/* convert the coordinates from the given stroke point into 3d-coordinates
* - assumes that the active space is the 3D-View
*/
static void gp_strokepoint_convertcoords(bContext *C, bGPDstroke *gps, bGPDspoint *pt, float p3d[3], rctf *subrect)
{
Scene *scene = CTX_data_scene(C);
View3D *v3d = CTX_wm_view3d(C);
ARegion *ar = CTX_wm_region(C);
if (gps->flag & GP_STROKE_3DSPACE) {
/* directly use 3d-coordinates */
copy_v3_v3(p3d, &pt->x);
}
else {
const float *fp = ED_view3d_cursor3d_get(scene, v3d);
float mvalf[2];
/* get screen coordinate */
if (gps->flag & GP_STROKE_2DSPACE) {
View2D *v2d = &ar->v2d;
UI_view2d_view_to_region_fl(v2d, pt->x, pt->y, &mvalf[0], &mvalf[1]);
}
else {
if (subrect) {
mvalf[0] = (((float)pt->x / 100.0f) * BLI_rctf_size_x(subrect)) + subrect->xmin;
mvalf[1] = (((float)pt->y / 100.0f) * BLI_rctf_size_y(subrect)) + subrect->ymin;
}
else {
mvalf[0] = (float)pt->x / 100.0f * ar->winx;
mvalf[1] = (float)pt->y / 100.0f * ar->winy;
}
}
ED_view3d_win_to_3d(ar, fp, mvalf, p3d);
}
}
static int armature_click_extrude_invoke(bContext *C, wmOperator *op, const wmEvent *event)
{
/* TODO most of this code is copied from set3dcursor_invoke,
* it would be better to reuse code in set3dcursor_invoke */
/* temporarily change 3d cursor position */
Scene *scene;
ARegion *ar;
View3D *v3d;
float *fp, tvec[3], oldcurs[3], mval_f[2];
int retv;
scene = CTX_data_scene(C);
ar = CTX_wm_region(C);
v3d = CTX_wm_view3d(C);
fp = ED_view3d_cursor3d_get(scene, v3d);
copy_v3_v3(oldcurs, fp);
VECCOPY2D(mval_f, event->mval);
ED_view3d_win_to_3d(ar, fp, mval_f, tvec);
copy_v3_v3(fp, tvec);
/* extrude to the where new cursor is and store the operation result */
retv = armature_click_extrude_exec(C, op);
/* restore previous 3d cursor position */
copy_v3_v3(fp, oldcurs);
return retv;
}
static bool stroke_elem_project_fallback(
const struct CurveDrawData *cdd,
const int mval_i[2], const float mval_fl[2],
const float surface_offset, const float radius,
const float location_fallback_depth[3],
float r_location_world[3], float r_location_local[3],
float r_normal_world[3], float r_normal_local[3])
{
bool is_depth_found = stroke_elem_project(
cdd, mval_i, mval_fl,
surface_offset, radius,
r_location_world, r_normal_world);
if (is_depth_found == false) {
ED_view3d_win_to_3d(cdd->vc.v3d, cdd->vc.ar, location_fallback_depth, mval_fl, r_location_world);
zero_v3(r_normal_local);
}
mul_v3_m4v3(r_location_local, cdd->vc.obedit->imat, r_location_world);
if (!is_zero_v3(r_normal_world)) {
copy_v3_v3(r_normal_local, r_normal_world);
mul_transposed_mat3_m4_v3(cdd->vc.obedit->obmat, r_normal_local);
normalize_v3(r_normal_local);
}
else {
zero_v3(r_normal_local);
}
return is_depth_found;
}
/**
* \brief get the ID from the screen.
