LineDraw produces a 2D image with line segments drawn on it.
It is a command line tool I developed to practice working with graphics in C++.
Any line segment in the plane can be specified by its endpoints (a, b) and (c, d).
LineDraw expects to receive text from standard input.
The text should contain one 4-tuple (a, b, c, d) for each line segment you want drawn, on a new line.
LineDraw will print the contents of a Portable PixMap image to standard ouput.
The image will contain the specified line segments.
Build from source using GCC by cloning this repo and running build.sh.
Then make LineDraw executable.
cd bin
chmod u+x LineDraw
Suppose you have mytriangle.txt like this:
(0, 0, 400, 0)
(400, 0, 400, 300)
(0, 0, 400, 300)
To take input then capture the output of LineDraw in a PPM file you can do:
cat mytriangle.txt | LineDraw > mytriangle.ppm
and then the image can be viewed with any program that can display ppm files e.g. feh.
Alternatively, the PPM file can easily be converted to your preferred format with a tool like ImageMagick.
