<?xml version="1.0" encoding="UTF-8"?>
<!--
 * Scilab ( https://www.scilab.org/ ) - This file is part of Scilab
 * Copyright (C) ENPC - Jean-Philippe Chancelier
 *
 * Copyright (C) 2012 - 2016 - Scilab Enterprises
 *
 * This file is hereby licensed under the terms of the GNU GPL v2.0,
 * pursuant to article 5.3.4 of the CeCILL v.2.1.
 * This file was originally licensed under the terms of the CeCILL v2.1,
 * and continues to be available under such terms.
 * For more information, see the COPYING file which you should have received
 * along with this program.
 *
 -->
<refentry xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:svg="http://www.w3.org/2000/svg" xmlns:ns3="http://www.w3.org/1999/xhtml" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:db="http://docbook.org/ns/docbook" xmlns:scilab="http://www.scilab.org" xml:id="xfarc" xml:lang="pt">
    <refnamediv>
        <refname>xfarc</refname>
        <refpurpose>preenche parte de uma elipse</refpurpose>
    </refnamediv>
    <refsynopsisdiv>
        <title>Seqüência de Chamamento</title>
        <synopsis>xfarc(x,y,w,h,a1,a2)</synopsis>
    </refsynopsisdiv>
    <refsection>
        <title>Parâmetros</title>
        <variablelist>
            <varlistentry>
                <term>x,y,w,h</term>
                <listitem>
                    <para>quatro valores reais definindo um retângulo</para>
                </listitem>
            </varlistentry>
            <varlistentry>
                <term>a1,a2</term>
                <listitem>
                    <para>valores reais definindo um vetor</para>
                </listitem>
            </varlistentry>
        </variablelist>
    </refsection>
    <refsection>
        <title>Descrição</title>
        <para>
            <literal>xfarc</literal> preenche parte de uma elipse contida no
            retângulo <literal>(x,y,w,h)</literal> (ponto superior esquerdo, largura,
            altura), no setor definido pelo ângulo <literal>alpha1</literal> e o
            ângulo <literal>alpha1+alpha2</literal>. <literal>alpha1</literal> e
            <literal>alpha2</literal> são, respectivamente, <literal>a1/64</literal>
            graus e <literal>a2/64</literal> graus. Esta função usa a cor e a escala
            gráfica corrente.
        </para>
    </refsection>
    <refsection>
        <title>Exemplos</title>
        <programlisting role="example"><![CDATA[
// escala de isovisualização
plot2d(0,0,-1,"031"," ",[-2,-2,2,2])
xfarc(-0.5,0.5,1,1,0,90*64)
xfarc(0.5,0.5,1,1,0,360*64)
gce().background = 2;
 ]]></programlisting>
    </refsection>
    <refsection role="see also">
        <title>Ver Também</title>
        <simplelist type="inline">
            <member>
                <link linkend="xarc">xarc</link>
            </member>
            <member>
                <link linkend="xarcs">xarcs</link>
            </member>
            <member>
                <link linkend="xfarcs">xfarcs</link>
            </member>
        </simplelist>
    </refsection>
</refentry>
