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f751596e46
Redesign of selection mechanism: - implemented 3-level BVH tree for selection; - selection now calculates in 3D space; - intersection tests were moved to SelectMgr_BaseFrustum descendants; - removed .cdl files in Select3D and .cdl related to selection in MeshVS; - SelectMgr_ViewerSelectors are now shared between local and global contexts; - transformations of sensitive entities are now stored in SelectMgr_SelectableObject only. Sensitive entities are independent from transformations, it is applied to SelectMgr_SelectingVolumeManager instance only; - connected and multiple connected interactive objects are now represented by their child objects only for SelectMgr_SelectionManager; - if interactive object has child objects, they will be stored as separate objects in SelectMgr_SelectionManager now. - test cases bugs/vis/bug24623_1, bug24623_2, bug24623_3, bug24623_4 to test performance and memory issues.
Viewer2d sample demonstrates how the functionality of TKV3d package can be used for 2D visualization. It provides samples of 2D objects visualization, dynamic selection and highlighting. It illustrates how to: 1) implement 2D view behavior with V3d_View class, with interactive zooming and panning of the 2D scene; 2) draw 2D primitives like rectangles, lines, curves; 3) draw different types of markers; 4) draw text defined by its font, height, style, angle; 5) display 2D curves of a face' edges and group them using orientation criterion; 6) display zoomable images; 6) display circular and rectangular grids . Viewer2d support zooming ,panning of displayed objects and circular and rectangular grids.