Eigen::Matrix formatting sometimes includes spaces

[charlescva]

TheiaSfM/src/theia/io/write_ply_file.cc

Line 116 in 4ba81cc

ply_writer << points_to_write[i].transpose() << " "

Can produce output like:

1.98662  97 110 129
3.31429 3.52336 2.25344 56 62 42
0.495699  5.89537  1.98544 170 171 179
-3.78543  13.2922  2.54211 238 228 201
-13.1867 -1.20913  2.15219 188  86  81
1.22623 1.51887 2.52168 111  92  81
-5.44469 0.845202  1.75544 253 252 254
-9.03693 -3.38899  2.23863 134 133 139
  -7.78714 -0.0770628    2.33033 88 92 51
4.46483 2.75048 2.27332 180 163 118
-1.55375  9.22783  2.61945 106 101  66
0.94116 1.52814 2.52329 193 178 145
-2.90701 -1.19605  2.36058 70 87 50
4.20461 9.59579 2.52774  86  90 100
0.366025  2.04211  2.53315 162 159 158
-0.751571   6.26258    1.9971 198 203 211

Notice occasional white space after \n (newline) and between values.

[sweeneychris]

Happy to accept a PR if you were able to fix this bug :)