[Plplot-general] How to Get Memory Buffer of my plot

[Ricchetti, A. <And...@sn...>]

Hi to all,

 

I'm a new user of your library. I'm not sure if is the correct way to
ask a question, so sorry me if is not the right way.

 

I'm using your library on Linux.

I've build it using CMake and I've put the correct linker information on
my makefile in this way:

 

LDXXFLAGS = `pkg-config --libs cairo fontconfig freetype2 pango
pangocairo pangoft2 plplotd plplotd-c++` -lpixman-1 -lfreetype -lpng
-lexpat -lz -lm -L/usr/lib/nptl -lpthread -static -lplplotcxxd -lplplotd

 

And

 

CCFLAGS = -O0 -march=i686 -ggdb -Wall \

                        `pkg-config --cflags cairo pangocairo plplotd
plplotd-c++` \

                        $(DBGFLAG) -I$(main_dir) -I$(common_dir)
-I$(config_dir)

 

In this way all work correct.

 

I'd like to know how can I get the memory buffer of the working area. 

I'm using the library on an embedded pc and I'm using the frame buffer
(in a direct way with memcpy() ) to show image. At the moment for
plotting chart I have to generate a png, read it and put it on the
screen.

Is there a better way? 

I know that using cairo or pango cairo, with the function
cairo_image_surface_get_data() I'll get a memory buffer that I can put
on the screen. Is there a function or something else that give me the
memory buffer in your library?

 

Thanks a lot.

 

Best regards,

 

Andrea Ricchetti

 

 

Andrea Ricchetti

ElectronicDepartment

Software Engineer

 

Snap-on Equipment 

Via Prov. per Carpi, 33

42015 Correggio (RE) - ITALY

Tel: +39-0522 733411- Fax: +39-0522 733410

And...@sn...