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Camera control
This page explains how to navigate within the OIP's viewport in order to see the model from different perspectives.
Home
The house icon above the right corner of the viewport moves the model to the centre of the viewport and zooms to show the whole model.
This can be achieved using the keyboard shortcut H as well.
View cube
The view cube in the right corner of the viewport enables to change the perspective. There are 6 (faces) + 12 (edges) + 8 (vertices) = 26 different possibilities.
View menu
The view menu above the left corner of the viewport allows to change the perspective to these preset values.
| View | Explanation |
|---|---|
| Top | You see the x-y-plane towards negative z-axis |
| Bottom | You see the x-y-plane towards positive z-axis |
| Left | You see the y-z-plane towards negative x-axis |
| Right | You see the y-z-plane towards positive x-axis |
| Front | You see the x-z-plane towards negative y-axis |
| Back | You see the x-z-plane towards positive y-axis |
| Isometric | Camera looks towards (x,y,z)=(1,1,1) |
There are two possible ways of free navigation, as explained below.
NOTE:
Most of the code responsible for the listed actions is part of void Viewport::mouseMoveEvent(QMouseEvent* event), should you wish to tweak anything.
Option 1: Mouse mode (default)
| Key combination | Effect |
|---|---|
| Alt + LMB + move | rotation |
| turn MMB | zoom in/out |
| MMB + move | zoom in/out |
| RMB + move | translation |
Legend: LMB, MMB, RMB = left, middle, and right mouse button, respectively.
Option 2: Spectator mode
You need to select the ghost icon above the right corner of the viewport to enable/disable spectator mode.
This can be achieved using the keyboard shortcut T as well.
Here you can move through the model using the following commands.
| Key | Action |
|---|---|
| W | move forwards |
| A | move left |
| S | move downwards |
| D | move right |
Changing the direction is achieved using the left mouse button and moving the mouse.
You can change the speed of movement using the mouse wheel.
The projection of the model can be changed using the Projection menu above the right corner of the viewport. The possible options are Perspective (default) and Orthographic.