science

Spatial navigation

Spatial navigation is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Spatial navigation rather than just read about it. In short: In computing, spatial navigation is the ability to navigate between focusable elements, such as hyperlinks and form controls, within a structured document or user interface according to the spatial location. This method is widely used in application software like computer games.

Key takeaways

Spatial navigation belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Spatial navigation to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Spatial navigation from memory before moving on to harder problems.

Reference excerpt

In computing, spatial navigation is the ability to navigate between focusable elements, such as hyperlinks and form controls, within a structured document or user interface according to the spatial location. This method is widely used in application software like computer games. In the past Web browsers have used tabbing navigation to change the focus within an interface, by pressing the tab key of a computer keyboard to focus on the next element (or ⇧ Shift+Tab ↹ to focus on the previous one). The order is based on that in the source document. For HTML without any style, this method usually works as the spatial location of the element is in the same order of the source document. However, with the introduction of style via presentational attributes or style sheets such as CSS, this type of navigation is being used less often. Spatial navigation uses the arrow keys (with one or more modifier key held) to navigate on the "2D plane" of the interface. For example, pressing the "up" arrow key will focus on the closest focusable element on the top (relative to the current element). In many cases, this could save many key presses. This accessibility feature is available in a number of applications, e.g. Vivaldi web browser. For Vivaldi users, this allows a faster way to "jump" to different areas in long web pages or articles without manually scrolling and scanning with their eyes. Some examples, as noted above, include the Tab ↹ key to jump to the next input field, but also the ⇧ Shift key with arrow keys (↑, ↓, →, ←) to jump to various links and text headers. Doug Turner (Mozilla), the Minimo lead developer, has created a couple of special Mozilla Firefox builds with this feature. Eventually, this may build as a default part of Firefox. Nightly builds of WebKit (the layout engine used by Apple Safari and Google Chrome, among others) now have support for spatial navigation. In games such navigation is represented by (for example) camera-relative movement.

See also Tabbing navigation Caret navigation Spatial file manager

References

External links Use Opera without a Mouse Spatial Navigation in Mozilla and for Google Chrome

Worked examples

Example 1 — a first encounter with Spatial navigation

Start with the simplest possible case. Write down what Spatial navigation claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Spatial navigation before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Spatial navigation ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Spatial navigation

In research: Spatial navigation appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Spatial navigation in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Spatial navigation is common in secondary-school and first-year university syllabi. It links to neighbouring topics User interface techniques, so understanding it makes those chapters shorter.
In everyday life: Look for Spatial navigation outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Spatial navigation in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Spatial navigation means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Spatial navigation out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Spatial navigation in simple terms?

Why does Spatial navigation matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Spatial navigation?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Spatial navigation.