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#include "cad.h"
struct box {
struct component corner[4];
struct component side[4];
};
void a_box(struct box *box, struct topology *topo, struct constraints *constr) {
assert(box != NULL);
*box = (struct box){
.corner = {
{.type = COM_POINT},
{.type = COM_POINT},
{.type = COM_POINT},
{.type = COM_POINT},
},
.side = {
{.type = COM_LINE},
{.type = COM_LINE},
{.type = COM_LINE},
{.type = COM_LINE},
},
};
if(topo != NULL) {
add_fragment(topo, (struct topology_elem[]){
TOPO_MOVETO(&box->corner[0]),
TOPO_LINETO(&box->corner[1]),
TOPO_LINETO(&box->corner[2]),
TOPO_LINETO(&box->corner[3]),
TOPO_LINETO(&box->corner[0]),
TOPO_END(),
});
}
if(constr != NULL) {
add_constraint(constr, (struct constraint[]){
POINT_ON_LINE(&box->corner[0], &box->side[0]),
POINT_ON_LINE(&box->corner[1], &box->side[0]),
POINT_ON_LINE(&box->corner[1], &box->side[1]),
POINT_ON_LINE(&box->corner[2], &box->side[1]),
POINT_ON_LINE(&box->corner[2], &box->side[2]),
POINT_ON_LINE(&box->corner[3], &box->side[2]),
POINT_ON_LINE(&box->corner[0], &box->side[3]),
POINT_ON_LINE(&box->corner[3], &box->side[3]),
LL_ANGLE(&box->side[3], &box->side[0], DEG(90)),
LL_ANGLE(&box->side[1], &box->side[2], DEG(90)),
LL_ANGLE(&box->side[2], &box->side[3], DEG(90)),
CEND(),
});
}
}
void draw_from_constraints(struct constraints *c, struct topology *t, struct canvas *cv) {
struct drawing drawing = {};
bool rc = solve_constraints(c, &drawing);
assert(rc);
// Copy over all the parameter values to a new array
// @PERF: Maybe we should just store them in a separate array to start with
double *params = malloc(sizeof(double) * (c->length));
for(size_t i = 0; i < c->length; i++) {
params[i] = c->elements[i].v;
}
place_points(&drawing, params);
free(params);
begin_drawing(cv);
draw_topology(cv, t);
draw_constraints(cv, c);
end_drawing(cv);
}
int main(int argc, char *argv[]) {
struct constraints constraints = {};
struct topology topo = {};
struct box box1;
a_box(&box1, &topo, &constraints);
struct box box2;
a_box(&box2, &topo, &constraints);
struct box box3;
a_box(&box3, &topo, &constraints);
add_constraint(&constraints, (struct constraint[]){
PP_DISTANCE(&box1.corner[0], &box1.corner[1], 10),
PP_DISTANCE(&box1.corner[1], &box1.corner[2], 10),
PP_SAME(&box2.corner[0], &box1.corner[3]),
PP_SAME(&box2.corner[1], &box1.corner[2]),
PP_DISTANCE(&box2.corner[1], &box2.corner[2], 10),
PP_SAME(&box3.corner[0], &box2.corner[3]),
PP_DISTANCE(&box3.corner[1], &box3.corner[2], 10),
PP_DISTANCE(&box3.corner[0], &box3.corner[1], 7),
LL_ANGLE(&box3.side[0], &box1.side[0], DEG(-40)),
CEND(),
});
struct canvas canvas = {
.state = CANVAS_INIT,
.f = stdout,
};
draw_from_constraints(&constraints, &topo, &canvas);
}
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