Page 79 - 3DF Zephyr

cloud) and one that requires to define a certain set of points in just one picture (given a dense point cloud or a mesh).  Manual extraction given two images and one sparse point cloud (multi camera polyline) In order to extract lines manually, a certain set of points must be defined on at least two pictures. This is done manually on the first selected picture, while an assisted automated point detection is offered when selecting other images. The point definition interface is similar to the one used to define control points, with the scroll-wheel used to zoom in and out and to pan the image via mousewheel click. On the right panel, the polyline name can be edited as well as the defined points. The top toolbar allows to switch from the "add mode" (which adds a new point) to the "edit mode" (which allows to edit a previously picked point). After selecting at least two points on the first image, the same points (in the same sequence) must be selected on another image.