![]() When TW encounters a reference to a GIF in an html file it asks for !InterGIF to convert them into equivalent sprites. The above behaviour is very convenient when using TW to view or edit webpages as it means that JPEGs and PNGs are kept in their compressed formats. PNGs are now displayed by TW and it treats them as if they are a ‘native’ format just like a sprite.If you are using RiscOS 3.60 or higher, the JPEG will normally be kept in JPEG format in the TW document and display will be handled by the operating system.The process is described in detail on the page devoted to ‘word’ import/export so here we need only make the following two main points: The process of importing JPEGs and PNGs found on webpages is essentially the same as when they are found in word documents. These aren’t really intended for export, but the sub-sections can be used to place header tags around text in exported html. An exception to this is that the html ‘header’ styles are treated as sections/subsections by TW rather than styles, so you find these via the Structures->Sections or ->Sub-sections menus. Most of the styles have names which will be fairly obvious to someone familiar with html – Hr for ‘horizontal rule’, Em for ‘emphasis’ (i.e. You can edit the styles in this stationery file to setup the appearance you require. When you drop an html file onto the TW icon bar icon this stationery file is loaded. When you load an html file, the presented styles that determine the document’s appearance are controlled by the stationery file, HTMLStyles, which is normally kept inside the TW application directory. This is useful if you want to read a page, or use text from it, without having to devote memory (or time) to the graphics. This currently imports the html but does not then attempt to find and load the graphics. The user simply drops intro/html on the TW icon bar icon and TW will do the rest.Īn alternative way to import a webpage is simply to drag the html file and drop it on a TW window. ![]() When importing the html file TW discovers the references to these files, finds them, and uses them to place the appropriate graphical images in the TW document it creates. TW will then import the file, read its contents, and attempt to load any graphics by following up the file names it contains.įor example, the file intro/html shown in the above filer window is accompanied by some GIF bitmap image files – back/gif, head/gif, next/gif, etc. To import a webpage, you simply drag the appropriate html file and drop it on the TW icon bar icon. This is of particular use for producing attractive webpages. TW 4.10 has also introduced an extended ability to control and set background colours. Exporting Sprites, DrawFiles, and Equations.Exporting HTML webpages (with graphics).For simplicity, I’ll use ‘TW’ to refer to TW/EW Pro throughout this page. This page explains the import/export process and shows how you can obtain the best results. Many of the common features of webpages are now recognised – including links. As a result it is likely to become very common in the future.įrom version 4.10 onwards, TW/EW ‘Pro’ can import and export html files which use all of the above filetypes. Although currently rarer than JPEGs and GIFs it combines the good points of them both, and adds a few useful features of its own. More recently, a new form of compressed graphic file – the PNG – has started to become popular. Each of these has become popular because they compress the picture information and cut down the required filesize. Most of the graphics on webpages are based on two types of bitmap file – JPEGs and GIFs. ![]() The instructions include any links to other pages, and the details of any other files that are required to place graphics on the page. The basis of this process is an html file (Hyper-Text Markup Language) which contains the text of the webpage along with a set of instructions. Webpages differ from most conventional document formats as their visible content is produced by a related set of interlinked files of various types. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |