Point of View Sample
Point Of View sample demonstrates usage and programming of
View Points. Source Files for the
sample are located in Samples\VC\PointOfView folder of the installation
directory.
The application
By default the application loads Samples\PointOfView.mdg model, which is a
modification of Cow.mdg model and consists of two objects and has three
predefined View Points, the first of which is the
default view point.
The application has two modes: Stored and Transient to handle
Persistent and
Transient View
Points respectively. The mode is displayed and can be changed in the "View Point
Type" group.
View Points list box displays available persistent view points.
In Stored mode "Add Current" button creates a new view point which will keep
the current configuration of view.
In Transient mode the same button, which will be renamed to "Store Current"
stores the current configuration of view in the
Transient View Point
of DG Kernel View.
Selected View Point group displays actions and properties for the view point
selected in the list (Stored mode) or of the
Transient View Point
(Transient mode).
Activate button restores configuration of view stored in the selected view
point.
Make Default button (Stored mode only) toggles
Default property of
the selected view point.
The selected view point can be renamed.
"View Point" check box is the Show group will display
Viewing Volume of the view point with
a blue wire frame box. Zoom out to see the box.
"Frame" check box is the Show group will display location and orientation of
local frame of the view point
File menu allows loading and saving models, which makes this sample fully
functional view point array editor. It can be used for example to quickly add a
default view point to be displayed on load of any model.
View Point > Geometry submenu allows modification of location and direction
of line of view for the selected view point.
View Point > Geometry > "Viewing Volume" dialogue displays dimensions of the
Viewing Volume, which determines zoom. Only the first two components are
modifiable.
View Point > Geometry > Direction allows editing direction of line of view.
It can be done using rotations of the local frame of the view point. Note that
functionality of the Rotation dialogue can be easily modified to include rotation
around any axis, for example around the global y axis.
Delete command in View Point menu deletes the currently selected view point.
See also: Sample List.
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