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Hello daniel,
Now I know how to add/ modify(rotate/ translate) a piont. But I cannot find a method to remove a point by a given index from a ccPointCloud object.
Could you help me?
Thank you very much.

Yes, it is necessary.

Thank you, Daniel!
I got it. To rotate a point cloud object or a mesh:

#include <cmath>

ccPointCloud pc; // pc is a point cloud.
pc.addPoint(CCVector3(x, y, z)); // add a point
...... // here, we can add some more points

CCVector3 axis3dx(1, 0, 0); // rotate around the x-axis
CCVector3 axis3dy ...

Hello, It is me again.

As the title shown, I want to change the xyz value of a point cloud object.
And I want to rotate the object.

ccPointCloud pc;
pc.addPoint(CCVector3(x, y, z));
......
// at here, I want to change the xyz value of pc.


I have read a former post(Move mesh in plugin), in ...

Thank you, daniel!

My issue has been solved perfectly.

Let me make a Summarize:

To refresh the display of a point cloud, just simply call "pc->redrawDisplay();":

ccPointCloud *pc;
......
pc->redrawDisplay(); // refresh


Before adding a Point to pc, we should reserve memory first:

pc ...

Thank you, daniel!

Your suggestion have solved my issue perfectly.
What needs to be added is “pc->setCurrentDisplayedScalarField(0); ”

This is the modified code:


ccPointCloud *pc;
......
pc->setDisplay(m_app->getActiveGLWindow());
pc->addScalarField("DefaultScalarField");
pc ...

I solved this problem by creating a thread.
To create a thread to do something like sleep().

This way:

#include <thread>
#include <windows.h>

void Scanner(int a){
......
Sleep(100);
}
......

std::thread *lidarThread;

//To run Scanner(1) in a thread;
lidarThread = new std::thread(Scanner, 1 ...

Hello,
I try to add ScalarValue while adding points.

I tried these codes, but nothing happened.


ccPointCloud *pc;
......
pc->setDisplay(m_app->getActiveGLWindow());
pc->addScalarField("DefaultScalarField");
pc->enableScalarField();
pc->setCurrentScalarField(0);
pc->showColors(true);
pc ...

Thank you for your reply, WargodHernandez.

I have tried these, but it does not work:


ccMainAppInterface *m_app;
ccHObject *container;
ccPointCloud *pc;

container = new ccHObject("Scan001");
pc = new ccPointCloud("RealScan");
container->addChild(pc);
m_app->addToDB(container, true, true ...

Hello!

During running my plugin, I add points in a ccPointCloud object. How can I refresh it so that I can get a real-time updated pointcloud view?


ccMainAppInterface *m_app;
ccHObject *container;
ccPointCloud *pc;

container = new ccHObject("Scan001");
pc = new ccPointCloud("RealScan ...