Introduction
In this article we are going to understand a topic related to the designing; the scenario for this is Linear Pointer changing various effects. In this part, you can select from various options and as you press the action button the pointer begins moving along dedicated points.
Here we will use some JavaScript and some styles along with the HTML code. Just go through the steps to see how to create this application.
Let's see how the linearpointer application can be created. To do so go through the following steps.
Step 1 : Open a HTML editor or Visual Studio.
- Go to Solution Explorer
- Right-click on the Application name
- Select Add-->add new item
- Now in the window that opens, select an HTML page or new Web form
- Rename it to LINEARPOINTER.aspx
Here two CSS files are used for design purposes; one is for the section div, named d1.css and the other d2.css for the whole body of the web page.
d1.css scripting
- body
- {
- background: #00688B;
- color: #fff;
- font: 300 100.1% "Helvetica Neue" , Helvetica, "Arial Unicode MS" , Arial, sans-serif;
- }
- #holder
- {
- height: 442px;
- left: 42%;
- margin: -240px 0 0 -320px;
- position: absolute;
- top: 57%;
- width: 842px;
- font-size: x-large;
- background-color: #008000;
- }
- #duplicate {
- bottom: 0;
- font: 300 .7em "Helvetica Neue", Helvetica, ;
- position: absolute;
- right: 1em;
- text-align: right;
- }
- #duplicate d {
- color: #fff;
- }
d2.css scripting
- body {
- background: #fff;
- color: #000;
- font: 100.1% "Comic Sans MS", Lucida, Verdana, sans-serif;
- }
- #holder {
- height: 480px;
- left: 50%;
- margin: 0 0 0 -320px;
- position: absolute;
- top: 0;
- width: 640px;
- }
- #duplicate {
- bottom: 0;
- font-size: .7em;
- position: absolute;
- right: 1em;
- text-align: right;
- }
Step 3: In this part, we need to work on some JavaScript. To fully understanding how the JavaScript works download the attached .rar file and run the linearpointer application.
The whole JavaScript looks as in the following.
- Color(function ()
- {
- var r = Color("holder"),
- choice = document.getElementById("choice"),
- choice1 = document.getElementById("choice1"),
- run = document.getElementById("execute"),
- set = r.set(r.circle(300, 200, 8), r.circle(200, 100, 8), r.circle(100, 200, 8), r.circle(200, 300, 8), r.circle(200, 200, 8)).attr({ stroke: "none", fill: "#666" }),
- c = r.circle(200, 200, 10).attr({ stroke: "#fff", "stroke-width": 4 }),
- fade = function (id)
- {
- return function ()
- {
- set[id].attr({ fill: "#fff", r: 12 }).animate({ fill: "#666", r: 8 }, 500);
- };
- };
- run.onclick = function ()
- {
- var ex = choice.value,
- ey = choice1.value;
- c.stop().animate({
- "20%": { cy: 200, easing: ey, callback: fade(0) },
- "40%": { cy: 100, easing: ey, callback: fade(1) },
- "60%": { cy: 200, easing: ey, callback: fade(2) },
- "80%": { cy: 300, easing: ey, callback: fade(3) },
- "100%": { cy: 200, easing: ey, callback: fade(4) }
- }, 5000).animate({
- "20%": { cx: 300, easing: ex },
- "40%": { cx: 200, easing: ex },
- "60%": { cx: 100, easing: ex },
- "80%": { cx: 200, easing: ex },
- "100%": { cx: 200, easing: ex }
- }, 5000);
- };
- });
Step 4 : In this section we are going to become familiar with the body part of HTML scripting. Replace this script from the body section of the LINEARPOINTER.aspx page. Here we pass a #holder in the div id that is defined in the d1.css file.
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