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1<?xml version="1.0"?>
2<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
3 "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
4<refentry id="libg3d-vector">
5<refmeta>
6<refentrytitle role="top_of_page" id="libg3d-vector.top_of_page">vector</refentrytitle>
7<manvolnum>3</manvolnum>
8<refmiscinfo>LIBG3D Library</refmiscinfo>
9</refmeta>
10
11<refnamediv>
12<refname>vector</refname>
13<refpurpose>Vector manipulation and calculation</refpurpose>
14<!--[<xref linkend="desc" endterm="desc.title"/>]-->
15</refnamediv>
16
17<refsynopsisdiv id="libg3d-vector.synopsis" role="synopsis">
18<title role="synopsis.title">Synopsis</title>
19
20<synopsis>
21
22#include &lt;g3d/vector.h&gt;
23
24typedef <link linkend="G3DVector">G3DVector</link>;
25<link linkend="gboolean">gboolean</link> <link linkend="g3d-vector-normal">g3d_vector_normal</link> (<link linkend="G3DFloat">G3DFloat</link> ax,
26 <link linkend="G3DFloat">G3DFloat</link> ay,
27 <link linkend="G3DFloat">G3DFloat</link> az,
28 <link linkend="G3DFloat">G3DFloat</link> bx,
29 <link linkend="G3DFloat">G3DFloat</link> by,
30 <link linkend="G3DFloat">G3DFloat</link> bz,
31 <link linkend="G3DFloat">G3DFloat</link> *nx,
32 <link linkend="G3DFloat">G3DFloat</link> *ny,
33 <link linkend="G3DFloat">G3DFloat</link> *nz);
34<link linkend="gboolean">gboolean</link> <link linkend="g3d-vector-unify">g3d_vector_unify</link> (<link linkend="G3DFloat">G3DFloat</link> *nx,
35 <link linkend="G3DFloat">G3DFloat</link> *ny,
36 <link linkend="G3DFloat">G3DFloat</link> *nz);
37<link linkend="gboolean">gboolean</link> <link linkend="g3d-vector-transform">g3d_vector_transform</link> (<link linkend="G3DFloat">G3DFloat</link> *x,
38 <link linkend="G3DFloat">G3DFloat</link> *y,
39 <link linkend="G3DFloat">G3DFloat</link> *z,
40 <link linkend="G3DMatrix">G3DMatrix</link> *matrix);
41</synopsis>
42</refsynopsisdiv>
43
44
45
46
47
48
49
50
51
52<refsect1 id="libg3d-vector.description" role="desc">
53<title role="desc.title">Description</title>
54<para>
55A vector is a one-dimensional array of floating point data.
56</para>
57<para>
58Declare it as statically as:
59</para>
60<para>
61G3DVector vector[3];
62</para>
63<para>
64or allocate it dynamically with:
65</para>
66<para>
67G3DVector *vector = g3d_vector_new(3, 1);</para>
68<para>
69
70</para>
71</refsect1>
72
73<refsect1 id="libg3d-vector.details" role="details">
74<title role="details.title">Details</title>
75<refsect2 id="G3DVector" role="typedef">
76<title>G3DVector</title>
77<indexterm zone="G3DVector"><primary>G3DVector</primary></indexterm><programlisting>typedef G3DFloat G3DVector;
78</programlisting>
79<para>
80Vector element type.</para>
81<para>
82
83</para></refsect2>
84<refsect2 id="g3d-vector-normal" role="function">
85<title>g3d_vector_normal ()</title>
86<indexterm zone="g3d-vector-normal"><primary>g3d_vector_normal</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link> g3d_vector_normal (<link linkend="G3DFloat">G3DFloat</link> ax,
87 <link linkend="G3DFloat">G3DFloat</link> ay,
88 <link linkend="G3DFloat">G3DFloat</link> az,
89 <link linkend="G3DFloat">G3DFloat</link> bx,
90 <link linkend="G3DFloat">G3DFloat</link> by,
91 <link linkend="G3DFloat">G3DFloat</link> bz,
92 <link linkend="G3DFloat">G3DFloat</link> *nx,
93 <link linkend="G3DFloat">G3DFloat</link> *ny,
94 <link linkend="G3DFloat">G3DFloat</link> *nz);</programlisting>
95<para>
96calculate the normal from a plane defined by two vectors</para>
97<para>
98
99</para><variablelist role="params">
100<varlistentry><term><parameter>ax</parameter>&nbsp;:</term>
101<listitem><simpara> x component first vector
102</simpara></listitem></varlistentry>
103<varlistentry><term><parameter>ay</parameter>&nbsp;:</term>
104<listitem><simpara> y component first vector
105</simpara></listitem></varlistentry>
