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Gui: refactor FCSphereSheetProjector

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This commit is contained in:
wmayer
2023-11-29 14:22:15 +01:00
committed by Chris Hennes
parent f9f1f88426
commit e8d6955908
1 changed files with 58 additions and 41 deletions
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99
src/Gui/NavigationStyle.cpp
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@@ -86,48 +86,14 @@ public:
SbRotation getRotation(const SbVec3f &point1, const SbVec3f &point2) override
{
SbRotation rot = inherited::getRotation(point1, point2);
if (orbit == Trackball)
return rot;
else if (orbit == Turntable) {
SbVec3f axis;
float angle;
rot.getValue(axis, angle);
SbVec3f dif = point1 - point2;
if (fabs(dif[1]) > fabs(dif[0])) {
SbVec3f xaxis(1,0,0);
if (dif[1] < 0)
angle = -angle;
rot.setValue(xaxis, angle);
}
else {
SbVec3f zaxis(0,0,1);
this->worldToScreen.multDirMatrix(zaxis, zaxis);
if (zaxis[1] < 0) {
if (dif[0] < 0)
angle = -angle;
}
else {
if (dif[0] > 0)
angle = -angle;
}
rot.setValue(zaxis, angle);
}
return rot;
} else {
// Turntable without constraints
SbRotation zrot, xrot;
SbVec3f dif = point1 - point2;
SbVec3f zaxis(1,0,0);
zrot.setValue(zaxis, dif[1]);
SbVec3f xaxis(0,0,1);
this->worldToScreen.multDirMatrix(xaxis, xaxis);
xrot.setValue(xaxis, -dif[0]);
return zrot * xrot;
if (orbit == Turntable) {
return getTurntable(rot, point1, point2);
}
if (orbit == FreeTurntable) {
return getFreeTurntable(point1, point2);
}
return rot;
}
void setOrbitStyle(OrbitStyle style)
@@ -140,6 +106,57 @@ public:
return this->orbit;
}
private:
SbRotation getTurntable(SbRotation rot, const SbVec3f &point1, const SbVec3f &point2) const
{
// 0000333: Turntable camera rotation
SbVec3f axis;
float angle{};
rot.getValue(axis, angle);
SbVec3f dif = point1 - point2;
if (fabs(dif[1]) > fabs(dif[0])) {
SbVec3f xaxis(1,0,0);
if (dif[1] < 0) {
angle = -angle;
}
rot.setValue(xaxis, angle);
}
else {
SbVec3f zaxis(0,0,1);
this->worldToScreen.multDirMatrix(zaxis, zaxis);
if (zaxis[1] < 0) {
if (dif[0] < 0) {
angle = -angle;
}
}
else {
if (dif[0] > 0) {
angle = -angle;
}
}
rot.setValue(zaxis, angle);
}
return rot;
}
SbRotation getFreeTurntable(const SbVec3f &point1, const SbVec3f &point2) const
{
// Turntable without constraints
SbRotation zrot;
SbRotation xrot;
SbVec3f dif = point1 - point2;
SbVec3f zaxis(1,0,0);
zrot.setValue(zaxis, dif[1]);
SbVec3f xaxis(0,0,1);
this->worldToScreen.multDirMatrix(xaxis, xaxis);
xrot.setValue(xaxis, -dif[0]);
return zrot * xrot;
}
private:
SbMatrix worldToScreen;
OrbitStyle orbit{Trackball};