void GLWidget::paintGL ()
{
qglClearColor (clearColor);
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity ();
glTranslatef (0.0f, 0.0f, -10.0f);
glRotatef (zRot / 16.0f, 0.0f, 0.0f, 1.0f);
glRotatef (xRot / 16.0f, 1.0f, 0.0f, 0.0f);
glRotatef (yRot / 16.0f, 0.0f, 1.0f, 0.0f);
glScalef (scale, scale, scale);
glDisable (GL_LIGHTING);
/// Coordinate Lines
glLineWidth(3);
glBegin(GL_LINES);
glColor4f (1, 0, 0, 1);
glVertex3d(100, 0, 0);
glVertex3d(-100, 0, 0);
glEnd();
qglColor(Qt::white);
renderText(1, 0 , 0, QString::fromUtf8("X"), QFont() , 300);
glBegin(GL_LINES);
glColor4f (0, 1, 0, 1);
glVertex3d(0, 100, 0);
glVertex3d(0, -100, 0);
glEnd();
qglColor(Qt::white);
renderText(0, 1 , 0, QString::fromUtf8("Y"), QFont() , 300);
glBegin(GL_LINES);
glColor4f (0, 0, 1, 1);
glVertex3d(0, 0, 100);
glVertex3d(0, 0, -100);
glEnd();
qglColor(Qt::white);
renderText(0, 0 , 1, QString::fromUtf8("Z"), QFont() , 300);
glLineWidth(1);
/// Lights
glEnable (GL_LIGHTING);
glLightfv(GL_LIGHT1, GL_AMBIENT, LightAmbient);
glLightfv(GL_LIGHT1, GL_DIFFUSE, LightDiffuse);
glLightfv(GL_LIGHT1, GL_POSITION, LightPosition);
glEnable (GL_LIGHT1);
glMaterialfv (GL_FRONT_AND_BACK, GL_DIFFUSE, gold_color);
if (options != ONLY_APPROXIMATION)
draw_function (function_index, draw_mesh);
glMaterialfv (GL_FRONT_AND_BACK, GL_DIFFUSE, blue_color);
residual = 0.;
if (options != ONLY_FUNCTION)
{
draw_approx = true;
draw_function (function_index, draw_mesh);
draw_approx = false;
}
emit sendmsg (trUtf8 ("Zoom %1, Residual: %3").arg (scale).arg (residual));
}
void draw_menu_iter(void)
{
static bool sparse = FALSE;
Simulation *sim = stgs.linked_sim;
#if LOOP_OPT_STEPS
static size_t prev_steps = 0;
bool do_draw = sim->steps-prev_steps >= exp(max(stgs.speed-LOOP_OPT_SPEED, 0));
if (do_draw) {
#endif
draw_dir_arrow();
draw_function();
draw_steps();
#if LOOP_OPT_STEPS
prev_steps = sim->steps;
}
#endif
if (!sparse && is_grid_sparse(sim->grid)) {
draw_edge();
sparse = TRUE;
do_draw = TRUE;
}
#if LOOP_OPT_STEPS
if (do_draw) {
#endif
wnoutrefresh(menuw);
#if LOOP_OPT_STEPS
}
#endif
}
void recalculate_and_draw(Coordinate_system *cs, char expr[], char number_of_derivatives, float step, bool clear_all)
{
calc_function(cs, expr, number_of_derivatives, 0.001);
if(clear_all)
draw_empty_chart(cs->get_axis_coord('x'), cs->get_axis_coord('y'), GRAPH_WIDHT, GRAPH_HEIGHT, cs->get_scale_of_axis('x'), cs->get_scale_of_axis('y'));
draw_function(cs, expr, number_of_derivatives);
}
int main() {
complex value;
double x0;
FILE *file = fopen("data.txt", "r");
fscanf(file, "%d%lf%lf", &n, &h, &x0);
array_values = new double *[n];
for (int i = 0; i < n; i++) array_values[i] = new double [2];
array_values[0][0] = x0;
array_values[0][1] = f(x0);
for (int i = 1; i < n; i++) {
array_values[i][0] = x0 + i * h;
array_values[i][1] = f(array_values[i][0]);
}
fclose(file);
printf(" X Y\n");
for (int i = 0; i < n; i++) {
printf("%lf %lf\n", array_values[i][0], array_values[i][1]);
}
printf("\n");
value = trigonometric_interpolation(point);
printf("Result: %lf %lf\n\n", value.real, value.image);
init_window();
draw_function(-10, 10);
draw_real_part(-10, 10);
draw_image_part(-10, 10);
system("pause");
}
void draw_menu_full(void)
{
draw_edge();
draw_logo();
draw_color_list();
draw_init_size();
draw_direction();
draw_speed();
draw_function();
draw_control_buttons();
draw_io_buttons();
draw_size();
draw_steps();
draw_labels();
wnoutrefresh(menuw);
if (dialogw) {
draw_dialog();
}
}