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Can we pass value as variable to enterpath function other than pathWidth

Infy1

 Hi,

Can we pass on a numerical value as a variable to enterPath function other than pathWidth .

 Regards,

Roy

Parents

  •  Hi Roy,

     I'm not sure that I understand the question correctly. You want to pass a number to enterPath that is not for the path width argument? If so, what is this number for, what would it control or influence if not the path width?  Or are you asking if it is possible to use a variable for the pathWidth rather than a fixed numerical value?  In this case yes, a variable can certainly be used, for example:

    myWidth = 1.0

    procedure(myEPdone(win done pts)
     printf("DEBUG: win %L done %L pts %L\n" win done pts)
    )

    enterPath(
     ?prompts list("First point" "Next point")
     ?pathWidth myWidth
     ?doneProc "myEPdone")
     
     Here "myWidth" is a global variable though; one method to avoid creating too many global variables is to use the property list slot on an existing symbol, for example the symbol "myEPdone" is global because it is used to define a function.  A symbol has three slots available for use, a value slot (for use as variables), a function slot and a property list slot.  All three of these can co-exist on a symbol, so in this case, we could use the property list slot on myEPdone (or some other function name) for global storage that does not look global (at least SKILL Lint will not mark you down for it).  So the example could be changed slightly:
     
    myEPdone.width = 0.8
    enterPath(
     ?prompts list("First point" "Next point")
     ?pathWidth myEPdone.width
     ?doneProc "myEPdone")
     
    Not sure if it helps, if not, please clearly state what you are looking for.
     
    Regards,

    Lawrence.
     
Reply

  •  Hi Roy,

     I'm not sure that I understand the question correctly. You want to pass a number to enterPath that is not for the path width argument? If so, what is this number for, what would it control or influence if not the path width?  Or are you asking if it is possible to use a variable for the pathWidth rather than a fixed numerical value?  In this case yes, a variable can certainly be used, for example:

    myWidth = 1.0

    procedure(myEPdone(win done pts)
     printf("DEBUG: win %L done %L pts %L\n" win done pts)
    )

    enterPath(
     ?prompts list("First point" "Next point")
     ?pathWidth myWidth
     ?doneProc "myEPdone")
     
     Here "myWidth" is a global variable though; one method to avoid creating too many global variables is to use the property list slot on an existing symbol, for example the symbol "myEPdone" is global because it is used to define a function.  A symbol has three slots available for use, a value slot (for use as variables), a function slot and a property list slot.  All three of these can co-exist on a symbol, so in this case, we could use the property list slot on myEPdone (or some other function name) for global storage that does not look global (at least SKILL Lint will not mark you down for it).  So the example could be changed slightly:
     
    myEPdone.width = 0.8
    enterPath(
     ?prompts list("First point" "Next point")
     ?pathWidth myEPdone.width
     ?doneProc "myEPdone")
     
    Not sure if it helps, if not, please clearly state what you are looking for.
     
    Regards,

    Lawrence.
     
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