C++ (Cpp) ts_bspline_buckle Examples

Example #1

File: tinysplinecpp.cpp Project: AmiArnab/tinyspline

ts::BSpline ts::BSpline::buckle(const ts::rational b) const
{
    ts::BSpline bs;
    const tsError err = ts_bspline_buckle(&bspline, b, &bs.bspline);
    if (err < 0)
        throw std::runtime_error(ts_enum_str(err));
    return bs;
}

Example #2

File: buckle.c Project: retuxx/tinyspline

void display(void)
{
	size_t i;
	tsBSpline buckled;
	tsReal *ctrlp, *knots;

	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

	ts_bspline_buckle(&spline, b, &buckled, NULL);

	/* draw buckled */
	ts_bspline_control_points(&buckled, &ctrlp, NULL);
	ts_bspline_knots(&buckled, &knots, NULL);
	glColor3f(1.0, 1.0, 1.0);
	glLineWidth(3);
	gluBeginCurve(theNurb);
		gluNurbsCurve(
			theNurb, 
			(GLint)ts_bspline_num_knots(&buckled),
			knots,
			(GLint)ts_bspline_dimension(&buckled),
			ctrlp,
			(GLint)ts_bspline_order(&buckled),
			GL_MAP1_VERTEX_3
		);
	gluEndCurve(theNurb);

	/* draw control points */
	glColor3f(1.0, 0.0, 0.0);
	glPointSize(5.0);
	glBegin(GL_POINTS);
	  for (i = 0; i < ts_bspline_num_control_points(&buckled); i++)
		 glVertex3fv(&ctrlp[i * ts_bspline_dimension(&buckled)]);
	glEnd();

	ts_bspline_free(&buckled);
	free(ctrlp);
	free(knots);

	b -= 0.001f;
	if (b < 0.f)
		b = 1.f;

	glutSwapBuffers();
	glutPostRedisplay();
}