Hi Katharina
I agree with Philippe, but, maybe you need not to have a composite
element, but just the graphical fusion of your rect.
what about using filters to simulate one object?
Say :
<filter id='Filtre_Contour' filterUnits='objectBoundingBox' x='-10%'
y='-10%' width='150%' height='150%'>
<feMorphology in='SourceAlpha' result='morphedAlpha' radius='0.2%'
operator='dilate'/>
<feComposite in='SourceGraphic' in2='morphedAlpha' operator='over'/>
</filter>
<g id="mygroup" onclick="myOnclickFunction(evt)"
filter='url(#Filtre_Contour)' fill="none"/>
<polyline points="90,90 110,90 110,510 90,510 90,90"
filter="url:(#compose)" />
<polyline points="90,490 90,510 710,510 710,490 90,490" />
<polyline points="690,510 710,510 710,90 690,90 690,510" />
<polyline points="710,90 710,110 90,110 90,90 710,90" />
</g>
Hope it helps
J�r�me
Philippe Lhoste wrote:
>tamsvg wrote:
>
>
>>I've paint 4 rectangles (but I did it with polylines!)The 4
>>rectangles are overlapping each other. How can I blend them, so that
>>it looks like one element?
>>
>>Here's my code:
>>
>><?xml version="1.0" encoding='ISO-8859-1' ?>
>>
>><svg width="800" height="800" xmlns="http://www.w3.org/2000/svg";>
>>
>> <polyline points="90,90 110,90 110,510 90,510 90,90" stroke-
>>width="1" fill="none" stroke="black" filter="url:(#compose)" />
>> <polyline points="90,490 90,510 710,510 710,490 90,490" stroke-
>>width="1" fill="none" stroke="black" />
>> <polyline points="690,510 710,510 710,90 690,90 690,510" stroke-
>>width="1" fill="none" stroke="black" />
>> <polyline points="710,90 710,110 90,110 90,90 710,90" stroke-
>>width="1" fill="none" stroke="black" />
>></svg>
>>
>>Can anybody help me?
>>Katharina
>>
>>
>
>I believe that you have to do the maths yourself, ie. SVG 1.1 has
>nothing to join/blend/merge/solder shapes.
>SVG 1.2 will have this feature.
>
>As always in this kind of question, I point to Kevin Lindsey site
><http://www.kevlindev.com/geometry/index.htm> which has a comprehensive
>set of JavaScript routines for geometry maths applied to SVG.
>
>Well, I am not sure you will find the solution of your problem here, but
>the maths for rectangle intersections are quite simple, I think.
>
>If really you are lost, I will try and do the maths, it is an
>interesting problem.
>
>Note: Since you are making closed shapes, maybe you can specify them
>with polygon, with fill="none". This avoid to repeat the initial point
>as last point.
>
>
>
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