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Html5 rounded corners

Source: Internet
Author: User
Tags linecap
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  1. <! DOCTYPE html PUBLIC "-// W3C // dtd xhtml 1.0 Strict // EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  2. <HtmlXmlns = "http://www.w3.org/1999/xhtml">
  3. <Head>
  4. <MetaHttp-equiv = "Content-Type" content = "text/html; charset = gb2312"/>
  5. <MetaHttp-equiv = "Content-Language" content = "zh-cn"/>
  6. <Title>Draw a rounded corner</Title>
  7. <ScriptType = "text/javascript" src = "jquery-1.4.min.js"> </Script>
  8. <ScriptType = "text/javascript"><! --
  10. $ (Function (){
  11. Var elem = $ ("# myCanvas") [0];
  12. If (! Elem |! Elem. getContext ){
  13. Return;
  14. }
  16. // CanvasRenderingContext2D
  17. Var ctx = elem. getContext ('2d ');
  18. Ctx. fillStyle = '# 00f ';
  19. CTX. strokestyle = '#0f0 ';
  20. CTX. linewidth = 10;
  21. CTX. globalalpha = 1;
  22. // Linecap specifies how to draw the end of a line. The value of round specifies that the line segment should carry a semi-circular line cap, and the diameter of the half circle is equal to the width of the line segment, in addition, the line segment expands half of the width of the line segment beyond the endpoint.
  23. CTX. linecap = "round ";
  24. // The linejoin attribute describes how to draw the intersection point. The value "round" indicates that the outer edge of the specified point should join a filled arc, and the diameter of this arc is equal to the width of the line segment. "
  25. CTX. linejoin = "round ";
  27. Ctx. beginPath ();
  28. Ctx. moveTo (10, 10 );
  29. Ctx. lineTo (200, 10 );
  30. Ctx. lineTo (200,200 );
  31. Ctx. lineTo (10,200 );
  32. Ctx. lineTo (10, 10 );
  33. // Ctx. fill ();
  34. Ctx. stroke ();
  35. Ctx. closePath ();
  36. });
  37. //--> </Script>
  38. </Head>
  39. <Body>
  40. <CanvasId = "myCanvas" width = "300" height = "300">Your browser does not support HTML5 Elements</Canvas>
  41. </Body>
  42. </Html>

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Related Keywords:
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