PointCloudLibrary/pcl — pull request #439 by nizar-sallem (2014-01-13 13:51:11+00:00)
Title: Mark points

Mark several points at once in image viewer since its is faster to render than looping over markPoint method for all the points.
Unlike the markPoint method the drawn shape is a square (cheaper at rendering) in background color with its center in foreground color.