You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) Contributors to the Open 3D Engine Project.
|
|
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0 OR MIT
|
|
*
|
|
*/
|
|
|
|
|
|
// Description : Calculate the reference frame for sub-object selections.
|
|
|
|
#include "EditorDefs.h"
|
|
|
|
#include "SubObjectSelectionReferenceFrameCalculator.h"
|
|
|
|
SubObjectSelectionReferenceFrameCalculator::SubObjectSelectionReferenceFrameCalculator(ESubObjElementType selectionType)
|
|
: m_anySelected(false)
|
|
, pos(0.0f, 0.0f, 0.0f)
|
|
, normal(0.0f, 0.0f, 0.0f)
|
|
, nNormals(0)
|
|
, selectionType(selectionType)
|
|
, bUseExplicitFrame(false)
|
|
, bExplicitAnySelected(false)
|
|
{
|
|
}
|
|
|
|
void SubObjectSelectionReferenceFrameCalculator::SetExplicitFrame(bool bAnySelected, const Matrix34& refFrame)
|
|
{
|
|
this->m_refFrame = refFrame;
|
|
this->bUseExplicitFrame = true;
|
|
this->bExplicitAnySelected = bAnySelected;
|
|
}
|
|
|
|
bool SubObjectSelectionReferenceFrameCalculator::GetFrame(Matrix34& refFrame)
|
|
{
|
|
if (this->bUseExplicitFrame)
|
|
{
|
|
refFrame = this->m_refFrame;
|
|
return this->bExplicitAnySelected;
|
|
}
|
|
else
|
|
{
|
|
refFrame.SetIdentity();
|
|
|
|
if (this->nNormals > 0)
|
|
{
|
|
this->normal = this->normal / static_cast<float>(this->nNormals);
|
|
if (!this->normal.IsZero())
|
|
{
|
|
this->normal.Normalize();
|
|
}
|
|
|
|
// Average position.
|
|
this->pos = this->pos / static_cast<float>(this->nNormals);
|
|
refFrame.SetTranslation(this->pos);
|
|
}
|
|
|
|
if (this->m_anySelected)
|
|
{
|
|
if (!this->normal.IsZero())
|
|
{
|
|
Vec3 xAxis(1, 0, 0), yAxis(0, 1, 0), zAxis(0, 0, 1);
|
|
if (this->normal.IsEquivalent(zAxis) || normal.IsEquivalent(-zAxis))
|
|
{
|
|
zAxis = xAxis;
|
|
}
|
|
xAxis = this->normal.Cross(zAxis).GetNormalized();
|
|
yAxis = xAxis.Cross(this->normal).GetNormalized();
|
|
refFrame.SetFromVectors(xAxis, yAxis, normal, pos);
|
|
}
|
|
}
|
|
|
|
return m_anySelected;
|
|
}
|
|
}
|