Rotate a Photo on Canvas Using HTML 5

Introduction

This is a simple application for beginners that help show how to rotate a photo on canvas using HTML 5 and CSS tools. We know that HTML 5 is the advanced version of HTML. Basically HTML 5 can be used to develop 3D applications. This article is intended to help with the use of HTML5 tools to develop a photo on canvas application. CSS is the acronym for Cascading Style Sheet that is used for design. CSS defines how HTML elements are to be displayed. Canvas is an important tag of an HTML 5 that is used to show the image and text in an HTML 5 application. I hope this article helps to show how to rotate a photo on canvas using HTML 5 and CSS tools.

Step 1: First Open an HTML editor such as Notepad.

Open start->Notepad.
The name of the editor is "canvas".

Step 2: Create a Folder on a desktop.

Right-click on desktop->new->Folder.
The name of the folder is "photo".

Step 3: Open Visual Studio.

Go to file -> New->Projects.
Create an ASP. NET Web Application.
Name of "Tom.aspx".

Step 4: Add an HTML file to your web application.

Right-click on Solution Explorer.
Add->add new item->HTML form.
The Name of the HTML form is "Image.html".

Step 5: Add an image folder on a Tom canvas application.

Right-click of Solution explorer.
add->add folder.
The name of the folder is "image".

Step 6: Add some js file in an application.

Code

< script src = "Scripts/canvas.js"
type = "text/javascript" > < /script> <
script src = "Scripts/canvas2.js"
type = "text/javascript" > < /script>

Step 7: Now we have set a style of canvas curser properties that are background color, font-size, height, width and also set the properties of an image field.

Code

<style type="text/css" media="screen">
can.resize-ne { cursor: ne-resize; }
can.resize-se { cursor: se-resize; }
can.resize-sw { cursor: sw-resize; }
can.resize-nw { cursor: nw-resize; }
can.move { cursor: move; }
can.default { cursor: default; }
img { display: block; visibility: hidden; position: absolute; top: -1000; left: -1000; }
input { margin-left: 20px; }
fieldset { width: 480px; float: left; }
.fieldset { width: 400px; float: left; }
#ft { background-color: #eee; height: 70px; width: 99%;top: 0; left: 0; }
#ft span { width: 100%; }
</style>

Step 8: In this step set a canvas length and add an image according to image id.

Code

can = new Canvas.Element();
can.init('canvid1', { width: rex.getViewportWidth() - 5, height: rex.getViewportHeight() - 5 });
img[img.length] = new Canvas.Img('img1', {});
img[img.length] = new Canvas.Img('img2', {});
img[img.length] = new Canvas.Img('img3', {});
img[img.length] = new Canvas.Img('img4', {});
img[img.length] = new Canvas.Img('img4', {});
can.addImage(img[0]);
can.addImage(img[1]);
can.addImage(img[2]);
can.setCanvasBackground(img[3]);
can.addImage(img[4]);
this.initEvents();
}