169 lines
5 KiB
HTML
169 lines
5 KiB
HTML
<HTML>
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<BODY bgcolor=ffffff>
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<P>
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<TABLE width=100% cellspacing=0 cellpadding=0>
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<TR>
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<TD>
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<FONT size=-1><B>CalHTMLPane v2.0 Guide</B></FONT>
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</TD>
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<TD align=right>
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<FONT size=-1><B>Example Tag Usage</B></FONT>
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</TD>
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</TR>
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</TABLE>
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<HR width=100% size=1 color=black>
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<P>
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<FONT size=+1><B>4: Images</B></FONT>
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<P>
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<BLOCKQUOTE>
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<P>
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<B>Tag: MAP</B><BR>
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<B>Tag:AREA</B><BR>
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<B>Attr: usemap</B>
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<P>
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<TABLE border width=100% cellpadding=6 align=center>
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<TR>
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<TD>
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<B>Synopsis:</B><BR>
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The CalHTMLPane supports the rect, circle and poly shapes within the
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AREA tag.
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<P>Coords can be expressed in absolute or percentage terms.
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</TD>
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</TR>
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<TR>
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<TD>
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<B>Example 1:</B>
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<P>
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<table align=center bgcolor=ffffdd cellspacing=0 cellpadding=4 rules=none bordercolor=black frame=border>
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<tr>
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<td><FONT color=navy>
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<P align=center><BR>
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<IMG src="images/map.gif" usemap="#test" width=200 height=100><BR>
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<MAP name=test><BR>
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<AREA shape="rect" coords="25,25,55,85" href="maprect.html" target=myiframe2><BR>
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<AREA shape="circle" coords="100,50,15" href="mapcircle.html" target=myiframe2><BR>
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<AREA shape="poly" coords=150,25,125,70,175,70 href="maptriangle.html" target=myiframe2><BR>
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</MAP><BR>
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<P align=center><BR>
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<TABLE frame=void rules=all cellspacing=0 cellpadding=0><BR>
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<TR><TD bordercolor=black><BR>
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<IFRAME frameborder=0 scrolling=no name="myiframe2" width=300 height=100></IFRAME><BR>
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</TD></TR><BR>
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</TABLE><BR>
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</td>
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</tr>
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</table>
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<P>
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</TR>
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</TD>
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<TR>
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<TD bgcolor=papayawhip>
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<B>Rendering:</B>
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<BR>
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<P align=center>
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<IMG src="images/map.gif" usemap="#test" width=200 height=100>
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<MAP name=test>
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<AREA shape="rect" coords="25,25,55,85" href="maprect.html" target=myiframe2>
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<AREA shape="circle" coords="100,50,15" href="mapcircle.html" target=myiframe2>
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<AREA shape="poly" coords=150,25,125,70,175,70 href="maptriangle.html" target=myiframe2>
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</MAP>
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<P align=center>
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<TABLE frame=void rules=all cellspacing=0 cellpadding=0>
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<TR><TD bordercolor=black>
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<IFRAME frameborder=0 scrolling=no name="myiframe2" width=300 height=100></IFRAME>
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</TD></TR>
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</TABLE>
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<BR>
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</TD>
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</TR>
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<TR>
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<TD>
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<B>Example 2:</B><BR>
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In the first example we used the actual size of the image (200 x 100 pixels) and used
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the real coords of the shapes within that image. If we placed the image in
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a document at a different size (say 250 x 125 pixels) the imagemap would no
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longer work correctly. However, by using percentage instead of absolute coordinates we can place
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the image at any size within our document, providing its aspect ratio is
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maintained.
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<P>Take the rectangle as an example. You can see that its coords in the
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200 x 100 image are 25, 25, 55, 85. This is equivalent to 12.5%, 25%, 27.5%, 85%.
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We can't use fractions so we enter these coords into the map as:
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<P align=center>coords="12%,25%,27%,85%"
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<P>The percentage coords are therefore slightly inexact, but this is not
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normally much of a problem.
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<P>Here's the whole example using percentage coords, demonstrating that two
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completely different image sizes can use the same map:
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<P>
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<table align=center bgcolor=ffffdd cellspacing=0 cellpadding=4 rules=none bordercolor=black frame=border>
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<tr>
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<td><FONT color=navy>
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<P align=center><BR>
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<IMG src="images/map.gif" usemap="#test2" width=300 height=150><BR>
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<IMG src="images/map.gif" usemap="#test2" width=150 height=75><BR>
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<MAP name=test2><BR>
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<AREA shape="rect" coords="12%,25%,27%,85%" href="maprect.html" target=myiframe3><BR>
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<AREA shape="circle" coords="50%,50%,7%" href="mapcircle.html" target=myiframe3><BR>
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<AREA shape="poly" coords=75%,25%,62%,70%,87%,70% href="maptriangle.html" target=myiframe3><BR>
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</MAP><BR>
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<P align=center><BR>
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<TABLE frame=void rules=all cellspacing=0 cellpadding=0><BR>
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<TR><TD bordercolor=black><BR>
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<IFRAME frameborder=0 scrolling=no name="myiframe3" width=300 height=100></IFRAME><BR>
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</TD></TR><BR>
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</TABLE><BR>
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</td>
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</tr>
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</table>
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<P>
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</TR>
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</TD>
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<TR>
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<TD bgcolor=papayawhip>
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<B>Rendering:</B>
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<BR>
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<P align=center>
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<IMG src="images/map.gif" usemap="#test2" width=300 height=150>
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<IMG src="images/map.gif" usemap="#test2" width=150 height=75>
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<MAP name=test2>
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<AREA shape="rect" coords="12%,25%,27%,85%" href="maprect.html" target=myiframe3>
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<AREA shape="circle" coords="50%,50%,7%" href="mapcircle.html" target=myiframe3>
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<AREA shape="poly" coords=75%,25%,62%,70%,87%,70% href="maptriangle.html" target=myiframe3>
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</MAP>
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<P align=center>
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<TABLE frame=void rules=all cellspacing=0 cellpadding=0>
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<TR><TD bordercolor=black>
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<IFRAME frameborder=0 scrolling=no name="myiframe3" width=300 height=100></IFRAME>
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</TD></TR>
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</TABLE>
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<BR>
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</TD>
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</TR>
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</TABLE>
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</BLOCKQUOTE>
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<TABLE align=center width=50%>
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<TR>
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<TD align=center>
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<A href="../CalGuide.html">Guide Index</A> |
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<A href="../javadoc/overview-tree.html"> JavaDoc</A> |
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<A href="guide-Frames-iframe.html"> Previous</A> |
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<A href="guide-Misc-colornames.html"> Next</A>
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</TD>
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</TR>
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</TABLE>
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</BODY>
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</HTML>
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