Re: [Gnuplot-info] kdensity plot not filled with filledcurves y=0

[Grothausmann, R. Dr. <gro...@mh...>]

Just a note, that "above"/"below" seem not to get honoured for filled kdensity.

On 05/07/16 11:31, Grothausmann, Roman Dr. wrote:
> On 05/07/16 10:03, Grothausmann, Roman Dr. wrote:
>> On 04/07/16 20:17, Ethan Merritt wrote:
>> Understanding, that the work-around is not so suitable for SVGs as it changes
>> the way of plotting I couldn't resist taking a look into the code to find out
>> what is wrong in the first place. I came as far as getting the expected
>> behaviour if y= is specified when applying the changes given by the patch below.
>> However I'm not sufficiently confident in adjusting the code appropriately for
>> cases I'm not familiar with. My guess it that the if statement would need an
>> additional check for kdensity to call need_fill_border and plot_lines.
>
> As far as I understand: smooth_parameter = -1 by default. So possibly this could
> do the trick appropriately:
>
> --- /opt/compilation/gnuplot-5.0.3/src/graphics.c.orig	2016-07-05
> 09:49:40.886329514 +0200
> +++ /opt/compilation/gnuplot-5.0.3/src/graphics.c	2016-07-05 11:26:14.242687554
> +0200
> @@ -763,13 +763,14 @@
>    		plot_boxes(this_plot, Y_AXIS.term_zero);
>    		if (bar_layer == LAYER_FRONT)
>    		    plot_bars(this_plot);
>    		break;
>
>    	    case FILLEDCURVES:
> -		if (this_plot->filledcurves_options.closeto == FILLEDCURVES_ATY1
> +		if (this_plot->smooth_parameter < 0
> +		&&  this_plot->filledcurves_options.closeto == FILLEDCURVES_ATY1
>    		||  this_plot->filledcurves_options.closeto == FILLEDCURVES_ATY2
>    		||  this_plot->filledcurves_options.closeto == FILLEDCURVES_ATR
>    		||  this_plot->filledcurves_options.closeto == FILLEDCURVES_BETWEEN) {
>    		    plot_betweencurves(this_plot);
>    		} else {
>    		    plot_filledcurves(this_plot);
>
>
>

-- 
Dr. Roman Grothausmann

Tomographie und Digitale Bildverarbeitung
Tomography and Digital Image Analysis

Institut für Funktionelle und Angewandte Anatomie, OE 4120
Medizinische Hochschule Hannover
Carl-Neuberg-Str. 1
D-30625 Hannover

Tel. +49 511 532-2900