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annotate src/ov-flt-cx-diag.cc @ 9393:d6c99b2ee941

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print.m: reimplement options -landscape and -portrait.
author Ben Abbott <bpabbott@mac.com>
date Wed, 24 Jun 2009 19:04:30 -0400
parents eb63fbe60fab
children f80c566bc751
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1 /*
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2
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3 Copyright (C) 2008, 2009 Jaroslav Hajek
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 #ifdef HAVE_CONFIG_H
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24 #include <config.h>
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25 #endif
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26
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27 #include "byte-swap.h"
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28
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29 #include "ov-flt-cx-diag.h"
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30 #include "ov-base-diag.cc"
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31 #include "ov-flt-re-diag.h"
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32 #include "ov-flt-complex.h"
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33 #include "ov-flt-cx-mat.h"
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34 #include "ls-utils.h"
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35
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36 template class octave_base_diag<FloatComplexDiagMatrix, FloatComplexMatrix>;
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37
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38 DEFINE_OCTAVE_ALLOCATOR (octave_float_complex_diag_matrix);
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39
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40 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_float_complex_diag_matrix,
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41 "float complex diagonal matrix", "single");
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42
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43 static octave_base_value *
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44 default_numeric_conversion_function (const octave_base_value& a)
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45 {
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46 CAST_CONV_ARG (const octave_float_complex_diag_matrix&);
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47
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48 return new octave_float_complex_matrix (v.float_complex_matrix_value ());
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49 }
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50
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51 octave_base_value::type_conv_info
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52 octave_float_complex_diag_matrix::numeric_conversion_function (void) const
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53 {
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54 return octave_base_value::type_conv_info (default_numeric_conversion_function,
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55 octave_float_complex_matrix::static_type_id ());
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56 }
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57
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58 octave_base_value *
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59 octave_float_complex_diag_matrix::try_narrowing_conversion (void)
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60 {
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61 octave_base_value *retval = 0;
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62
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63 if (matrix.nelem () == 1)
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64 {
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65 // FIXME: the proxy mechanism of DiagArray2 causes problems here.
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66 retval = new octave_float_complex (FloatComplex (matrix (0, 0)));
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67 octave_base_value *rv2 = retval->try_narrowing_conversion ();
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68 if (rv2)
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69 {
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70 delete retval;
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71 retval = rv2;
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72 }
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73 }
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74 else if (matrix.all_elements_are_real ())
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75 {
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76 return new octave_float_diag_matrix (::real (matrix));
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77 }
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78
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79 return retval;
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80 }
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81
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82 DiagMatrix
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83 octave_float_complex_diag_matrix::diag_matrix_value (bool force_conversion) const
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84 {
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85 DiagMatrix retval;
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86
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87 if (! force_conversion)
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88 gripe_implicit_conversion ("Octave:imag-to-real",
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89 type_name (), "real matrix");
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90
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91 retval = ::real (matrix);
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92
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93 return retval;
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94 }
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95
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96 FloatDiagMatrix
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97 octave_float_complex_diag_matrix::float_diag_matrix_value (bool force_conversion) const
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98 {
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99 DiagMatrix retval;
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100
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101 if (! force_conversion)
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102 gripe_implicit_conversion ("Octave:imag-to-real",
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103 type_name (), "real matrix");
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104
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105 retval = ::real (matrix);
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106
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107 return retval;
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108 }
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109
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110 ComplexDiagMatrix
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111 octave_float_complex_diag_matrix::complex_diag_matrix_value (bool) const
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112 {
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113 return ComplexDiagMatrix (matrix);
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114 }
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115
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116 FloatComplexDiagMatrix
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117 octave_float_complex_diag_matrix::float_complex_diag_matrix_value (bool) const
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118 {
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119 return matrix;
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120 }
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121
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122 octave_value
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123 octave_float_complex_diag_matrix::abs (void) const
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124 {
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125 return matrix.abs ();
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126 }
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127
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128 octave_value
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129 octave_float_complex_diag_matrix::real (void) const
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130 {
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131 return ::real (matrix);
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132 }
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133
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134 octave_value
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135 octave_float_complex_diag_matrix::conj (void) const
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136 {
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137 return ::conj (matrix);
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138 }
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139
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140 octave_value
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141 octave_float_complex_diag_matrix::imag (void) const
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142 {
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143 return ::imag (matrix);
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144 }
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145
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146 octave_value
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147 octave_float_complex_diag_matrix::sqrt (void) const
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148 {
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149 octave_value retval;
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150
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151 static FloatComplexNDArray::cmapper csqrt = std::sqrt;
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152
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153 FloatComplexColumnVector dvec = matrix.diag ();
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154 retval = FloatComplexDiagMatrix (dvec.map (csqrt));
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155
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156 retval.resize (dims ());
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157
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158 return retval;
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159 }
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160
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161 bool
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162 octave_float_complex_diag_matrix::save_binary (std::ostream& os,
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163 bool& /* save_as_floats */)
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164 {
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165
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166 int32_t r = matrix.rows (), c = matrix.cols ();
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167 os.write (reinterpret_cast<char *> (&r), 4);
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168 os.write (reinterpret_cast<char *> (&c), 4);
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169
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170 FloatComplexMatrix m = FloatComplexMatrix (matrix.diag ());
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171 save_type st = LS_FLOAT;
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172 if (matrix.length () > 4096) // FIXME -- make this configurable.
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173 {
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174 float max_val, min_val;
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175 if (m.all_integers (max_val, min_val))
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176 st = get_save_type (max_val, min_val);
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177 }
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178
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179 const FloatComplex *mtmp = m.data ();
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180 write_floats (os, reinterpret_cast<const float *> (mtmp), st, 2 * m.numel ());
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181
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182 return true;
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183 }
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184
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185 bool
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186 octave_float_complex_diag_matrix::load_binary (std::istream& is, bool swap,
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187 oct_mach_info::float_format fmt)
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188 {
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189 int32_t r, c;
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190 char tmp;
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191 if (! (is.read (reinterpret_cast<char *> (&r), 4)
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192 && is.read (reinterpret_cast<char *> (&c), 4)
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193 && is.read (reinterpret_cast<char *> (&tmp), 1)))
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194 return false;
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195 if (swap)
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196 {
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197 swap_bytes<4> (&r);
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198 swap_bytes<4> (&c);
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199 }
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200
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201 FloatComplexDiagMatrix m (r, c);
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202 FloatComplex *re = m.fortran_vec ();
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203 octave_idx_type len = m.length ();
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204 read_floats (is, reinterpret_cast<float *> (re),
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205 static_cast<save_type> (tmp), 2 * len, swap, fmt);
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206 if (error_state || ! is)
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207 return false;
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208 matrix = m;
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209
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210 return true;
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211 }
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212
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213 bool
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214 octave_float_complex_diag_matrix::chk_valid_scalar (const octave_value& val,
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215 FloatComplex& x) const
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216 {
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217 bool retval = val.is_complex_scalar () || val.is_real_scalar ();
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218 if (retval)
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219 x = val.float_complex_value ();
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220 return retval;
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221 }