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pdf:paintingapage [2015/04/02 14:57]
christian [How does text get onto a PDF page]
pdf:paintingapage [2016/02/24 17:49]
christian [Hello World - How text gets onto a page]
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-====== How does text get onto a PDF page ======+====== ​Hello World - How text gets onto a page ======
  
 A PDF page has a content stream (**''/​Contents''​**) containing a list of graphics operator with their parameters. The operators are sequentially executed and can set aspects of the **GraphicsState** or paint in the context of the current GraphicsState. A PDF page has a content stream (**''/​Contents''​**) containing a list of graphics operator with their parameters. The operators are sequentially executed and can set aspects of the **GraphicsState** or paint in the context of the current GraphicsState.
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     renderer showString: 'Hello World'​]].     renderer showString: 'Hello World'​]].
 </​code>​ </​code>​
-{{example01helloworld.pdf}} See the class method ''​example01HelloWorld''​ in class ''​Document''​.+{{demo01_HelloWorld.pdf}} See the class method ''​demo01_HelloWorld''​ in class ''​Document''​.
  
 You notice that I did not use the font ID **''/​F1''​** but the font directly (referenced as the global #​Helvetica). ''​renderer **setFont:​**''​ takes care of that and puts the font into the resources and assigns it to an internal name which is used in the content stream. This mechanism works for all resource types so that the programmer can always use the appropriate object directly and never needs to care about the internal IDs. You notice that I did not use the font ID **''/​F1''​** but the font directly (referenced as the global #​Helvetica). ''​renderer **setFont:​**''​ takes care of that and puts the font into the resources and assigns it to an internal name which is used in the content stream. This mechanism works for all resource types so that the programmer can always use the appropriate object directly and never needs to care about the internal IDs.
/var/www/virtual/code4hl/html/dokuwiki/data/pages/pdf/paintingapage.txt ยท Last modified: 2016/02/24 17:49 by christian