106<varlistentry><term><parameter>az</parameter>&nbsp;:</term>
107<listitem><simpara> z component first vector
108</simpara></listitem></varlistentry>
109<varlistentry><term><parameter>bx</parameter>&nbsp;:</term>
110<listitem><simpara> x component second vector
111</simpara></listitem></varlistentry>
112<varlistentry><term><parameter>by</parameter>&nbsp;:</term>
113<listitem><simpara> y component second vector
114</simpara></listitem></varlistentry>
115<varlistentry><term><parameter>bz</parameter>&nbsp;:</term>
116<listitem><simpara> z component second vector
117</simpara></listitem></varlistentry>
118<varlistentry><term><parameter>nx</parameter>&nbsp;:</term>
119<listitem><simpara> x component resulting normal
120</simpara></listitem></varlistentry>
121<varlistentry><term><parameter>ny</parameter>&nbsp;:</term>
122<listitem><simpara> y component resulting normal
123</simpara></listitem></varlistentry>
124<varlistentry><term><parameter>nz</parameter>&nbsp;:</term>
125<listitem><simpara> z component resulting normal
126</simpara></listitem></varlistentry>
127<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> TRUE on success, FALSE else
128</simpara></listitem></varlistentry>
129</variablelist></refsect2>
130<refsect2 id="g3d-vector-unify" role="function">
131<title>g3d_vector_unify ()</title>
132<indexterm zone="g3d-vector-unify"><primary>g3d_vector_unify</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link> g3d_vector_unify (<link linkend="G3DFloat">G3DFloat</link> *nx,
133 <link linkend="G3DFloat">G3DFloat</link> *ny,
134 <link linkend="G3DFloat">G3DFloat</link> *nz);</programlisting>
135<para>
136Transforms the given vector to the unit vector.</para>
137<para>
138
139</para><variablelist role="params">
140<varlistentry><term><parameter>nx</parameter>&nbsp;:</term>
141<listitem><simpara> x component of vector
142</simpara></listitem></varlistentry>
143<varlistentry><term><parameter>ny</parameter>&nbsp;:</term>
144<listitem><simpara> y component of vector
145</simpara></listitem></varlistentry>
146<varlistentry><term><parameter>nz</parameter>&nbsp;:</term>
147<listitem><simpara> z component of vector
148</simpara></listitem></varlistentry>
149<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> TRUE on success, FALSE else
150</simpara></listitem></varlistentry>
151</variablelist></refsect2>
152<refsect2 id="g3d-vector-transform" role="function">
153<title>g3d_vector_transform ()</title>
154<indexterm zone="g3d-vector-transform"><primary>g3d_vector_transform</primary></indexterm><programlisting><link linkend="gboolean">gboolean</link> g3d_vector_transform (<link linkend="G3DFloat">G3DFloat</link> *x,
155 <link linkend="G3DFloat">G3DFloat</link> *y,
156 <link linkend="G3DFloat">G3DFloat</link> *z,
157 <link linkend="G3DMatrix">G3DMatrix</link> *matrix);</programlisting>
158<para>
159Transforms the given vector corresponding to the given matrix</para>
160<para>
161
162</para><variablelist role="params">
163<varlistentry><term><parameter>x</parameter>&nbsp;:</term>
164<listitem><simpara> x component of vector
165</simpara></listitem></varlistentry>
166<varlistentry><term><parameter>y</parameter>&nbsp;:</term>
167<listitem><simpara> y component of vector
168</simpara></listitem></varlistentry>
169<varlistentry><term><parameter>z</parameter>&nbsp;:</term>
170<listitem><simpara> z component of vector
171</simpara></listitem></varlistentry>
172<varlistentry><term><parameter>matrix</parameter>&nbsp;:</term>
173<listitem><simpara> transformation matrix (4x4)
174</simpara></listitem></varlistentry>
175<varlistentry><term><emphasis>Returns</emphasis>&nbsp;:</term><listitem><simpara> TRUE on success, FALSE else
176</simpara></listitem></varlistentry>
177</variablelist></refsect2>
178
179</refsect1>
180
181
182
183
184</refentry>
generated by cgit v1.1 at 2025-01-13 18:17:25 +0000