C++ (Cpp) vsg_vector2d_set Examples

Example #1

File: vec2norm.c Project: BackupTheBerlios/vsg-svn

gint main (gint argc, gchar ** argv)
{
  gint ret = 0;
  VsgVector2d v;
  gdouble res, ref;

  if (argc > 1 && g_strncasecmp (argv[1], "--version", 9) == 0)
    {
      g_print ("%s\n", PACKAGE_VERSION);
      return 0;
    }

  vsg_vector2d_set (&v, 1, 0);
  res = vsg_vector2d_norm (&v);
  ref = 1;
  ret += dcheck ("|[1, 0]| == 1", res, ref);

  vsg_vector2d_set (&v, 0, 1);
  res = vsg_vector2d_norm (&v);
  ref = 1;
  ret += dcheck ("|[0, 1]| == 1", res, ref);

  vsg_vector2d_set (&v, 1, 2);
  res = vsg_vector2d_norm (&v);
  ref = 2.236067977;
  ret += dcheck ("|[1, 2]| == 2.236067977", res, ref);

  vsg_vector2d_set (&v, 0.1, 0.2);
  res = vsg_vector2d_norm (&v);
  ref = 0.2236067977;
  ret += dcheck ("|[0.1, 0.2]| == 0.2236067977", res, ref);

  vsg_vector2d_set (&v, 1.2e-2,  0.);
  res = vsg_vector2d_norm (&v);
  ref = 0.012;
  ret += dcheck ("|[1.2e-2,  0.]| == 0.012", res, ref);

  vsg_vector2d_set (&v, 1.2e-3, 0);
  res = vsg_vector2d_norm (&v);
  ref = 0.0012;
  ret += dcheck ("|[1.2e-3, 0]| == 0.0012", res, ref);

  vsg_vector2d_set (&v, 0, 0);
  res = vsg_vector2d_norm (&v);
  ref = 0;
  ret += dcheck ("|[0, 0]| == 0", res, ref);

  vsg_vector2d_set (&v, 1, 1);
  res = vsg_vector2d_norm (&v);
  ref = 1.414213562;
  ret += dcheck ("|[1, 1]| == 1.414213562", res, ref);

  vsg_vector2d_set (&v, 1, 2.123);
  res = vsg_vector2d_norm (&v);
  ref = 2.346727296;
  ret += dcheck ("|[1, 2.123]| == 2.346727296", res, ref);

  return ret;
}

Example #2

File: vec2vecp.c Project: pigay/vsg

gint main (gint argc, gchar ** argv)
{
  gint ret = 0;
  VsgVector2d v, w;
  gdouble res, ref;

  if (argc > 1 && g_ascii_strncasecmp (argv[1], "--version", 9) == 0)
    {
      g_print ("%s\n", PACKAGE_VERSION);
      return 0;
    }

  vsg_vector2d_set (&v, 1., 0.);
  vsg_vector2d_set (&w, 0., 1.);
  res = vsg_vector2d_vecp (&v, &w);
  ref = 1.;
  ret += dcheck ("[1., 0.] ^ [0., 1.] == 1.", res, ref);

  vsg_vector2d_set (&v, 1., 2.);
  vsg_vector2d_set (&w, 0.1, 0.2);
  res = vsg_vector2d_vecp (&v, &w);
  ref = 0.;
  ret += dcheck ("[1., 2.] ^ [0.1, 0.2] == 0.", res, ref);

  vsg_vector2d_set (&v, 1.2e-2, 0.);
  vsg_vector2d_set (&w, 1.2e-3, 0.);
  res = vsg_vector2d_vecp (&v, &w);
  ref = 0.;
  ret += dcheck ("[1.2e-2, 0.] ^ [1.2e-3, 0.] == 0.", res, ref);

  vsg_vector2d_set (&v, 0., 0);
  vsg_vector2d_set (&w, 0., 0);
  res = vsg_vector2d_vecp (&v, &w);
  ref = 0.;
  ret += dcheck ("[0., 0.] ^ [0., 0.] == 0.", res, ref);

  vsg_vector2d_set (&v, 1., 1.);
  vsg_vector2d_set (&w, 1., 2.123);
  res = vsg_vector2d_vecp (&v, &w);
  ref = 1.123;
  ret += dcheck ("[1., 1.] ^ [1., 2.123] == 1.123", res, ref);

  return ret;
}

Example #3

File: vec2dotp.c Project: pigay/vsg

gint main (gint argc, gchar ** argv)
{
  gint ret = 0;
  VsgVector2d v, w;
  gdouble res, ref;

  if (argc > 1 && g_ascii_strncasecmp (argv[1], "--version", 9) == 0)
    {
      g_print ("%s\n", PACKAGE_VERSION);
      return 0;
    }

  vsg_vector2d_set (&v, 1, 0);
  vsg_vector2d_set (&w, 0, 1);
  res = vsg_vector2d_dotp (&v, &w);
  ref = 0;
  ret += dcheck ("[1, 0] . [0, 1] == 0", res, ref);

  vsg_vector2d_set (&v, 1, 2);
  vsg_vector2d_set (&w, 0.1, 0.2);
  res = vsg_vector2d_dotp (&v, &w);
  ref = 0.5;
  ret += dcheck ("[1, 2] . [0.1, 0.2] == 0.5", res, ref);

  vsg_vector2d_set (&v, 1.2e-2,  0.);
  vsg_vector2d_set (&w, 1.2e-3, 0);
  res = vsg_vector2d_dotp (&v, &w);
  ref = 1.44e-05;
  ret += dcheck ("[1.2e-2,  0.] . [1.2e-3, 0] == 1.44e-05", res, ref);

  vsg_vector2d_set (&v, 0, 0);
  vsg_vector2d_set (&w, 0, 0);
  res = vsg_vector2d_dotp (&v, &w);
  ref = 0;
  ret += dcheck ("[0, 0] . [0, 0] == 0", res, ref);

  return ret;
}