Important Principle to follow to create a figure

Figures are defined as any visual element that is not a table. Line graphs, pie charts, photographs, sketches, schematics are all types of figures. In technical documents, a table or a figure—not both—are used to present data. Tables and figures should be understandable to the reader without reference to the text.

Visual elements such as graphs, charts, tables, photographs, diagrams, and maps capture your readers’ attention and help them to understand your ideas more fully. They are like illustrations that help tell the story. These visuals help to augment your written ideas and simplify complicated textual descriptions. They can help the reader understand a complicated process or visualize trends in the data. The key concept to remember here is that visuals clarify, illustrate, and augment your written text; they are not a replacement for written text. The old adage, “a picture is worth a thousand words” does not hold true in technical writing, but adding visuals may save you a hundred words or so of additional explanation and clarification. If you have visual elements in your document, they must be based on and supplement your written content. Throwing in “gratuitous graphics” just to decorate or take up space can confuse your reader.

It is important to choose the right kind of visual to convey the story you want your reader to understand. If visuals are poorly chosen or poorly designed for the task, they can actually confuse the reader and have negative consequences.