void
aadldata_project_point_on_nearest_border(Aadlbox *aadlbox,Point *p,real *angle)
{
Rectangle rectangle;
rectangle.left = aadlbox->element.corner.x;
rectangle.top = aadlbox->element.corner.y;
rectangle.right = aadlbox->element.corner.x + aadlbox->element.width;
rectangle.bottom = aadlbox->element.corner.y + aadlbox->element.height;
aadlbox_project_point_on_rectangle(&rectangle, p, angle);
}
void
aadlbox_inclined_project_point_on_nearest_border(Aadlbox *aadlbox,Point *p,
real *angle)
{
/*
++++++B------------+ +----------++++++++
+ /000000000000/+ |0000000000| +
+ /000000000000/ + |0000000000| +
+ /000000000000/ + ----------> |0000000000| +
+ /000000000000/ + |0000000000| +
+/000000000000/ + |0000000000| +
A------------ ++++++ +----------++++++++
*/
Rectangle rectangle;
real w, h, delta_y, delta_x;
w = aadlbox->element.width;
h = aadlbox->element.height;
rectangle.top = aadlbox->element.corner.y;
rectangle.left = aadlbox->element.corner.x;
rectangle.bottom = aadlbox->element.corner.y + h;
rectangle.right = aadlbox->element.corner.x + w - w * AADLBOX_INCLINE_FACTOR;
delta_y = h - (p->y - aadlbox->element.corner.y);
delta_x = delta_y * (w * AADLBOX_INCLINE_FACTOR) / h;
p->x -= delta_x;
aadlbox_project_point_on_rectangle(&rectangle, p, angle);
delta_y = h - (p->y - aadlbox->element.corner.y);
delta_x = delta_y * (w * AADLBOX_INCLINE_FACTOR) / h;
p->x += delta_x;
}
static void
aadlbus_project_point_on_nearest_border(Aadlbox *aadlbox,Point *p,
real *angle)
{
Element *element = &aadlbox->element;
real w = element->width;
real h = element->height;
/* top left corner */
coord x1 = element->corner.x;
coord y1 = element->corner.y;
/* bottom right corner */
coord x2 = element->corner.x + w;
coord y2 = element->corner.y + h;
if ( p->x >= x1 + w*AADL_BUS_ARROW_SIZE_FACTOR
&& p->x <= x2 - w*AADL_BUS_ARROW_SIZE_FACTOR)
{
Rectangle rectangle;
rectangle.left = x1 + w*AADL_BUS_ARROW_SIZE_FACTOR;
rectangle.top = y1 + h*AADL_BUS_HEIGHT_FACTOR;
rectangle.right = x2 - w*AADL_BUS_ARROW_SIZE_FACTOR;
rectangle.bottom = y2 - h*AADL_BUS_HEIGHT_FACTOR;
aadlbox_project_point_on_rectangle(&rectangle, p, angle);
}
else
{
Point a, b, c, m;
real k1, k2;
/* left arrow */
if (p->x < x1 + w*AADL_BUS_ARROW_SIZE_FACTOR) {
*angle = M_PI;
/* m b
° /|
/ |
/ |
a---c
*/
a.x = x1;
a.y = y1 + h*0.5;
b.x = x1 + w*AADL_BUS_ARROW_SIZE_FACTOR;
b.y = (p->y<y1+0.5*h)?y1:y2; /* up or down */
c.x = b.x;
c.y = a.y;
}
/* right arrow */
else {
*angle = 0;
a.x = x2;
a.y = y1 + h*0.5;
b.x = x2 - w*AADL_BUS_ARROW_SIZE_FACTOR;
b.y = (p->y<y1+0.5*h)?y1:y2; /* up or down */
c.x = b.x;
c.y = a.y;
}
point_copy(&m, p);
/* intersection between (AB) and (MC) */
k1 = (b.y - a.y) / (b.x - a.x);
k2 = (m.y - c.y) / (m.x - c.x);
p->x = (m.y - a.y + k1*a.x - k2*m.x) / (k1 - k2);
p->y = a.y + k1 * (p->x - a.x);
}
}
