VideoCAD

Options

 Miscellaneous

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 Miscellaneous

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Options

 Miscellaneous

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Graphics window

Main menu

View

Options

Miscellaneous

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Click to expand

 

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.

 

Exclude blinking

 

If the box is checked, then the redrawing is carried out in the computer memory and displayed on the screen only at the end. At that there is no image blinking, but the redrawing speed lowers slightly.

If the box is not checked, the redrawing is carried out directly on the screen.

 

Snap sensitivity

 

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.

 

Calculate shadow for active camera

 

Enable/ disable calculating shadows.

 

Automatic calculating  is performed for the active camera only.

To disable automatic calculating shadows (with keeping already calculated shadows) clear this box.

 

This box is duplicated in the Main menu of the Graphics window.

 

This checkbox has an influence on calculation of shadows in the Graphics window only, it hasn't influence on the 3D World.

 

See also:Shadows,Main menu>View>Calculate shadows for active camera, Main Menu>View>Recalculate shadows,Line type>Shadow, Layers>Shadow, Options box>Miscellaneous>Shadow, Options box>Calculate shadows from 3D models, Current construction parameter panel>3D model>Shadows, 3D Models window>Shadows, Choosing the best place for PTZ (dome) camera, Visualization of the camera control area projections and spatial resolution within them

 

Calculate shadow from 3D models

 

The calculation of shading from complex 3D models in the Graphics window - resource-intensive operation.

 

The calculation is disabled by default to save resources. To enable the calculation of shading from 3D models, mark the Calculate shadows for 3D models box.

Additionally, for each 3D model, which must be taken into account when calculating the shading:

double click on the model to switch it to editing state;
on the appeared Current construction parameter panel check Shadow checkbox.

 

In addition,

line type of the instance of 3D model must have Shadow checked;
the 3D must belong to a layer with Shadows field checked;

This checkbox has an influence on calculation of shadows in the Graphics window only, it hasn't influence on the 3D World. Calculation of shadows from 3D models in the 3D World requires much less computer power. It is convenient to use this checkbox to disable shadow calculation from 3D models in the Graphics window only, where this calculation requires a lot of resources, but leave the calculation of shadows from 3D models in the 3D World.

 

3D models with marked the Shadows checkbox in the 3D models window are considered as obstacles in the calculation of shading regardless of state of this checkbox Calculate shadow from 3D models.

 

See also:Shadows,Main menu>View>Calculate shadows for active camera, Main Menu>View>Recalculate shadows,Line type>Shadow, Layers>Shadow, Options box>Miscellaneous>Shadow, Options box>Calculate shadows from 3D models, Current construction parameter panel>3D model>Shadows, 3D Models window>Shadows, Choosing the best place for PTZ (dome) camera, Visualization of the camera control area projections and spatial resolution within them

 

Calculate shadow for active camera once

 

As a result of clicking this button, shadows for active camera will be calculated once, then the Calculate shadow for active camera box will be cleared and shadows will not be calculated anymore.  Shadows have been calculated will be saved in project.

 

Project auto saving

 

With this panel, you can adjust auto saving VideoCAD's working projects to chain of files in intervals specified in the Interval (min). The number of files is specified in the Depth box . The more files in the chain are and the larger the file size of the project, the more hard disk space will require. After full filling the chain, saving each new file will remove the oldest. You can specify autosave directory by clicking on the Dir button.

 

Files in the chain are the usual project files of VideoCAD. The newest file called vcadproject_1.vc7, previous vcadproject_2.vc7 etc.

Auto saving works while working with the program. When no work, saving stops.

 

Printing

 

On the panel you can enable printing via buffer that allows to print without error on printers which do not support GDI+ drawing commands of transparent fills, gradient and transparent projection of 3D models. Via the buffer you can print without errors on most virtual printers, such as printing to PDF.

 

When using the buffer printing on the raster buffer is performed firstly, and then the raster buffer is passed to the printer.

Without the use of the buffer the image is passed to the printer in vector form, as printing commands. If the printer does not support all commands, the distortions of the printed image are possible.

 

However not all printers can work with the Use buffer mode in all cases. In case of issues clear the Use buffer checkbox. Try also to decrease printer DPI resolution, hide raster background.

 

When using the print buffer or if the printer does not scale hatching, to print hatching properly check the option Scale hatching. If the printer scales hatching on their own and the buffer is not used, clear the Scale hatching, otherwise the hatching will be printed too rare.

 

Thin lines of raster background

 

Mark of this checkbox increases the thickness of the thin dark lines on a light background to one pixel when displaying raster background in the Graphics window. In most cases it improves readability of the background when it is scaled.

 

This mode decreases speed of redrawing background.

 

UNDO depth

 

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.

 

Monitor size factor

 

Correction factor to bring the physical size of the Monitor window on the computer screen to the value specified in the Monitor diagonal box on the Tool bar of the Monitor window.

 

To set the factor:

open the Monitor window;
specify in the Monitor diagonal box on the Tool bar of the Monitor window approximately a half of the physical diagonal of your computer screen. The Monitor window must be visible on the screen as a whole;
measure by a ruler the physical diagonal of the Monitor window on the computer screen;
calculate the needed Monitor size factor = (value in the Monitor diagonal box) / (Physical diagonal of the Monitor window).

 

The Monitor diagonal is measured in inches. 1 inch = 25.4 mm.

 

For various physical monitors and screen settings in Windows may require different Monitor size factors.

 

Simulate distortion

 

This checkbox can globally enable and disable simulation of lens distortion of cameras with lens distortion enabled.

 

See also: Lens distortion,

 

Sampling

Modeling the lens distortion in VideoCAD is performed with limited sampling, which can be changed in this box. Than more the value in the box is, the more segments will be used in calculation of distortion, the more precision, less artifacts, but the longer it takes for redrawing images with distortion.

 

See also: Lens distortion,

 

Spatial resolution and rotation

 

If this checkbox is not checked, then rotation of the camera around its axis does not affect the position of the vertical and horizontal in the frame when calculating the spatial resolution. Horizontal and vertical directions are tied to the camera and not to the scene.

 

If this checkbox is checked, 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 spatial resolution calculation will be tied to the scene, not to the camera.