Sunday, December 28, 2014

How to create an image map in Dreamweaver?

             An image map is a device that allows you to insert links to multiple files within a single image.
With an image selected, you see four image map tools in the property bar(with expanded). These tools are used to define image map hotspots. Arrow tool is used fro selecting or moving the hotspots and remaining tools are used fro creating rectangular circular and polygonal hotspots within the image.

Image properties,computertextbook
Inserting rollover Image

1.                  Insert required image into the webpage.
2.                  Give required map name for as whole image in the Map Name text box.
3.                  Click on one of the required hotspot tool and define an area.
4.                  With a newly drawn hotspot selected, type a URL in the Link Box or choose required linked page by using Browse button. You can also link a hotspot to a named anchor by inserting a hash (#) button followed by the anchor name.
5.                  Enter alternative text for the hotspot in the Alt text box.
6.                  Set all of the image properties for the image map as an ordinary image.
Note: The image must be selected to get the image properties properly. However you can use the hotspots from the common Panel – Image sub category.

Creating a rollover image
            Rollover is an mage that, when viewed in a browser, changes when the pointer moves across it. A rollover actually consists of two images: the primary image (the image displayed when the page first loads) and a secondary image( the image that appears when the pointer moves over the primary image). Both images in a rollover should be the same size; if the images are not the same size, Dreamweaver automatically resizes the second image to match the properties of the first image.
            You cannot see the effect of a rollover image in the Dreamweaver Document window. To see the rollover effect, pres F12 to preview the page in browser, then roll the pointer over the image.

To create a rollover:
1.                  In the document window, place the insertion point where you want the rollover to appear.
2.                  Insert the rollover using one of these methods:
·                    In the Insert bar, select Common, then click the Rollover Image icon.
·                    Choose Insert > Interactive Images > Rollover Image.
Then Insert Rollover Image dialog box appears.

inserting rollover image

3.                  In the Image Name text box, type a name for the rollover.
4.                  In the Original Image text box, click Browse and select the image you want displayed when the page loads, or enter the image file’s path in the text box.
5.                  In the Rollover Image text box click Brows and select the image you want displayed when the pointer rolls over the original image, or enter the image file’s path in the text box.
6.                  If you want the images preloaded in the browser’s cache so no delay occurs when the user rolls the pointer over the image, select the Preload Images option,
7.                  In Alternate Text, enter text to describe the image for viewers using a text-only browser. (optional)
8.                  In the when clicked Go to URL text box, click Browse and select the file, or type the path to the file that you8 want to open when a user clicks the rollover image.
Note: If you don’t set a link for the image, Dreamweaver insets a null link (#) in the HTML source code to which the rollover behavior is attached. If you remove the null link. The rollover image will no longer work.
9.                  Click OK to close the Insert Rollover Image dialog box.
10.              Choose file > Preview in Browser or press F12.
11.              In the browser, move the pointer over the original image.