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79 bytes added ,  22:08, 6 June 2020
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< [[Layout]] | [[Columns]] | [[Overlays]] | [[Logos]] | [[Layers]] >
 
Collectors are an alternative to overlays that can be used to build-up composite objects.
[[Layers]], on the other hand, are used to define whole pages.
{\framed{4}}
\startTEXpage \composedcollector{example}\stopTEXpage
\stoptext
</td><td>
<context>
\setupexternalfigures[location={local,default}]
\definecollector[example]
\setcollector [example] {\externalfigure[cow][width=4cm,frame=on]}
{\framed{4}}
\startTEXpage \composedcollector{example2}\stopTEXpage
\stoptext
</td><td>
<context>
\setupexternalfigures[location={local,default}]
\definecollector[example2]
\setcollector [example2] {\externalfigure[cow][width=4cm,frame=on]}
Notice that the size of the collected object grows as text is added.
As a consequence, the positions of the corners get redefined as the bounding box grows.
 
{{todo|We need more documentation and examples for this complicated subject.}}
 
[[Category:Graphics]] [[Category:Layers]]

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