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From: =?UTF-8?Q?J=c3=b6rg_Buchholz?= <bookwood4new@freenet.de>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: contour lines have points
Date: Wed, 1 Aug 2018 07:42:38 +0200
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On 31.07.2018 09:42, Karl Ratzsch wrote:
> Am 31.07.2018 um 07:05 schrieb Jörg Buchholz:
>> I would like to have points where the measuring point are, they are at
>> the surface not at the contour lines. 
>>
> 
> 
> But they aren't, those are the interpolated points from dgrid3d!

I think there is one scenario where the measuring points and the points
from dgrid3d are the same points. If the measuring points (X-coordinates
and Y-coordinates) are like a monotone grid and no option like splines
is used at the dgrid3d command.

So at my example the plot with and without

set dgrid3d 5,5
set contour base

is the same. But without the dgrid3d I must insert blank lines between
every data block.

Jörg