A highlighted part is shown with a white halo.
This is useful for indicating for instance selection. The highlighting mechanism applies to all types of parts:
- Data parts
- Isosurfaces
- Isovolumes
- Cutting planes
- Geometry parts (using halo effect)
This example shows how highlight parts as a response to a mouse press event.
- Pick event
- Send a notification when a pick has occurred.
Attach to the mouse pressed event in the viewer. Create a cee::Ray object from the mouse event coordinates and emit a picked signal using this ray.
void TutorialRunnerViewer::mousePressEvent(QMouseEvent* event)
{
if (!theView) return;
m_mainWindow->pick(ray);
if (inputHandler)
{
update();
}
- Create the model and connection
Create a geometry model with four boxes.
- Respond to a picking event sent from the viewer
Highlight the last hit box
void TutorialRunnerMainWindow::pick(
const cee::Ray& ray)
{
if (!geometryModel)
{
return;
}
{
return;
}
for (
size_t i = 0; i < geometryModel->
partCount(); i++)
{
if (part == hitItem.
part())
{
}
}
}