To draw a line, circle, box on the GEngine

- Change the background color

initData.SetBackgroundColor(CGColor(0.8f, 0.8f, 0.8f));



- Code for drawing a line

void CGSampleView::OnButtonDrawLine()
{
// Creates a new line object
CGObjectLine2D *pObjLine2D = new CGObjectLine2D;

// Defines a line data
CGLine2D line;
line.SetPoint(CGPoint2D(100, 100), true);
line.SetPoint(CGPoint2D(200, 300), false);

// Set the line data to the line object
pObjLine2D->SetLine2D(line);

// Adds the line object to the DB
m_3DDB.AddObject(pObjLine2D);

// Renders all object in the GVIEWLAYER_MAIN DB
m_3DView.Render(GVIEWLAYER_MAIN);

// Just redraws rendered all object in view;
m_3DView.Redraw();
}

- Runs a code for drawing a line

- Code for drawing a circle

void CGSampleView::OnButtonDrawCircle()
{
// Creates a new circle object
CGObjectCircle3D *pObCircle3D = new CGObjectCircle3D;

// Defines a circle data
CGCircle3D circle3D;
{
// center position
circle3D.SetCenterPos(CGPoint3D(100, 100, 10));

// radius
circle3D.SetRadius(30);
}

// Sets the circle data to the circle object
pObCircle3D->SetCircle3D(circle3D);

// Adds the circle object to the DB
m_3DDB.AddObject(pObCircle3D);

// Renders all object in the GVIEWLAYER_MAIN DB
m_3DView.Render(GVIEWLAYER_MAIN);

// Just redraws rendered all object in view.
m_3DView.Redraw();
}

- Runs a code for drawing a circle

- Code for drawing a box

void CGSampleView::OnButtonDrawBox()

{

// Creates a new box object.

CGObjectBox *pObBox = new CGObjectBox;

// Defines a box data 

CGBox box;

{

// Position of the box bottom center.

box.SetPos(CGPoint3D(-100, -100, 0), true);

// Position of the box top center.

box.SetPos(CGPoint3D(-100, -100, 100), false);

// Height of the box

box.SetHeight(50.0f);

// Width of the box;

box.SetWidth(50.0f);

}

// Sets the box data to the box object

pObBox->SetBox(box);

// Adds a box object in the DB

m_3DDB.AddObject(pObBox);

// Renders all object in the GVIEWLAYER_MAIN DB;

m_3DView.Render(GVIEWLAYER_MAIN);

// Just redraws rendered all object in view.

m_3DView.Redraw();

}

- Runs a code for drawing a box

It's too simple and bored.

Next time, I will make a code for mouse control.

It's a zoom all, zoom rotate, zoom pan.