JavaScript Tutorial/Dojo toolkit/Canvas Draw

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Create Ellipse

   <source lang="javascript">

<html> 

 <head>
   <script type="text/javascript">
     var djConfig = {
       baseScriptUri : "js/dojo/",
       parseOnLoad : true
     };
   </script>
   <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
   <script>
     dojo.require("dojox.gfx");
     function testIt() {
       var s = dojox.gfx.createSurface("my", 320, 240);
        s.createEllipse({ cx : 160, cy : 190, rx : 30, ry : 40 }).setFill([0, 255, 0, 0.5]);
     }
   </script>
 </head>
 <body onLoad="testIt();">

 </body>

</html></source>


Draw 3D ball

   <source lang="javascript">

<html> 

 <head>
   <script type="text/javascript">
     var djConfig = {
       baseScriptUri : "js/dojo/",
       parseOnLoad : true
     };
   </script>
   <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
   <script>
     dojo.require("dojox.gfx");
     function testIt() {
       var s = dojox.gfx.createSurface("my", 320, 240);
        s.createCircle({ cx : 265, cy : 120, r : 40}).setFill(dojo.mixin(
           { type : "radial", cx : 250, cy : 90},
           { colors: [
             { offset: 0,   color: [255, 0, 0, 0] },
             { offset: 0.5, color: "red" },
             { offset: 1,   color: [0, 0, 255, 0] }
           ]}
         ));
     }
   </script>
 </head>
 <body onLoad="testIt();">

 </body>

</html></source>


Draw line

   <source lang="javascript">

<html> 

 <head>
   <script type="text/javascript">
     var djConfig = {
       baseScriptUri : "js/dojo/",
       parseOnLoad : true
     };
   </script>
   <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
   <script>
     dojo.require("dojox.gfx");
     function testIt() {
       var s = dojox.gfx.createSurface("my", 320, 240);
       s.createLine({x1:10,y1:10, x2:310,y2:230}).setStroke({color : "#ff0000"});
     }
   </script>
 </head>
 <body onLoad="testIt();">

 </body>

</html></source>


Draw polygon

   <source lang="javascript">

<html> 

 <head>
   <script type="text/javascript">
     var djConfig = {
       baseScriptUri : "js/dojo/",
       parseOnLoad : true
     };
   </script>
   <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
   <script>
     dojo.require("dojox.gfx");
     function testIt() {
       var s = dojox.gfx.createSurface("my", 320, 240);
       s.createPolyline([ {x:160,y:15}, {x:10,y:5},{x:210,y:65}, {x:160,y:15} ]).setFill([255, 0, 0, 1]);
     }
   </script>
 </head>
 <body onLoad="testIt();">

 </body>

</html></source>


Draw rectangle

   <source lang="javascript">

<html> 

 <head>
   <script type="text/javascript">
     var djConfig = {
       baseScriptUri : "js/dojo/",
       parseOnLoad : true
     };
   </script>
   <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
   <script>
     dojo.require("dojox.gfx");
     function testIt() {
       var s = dojox.gfx.createSurface("my", 320, 240);
       s.createRect({ x : 15, y : 80, width : 60, height : 80}).setStroke({color : "red"});
     }
   </script>
 </head>
 <body onLoad="testIt();">

 </body>

</html></source>


Draw stroke

   <source lang="javascript">

<html> 

 <head>
   <script type="text/javascript">
     var djConfig = {
       baseScriptUri : "js/dojo/",
       parseOnLoad : true
     };
   </script>
   <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
   <script>
     dojo.require("dojox.gfx");
     function testIt() {
       var s = dojox.gfx.createSurface("my", 320, 240);
       var txt = s.createText({x: 90, y: 130, text: "Text"});
       txt.setFont({family : "Times", size : "20pt", weight : "bold"});
       txt.setFill("yellow");
       txt.setStroke("red");
     }
   </script>
 </head>
 <body onLoad="testIt();">

 </body>

</html></source>


Draw text

   <source lang="javascript">

<html> 

 <head>
   <script type="text/javascript">
     var djConfig = {
       baseScriptUri : "js/dojo/",
       parseOnLoad : true
     };
   </script>
   <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
   <script>
     dojo.require("dojox.gfx");
     function testIt() {
       var s = dojox.gfx.createSurface("my", 320, 240);
       var txt = s.createText({x: 90, y: 130, text: "Text"});
       txt.setFont({family : "Times", size : "20pt", weight : "bold"});
     
       txt.setStroke("black");
     }
   </script>
 </head>
 <body onLoad="testIt();">

 </body>

</html></source>


Fill text

   <source lang="javascript">

<html> 

 <head>
   <script type="text/javascript">
     var djConfig = {
       baseScriptUri : "js/dojo/",
       parseOnLoad : true
     };
   </script>
   <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
   <script>
     dojo.require("dojox.gfx");
     function testIt() {
       var s = dojox.gfx.createSurface("my", 320, 240);
       var txt = s.createText({x: 90, y: 130, text: "Text"});
       txt.setFont({family : "Times", size : "20pt", weight : "bold"});
       txt.setFill("yellow");
       txt.setStroke("red");
     }
   </script>
 </head>
 <body onLoad="testIt();">

 </body>

</html></source>


Shape rotation

   <source lang="javascript">

<html> 

 <head>
   <script type="text/javascript">
     var djConfig = {
       baseScriptUri : "js/dojo/",
       parseOnLoad : true
     };
   </script>
   <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script>
   <script>
     dojo.require("dojox.gfx");
     function testIt() {
       var s = dojox.gfx.createSurface("my", 320, 240);
       var t = s.createPolyline([ {x:160,y:15}, {x:110,y:65},{x:210,y:65}, {x:160,y:15} ]).setFill([0, 255, 0, 1]);
       
               
       window.setInterval(function() {
         t.applyTransform(dojox.gfx.matrix.rotategAt(5, 155, 50));
       }, 100);
     }
   </script>
 </head>
 <body onLoad="testIt();">

 </body>

</html></source>

Источник — «http://wbex.ru/index.php?title=JavaScript_Tutorial/Dojo_toolkit/Canvas_Draw&oldid=8563»