LabVIEW编程技术幻灯片.ppt

LabVIEW? Programming Techniques – The Good, the Bad, and the Ugly Greg McKaskle Senior Group Manager Fri Aug 18 10:15-11:30 a.m., 1:45-3:00 p.m. Ash (10A) Good, Bad, or Ugly? Good, Bad, or Ugly? Who are We to Judge? Industrial design degree? Graphic design degree? We are critics! We have experience with the real world We rely on familiar interfaces to guide us Our goal is to recognize our limits, to mimic and copy the professionals Agenda Examples (VIs, stereo, car, newspaper) Association Colors Tab control guidelines UI features in LabVIEW 6i Example 1 – What’s Wrong With It? First, Let’s Remove the Color Remove Text Labels Pack into a Tighter Grid Another Option Association Most important technique Idea is to separate and group logically Use: Color Borders Spacing Combination Association – Color Not the best technique for associating It is the most overused technique Strong, brute force approach Best used when spatial arrangement cannot be controlled Contrast is more important than color The red fox jumped over the lazy dog. Association – Borders Notice the one at the top of the slide? Used extensively in news media Can be a line, box, or transition in texture Match the border weight to other objects Association – Spacing Most effective technique Books, presentations, and computer keyboards rely on white space to associate Spacing defines a grid and separates items into groups Association – Combinations Combination Look at professional interfaces and learn individual techniques first Then learn how to combine them Real world examples – newspaper, stereo, keyboard, copying machine, toolbars Colors – How Much is Enough? Only two types of color Neutral colors (for coloring large objects) Highlight colors (for coloring small objects) Color Blind? Fonts – A Few Guidelines Use very few fonts on a panel Two or three fonts is probably the limit One is often the right number Vary the size, weight or boldness instead Use serif fonts for printed blocks of text Use non-se