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From: Otared Kavian <otared@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Metafun: how to draw a straight line past the end points
Date: Wed, 9 Dec 2020 16:57:35 +0100	[thread overview]
Message-ID: <006445B7-7C42-464A-BE91-34393DA44343@gmail.com> (raw)

Hi,

I have a silly question: given two points in the plane
	z1 = (1cm,3cm) ;
	z2 = (5cm, 9cm) ;
the command
	draw z1 -- z2 withpen pencircle scaled .5pt ;
draws the line segment joining z1 and z2. How could I draw the line segment which goes a little further (say 1cm) than both the end points of this segment (that is in this example, a point before z1 and a point after z2 on the straight line) .
Indeed it is possible to write the equation of the line and then compute by hand the coordinates of the new end points, but I think there is a simpler way in Metafun to do this.

Thanks for any help: Otared


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             reply	other threads:[~2020-12-09 15:57 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-09 15:57 Otared Kavian [this message]
2020-12-09 16:19 ` Fabrice L
2020-12-09 17:11   ` Otared Kavian
2020-12-09 17:37     ` Aditya Mahajan
2020-12-09 19:34       ` Otared Kavian
2020-12-09 20:38         ` Aditya Mahajan
2020-12-09 21:19           ` Otared Kavian
2020-12-09 22:01           ` Hans Hagen

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