ngspice: colored poststript demo page

This page depends on a patch for ngspice that is located at sourceforge.

Update 2012-01-21

The patch is integrated in ngspice since several years, but there is a small difference to the syntax to my example:
You have to use set hcopypscolor=1 instead of set hcopypscolor=true

The color table from color2 to color17

The colors looks better inside gv (convert worsens the colors)

.ac simulation using rgb colors (syntax is defined in XQueryColor)

.ac plot using smith grid, white background and black forground color

The same with polar plot

transient plot after reseting all colors

unset hcopypscolor: now we have black and white again

sources: netlist

* Spice netlister for gnetlist
* Spice backend written by Bas Gieltjes
R15 18 13 1k
R14 17 18 1k
R13 16 17 1k
R12 15 16 1k
R11 11 15 1k
R18 14 0 1k
R17 12 14 1k
R16 13 12 1k
R10 10 11 1k
R9 9 10 1k
R8 8 9 1k
R7 7 8 1k
R6 6 7 1k
V1 2 0 dc 1 ac 2 pulse 0 5 100n 10n 10n 400n 800n
C5 6 0 1n
R5 5 6 1k
C4 5 0 1n
R4 4 5 1k
C3 4 0 1n
R3 3 4 1k
C2 3 0 1n
R2 1 3 1k
C1 1 0 1n
R1 2 1 1k
.END

sources: control file

RCRC-Filter
.control
** convert the gEDA schematic to the netlist
*	shell gnetlist -q -g spice RCRC.sch -o RCRC.net

	source RCRC.net
	set hcopydevtype=postscript
	set hcopypscolor=true

	op
	destroy all
	ac dec 100 1k 1000k
	tran 1ns 10000ns

	hardcopy html_1.ps 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
*	shell gv html_1.ps &
	shell convert html_1.ps html_1.png

	set color2=rgb:F/0/0
	set color3=rgb:F/3/3
	set color4=rgb:F/6/6
	set color5=rgb:F/9/9
	set color6=rgb:0/F/0
	set color7=rgb:3/F/3
	set color8=rgb:6/F/6
	set color9=rgb:9/F/9

	hardcopy html_2.ps ac.v(3) ac.v(4) ac.v(5) ac.v(6) ac.v(7) ac.v(8) ac.v(9) ac.v(10)
*	shell gv html_2.ps &
	shell convert html_2.ps html_2.png

	set color1=rgb:0/0/0
	set color0=rgb:f/f/f
	set hcopywidth=400
	set hcopyheight=400
	hardcopy html_3.ps ac.v(3) ac.v(4) ac.v(5) ac.v(6) smith
*	shell gv html_3.ps &
	shell convert html_3.ps html_3.png

	hardcopy html_4.ps ac.v(3) ac.v(4) ac.v(5) ac.v(6) polar
*	shell gv html_4.ps &
	shell convert html_4.ps html_4.png

	unset color0
	unset color1
	unset color2
	unset color3
	unset color4
	unset color5
	unset color6
	unset color7
	unset color8
	unset color9
	set hcopywidth=900
	set hcopyheight=400
	hardcopy html_5.ps tran.v(1) tran.v(3) tran.v(4) tran.v(5) tran.v(6)
*	shell gv html_5.ps &
	shell convert html_5.ps html_5.png

*** switch back to black and white
	unset hcopypscolor
	set hcopywidth=800
	set hcopyheight=300
	hardcopy html_6.ps ac.v(3) ac.v(4) ac.v(5) ac.v(6)
*	shell gv html_6.ps &
	shell convert html_6.ps html_6.png
	destroy all
.endc