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< div class = "headertitle" > < div class = "title" > vectors_3d.c File Reference< / div > < / div >
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< / div > <!-- header -->
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< p > Functions related to 3D vector operations.
< a href = "#details" > More...< / a > < / p >
< div class = "textblock" > < code > #include < stdio.h> < / code > < br / >
< code > #include < math.h> < / code > < br / >
< code > #include < assert.h> < / code > < br / >
< code > #include " < a class = "el" href = "../../d0/dc7/geometry__datatypes_8h_source.html" > geometry_datatypes.h< / a > " < / code > < br / >
< / div > < div class = "textblock" > < div class = "dynheader" >
Include dependency graph for vectors_3d.c:< / div >
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< div class = "center" > < iframe scrolling = "no" frameborder = "0" src = "../../d7/daf/vectors__3d_8c__incl.svg" width = "430" height = "110" > < p > < b > This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.< / b > < / p > < / iframe >
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< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a id = "func-members" name = "func-members" > < / a >
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Functions< / h2 > < / td > < / tr >
< tr class = "memitem:ga97da356cb7d5da73a0ac9bad09a435cc" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a >   < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#ga97da356cb7d5da73a0ac9bad09a435cc" > vector_sub< / a > (const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *a, const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *b)< / td > < / tr >
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< tr class = "memdesc:ga97da356cb7d5da73a0ac9bad09a435cc" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Subtract one vector from another. < br / > < / td > < / tr >
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< tr class = "separator:ga97da356cb7d5da73a0ac9bad09a435cc" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:gaa6b5ac18429ffb0131dc8593d31c25a4" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a >   < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaa6b5ac18429ffb0131dc8593d31c25a4" > vector_add< / a > (const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *a, const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *b)< / td > < / tr >
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< tr class = "memdesc:gaa6b5ac18429ffb0131dc8593d31c25a4" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Add one vector to another. < br / > < / td > < / tr >
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< tr class = "separator:gaa6b5ac18429ffb0131dc8593d31c25a4" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ga243e74d542d0d4d14fa3ae0bc2170d84" > < td class = "memItemLeft" align = "right" valign = "top" > float  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#ga243e74d542d0d4d14fa3ae0bc2170d84" > dot_prod< / a > (const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *a, const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *b)< / td > < / tr >
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< tr class = "memdesc:ga243e74d542d0d4d14fa3ae0bc2170d84" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Obtain the dot product of two 3D vectors. < br / > < / td > < / tr >
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< tr class = "separator:ga243e74d542d0d4d14fa3ae0bc2170d84" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:gae4a49e6bdf13df949e8b23c7925bb5f5" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a >   < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#gae4a49e6bdf13df949e8b23c7925bb5f5" > vector_prod< / a > (const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *a, const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *b)< / td > < / tr >
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< tr class = "memdesc:gae4a49e6bdf13df949e8b23c7925bb5f5" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Compute the vector product of two 3d vectors. < br / > < / td > < / tr >
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< tr class = "separator:gae4a49e6bdf13df949e8b23c7925bb5f5" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:gae25e1f2e973933bef65838601e2de0af" > < td class = "memItemLeft" align = "right" valign = "top" > const char *  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#gae25e1f2e973933bef65838601e2de0af" > print_vector< / a > (const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *a, const char *name)< / td > < / tr >
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< tr class = "memdesc:gae25e1f2e973933bef65838601e2de0af" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Print formatted vector on stdout. < br / > < / td > < / tr >
