TImage rendered in black in batch, not in interactive mode

ROOT
1

Hello rooters,

I have a problem with one of my root macro where I draw a 2D histogram and its x and y projections. In order to have the y projection in the right direction (see figure 1), I create a TImage of this y projection histogram that I rotate with the command “img->Flip(90);” (see example.cpp). Then, I save the image with the .ps format.

My macro works in interactive mode (see figure 1) but in batch mode (-b) I have a black rectangle instead of my rotated image (see figure 2). If I remove the “img->Flip(90);” command, the black rectangle disappears (see figure 3).

I use:
ROOT 5.34/08 (v5-34-08@v5-34-08, Jun 05 2013, on linuxx8664gcc)
CINT/ROOT C/C++ Interpreter version 5.18.00

could you help me?

best regards.
figure3.ps (168 KB)
figure2.ps (113 KB)
figure1.ps (155 KB)
example.cpp (1.39 KB)

2

I am looking.

3

When I run you macro in interactive mode I get the attached picture.
It is what you want ?

c.png696×672 14.9 KB

4

Sorry, I forgot to remove the comment in my macro at the line 60. Remove the “//”.
I want to get a result like the figure 1.

5

Yes there is a problem in batch mode. I see the same with png.
I have no answer yet, unless using interactive mode.

6

Hello Mr. Couet,

Do you have time to take a look at my problem in batch mode?

7

I asked the author of this code to look at it. No progress for me yet.
The only way right now is to not run in batch mode.

8

Thank you for the news and for your help.