<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1405-5546</journal-id>
<journal-title><![CDATA[Computación y Sistemas]]></journal-title>
<abbrev-journal-title><![CDATA[Comp. y Sist.]]></abbrev-journal-title>
<issn>1405-5546</issn>
<publisher>
<publisher-name><![CDATA[Instituto Politécnico Nacional, Centro de Investigación en Computación]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-55462003000200002</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A Fast Method for Plotting Binary Solids Composed of a Large Number of Voxels]]></article-title>
<article-title xml:lang="es"><![CDATA[Un Método Rápido para Graficar Sólidos Binarios Compuestos de una Gran Cantidad de Voxels]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bribiesca]]></surname>
<given-names><![CDATA[Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velarde Vázquez]]></surname>
<given-names><![CDATA[Carlos B.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas Departamento de Ciencias de la Computación]]></institution>
<addr-line><![CDATA[D.F. ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2003</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2003</year>
</pub-date>
<volume>6</volume>
<numero>4</numero>
<fpage>247</fpage>
<lpage>252</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-55462003000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-55462003000200002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-55462003000200002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[We present a fast and efficient method for plotting rigid solids composed of a large number of voxels. This method is based on the concept of the contact surface area. The contact surface area corresponds to the sum of the contact surface areas of the face-connected voxels of solids. A relation between the area of the surface enclosing the volume and the contact surface area is presented. We analyze the minimum and maximum contact surface areas. Finally, we present a result using a binary solid of the real world.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se presenta un método rápido y eficiente para graficar objetos sólidos y rígidos compuestos por un gran número de voxels. Este método se basa en el concepto del área de superficie de contacto. El área de superficie de contacto corresponde a la suma de las áreas de las superficies de contacto de los voxels vecinos de los sólidos. La relación entre la superficie envolvente y la de contacto del volumen es definida. Se analizan las áreas de las superficies de contacto mínimas máximas. Finalmente, se presenta un resultado del método usando datos reales de un sólido binario.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Binary Solids]]></kwd>
<kwd lng="en"><![CDATA[Voxel-Based Objects]]></kwd>
<kwd lng="en"><![CDATA[Plotting]]></kwd>
<kwd lng="es"><![CDATA[Sólidos Binarios]]></kwd>
<kwd lng="es"><![CDATA[Objetos Voxelizados y Graficación]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Art&iacute;culos</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>A Fast Method for Plotting Binary Solids Composed of a Large Number of Voxels</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><i>Un M&eacute;todo R&aacute;pido para Graficar S&oacute;lidos Binarios Compuestos de una Gran Cantidad de Voxels</i></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>Ernesto Bribiesca and Carlos B. Velarde V&aacute;zquez</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><i>Departamento de Ciencias de la Computaci&oacute;n    <br>   Instituto de Investigaciones en Matem&aacute;ticas Aplicadas y en Sistemas    ]]></body>
<body><![CDATA[<br>   Universidad Nacional Aut&oacute;noma de M&eacute;xico, Apdo. Postal. 20&#150;726    <br> M&eacute;xico, D.F., 01000, M&eacute;xico</i></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>E&#150;mail:</b> <a href="mailto:ernesto@leibniz.iimas.unam.mx">ernesto@leibniz.iimas.unam.mx</a>, <a href="mailto:velarde@servidor.unam.mx">velarde@servidor.unam.mx</a></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><u>Article received on September 24, 2001; accepted on March 03, 2003</u></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2"><i>We present a fast and efficient method for plotting rigid solids composed of a large number of voxels. This method is based on the concept of the contact surface area. The contact surface area corresponds to the sum of the contact surface areas of the face&#150;connected voxels of solids. A relation between the area of the surface enclosing the volume and the contact surface area is presented. We analyze the minimum and maximum contact surface areas. Finally, we present a result using     a     binary     solid     of    the     real     world.</i></font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Binary Solids, Voxel&#150;Based Objects, Plotting,</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2"><i>Se presenta un m&eacute;todo r&aacute;pido y eficiente para graficar objetos s&oacute;lidos y r&iacute;gidos compuestos por un gran n&uacute;mero de voxels. Este m&eacute;todo se basa en el concepto del &aacute;rea de superficie de contacto. El &aacute;rea de superficie de contacto corresponde a la suma de las &aacute;reas de las superficies de contacto de los voxels vecinos de los s&oacute;lidos. La relaci&oacute;n entre la superficie envolvente y la de contacto del volumen es definida. Se analizan las &aacute;reas de las superficies de contacto m&iacute;nimas m&aacute;ximas. Finalmente, se presenta un resultado del m&eacute;todo  usando  datos   reales  de   un  s&oacute;lido   binario.</i></font></p>     <p align="justify"><font face="verdana" size="2"><b>Palabras clave:</b> S&oacute;lidos Binarios, Objetos Voxelizados y Graficaci&oacute;n.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font size="2" face="verdana"><a href="/pdf/cys/v6n4/v6n4a2.pdf" target="_blank">DESCARGAR ARTICULO EN FORMATO PDF</a></font></p>     <p align="justify"><font size="2" face="verdana">&nbsp;</font></p>     <p align="justify"><font size="2" face="verdana"><b>Acnowledgements</b></font></p>     <p align="justify"><font size="2" face="verdana">This work was in part supported by the REDII CONACYT. Digital elevation model data used in this study were provided by INEGI. We thank the anonymous referees for their valuable comments.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
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