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CADBasics 1.0 Help |
Description
Creates a photorealistic or realistically shaded image of a three-dimensional wireframe or solid model.
Render produces an image using information from a scene, the current selection set, or the current view.
Remarks
Vectordraw uses a Render engine. Some of this engine's properties and methods are exported through vdRender object. Basically these are usefull when the events below are fired :
| • | Draw |
| • | DrawEntity |
| • | DrawAfterEntity |
| • | DrawAfter |
| • | DrawBackground |
| • | CommandActionDraw |
VectorDraw renders the hole scene in a memory device context (memory bitmap). Then this bitmap is viewed. This default render object is returned from Render method of the component.
It is useful to draw in Low-Level without the need to add drawing objects.
VectorDraw renders in a Device, that can be a memory bitmap or a Device (hDC) that belongs to a Window (hWnd).
The basic properties of this vdRender object that are needed to transform the D.U. (Drawing Units) to Window-Pixels are :
| • | Upper Left corner of the Device (Left and Top in pixels) |
| • | Width in pixels |
| • | Height in pixels |
| • | View Center (GetViewCenter) in D.U. of current view, 2D point |
| • | View Size the height of the view in D.U. that defines the zoom. |
| • | vdMatrix object transformation that is used to transform the objects coordinates from World CS to curent view coordinate system. |
