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Add visual indication for the rotation center

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Rexbas
2023-07-08 22:48:56 +02:00
parent 2559d7e7b6
commit 7fe3e1bd5d
4 changed files with 76 additions and 4 deletions
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64
src/Gui/View3DInventorViewer.cpp
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@@ -52,6 +52,7 @@
# include <Inventor/events/SoKeyboardEvent.h>
# include <Inventor/events/SoMotion3Event.h>
# include <Inventor/manips/SoClipPlaneManip.h>
# include <Inventor/nodes/SoAnnotation.h>
# include <Inventor/nodes/SoBaseColor.h>
# include <Inventor/nodes/SoCallback.h>
# include <Inventor/nodes/SoCube.h>
@@ -62,8 +63,10 @@
# include <Inventor/nodes/SoOrthographicCamera.h>
# include <Inventor/nodes/SoPerspectiveCamera.h>
# include <Inventor/nodes/SoPickStyle.h>
# include <Inventor/nodes/SoScale.h>
# include <Inventor/nodes/SoSelection.h>
# include <Inventor/nodes/SoSeparator.h>
# include <Inventor/nodes/SoSphere.h>
# include <Inventor/nodes/SoSwitch.h>
# include <Inventor/nodes/SoTransform.h>
# include <Inventor/nodes/SoTranslation.h>
@@ -337,6 +340,7 @@ View3DInventorViewer::View3DInventorViewer(QWidget* parent, const QtGLWidget* sh
, framebuffer(nullptr)
, axisCross(nullptr)
, axisGroup(nullptr)
, rotationCenterGroup(nullptr)
, editing(false)
, redirected(false)
, allowredir(false)
@@ -355,6 +359,7 @@ View3DInventorViewer::View3DInventorViewer(const QtGLFormat& format, QWidget* pa
, framebuffer(nullptr)
, axisCross(nullptr)
, axisGroup(nullptr)
, rotationCenterGroup(nullptr)
, editing(false)
, redirected(false)
, allowredir(false)
@@ -1268,6 +1273,65 @@ bool View3DInventorViewer::hasAxisCross()
return axisGroup;
}
void View3DInventorViewer::showRotationCenter(bool show)
{
SoNode* scene = getSceneGraph();
auto sep = static_cast<SoSeparator*>(scene);
if (show) {
SbBool found;
SbVec3f center = navigation->getRotationCenter(found);
if (!found) {
return;
}
if (!rotationCenterGroup) {
rotationCenterGroup = new SoSkipBoundingGroup();
auto sphere = new SoSphere();
// There needs to be a non-transparent object to ensure the transparent sphere works when opening an new empty document
auto hidden = new SoSeparator();
auto hiddenScale = new SoScale();
hiddenScale->scaleFactor = SbVec3f(0, 0, 0);
hidden->addChild(hiddenScale);
hidden->addChild(sphere);
auto complexity = new SoComplexity();
complexity->value = 1;
auto material = new SoMaterial();
material->emissiveColor = SbColor(1, 0, 0);
material->transparency = 0.8;
auto translation = new SoTranslation();
translation->translation.setValue(center);
auto annotation = new SoAnnotation();
annotation->addChild(complexity);
annotation->addChild(material);
annotation->addChild(sphere);
auto scaledSphere = new SoShapeScale();
scaledSphere->setPart("shape", annotation);
scaledSphere->scaleFactor = 4.0;
rotationCenterGroup->addChild(translation);
rotationCenterGroup->addChild(hidden);
rotationCenterGroup->addChild(scaledSphere);
sep->addChild(rotationCenterGroup);
}
}
else {
if (rotationCenterGroup) {
sep->removeChild(rotationCenterGroup);
rotationCenterGroup = nullptr;
}
}
}
void View3DInventorViewer::setNavigationType(Base::Type t)
{
if (this->navigation && this->navigation->getTypeId() == t)