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< tr class = "separator:gae25e1f2e973933bef65838601e2de0af" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:ga94805165d037d111d7d7c0df99e3a5de" > < td class = "memItemLeft" align = "right" valign = "top" > float  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#ga94805165d037d111d7d7c0df99e3a5de" > vector_norm< / a > (const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *a)< / td > < / tr >
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< tr class = "memdesc:ga94805165d037d111d7d7c0df99e3a5de" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Compute the norm a vector. < br / > < / td > < / tr >
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< tr class = "separator:ga94805165d037d111d7d7c0df99e3a5de" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ga3cdfd8378a0b115563ea6c561bb46b7e" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a >   < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#ga3cdfd8378a0b115563ea6c561bb46b7e" > unit_vec< / a > (const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *a)< / td > < / tr >
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< tr class = "memdesc:ga3cdfd8378a0b115563ea6c561bb46b7e" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Obtain unit vector in the same direction as given vector. < br / > < / td > < / tr >
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< tr class = "separator:ga3cdfd8378a0b115563ea6c561bb46b7e" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ga5082b0720c2cc51ae84bf19bd76dc849" > < td class = "memItemLeft" align = "right" valign = "top" > < a class = "el" href = "../../dd/d7a/group__matrix.html#ga9f844010cb96591fa94c9d533a500ab7" > mat_3x3< / a >   < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#ga5082b0720c2cc51ae84bf19bd76dc849" > get_cross_matrix< / a > (const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *a)< / td > < / tr >
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< tr class = "memdesc:ga5082b0720c2cc51ae84bf19bd76dc849" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > The cross product of vectors can be represented as a matrix multiplication operation. < br / > < / td > < / tr >
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< tr class = "separator:ga5082b0720c2cc51ae84bf19bd76dc849" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:ga55be1d766c8a824b35d97e79744834d8" > < td class = "memItemLeft" align = "right" valign = "top" > double  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../de/d7b/group__vec__3d.html#ga55be1d766c8a824b35d97e79744834d8" > get_angle< / a > (const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *a, const < a class = "el" href = "../../de/d7b/group__vec__3d.html#gaf9ee870d4922e488bdd3e7262485c270" > vec_3d< / a > *b)< / td > < / tr >
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< tr class = "memdesc:ga55be1d766c8a824b35d97e79744834d8" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Obtain the angle between two given vectors. < br / > < / td > < / tr >
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< tr class = "separator:ga55be1d766c8a824b35d97e79744834d8" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< tr class = "memitem:aa8dca7b867074164d5f45b0f3851269d" > < td class = "memItemLeft" align = "right" valign = "top" > static void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d5/db8/vectors__3d_8c.html#aa8dca7b867074164d5f45b0f3851269d" > test< / a > ()< / td > < / tr >
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< tr class = "memdesc:aa8dca7b867074164d5f45b0f3851269d" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Testing function. < br / > < / td > < / tr >
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< tr class = "separator:aa8dca7b867074164d5f45b0f3851269d" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:a840291bc02cba5474a4cb46a9b9566fe" > < td class = "memItemLeft" align = "right" valign = "top" > int  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "../../d5/db8/vectors__3d_8c.html#a840291bc02cba5474a4cb46a9b9566fe" > main< / a > (void)< / td > < / tr >
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< tr class = "memdesc:a840291bc02cba5474a4cb46a9b9566fe" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Main function. < br / > < / td > < / tr >
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< tr class = "separator:a840291bc02cba5474a4cb46a9b9566fe" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< / table >
< a name = "details" id = "details" > < / a > < h2 class = "groupheader" > Detailed Description< / h2 >
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< div class = "textblock" > < p > Functions related to 3D vector operations. < / p >
