gnuplot: map view with black and white for 0/1 in the 3rd column


 
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Old 03-17-2011
gnuplot: map view with black and white for 0/1 in the 3rd column

Hi,

I am using gnuplot to plot a 3D plot with "set view map".
My data looks like
======
X Y Z
======
100 200 0
200 300 1
200 200 0
.
.
.

The third column only has either 0 or 1. How do I generate a map view plot that will have black (white) for 0 (1)?

Thanks,
Gaurab
 
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PS_LINETO(3)								 1							      PS_LINETO(3)

ps_lineto - Draws a line

SYNOPSIS
bool ps_lineto (resource $psdoc, float $x, float $y) DESCRIPTION
Adds a straight line from the current point to the given coordinates to the current path. Use ps_moveto(3) to set the starting point of the line. PARAMETERS
o $psdoc - Resource identifier of the postscript file as returned by ps_new(3). o $x - x-coordinate of the end point of the line. o $y - y-coordinate of the end point of the line. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 Drawing a rectangle <?php $ps = ps_new(); if (!ps_open_file($ps, "rectangle.ps")) { print "Cannot open PostScript file "; exit; } ps_set_info($ps, "Creator", "rectangle.php"); ps_set_info($ps, "Author", "Uwe Steinmann"); ps_set_info($ps, "Title", "Lineto example"); ps_begin_page($ps, 596, 842); ps_moveto($ps, 100, 100); ps_lineto($ps, 100, 200); ps_lineto($ps, 200, 200); ps_lineto($ps, 200, 100); ps_lineto($ps, 100, 100); ps_stroke($ps); ps_end_page($ps); ps_delete($ps); ?> SEE ALSO
ps_moveto(3). PHP Documentation Group PS_LINETO(3)