 'log'
    real(wp),dimension(:),  intent (in), optional  :: color        !! RGB color tuple [0-1,0-1,0-1]
    integer,                intent (out), optional :: istat        !! status output (0 means no problems)

    character(len=:), allocatable :: arg_str      !! the arguments to pass to `plot`
    character(len=:), allocatable :: xstr         !! x values stringified
    character(len=:), allocatable :: ystr         !! y values stringified
    character(len=:), allocatable :: xlimstr      !! xlim values stringified
    character(len=:), allocatable :: ylimstr      !! ylim values stringified
    character(len=:), allocatable :: color_str    !! color values stringified
    character(len=max_int_len)    :: imark        !! actual markers size
    character(len=max_int_len)    :: iline        !! actual line width
    character(len=*), parameter   :: xname = 'x'  !! x variable name for script
    character(len=*), parameter   :: yname = 'y'  !! y variable name for script

    if (allocated(me%str)) then

        if (present(istat)) istat = 0

        !axis limits (optional):
        if (present(xlim)) call vec_to_string(xlim, me%real_fmt, xlimstr, me%use_numpy)
        if (present(ylim)) call vec_to_string(ylim, me%real_fmt, ylimstr, me%use_numpy)

        !convert the arrays to strings:
        call vec_to_string(x, me%real_fmt, xstr, me%use_numpy)
        call vec_to_string(y, me%real_fmt, ystr, me%use_numpy)

        !get optional inputs (if not present, set default value):
        call optional_int_to_string(markersize, imark, '3')
        call optional_int_to_string(linewidth, iline, '3')

        !write the arrays:
        call me%add_str(trim(xname)//' = '//xstr)
        call me%add_str(trim(yname)//' = '//ystr)
        call me%add_str('')

        !main arguments for plot:
        arg_str = trim(xname)//','//&
                  trim(yname)//','//&
                  trim(me%raw_str_token)//'"'//trim(linestyle)//'",'//&
                  'linewidth='//trim(adjustl(iline))//','//&
                  'markersize='//trim(adjustl(imark))//','//&
                  'label='//trim(me%raw_str_token)//'"'//trim(label)//'"'

        ! optional arguments:
        if (present(color)) then
            if (size(color)<=3) then
                call vec_to_string(color(1:3), '*', color_str, use_numpy=.false., is_tuple=.true.)
                arg_str = arg_str//',color='//trim(color_str)
            end if
        end if

        !write the plot statement:
        call me%add_str('ax.plot('//arg_str//')')

        !axis limits:
        if (allocated(xlimstr)) call me%add_str('ax.set_xlim('//xlimstr//')')
        if (allocated(ylimstr)) call me%add_str('ax.set_ylim('//ylimstr//')')

        !axis scales:
        if (present(xscale)) call me%add_str('ax.set_xscale('//trim(me%raw_str_token)//'"'//xscale//'")')
        if (present(yscale)) call me%add_str('ax.set_yscale('//trim(me%raw_str_token)//'"'//yscale//'")')

        call me%add_str('')

    else
        if (present(istat)) istat = -1
        write(error_unit,'(A)') 'Error in add_plot: pyplot class not properly initialized.'
    end if

    end subroutine add_plot