as a pdb file), PyMOL uses model space coordinates. Model space coordinates can be changed with the commands rotate, translate, and transform_selection, or with the mouse in editing mode. The relation between camera space and model space is described in the view matrix (see get_view).Ĭhanging the coordinates in model space is only necessary when objects must be moved relative to each other or when the transformed coordinates are to be written into a file. Camera space always corresponds to the physical directions of the screen-x and y are horizontal and vertical, and z is perpendicular to the screen. The camera is situated in the origin of camera space, x and y are horizontal respectively vertical and z is the viewing direction. The commands turn, move, center, zoom, and orient, as well as mouse action in viewing mode, can be used to move the camera in object space.įor easy description of object movement relative to the camera, an additional coordinate system is defined: Camera space. After changing the view, the x, y and z axes of model space no longer correspond to the directions of the screen. In normal operation, to change the view, the camera is moved and the view of all objects is changed simultaneously that is, the objects are not moved relative to one other. So, initially, the model axes correspond to the physical directions of the screen: x and y are horizontal and vertical, z is perpendicular to the screen. The model's x and y axes are horizontal and vertical, respectively. Initially, after loading an object, the camera is placed such that it looks on the object parallel to the model's z axis. The picture that is shown on the screen is the image that is "taken" by the camera. To make objects visible, PyMOL places a "camera" such that it sees most of the molecule. as xyz coordinates for each atom (or surface point or corner or.). Objects are defined in a Cartesian coordinate system, i.e.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |