Re: dvipng error HELP

[Jan-Åke Larsson]

Dear Neal,

I remember now: "Black" and "White" are defined, hard coded in the program. Use that.

/JÅ

On fre, 2021-06-04 at 11:51 +0000, Jan-Åke Larsson wrote:

Dear Neal,

The color 'white' is not defined unless your dvi loads a color package.

Enclose your verbatim color spec in quotes to make one argument to dvipng, otherwise it will read the color as 'rgb'. For example

./dvipng -fg 'rgb 1.0 1.0 1.0' test_dvipng.dvi

Best regards
Jan-Åke

On fre, 2021-05-07 at 00:16 +0000, Neal Mayer wrote:

Dear Sirs,

 

I just downloaded the MiKTeX package for my Windows 10 computer. I have created a .tex file and compiled it with the command line “latex ex.tex”. That worked just fine.

 

I then wanted to convert that to a .png so I used the command “dvipng -bg Transparent -fg white ex.dvi"

 

I received this error message – “dvipng warning: unimplemented color specification 'white' [1 <raw PostScriptdvipng warning: No image output from inclusion of raw PostScript >]”

 

I am not sure I am concerned about the PostScript warning; but what has be concerned is the “unimplemented color specification” warning.

 

I tried “-fg white”, “-fg rgb 1.0 1.0 1.0”, “-fg cmy 1.0 1.0 1.0”, etc. No color specifications work. I have read the documentation including the section on color and found examples given in the documentation; but nothing works.

 

My guess is there is something missing from the MiKTeX package installation; but I have no idea what or how to fix it.

 

Can you help? Please.

 

Thank you very much,

Neal Mayer

Townsville, Queensland, Australia

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