The routine <#1070#>plfont<#1070#> (page #plfont#1071>) sets up the default font for all character
strings. It may be over-ridden for (a portion) of a string by using an
escape sequence within the text, as described below. Four
fonts are available, the default font (1) is simple and fastest to draw,
while the others are useful for presentation plots on a high-resolution
device.
The font codes are interpreted as follows:
- <#906#>font = 1<#906#>: normal simple font
- <#907#>font = 2<#907#>: roman font
- <#908#>font = 3<#908#>: italic font
- <#909#>font = 4<#909#>: script font
The routine <#1072#>plschr<#1072#> (page #plschr#1073>) is used to set up the size of subsquent
characters drawn. The actual height of a character is the product of the
default character size and a scaling factor. If no call is made to
<#912#>plschr<#912#>, the default character size is set up depending on the number
of subpages defined in the call to <#913#>plstar<#913#> or <#914#>plbeg<#914#>, and the
scale is set to
1.0. Under normal circumstances, it is recommended that the user does not
alter the default height, but simply uses the scale parameter. This can
be done by calling <#915#>plschr<#915#> with <#916#>def=0.0<#916#> and <#917#>scale<#917#> set to the
desired multiple of the default height. If the default height is to be
changed, <#918#>def<#918#> is set to the new default height in millimetres, and
the new character height is again set to <#919#>def<#919#> multiplied by <#920#>scale<#920#>.
The routine <#1074#>plssym<#1074#> (page #plssym#1075>) sets up the size of all subsequent symbols
drawn by calls to <#922#>plpoin<#922#> and <#923#>plsym<#923#>. It operates analogously
to <#924#>plschr<#924#> as described above.
The lengths of major and minor ticks on the axes are set up by the routines
<#1076#>plsmaj<#1076#> (page #plsmaj#1077>) and <#1078#>plsmin<#1078#> (page #plsmin#1079>).