Ubuntu 16.04 and do not look for something like Graph_Easy which parses input, instead I look for some offline, free, WYSIWYG software that does tasks like what asciiflow does. For example these features are necessary:
- drawing multiple type of shapes (lines, arrows, rectangles) by dragging
- changing zoom level of page for drawing more longer/wider graphs
- typing text
asciiflow provides a mean for resizing shapes, which is not necessary for me. Also it is better to be able to draw other shapes like circle. An open source software is appropriated.