[Scilab-users] 4-D plots.

[Adrian Weeks]

Hello Samuel,

Thank you very much for your reply, this is exactly what I need.  Why re-invent the wheel when someone else has already done it.  Maybe it's time I updated to Scilab 6...

Thanks again,
Adrian.

Adrian Weeks.
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From: users <users-bounces at lists.scilab.org> On Behalf Of Samuel Gougeon
Sent: 25 January 2019 12:58
To: Users mailing list for Scilab <users at lists.scilab.org>
Subject: Re: [Scilab-users] 4-D plots.

Le 25/01/2019 à 11:01, Adrian Weeks a écrit :
Hello,

I want to plot a function of three independent variables ( v = f(x, y, z) ) so that I can visualize it.
Essentially, this requires a 4-D plot but I can do it by using param3d to give me three independent axes then representing the value of the function at each point by using the colour or size of the dot.
This all works nicely but the problem is the slowness of the plotting operation:

for i = 1: size(dots, 'r') do
                param3d(dots(i, 1), dots(i, 2), dots(i, 3));
                pl = gce();
                pl.line_mode = 'off';
                pl.mark_mode = 'on';
                pl.mark_size_unit = 'point';
                pl.mark_size = 10;                                                            // Using dot colour to display the dependent variable
                pl.mark_foreground = dots(i, 4);
//            pl.mark_size = dots(i, 4);                                               // Using dot size to display the dependent variable
//            pl.mark_foreground = size(cmap, 'r') - 1;
end

Is it possible to 'vectorize' this operation ?

Hello Adrian,

You may have a look to https://help.scilab.org/docs/6.0.1/en_US/scatter3.html<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fhelp.scilab.org%2Fdocs%2F6.0.1%2Fen_US%2Fscatter3.html&data=02%7C01%7C%7C6f31fd12b3ae49d2e67808d682c4e19d%7Cf0bdc1c951484f86ac40edd976e1814c%7C0%7C0%7C636840179457435675&sdata=92xYW4zGdXjwDUGv2pIERC1kwbElwCvi2CFz8PL9NLk%3D&reserved=0>

Regards
Samuel
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