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< dl class = "section author" > < dt > Author< / dt > < dd > Krishna Vedala < / dd > < / dl >
< / div > < h2 class = "groupheader" > Function Documentation< / h2 >
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< a id = "a840291bc02cba5474a4cb46a9b9566fe" name = "a840291bc02cba5474a4cb46a9b9566fe" > < / a >
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< h2 class = "memtitle" > < span class = "permalink" > < a href = "#a840291bc02cba5474a4cb46a9b9566fe" > ◆   < / a > < / span > main()< / h2 >
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< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > int main < / td >
< td > (< / td >
< td class = "paramtype" > void  < / td >
< td class = "paramname" > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > Main function. < / p >
< dl class = "section return" > < dt > Returns< / dt > < dd > 0 on exit < / dd > < / dl >
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< div class = "fragment" > < div class = "line" > < span class = "lineno" > 261< / span > {< / div >
< div class = "line" > < span class = "lineno" > 262< / span > < a class = "code hl_function" href = "../../d5/db8/vectors__3d_8c.html#aa8dca7b867074164d5f45b0f3851269d" > test< / a > ();< / div >
< div class = "line" > < span class = "lineno" > 263< / span > < / div >
< div class = "line" > < span class = "lineno" > 264< / span > < span class = "keywordflow" > return< / span > 0;< / div >
< div class = "line" > < span class = "lineno" > 265< / span > }< / div >
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< div class = "ttc" id = "avectors__3d_8c_html_aa8dca7b867074164d5f45b0f3851269d" > < div class = "ttname" > < a href = "../../d5/db8/vectors__3d_8c.html#aa8dca7b867074164d5f45b0f3851269d" > test< / a > < / div > < div class = "ttdeci" > static void test()< / div > < div class = "ttdoc" > Testing function.< / div > < div class = "ttdef" > < b > Definition:< / b > vectors_3d.c:223< / div > < / div >
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< / div > <!-- fragment --> < div class = "dynheader" >
Here is the call graph for this function:< / div >
< div class = "dyncontent" >
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< h2 class = "memtitle" > < span class = "permalink" > < a href = "#aa8dca7b867074164d5f45b0f3851269d" > ◆   < / a > < / span > test()< / h2 >
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< td class = "memname" > static void test < / td >
< td > (< / td >
< td class = "paramtype" > void  < / td >
< td class = "paramname" > < / td > < td > )< / td >
< td > < / td >
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< span class = "mlabels" > < span class = "mlabel" > static< / span > < / span > < / td >
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< p > Testing function. < / p >
< dl class = "section return" > < dt > Returns< / dt > < dd > < code > void< / code > < / dd > < / dl >
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< div class = "fragment" > < div class = "line" > < span class = "lineno" > 224< / span > {< / div >
< div class = "line" > < span class = "lineno" > 225< / span > < a class = "code hl_struct" href = "../../d5/db4/structvec__3d__.html" > vec_3d< / a > a = {1., 2., 3.};< / div >
< div class = "line" > < span class = "lineno" > 226< / span > < a class = "code hl_struct" href = "../../d5/db4/structvec__3d__.html" > vec_3d< / a > b = {1., 1., 1.};< / div >
< div class = "line" > < span class = "lineno" > 227< / span > < span class = "keywordtype" > float< / span > d;< / div >
< div class = "line" > < span class = "lineno" > 228< / span > < / div >
< div class = "line" > < span class = "lineno" > 229< / span > < span class = "comment" > // printf(" %s" , print_vector(& a, " a" ));< / span > < / div >
< div class = "line" > < span class = "lineno" > 230< / span > < span class = "comment" > // printf(" %s" , print_vector(& b, " b" ));< / span > < / div >
< div class = "line" > < span class = "lineno" > 231< / span > < / div >
< div class = "line" > < span class = "lineno" > 232< / span > d = < a class = "code hl_function" href = "../../de/d7b/group__vec__3d.html#ga94805165d037d111d7d7c0df99e3a5de" > vector_norm< / a > (& a);< / div >
< div class = "line" > < span class = "lineno" > 233< / span > < span class = "comment" > // printf(" |a| = %.4g\n" , d);< / span > < / div >
< div class = "line" > < span class = "lineno" > 234< / span > assert(fabsf(d - 3.742f) < 0.01);< / div >
< div class = "line" > < span class = "lineno" > 235< / span > d = < a class = "code hl_function" href = "../../de/d7b/group__vec__3d.html#ga94805165d037d111d7d7c0df99e3a5de" > vector_norm< / a > (& b);< / div >
< div class = "line" > < span class = "lineno" > 236< / span > < span class = "comment" > // printf(" |b| = %.4g\n" , d);< / span > < / div >
