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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.
HLR sample demonstrates hidden line removal algorithm. It supports exact and polygonal HLR algorihms. To try HLR you need to follow some steps: 1) to import model, which will displayed in 3d view. 2) to choose "File->Process HLR" or press "HLR' button in the toolbar. Dialog with options of HLR will be opened. 3) to press "Get shapes" button of the HLR dialog to display results in the 2d view. Optionally, this dialog allow to view chosen shapes in his own view. Here you can choose needed direction of view and press "Update 2d" button to update shapes HLR 2d view.