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//##########################################################################
//# #
//# CLOUDCOMPARE #
//# #
//# This program is free software; you can redistribute it and/or modify #
//# it under the terms of the GNU General Public License as published by #
//# the Free Software Foundation; version 2 or later of the License. #
//# #
//# This program is distributed in the hope that it will be useful, #
//# but WITHOUT ANY WARRANTY; without even the implied warranty of #
//# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
//# GNU General Public License for more details. #
//# #
//# COPYRIGHT: EDF R&D / TELECOM ParisTech (ENST-TSI) #
//# #
//##########################################################################
#include "ccGenericGLDisplay.h"
//CCLib
#include <CCConst.h>
ccViewportParameters::ccViewportParameters()
: pixelSize(1.0f)
, zoom(1.0f)
, defaultPointSize(1)
, defaultLineWidth(1)
, perspectiveView(false)
, objectCenteredView(true)
, zNearCoef(0.005)
, zNear(0)
, zFar(0)
, pivotPoint(0, 0, 0)
, cameraCenter(0, 0, 0)
, fov(30.0f)
, perspectiveAspectRatio(1.0f)
, orthoAspectRatio(1.0f)
{
viewMat.toIdentity();
}
ccViewportParameters::ccViewportParameters(const ccViewportParameters& params)
: pixelSize(params.pixelSize)
, zoom(params.zoom)
, viewMat(params.viewMat)
, defaultPointSize(params.defaultPointSize)
, defaultLineWidth(params.defaultLineWidth)
, perspectiveView(params.perspectiveView)
, objectCenteredView(params.objectCenteredView)
, zNearCoef(params.zNearCoef)
, zNear(params.zNear)
, zFar(params.zFar)
, pivotPoint(params.pivotPoint)
, cameraCenter(params.cameraCenter)
, fov(params.fov)
, perspectiveAspectRatio(params.perspectiveAspectRatio)
, orthoAspectRatio(params.orthoAspectRatio)
{
}
bool ccViewportParameters::toFile(QFile& out) const
{
//base modelview matrix (dataVersion>=20)
if (!viewMat.toFile(out))
return false;
//other parameters (dataVersion>=20)
QDataStream outStream(&out);
outStream << pixelSize;
outStream << zoom;
outStream << defaultPointSize;
outStream << defaultLineWidth;
outStream << perspectiveView;
outStream << objectCenteredView;
outStream << pivotPoint.x;
outStream << pivotPoint.y;
outStream << pivotPoint.z;
outStream << cameraCenter.x;
outStream << cameraCenter.y;
outStream << cameraCenter.z;
outStream << fov;
outStream << perspectiveAspectRatio;
//ortho mode aspect ratio (dataVersion>=30)
outStream << orthoAspectRatio;
return true;
}
bool ccViewportParameters::fromFile(QFile& in, short dataVersion, int flags)
{
//base modelview matrix (dataVersion>=20)
if (dataVersion >= 36) //we now save the camera matrix in double precision
{
if (!viewMat.fromFile(in, dataVersion, flags))
return false;
}
else
{
//camera matrix was saved in standard (float) precision
ccGLMatrix _viewMat;
if (!_viewMat.fromFile(in, dataVersion, flags))
return false;
viewMat = ccGLMatrixd(_viewMat.data());
}
//other parameters (dataVersion>=20)
QDataStream inStream(&in);
inStream >> pixelSize;
//before version 25, we were saving the inverse of 'pixelSize' ('globalZoom')
if (dataVersion < 25)
pixelSize = (pixelSize> ZERO_TOLERANCE ? 1.0f/pixelSize : 1.0f);
inStream >> zoom;
inStream >> defaultPointSize;
inStream >> defaultLineWidth;
inStream >> perspectiveView;
inStream >> objectCenteredView;
if (dataVersion >= 36) //we now save the camera center and pivot point in double precision
{
inStream >> pivotPoint.x;
inStream >> pivotPoint.y;
inStream >> pivotPoint.z;
inStream >> cameraCenter.x;
inStream >> cameraCenter.y;
inStream >> cameraCenter.z;
}
else
{
CCVector3 _pivotPoint;
ccSerializationHelper::CoordsFromDataStream(inStream,flags,_pivotPoint.u,3);
pivotPoint = CCVector3d::fromArray(_pivotPoint.u);
if (dataVersion >= 25) //after version 25 the camera center is saved as a separate point!
{
CCVector3 _cameraCenter;
ccSerializationHelper::CoordsFromDataStream(inStream,flags,_cameraCenter.u,3);
cameraCenter = CCVector3d::fromArray(_cameraCenter.u);
}
else
{
//FIXME: doesn't work in object-centered perspective!
cameraCenter = pivotPoint;
}
}
inStream >> fov;
inStream >> perspectiveAspectRatio;
if (dataVersion < 25) //screenPan has been replaced by cameraCenter(x,y) in object centered mode!
{
float screenPan[2];
inStream >> screenPan[0];
inStream >> screenPan[1];
if (objectCenteredView)
{
cameraCenter.x += static_cast<double>(screenPan[0]);
cameraCenter.y += static_cast<double>(screenPan[1]);
}
}
//ortho mode aspect ratio (dataVersion>=30)
if (dataVersion >= 30)
{
inStream >> orthoAspectRatio;
}
else
{
orthoAspectRatio = 1.0f;
}
return true;
}
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