*/
static void depthdropper_depth_sample_pt(
bContext *C, DepthDropper *ddr, int mx, int my, float *r_depth)
{
/* we could use some clever */
bScreen *screen = CTX_wm_screen(C);
ScrArea *sa = BKE_screen_find_area_xy(screen, SPACE_TYPE_ANY, mx, my);
Scene *scene = CTX_data_scene(C);
ScrArea *area_prev = CTX_wm_area(C);
ARegion *ar_prev = CTX_wm_region(C);
ddr->name[0] = '\0';
if (sa) {
if (sa->spacetype == SPACE_VIEW3D) {
ARegion *ar = BKE_area_find_region_xy(sa, RGN_TYPE_WINDOW, mx, my);
if (ar) {
struct Depsgraph *depsgraph = CTX_data_depsgraph(C);
View3D *v3d = sa->spacedata.first;
RegionView3D *rv3d = ar->regiondata;
/* weak, we could pass in some reference point */
const float *view_co = v3d->camera ? v3d->camera->obmat[3] : rv3d->viewinv[3];
const int mval[2] = {mx - ar->winrct.xmin, my - ar->winrct.ymin};
float co[3];
CTX_wm_area_set(C, sa);
CTX_wm_region_set(C, ar);
/* grr, always draw else we leave stale text */
ED_region_tag_redraw(ar);
view3d_operator_needs_opengl(C);
if (ED_view3d_autodist(depsgraph, ar, v3d, mval, co, true, NULL)) {
const float mval_center_fl[2] = {(float)ar->winx / 2, (float)ar->winy / 2};
float co_align[3];
/* quick way to get view-center aligned point */
ED_view3d_win_to_3d(v3d, ar, co, mval_center_fl, co_align);
*r_depth = len_v3v3(view_co, co_align);
bUnit_AsString2(ddr->name,
sizeof(ddr->name),
(double)*r_depth,
4,
B_UNIT_LENGTH,
&scene->unit,
false);
}
else {
BLI_strncpy(ddr->name, "Nothing under cursor", sizeof(ddr->name));
}
}
}
}
CTX_wm_area_set(C, area_prev);
CTX_wm_region_set(C, ar_prev);
}
static bool mesh_bisect_interactive_calc(
bContext *C, wmOperator *op,
BMEditMesh *em,
float plane_co[3], float plane_no[3])
{
wmGesture *gesture = op->customdata;
BisectData *opdata;
ARegion *ar = CTX_wm_region(C);
RegionView3D *rv3d = ar->regiondata;
int x_start = RNA_int_get(op->ptr, "xstart");
int y_start = RNA_int_get(op->ptr, "ystart");
int x_end = RNA_int_get(op->ptr, "xend");
int y_end = RNA_int_get(op->ptr, "yend");
/* reference location (some point in front of the view) for finding a point on a plane */
const float *co_ref = rv3d->ofs;
float co_a_ss[2] = {x_start, y_start}, co_b_ss[2] = {x_end, y_end}, co_delta_ss[2];
float co_a[3], co_b[3];
const float zfac = ED_view3d_calc_zfac(rv3d, co_ref, NULL);
opdata = gesture->userdata;
/* view vector */
ED_view3d_win_to_vector(ar, co_a_ss, co_a);
/* view delta */
sub_v2_v2v2(co_delta_ss, co_a_ss, co_b_ss);
ED_view3d_win_to_delta(ar, co_delta_ss, co_b, zfac);
/* cross both to get a normal */
cross_v3_v3v3(plane_no, co_a, co_b);
normalize_v3(plane_no); /* not needed but nicer for user */
/* point on plane, can use either start or endpoint */
ED_view3d_win_to_3d(ar, co_ref, co_a_ss, plane_co);
if (opdata->is_first == false)
EDBM_redo_state_restore(opdata->mesh_backup, em, false);
opdata->is_first = false;
return true;
}
/* convert the coordinates from the given stroke point into 3d-coordinates
* - assumes that the active space is the 3D-View
*/
static void gp_strokepoint_convertcoords(bContext *C, bGPDstroke *gps, bGPDspoint *pt, float p3d[3], rctf *subrect)
{
Scene *scene = CTX_data_scene(C);
View3D *v3d = CTX_wm_view3d(C);
ARegion *ar = CTX_wm_region(C);
if (gps->flag & GP_STROKE_3DSPACE) {
/* directly use 3d-coordinates */
copy_v3_v3(p3d, &pt->x);
}
else {
const float *fp = give_cursor(scene, v3d);
float mvalf[2];
/* get screen coordinate */
if (gps->flag & GP_STROKE_2DSPACE) {
int mvali[2];
View2D *v2d = &ar->v2d;
UI_view2d_view_to_region(v2d, pt->x, pt->y, mvali, mvali + 1);
VECCOPY2D(mvalf, mvali);
}
else {
if (subrect) {
mvalf[0] = (((float)pt->x / 100.0f) * BLI_rctf_size_x(subrect)) + subrect->xmin;
mvalf[1] = (((float)pt->y / 100.0f) * BLI_rctf_size_y(subrect)) + subrect->ymin;
}
else {
mvalf[0] = (float)pt->x / 100.0f * ar->winx;
mvalf[1] = (float)pt->y / 100.0f * ar->winy;
}
}
/* convert screen coordinate to 3d coordinates
* - method taken from editview.c - mouse_cursor()
*/
ED_view3d_win_to_3d(ar, fp, mvalf, p3d);
}
}
void ED_view3d_win_to_3d_int(const ARegion *ar, const float depth_pt[3], const int mval[2], float out[3])
{
const float mval_fl[2] = {mval[0], mval[1]};
ED_view3d_win_to_3d(ar, depth_pt, mval_fl, out);
}