< div class = "line" > < span class = "lineno" > 237< / span > assert(fabsf(d - 1.732f) < 0.01);< / div >
< div class = "line" > < span class = "lineno" > 238< / span > < / div >
< div class = "line" > < span class = "lineno" > 239< / span > d = < a class = "code hl_function" href = "../../de/d7b/group__vec__3d.html#ga243e74d542d0d4d14fa3ae0bc2170d84" > dot_prod< / a > (& a, & b);< / div >
< div class = "line" > < span class = "lineno" > 240< / span > < span class = "comment" > // printf(" Dot product: %f\n" , d);< / span > < / div >
< div class = "line" > < span class = "lineno" > 241< / span > assert(fabsf(d - 6.f) < 0.01);< / div >
< div class = "line" > < span class = "lineno" > 242< / span > < / div >
< div class = "line" > < span class = "lineno" > 243< / span > < a class = "code hl_struct" href = "../../d5/db4/structvec__3d__.html" > vec_3d< / a > c = < a class = "code hl_function" href = "../../de/d7b/group__vec__3d.html#gae4a49e6bdf13df949e8b23c7925bb5f5" > vector_prod< / a > (& a, & b);< / div >
< div class = "line" > < span class = "lineno" > 244< / span > < span class = "comment" > // printf(" Vector product " );< / span > < / div >
< div class = "line" > < span class = "lineno" > 245< / span > < span class = "comment" > // printf(" %s" , print_vector(& c, " c" ));< / span > < / div >
< div class = "line" > < span class = "lineno" > 246< / span > assert(fabsf(c.x - (-1.f)) < 0.01);< / div >
< div class = "line" > < span class = "lineno" > 247< / span > assert(fabsf(c.y - (2.f)) < 0.01);< / div >
< div class = "line" > < span class = "lineno" > 248< / span > assert(fabsf(c.z - (-1.f)) < 0.01);< / div >
< div class = "line" > < span class = "lineno" > 249< / span > < / div >
< div class = "line" > < span class = "lineno" > 250< / span > < span class = "keywordtype" > double< / span > alpha = < a class = "code hl_function" href = "../../de/d7b/group__vec__3d.html#ga55be1d766c8a824b35d97e79744834d8" > get_angle< / a > (& a, & b);< / div >
< div class = "line" > < span class = "lineno" > 251< / span > < span class = "comment" > // printf(" The angle is %f\n" , alpha);< / span > < / div >
< div class = "line" > < span class = "lineno" > 252< / span > assert(fabsf(alpha - 0.387597) < 0.01);< / div >
< div class = "line" > < span class = "lineno" > 253< / span > }< / div >
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< div class = "ttc" id = "agroup__vec__3d_html_ga243e74d542d0d4d14fa3ae0bc2170d84" > < div class = "ttname" > < a href = "../../de/d7b/group__vec__3d.html#ga243e74d542d0d4d14fa3ae0bc2170d84" > dot_prod< / a > < / div > < div class = "ttdeci" > float dot_prod(const vec_3d *a, const vec_3d *b)< / div > < div class = "ttdoc" > Obtain the dot product of two 3D vectors.< / div > < div class = "ttdef" > < b > Definition:< / b > vectors_3d.c:76< / div > < / div >
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< div class = "ttc" id = "agroup__vec__3d_html_ga55be1d766c8a824b35d97e79744834d8" > < div class = "ttname" > < a href = "../../de/d7b/group__vec__3d.html#ga55be1d766c8a824b35d97e79744834d8" > get_angle< / a > < / div > < div class = "ttdeci" > double get_angle(const vec_3d *a, const vec_3d *b)< / div > < div class = "ttdoc" > Obtain the angle between two given vectors.< / div > < div class = "ttdef" > < b > Definition:< / b > vectors_3d.c:202< / div > < / div >
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< div class = "ttc" id = "agroup__vec__3d_html_ga94805165d037d111d7d7c0df99e3a5de" > < div class = "ttname" > < a href = "../../de/d7b/group__vec__3d.html#ga94805165d037d111d7d7c0df99e3a5de" > vector_norm< / a > < / div > < div class = "ttdeci" > float vector_norm(const vec_3d *a)< / div > < div class = "ttdoc" > Compute the norm a vector.< / div > < div class = "ttdef" > < b > Definition:< / b > vectors_3d.c:138< / div > < / div >
< div class = "ttc" id = "agroup__vec__3d_html_gae4a49e6bdf13df949e8b23c7925bb5f5" > < div class = "ttname" > < a href = "../../de/d7b/group__vec__3d.html#gae4a49e6bdf13df949e8b23c7925bb5f5" > vector_prod< / a > < / div > < div class = "ttdeci" > vec_3d vector_prod(const vec_3d *a, const vec_3d *b)< / div > < div class = "ttdoc" > Compute the vector product of two 3d vectors.< / div > < div class = "ttdef" > < b > Definition:< / b > vectors_3d.c:105< / div > < / div >
< div class = "ttc" id = "astructvec__3d___html" > < div class = "ttname" > < a href = "../../d5/db4/structvec__3d__.html" > vec_3d_< / a > < / div > < div class = "ttdoc" > 3D vector type< / div > < div class = "ttdef" > < b > Definition:< / b > geometry_datatypes.h:22< / div > < / div >
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Here is the call graph for this function:< / div >
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