【導(dǎo)讀】論文題目：基于VRP的交互漫游系統(tǒng)研究

　　

【正文】 rough the use of borders Text ? sans serif fonts with a minimum of 14 point ? avoidance of italics, underlining, and words in all block letters ? sufficient weight of font in text and titles ? simple but descriptive sentences ? options for the user to enlarge text ? avoidance of scrolling text This is sans serif font with sufficient weight and contrast. Information presentation ? short sentences with simple words ? short paragraphs that capture a reader’ s attention ? sentences presented horizontally ? avoidance of too much information, causing clutter Colour ? high contrast (light/dark colours) for user appeal and background and foreground distinction ? consistent colours that do not distract from the tour ? avoidance of plementary colours together: red and green, blue and orange and purple and yellow Additional features ? audio descriptions for blind and partially sighted people ? detailed narrations of what the museum itself is like (surroundings, lighting, smells, and so on) ? in depth descriptions of paintings, artefacts and sensory qualities ? the option of BSL for deaf visitors and users of BSL Audio descriptions Audio descriptions are a helpful feature for blind and partially sighted users, as they can provide interpretation from tone of voice as pared to screen reading software. Although audio descriptions are not required to meet basic web accessibly requirements, it is remended that they be included if the budget allows for it. Creating audio descriptions is more involved than having a narrator reading text that would normally be on the screen. The narrator needs to not only discuss a detailed description of the artefacts, but also the significance of the exhibit. It is important to keep in mind that some users may not be able to see the image clearly. Therefore, it is helpful to find a knowledgeable writer who can convey an accurate sense of space with detailed descriptions. This could be someone working in the museum that has experience with descriptive writing and could assist with the development of audio descriptions. For detailed explanations of the different aspects of creating an audio description consult the RNIB’ s See It Right pack and Talking Images Guide or Vocaleyes, a charity which provides audio description services. More information on Vocaleyes can be found at their website: Here are some quick remendations to consider when implementing audio descriptions: ? using a writer with knowledge of description techniques ? reading descriptions with a clear, pleasant and varied voice ? using tone that reflects the mood of the work ? implementing professional recording of the audio description Outside help or do it yourself? Once the content for the virtual tour has been identified, the next step is to assemble it into a final product. First, it is helpful to decide the method for the technical implementation of the tour – with an outside consultant or with an internal web designer. This guide by no means provides the technical knowledge required for web design. In the Technology requirements section, there is a brief description of some software tools for web design。 however they still require significant background knowledge in terms of the web itself. Remendation Unless the budget absolutely prohibits it, or sufficient web design knowledge is available, the best option for a museum is to find a web designer. The designer would have to be willing to start with the content that a museum identified through the use of this guide, and assemble it into web form to be used in a virtual tour. A good place to start is with the same web designer a museum used for their current website, if they have one. Otherwise, the British Standards Institution PAS 78:20xx Guide to good practice in missioning accessible websites provides some remendations on choosing a web designer, particularly for keeping accessibility in mind. Technology requirements In order for the museum to plete the website themselves, basic web authoring and photo manipulation tools are required. Although the choice is up to the museum itself, there is a wide range of tools available in terms of both capability and price. The industry standard tools are Adobe Dreamweaver (formally Macromedia Dreamweaver) for web authoring and Adobe Photoshop for photo manipulation. A reduced price version of Adobe Photoshop, called Adobe Photoshop Elements, is also available and should be sufficient for the image manipulation that is necessary for basic web development. Adobe GoLive and Microsoft FrontPage are also popular web authoring tools. If the museum desires to take the photographs themselves, a digital camera is remended, although using a film camera and scanning is also an option. In general, digital cameras are specified in terms of their image resolution, in mega pixels, and for web photos a camera generating at least four mega pixel images should produce photos of acceptable quality. If the museum wishes to use the camera for printed materials, the investment in a higher quality camera is remended. Important steps Once the content to include in the virtual tour has been identified and the method for creating the tour has been chosen, the next step is to begin the process of virtual tour implementation. There are two primary parts to this: ? assembling the content (taking the photographs) ? implementing the tour (authoring the webpage) Photographs – If the museum has pleted or is in the process of pleting a digitisation project, this would be an excellent source of high quality pictures that are already available. Otherwise, the museum must obtain the photographs o