7.6

Table Of Contents

Code Sample Example

In this example, the current position is set first and saved.

gsave and grestore do not have to be issued in pairs. Issuing two consecutive gsave commands without a call to grestore

simply replaces the previously saved parameters on the stack, while issuing two grestore commands simply restores the

same stack of parameters twice.

Example

moveto( 1, 1 )

%Position is now 1,1

gsave()

%Save current state

lineto( 2, 1 )

%Position is now 2,1

lineto( 2, 2 )

%Position is now 2,2

grestore()

%Restore previous state: position is now 1,1

GT (function)

Compares two expressions of any type and returns true if the first is greater than the second, false otherwise. This is the func-

tional equivalent to the > operator.

Syntax

gt( expression1, expression2 ) Boolean value

Arguments

expression1, expression2

Values of any type. Both expressions must be of the same type.

Code Sample Examples

Examples 1 and 2 illustrate both ways of comparing two expressions.

Example 1

if( gt(&current.line, 50) )

show('Bottom of page')

endif()