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Code Activity

0030412: Visualization, TKV3d - add presentation of camera frustum

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1) Added method Graphic3d_Camera::FrustumPoints() returning corner points of camera frustum.
2) Refactored methods OpenGl_BVHTreeSelector::isFullOut(...) and OpenGl_BVHTreeSelector::CacheClipPtsProjections()
3) Changed computation algorithm of frustum planes (build them by corner points)
4) Added interactive object AIS_CameraFrustum to draw camera frustum.
5) Extended Draw command "vcamera" with option displaying camera frustum.
This commit is contained in:
osa
2018-12-17 12:01:17 +03:00
committed by bugmaster
parent 25333d45ea
commit 30a1b24e19
9 changed files with 637 additions and 122 deletions
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49
src/ViewerTest/ViewerTest_ViewerCommands.cxx
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@@ -19,6 +19,7 @@
#include <AIS_Animation.hxx>
#include <AIS_AnimationCamera.hxx>
#include <AIS_AnimationObject.hxx>
#include <AIS_CameraFrustum.hxx>
#include <AIS_ColorScale.hxx>
#include <AIS_Manipulator.hxx>
#include <AIS_RubberBand.hxx>
@@ -8974,6 +8975,7 @@ static int VCamera (Draw_Interpretor& theDI,
return 0;
}
TCollection_AsciiString aPrsName;
for (Standard_Integer anArgIter = 1; anArgIter < theArgsNb; ++anArgIter)
{
Standard_CString anArg = theArgVec[anArgIter];
@@ -9133,6 +9135,11 @@ static int VCamera (Draw_Interpretor& theDI,
}
theDI << aCamera->FOVy() << " ";
}
else if (aPrsName.IsEmpty()
&& !anArgCase.StartsWith ("-"))
{
aPrsName = anArg;
}
else
{
std::cout << "Error: unknown argument '" << anArg << "'\n";
@@ -9140,8 +9147,41 @@ static int VCamera (Draw_Interpretor& theDI,
}
}
aView->AutoZFit();
aView->Redraw();
if (aPrsName.IsEmpty()
|| theArgsNb > 2)
{
aView->AutoZFit();
aView->Redraw();
}
if (!aPrsName.IsEmpty())
{
Handle(AIS_CameraFrustum) aCameraFrustum;
if (GetMapOfAIS().IsBound2 (aPrsName))
{
// find existing object
aCameraFrustum = Handle(AIS_CameraFrustum)::DownCast (GetMapOfAIS().Find2 (theArgVec[1]));
if (aCameraFrustum.IsNull())
{
std::cout << "Error: object '" << aPrsName << "'is already defined and is not a camera frustum!\n";
return 1;
}
}
if (aCameraFrustum.IsNull())
{
aCameraFrustum = new AIS_CameraFrustum();
}
else
{
// not include displayed object of old camera frustum in the new one.
ViewerTest::GetAISContext()->Erase (aCameraFrustum, false);
aView->ZFitAll();
}
aCameraFrustum->SetCameraFrustum (aView->Camera());
ViewerTest::Display (aPrsName, aCameraFrustum);
}
return 0;
}
@@ -12404,13 +12444,14 @@ void ViewerTest::ViewerCommands(Draw_Interpretor& theCommands)
"vnbselected"
"\n\t\t: Returns number of selected objects", __FILE__, VNbSelected, group);
theCommands.Add ("vcamera",
"vcamera [-ortho] [-projtype]"
"vcamera [PrsName] [-ortho] [-projtype]"
"\n\t\t: [-persp]"
"\n\t\t: [-fovy [Angle]] [-distance [Distance]]"
"\n\t\t: [-stereo] [-leftEye] [-rightEye]"
"\n\t\t: [-iod [Distance]] [-iodType [absolute|relative]]"
"\n\t\t: [-zfocus [Value]] [-zfocusType [absolute|relative]]"
"\n\t\t: Manage camera parameters."
"\n\t\t: Manages camera parameters."
"\n\t\t: Displays frustum when presntation name PrsName is specified."
"\n\t\t: Prints current value when option called without argument."
"\n\t\t: Orthographic camera:"
"\n\t\t: -ortho activate orthographic projection"