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#include "cad/solve.h"
#include <assert.h>
int main(int argc, char *argv[]) {
{
printf("Triangle by 3 distances\n");
struct constraints constraints = {};
struct component p1 = {.type = COM_POINT};
struct component p2 = {.type = COM_POINT};
struct component p3 = {.type = COM_POINT};
add_constraint(&constraints, (struct constraint[]){
PP_DISTANCE(&p1, &p2, 30),
PP_DISTANCE(&p1, &p3, 30),
PP_DISTANCE(&p2, &p3, 30),
CEND(),
});
struct drawing drawing = {};
bool solved = solve_constraints(&constraints, &drawing);
assert(solved);
free_drawing(&drawing);
free_constraints(&constraints);
}
{
printf("Triangle by 2 angles and a distance\n");
struct constraints constraints = {};
struct component l1 = {.type = COM_LINE};
struct component l2 = {.type = COM_LINE};
struct component l3 = {.type = COM_LINE};
struct component p1 = {.type = COM_POINT};
struct component p2 = {.type = COM_POINT};
struct component p3 = {.type = COM_POINT};
add_constraint(&constraints, (struct constraint[]){
POINT_ON_LINE(&p1, &l3),
POINT_ON_LINE(&p1, &l1),
POINT_ON_LINE(&p2, &l1),
POINT_ON_LINE(&p2, &l2),
POINT_ON_LINE(&p3, &l2),
POINT_ON_LINE(&p3, &l3),
PP_DISTANCE(&p1, &p2, 30),
LL_ANGLE(&l1, &l2, DEG(60)),
LL_ANGLE(&l2, &l3, DEG(60)),
CEND(),
});
struct drawing drawing = {};
bool solved = solve_constraints(&constraints, &drawing);
assert(solved);
free_drawing(&drawing);
free_constraints(&constraints);
}
{
printf("Two triangles sharing a point one defined by angles\n");
struct constraints constraints = {};
struct component p1 = {.type = COM_POINT};
struct component p2 = {.type = COM_POINT};
struct component p3 = {.type = COM_POINT};
struct component p4 = {.type = COM_POINT};
struct component p5 = {.type = COM_POINT};
struct component t1base = {.type = COM_LINE};
struct component t2base = {.type = COM_LINE};
struct component t2side = {.type = COM_LINE};
add_constraint(&constraints, (struct constraint[]){
// Make a triangle
PP_DISTANCE(&p1, &p2, 30),
PP_DISTANCE(&p1, &p3, 30),
PP_DISTANCE(&p2, &p3, 30),
POINT_ON_LINE(&p1, &t1base),
POINT_ON_LINE(&p2, &t1base),
// With another triangle sharing a point
PP_DISTANCE(&p4, &p5, 30),
PP_DISTANCE(&p3, &p4, 30),
LL_ANGLE(&t2side, &t2base, DEG(60)),
POINT_ON_LINE(&p3, &t2side),
POINT_ON_LINE(&p4, &t2side),
POINT_ON_LINE(&p4, &t2base),
POINT_ON_LINE(&p5, &t2base),
// The edge they don't share is constrained
LL_ANGLE(&t1base, &t2base, DEG(40)),
CEND(),
});
struct drawing drawing = {};
bool solved = solve_constraints(&constraints, &drawing);
assert(solved);
free_drawing(&drawing);
free_constraints(&constraints);
}
{
printf("Two triangles sharing a point with an angle constrained base\n");
struct constraints constraints = {};
struct component p1 = {.type = COM_POINT};
struct component p2 = {.type = COM_POINT};
struct component p3 = {.type = COM_POINT};
struct component p4 = {.type = COM_POINT};
struct component p5 = {.type = COM_POINT};
struct component t1base = {.type = COM_LINE};
struct component t2base = {.type = COM_LINE};
add_constraint(&constraints, (struct constraint[]){
// Make a triangle
PP_DISTANCE(&p1, &p2, 30),
PP_DISTANCE(&p1, &p3, 30),
PP_DISTANCE(&p2, &p3, 30),
POINT_ON_LINE(&p1, &t1base),
POINT_ON_LINE(&p2, &t1base),
// With another triangle sharing a point
PP_DISTANCE(&p4, &p5, 30),
PP_DISTANCE(&p3, &p4, 30),
PP_DISTANCE(&p3, &p5, 30),
POINT_ON_LINE(&p4, &t2base),
POINT_ON_LINE(&p5, &t2base),
// The edge they don't share is constrained
LL_ANGLE(&t1base, &t2base, DEG(40)),
CEND(),
});
struct drawing drawing = {};
bool solved = solve_constraints(&constraints, &drawing);
// @COMPL: We don't currently know how to derive an angle constraint
// from the rigid triangle. We'd probably need to do some sort of
// recursive solving, and even then you can't construct it without some
// sort of math in the construction phase.
assert(!solved);
// assert(solved);
free_drawing(&drawing);
free_constraints(&constraints);
}
return 0;
}
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