What is the best way to create an image in Matlab?

Good Morning,

I have created a Matlab script that creates an image in .bmp format of a single line diagram power network. Although it does what it is asked to do, it is not an efficient solution. This because it creates matrices of pixels, which are very heavy for the computer CPU and memory. Adding to this, the generated image is low on quality and not possible to manipulate it's objects.

Summarizing, I want to create a final image file that:

• doesn't consume too much of Matlabs memory;
• doesn't create a large sized file (e.g. < 10 MB);
• offers the possibility of manipulating the objects on my file (similar to what is done in AUTOCAD programs);
• and avoids the use of third party programs.

The question is, what are my options here? I have read about vector graphing (*.eps), but know little about it. Any guides or tutorials would be very useful!

Thanks in Advance!!