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occt/tests/bugs/modalg_2/bug21255
apl 197ac94e72 0024413: Visualization - get rid of projection shift from orthographic camera definition
From now on, the panning behavior of V3d_View completely corresponds to equal operations with camera. There is no more confusing "Center" property and "ProjectionShift" which were used to introduce composite panning, while respecting view referential points: At, Eye unchanged. The V3d_View::FitAll approach has been rewritten to do "fit all" geometrically, operating with frustum, to make it working for both orthographic and perspective projections.

1) Getting rid of ProjectionShift and Center property:
- Removed ProjectionShift property of Graphic3d_Camera.
- Removed confusing Center property of V3d_View (related to projection shift).
- Removed redundant code related to the Center property of V3d_View.
- Removed WindowLimit method of Graphic3d_Camera - no more used.

2) Improvements of fit all and selector:
- Improved FitAll operation of V3d_View and reused it in NIS_View - the perspective projection is now handled correctly.
- Revised code of Select3D_Projector class - can be defined with any given projection and model-view matrices.
- Modified StdSelect_ViewerSelector3d and ensured that panning, zooming and going into the view do not lead to unwanted re-projection of sensitives. The handling of perspective selection is revised.
- Take into account graphical boundaries of infinite structure on ZFitAll.

3) Improvements of camera:
- Introduced new z range scale parameter for V3d_View::AutoZFit. See, V3d_View::AutoZFitMode.
- Allow negative ZNear, ZFar for orthographic camera to avoid clipping of viewed model.
- Moved camera ZNear, ZFar validity checks to V3d_View level.
- Use more meaningful Standard_ShortReal relative precision for ZNear, ZFar ranges computed by ZFitAll.
- Use Standard_Real type for camera projection and orientation matrices.
- Extended camera to generate both Standard_Real and Standard_ShortReal transformation matrices using the same matrix evaluation methods and converted input parameters.

Correcting picking tests for perspective view

Modify v3d face test cases for 1px changes in face picking

Modified test cases for new arguments of vviewparams DRAWEXE command
2014-03-06 15:50:33 +04:00

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puts "============"
puts "OCC21255"
puts "============"
puts ""
#######################################################################
# Some problems with 3D chamfer construction
#######################################################################
set BugNumber OCC21255
restore [locate_data_file OCC21255-1.brep] ss
explode ss F
explode ss_7 E
vinit
if [catch { chamf result ss ss_7_2 ss_7 5. 5. } ] {
puts "Faulty ${BugNumber} : chamf is wrong"
} else {
set square 45382.5
set nb_v_good 15
set nb_e_good 22
set nb_w_good 9
set nb_f_good 9
set nb_sh_good 1
set nb_sol_good 1
set nb_compsol_good 0
set nb_compound_good 1
set nb_shape_good 58
set 3dviewer 0
vdisplay result
vsetdispmode 1
vfit
set scale 5.8955238204183011
set proj_X 0.62061613798141479
set proj_Y -0.6891753077507019
set proj_Z -0.37399500608444214
set up_X -0.12894462049007416
set up_Y -0.56017255783081055
set up_Z 0.81827831268310547
set at_X -56.828238528324
set at_Y -19.8089213662065
set at_Z 447.801500039167
vviewparams -scale ${scale} -proj ${proj_X} ${proj_Y} ${proj_Z} -up ${up_X} ${up_Y} ${up_Z} -at ${at_X} ${at_Y} ${at_Z}
}
set only_screen 1