OpendTect User Documentation version 4.2
Prev Next

2.3. Mouse Controls: Scenes & graphical interaction

The workspace contains one or more graphics windows. There are two basic manipulation modes: view mode and interact mode. The latter has two sub-modes: moving and picking. One can toggle between the view and interact mode with the Esc key.

In view mode (selected by clicking on the "hand" icon), the cursor is displayed with two circular arrows. In this mode, each scene can be rotated and zoomed independently using mouse button operations. Left-click and drag is for rotating the image. Simultaneous left+middle button click and drag is for moving the camera closer or further away. Shifting the image is done by middle mouse button click and drag movements.

In interact mode (selected by pressing the "arrow" icon ), the cursor is an arrow. In interact mode, you can move the elements in 3D space (move mode) or you can pick example position to train neural networks (pick mode).

In pick mode, the current pickset is highlighted (reverse video) in the tree and the status bar displays a message; for example: "Nr of picks: 25". A new position is added to the current pickset by clicking with the left-hand mouse button. The status bar message is updated: "Nr of picks: 26". Picks from the current pickset can be removed by holding the Ctrl-key (the Apple key on MacOS) and pressing the left-hand mouse button.

Move mode is used to move elements to other positions in the data cube. An element is selected by clicking with the left mouse button in the tree, or on the element in the graphics window (only if you are not in pick mode). Arrows and a frame with handles appear around the active element. Moving the element to another parallel plane is done by left-clicking and dragging on one of the arrows. The new position is also indicated in the status bar at the bottom of the OpendTect main window. The element can be resized by left-click and drag on one of the green handles. Left-click and drag inside the element moves the element in the in-plane direction. Data will be loaded into the new position after left-clicking outside the element frame.

Direct accurate positioning of data elements is possible using the Position option from the pop-up menu in the tree. In interact mode, as well as move the cursor position (inline, crossline, 2WT), the data value at the cursor position are returned. These are displayed in a status line at the bottom of the OpendTect main window. Scenes can be rotated and zoomed in and out simultaneously using the wheel controls and the zoom slide-bar in the OpendTect main window. These controls operate irrespective of the view mode (view, interact, pick).
Table 2-1. Graphics interaction

View mode Interact mode
Move mode Pick mode
keyboard "s" + left click zoom in to clicked position left click activate element left click pick position
left click+drag rotate left click outside active element, or left click in empty space oftree de-activate element CTRL-left click delete pick
middle click shift left click+drag arrow move element to parallel plane
left+middle click+drag Move camera closer/away left click+drag inside active element move element in-plane direction
left click+drag+quick release continuous rotate left click+drag handles resize
move cursor return position and value move cursor return position and value
Note. De-activate elements is also possible by clicking (left-hand) in an empty space of the tree.

Notes for MAC users. The Apple key usually has the same function as the CTRL key on a PC. However, it is recommended to use a three-button mouse. All manipulations mentioned in this table (and elsewhere in the documentation) are also possible with a single button apple mouse, in combination with SHIFT and/or the Apple key and/or the CTRL key, but it is easier to work with a three-button mouse.
Prev Home Next
Toolbars   Color Tables