本文整理汇总了C++中GLC_Matrix4x4::setMatTranslate方法的典型用法代码示例。如果您正苦于以下问题：C++ GLC_Matrix4x4::setMatTranslate方法的具体用法？C++ GLC_Matrix4x4::setMatTranslate怎么用？C++ GLC_Matrix4x4::setMatTranslate使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GLC_Matrix4x4的用法示例。
在下文中一共展示了GLC_Matrix4x4::setMatTranslate方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: gluPickMatrix
void glc::gluPickMatrix(GLdouble x, GLdouble y, GLdouble deltax, GLdouble deltay,
GLint viewport[4])
{
if (deltax <= 0 || deltay <= 0) {
return;
}
/* Translate and scale the picked region to the entire window */
GLC_Matrix4x4 translate;
translate.setMatTranslate((viewport[2] - 2 * (x - viewport[0])) / deltax, (viewport[3] - 2 * (y - viewport[1])) / deltay, 0.0);
GLC_Matrix4x4 scaling;
scaling.setMatScaling(viewport[2] / deltax, viewport[3] / deltay, 0.0);
GLC_ContextManager::instance()->currentContext()->glcMultMatrix(translate * scaling);
}示例2: gluLookAt
void glc::gluLookAt(GLdouble eyex, GLdouble eyey, GLdouble eyez, GLdouble centerx,
GLdouble centery, GLdouble centerz, GLdouble upx, GLdouble upy,
GLdouble upz)
{
float forward[3], side[3], up[3];
GLfloat m[4][4];
forward[0] = centerx - eyex;
forward[1] = centery - eyey;
forward[2] = centerz - eyez;
up[0] = upx;
up[1] = upy;
up[2] = upz;
normalize(forward);
/* Side = forward x up */
cross(forward, up, side);
normalize(side);
/* Recompute up as: up = side x forward */
cross(side, forward, up);
__gluMakeIdentityf(&m[0][0]);
m[0][0] = side[0];
m[1][0] = side[1];
m[2][0] = side[2];
m[0][1] = up[0];
m[1][1] = up[1];
m[2][1] = up[2];
m[0][2] = -forward[0];
m[1][2] = -forward[1];
m[2][2] = -forward[2];
GLC_Matrix4x4 translate;
translate.setMatTranslate(-eyex, -eyey, -eyez);
GLC_Matrix4x4 result= GLC_Matrix4x4(&m[0][0]) * translate;
GLC_ContextManager::instance()->currentContext()->glcMultMatrix(result);
}示例3: createCrossInstance
//////////////////////////////////////////////////////////////////////
// Private services Functions
//////////////////////////////////////////////////////////////////////
GLC_3DViewInstance GLC_RepCrossMover::createCrossInstance()
{
GLC_Polylines* pCross= new GLC_Polylines();
int nLgAxe;
const int winHSize= m_pViewport->viewHSize();
const int winVSize= m_pViewport->viewVSize();
if (winHSize > winVSize)
{
nLgAxe = static_cast<int>(static_cast<double>(winVSize) / 2.0);
}
else
{
nLgAxe = static_cast<int>(static_cast<double>(winHSize) / 2.0);
}
// Compute the length of camera's field of view
const double ChampsVision = 2 * (m_pViewport->cameraHandle()->distEyeTarget()) * tan((m_pViewport->viewAngle() * glc::PI / 180.0) / 2.0);
// the side of camera's square is mapped on Vertical length of window
// Axis length in OpenGL unit = length(Pixel) * (dimend GL / dimens Pixel)
const double dLgAxe= ((double)nLgAxe * ChampsVision / (double)winVSize) / 7;
const double dDecAxe= dLgAxe / 3;
//X axis
{
GLC_Point3d p1(-dLgAxe, 0, 0);
GLC_Point3d p2(-dDecAxe, 0, 0);
GLC_Point3d p3(dDecAxe, 0, 0);
GLC_Point3d p4(dLgAxe, 0, 0);
QList<GLC_Point3d> points;
points << p1 << p2 << p3 << p4;
pCross->addPolyline(points);
}
//Y axis
{
GLC_Point3d p1(0, -dLgAxe, 0);
GLC_Point3d p2(0, -dDecAxe, 0);
GLC_Point3d p3(0, dDecAxe, 0);
GLC_Point3d p4(0, dLgAxe, 0);
QList<GLC_Point3d> points;
points << p1 << p2 << p3 << p4;
pCross->addPolyline(points);
}
//Z axis
{
GLC_Point3d p1(0, 0, -dLgAxe);
GLC_Point3d p2(0, 0, -dDecAxe);
GLC_Point3d p3(0, 0, dDecAxe);
GLC_Point3d p4(0, 0, dLgAxe);
QList<GLC_Point3d> points;
points << p1 << p2 << p3 << p4;
pCross->addPolyline(points);
}
pCross->setWireColor(m_MainColor);
GLC_3DViewInstance crossInstance(pCross);
GLC_Matrix4x4 translation;
translation.setMatTranslate(m_pViewport->cameraHandle()->target());
crossInstance.setMatrix(translation);
return crossInstance;
}