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html5_05 svg extension, geo-location, drag-and-drop

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1, SVG drawing summary:
① method One: SVG file already available,
Method Two:<body><svg></svg></body>
② Draw Rectangle: <rect x= "" y= "" width= "" height= "" ></rect>
③ Draw Circle: <circle cx= "" cy= "" r= "" ></circle>
④ Draw ellipse: <ellipse cx= "" cy= "" rx= "" ry= "" ></ellipse>
⑤ Draw line: <line x1= "" y1= "" x2= "" y2= "" ></line>
⑥ Draw polyline: <polyline points= "x1,y1 x2,y2 ..." ></polyline>
⑦ drawing polygons: <polygon points= "x1,y1 x2,y2 ..." ></polygon>
⑧ drawing text: <text x= "" y= "" font-size= "" >XXX</text>
⑨ drawing Image: <image xlink:href= "" ></image>
⑩ using gradients:
LinearGradient: linear gradient;
<svg>
<defs>
<lineargradient id= "G1" x1= "" y1= "" x2= "" y2= "" >
<stop offset= "0" stop-color= "stop-opacity=" ">
</linearGradient>
</defs>
<rect fill= "url (#g1)" stroke= "url (#g1)" ></rect>
</svg>
2. SVG filter (Filter)--pixel processing of the image:
Fegaussianblur: Gaussian blur filter;
<defs>
<filter id= "F1" >
<fegaussianblur stddeviation= "5" ></feGaussianBlur>
</filter>
<rect filter= "url (#f1)" ></rect>
</defs>
3. Third-party drawing tool Library--two.js:
<div id= "Container" ></div>
<script src= "Js/two.js" ></script>
<script>
var two=new ({}). AppendTo (container);
Two.makecircle (...);
Two.makerectangle (...);
Two.update ();
Two.play ();
</script>
4, HTML5 new features--geo-positioning:
①window.navigator.geolocation: Get the current location of your browser;
Longitude--longitude; dimension--latitude; elevation--altitude; speed--speed;
② mobile phone using built-in GPS module or signal base station, the PC uses IP address reverse resolution;
③ Browser geo-location involves personal privacy, asking permission:
navigator.geolocation{
getcurrentposition:fn,//Get location information once
watchposition:fn,//periodic monitoring of location information
clearwatch:fn//clearing the location monitor
}
④ using:
Navigator.geolocation.getCurrentPosition (
Function (POS) {//Get successful
Console.log (pos.coords.longtude);//Longitude
Console.log (pos.coords.latitude);//Dimension
Console.log (pos.coords.altitude);//elevation
Console.log (pos.coords.speed);//Speed
}
function (ERR) {//Get failed
Console.log (Err.code);
Console.log (Err.message);
}
);
5, call Baidu Map API:
View using JS call Baidu Map Description document--http://lbsyun.baidu.com/index.php?title=jspopular
6. New HTML feature-drag-and-Drop API (Drag & Drop):
① the object that is being dragged-the source object, which triggers the event:
ondragstart--drag to start; ondrag--drag; ondragend--drag to end;
② can drag an object that enters and lets go--the target object, which triggers the event:
ondragenter--dragged into the top, ondragover--dragged above hover; ondrop--loosened; ondragleave--dragged away;
③ondragover events Follow the default behavior is OnDragLeave, that is, ondragover after the default trigger OnDragLeave, the use of the browser should be blocked this default behavior;

html5_05 svg extension, geo-location, drag-and-drop

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Related Keywords:
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