<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-17T05:18:19Z</responseDate><request verb="GetRecord" identifier="oai:www.recercat.cat:10256/24783" metadataPrefix="mets">https://recercat.cat/oai/request</request><GetRecord><record><header><identifier>oai:recercat.cat:10256/24783</identifier><datestamp>2024-06-18T12:19:25Z</datestamp><setSpec>com_2072_452955</setSpec><setSpec>com_2072_2054</setSpec><setSpec>col_2072_453069</setSpec></header><metadata><mets xmlns="http://www.loc.gov/METS/" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" ID="&#xa;&#x9;&#x9;&#x9;&#x9;DSpace_ITEM_10256-24783" TYPE="DSpace ITEM" PROFILE="DSpace METS SIP Profile 1.0" xsi:schemaLocation="http://www.loc.gov/METS/ http://www.loc.gov/standards/mets/mets.xsd" OBJID="&#xa;&#x9;&#x9;&#x9;&#x9;hdl:10256/24783">
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                  <mods:namePart>Coll i Arnau, Narcís</mods:namePart>
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               <mods:name>
                  <mods:role>
                     <mods:roleTerm type="text">author</mods:roleTerm>
                  </mods:role>
                  <mods:namePart>Boada, Imma</mods:namePart>
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               <mods:name>
                  <mods:role>
                     <mods:roleTerm type="text">author</mods:roleTerm>
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                  <mods:namePart>Sellarès i Chiva, Joan Antoni</mods:namePart>
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                  <mods:dateAccessioned encoding="iso8601">2024-06-18T12:19:24Z</mods:dateAccessioned>
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               <mods:originInfo>
                  <mods:dateIssued encoding="iso8601">2002</mods:dateIssued>
               </mods:originInfo>
               <mods:identifier type="none"/>
               <mods:identifier type="uri">http://hdl.handle.net/10256/24783</mods:identifier>
               <mods:abstract>We define a quadtree-based planar Voronoi diagram codification, the Voronoi-Quadtree, valid for generalized sites (points, line-segments, curve-arc segments, ...) and for different distance functions (Euclidean metrics, convex distance functions, ...).We present an algorithm for constructing, at a prefixed level of detail, the Voronoi-Quadtree associated to a Voronoi diagram determined by a set of sites and a given distance function. A second algorithm that, taking as input a Voronoi-Quadtree, visualizes a polygonal approximation of the boundary of the Voronoi diagram is also describedThis work was supported by DURSI 2001SGR-00296. The first author was supported in part by grants TIC2000-1009 and TIC2001-2226-C02-02. The second and third authors were supported in part by grants MEC-DGES-SEUID PB98-0933, and TIC2001-2392-C03-01</mods:abstract>
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               <mods:accessCondition type="useAndReproduction">Tots els drets reservats. Reproduït amb el permís d'Eurographics Publishing info:eu-repo/semantics/openAccess</mods:accessCondition>
               <mods:subject>
                  <mods:topic>Infografia</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Computer graphics</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Voronoi, Polígons de</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Voronoi, Polygons</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Algorismes computacionals</mods:topic>
               </mods:subject>
               <mods:subject>
                  <mods:topic>Computer algorithms</mods:topic>
               </mods:subject>
               <mods:titleInfo>
                  <mods:title>The Voronoi-Quadtree: construction and visualization</mods:title>
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