Sorry, I discovered the issue myself Space between the : and = sign was the origin of error. Problem solved by itself

25 feb. 2020 kl. 18:34 skrev Jan-Erik Hägglöf :

The following code gives an error, my goal is to draw 4 different arrows but only three functions successfully.

The error log shows

metapost > initializing number mode 'scaled' metapost log > metapost log > loading metafun, including plain.mp version 1.004 for metafun iv and xl metapost log > metapost log > >> unknown path D metapost log > ! Isolated expression. metapost log > <to be read again> metapost log > : metapost log > <*> ... :=(12cm, -1cm)--(11cm, -1cm); path D ; D : metapost log > =(4cm, -1cm)--(3cm, -1cm)... metapost log >

And the code is as follows

\startMPcode path A ; A :=(0cm, -1cm)--(1cm, -1cm); path B ; B :=(13.5cm, -1cm)--(14.5cm, -1cm); path C ; C :=(12cm, -1cm)--(11cm, -1cm); path D ; D : =(4cm, -1cm)--(3cm, -1cm); drawarrow A; drawarrow B; drawarrow C ; drawarrow D ; \stopMPcode

Unless I uncomment D it gives the above error.

Mysterious issue

/Janne ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

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On 2/25/2020 6:34 PM, Jan-Erik Hägglöf wrote:

The following code gives an error, my goal is to draw 4 different arrows but only three functions successfully.

The error log shows

metapost        > initializing number mode 'scaled' metapost log    > metapost log    > loading metafun, including plain.mp version 1.004 for metafun iv and xl metapost log    > metapost log    > >> unknown path D metapost log    > ! Isolated expression. metapost log    > <to be read again> metapost log    >                    : metapost log    > <*> ... :=(12cm, -1cm)--(11cm, -1cm); path D ; D : metapost log    >  =(4cm, -1cm)--(3cm, -1cm)... metapost log    >

And the code is as follows

\startMPcode path A ; A :=(0cm, -1cm)--(1cm, -1cm); path B ; B :=(13.5cm, -1cm)--(14.5cm, -1cm); path C ; C :=(12cm, -1cm)--(11cm, -1cm); path D ; D : =(4cm, -1cm)--(3cm, -1cm);

^ remove the space

drawarrow A; drawarrow B; drawarrow C ; drawarrow D ; \stopMPcode

Unless I uncomment D it gives the above error.

Mysterious issue

/Janne

___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________

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