Graphics

jVersteegen wrote:

the invisible part of the panel turns up black

Mark Salsbery
Microsoft MVP - Visual C++

joost.versteegen wrote:

is there any way to change the background color to white?

Mark Salsbery
Microsoft MVP - Visual C++

joost.versteegen wrote:

have a nice weekend!

Mark Salsbery
Microsoft MVP - Visual C++

AmitDey wrote:

I don't want to pay for the models.

void DrawPoint( double x, double y )
{
     ...paint single brush dab.
}

void DrawLine( double x0, double y0, double x1, double y1, double spacing )
{
	// get delta
	double dx = x1-x0;
	double dy = y1-y0;
	
	// Get length
	double dist = sqrt( dx * dx + dy * dy );

	// Normalize
	dx *= 1.0 / dist;
	dy *= 1.0 / dist;

	// Travel down the line ( x0, y0 ) ( x1, y1 )
	for ( double p = spacing; p <= dist; p+= spacing ) {
		// Draw a single point at spacing pixels apart.
		double px = x0 + p * dx;
		double py = y0 + p * dy;
		DrawPoint( px, py );
	}
}

void MyPaintCode( )
{
	for ( int i = 0; i < NumberofPoints; i++ ) {
                // Draw lines between input points with 1 pixel spacing.
		PaintLine( Input_x[ i ], Input_y[ i ], 1.0 );
	}
}