Options Interface |
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Options Interface |
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Options
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Graphics window Main menu View Options Interface |
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Scaling factor when turning the mouse wheel
At a large factor the navigation becomes quicker, but less precise. Also use the key Ctrl . Sign of this factor determines the reaction for direction of rotation the mouse wheel. The factor has an influence on scaling in the Graphics window, 3D World and 3D Models.
You can adjust a distance on which the cursor will be snapped to points, lines and grid as a result of snap effect.
Lesser sensitivity allows to control mouse more precisely.
Higher sensitivity allows to use some imprecise pointer devices or work with high resolution monitors.
VideoCAD keeps several previous states for the possibility to undo operations using the Undo function.
The number of keeping states can be adjusted in this box. The more states are kept and the more the project size, the more RAM is needed.
Background color in Graphics window
In the list, you can select any color as the background of the 2D drawing in the Graphics area of the Graphics window.
In the box, you can set up automatic selection of the grid spacing depending on the drawing scale in the direction of a larger or smaller step.
Learning mode is activated by default after installing VideoCAD. In learning mode VideoCAD shows more tips.
Due to the influence of lens distortion, for short focal length lenses the average over the field of view horizontal and vertical pixel density may differ. In the original European Standard EN 62676-4 2015, the pixel density was calculated based on the frame height, but nowadays the pixel density is often calculated based on the frame width. VideoCAD provides both options for calculating pixel density and flexible control of their switching when rotating the camera around its axis and using the Corridor mode.
Using this combobox you can select how to calculate pixel density in the Status bar of the Graphics window, Camera Geometry, 3D test, 3D Test on View area bounds, Table of cameras and in the PDF report:
Vertical pixels or Horizontal pixels.
If the pixel density is calculated horizontally, then after the value pmh (pixels per meter horizontal) or pfh (pixels per foot horizontal) is added.
If the pixel density is calculated vertically, then after the value pmv (pixels per meter vertical) or pfv (pixels per foot vertical) is added.
See also: Vert./Hor.switch
When rotating camera around its axis or in corridor mode, bind horizontal / vertical
| • | If to camera is chosen, then rotation of the camera around its axis does not affect the position of the vertical and horizontal in the frame when calculating the pixel density. Horizontal and vertical directions are tied to the camera (image sensor) and not to the scene. |
| • | If to scene is chosen, then each time you rotate the camera around its axis by an angle greater than 45 degrees, vertical number of pixels will be considered as horizontal and horizontal number of pixels - vertical. Further, at every rotation by an angle more than 135 degrees, vertical number of pixels will be considered vertical and horizontal number of pixels - horizontal. Thus the vertical and horizontal in the pixel density calculation will be tied to the scene, not to the camera. |
| • | Enabling Corridor mode is also considered to be rotating the camera around its axis. |
