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=== Transform Snap ===

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Snapping to other meshes from edit mode.

This commit adds the capacity to snap to vertice of other selected meshes. (This is for sanity reasons, big scenes would kill the speed)
So, if you want to snap to another mesh, just add it to the selection and you're done.

NOTE: Priority is given to vertice inside the current mesh (if they overlap with outside verts)
This commit is contained in:
Martin Poirier 2007-02-28 17:16:17 +00:00
parent 09a587ea51
commit f6ebfd6f80
1 changed files with 70 additions and 2 deletions
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72
source/blender/src/transform_snap.c
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@ -38,6 +38,7 @@
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "DNA_meshdata_types.h" // Temporary, for snapping to other unselected meshes
#include "DNA_space_types.h"
#include "DNA_userdef_types.h"
#include "DNA_view3d_types.h"
@ -53,10 +54,13 @@
#include "BIF_glutil.h"
#include "BIF_mywindow.h"
#include "BIF_resources.h"
#include "BIF_screen.h"
#include "BKE_global.h"
#include "BKE_utildefines.h"
#include "BSE_view.h"
#include "transform.h"
#include "mydevice.h" /* for KEY defines */
#include "blendef.h" /* for selection modes */
@ -78,6 +82,9 @@ void TargetSnapClosest(TransInfo *t);
float RotationBetween(TransInfo *t, float p1[3], float p2[3]);
float TranslationBetween(TransInfo *t, float p1[3], float p2[3]);
// Trickery
int findNearestVertFromObjects(int *dist, float *loc);
/****************** IMPLEMENTATIONS *********************/
void drawSnapping(TransInfo *t)
@ -318,15 +325,25 @@ void CalcSnapGeometry(TransInfo *t, float *vec)
/*if (G.scene->selectmode & B_SEL_VERT)*/
{
EditVert *nearest=NULL;
float vec[3];
int found = 0;
int dist = 40; // Use a user defined value here
// use findnearestverts in vert mode, others in other modes
nearest = findnearestvert(&dist, SELECT, 1);
if (nearest != NULL)
found = findNearestVertFromObjects(&dist, vec);
if (found == 1)
{
VECCOPY(t->tsnap.snapPoint, vec);
t->tsnap.status |= POINT_INIT;
}
/* If there's no outside vertex nearer, but there's one in this mesh
*/
else if (nearest != NULL)
{
VECCOPY(t->tsnap.snapPoint, nearest->co);
Mat4MulVecfl(G.obedit->obmat, t->tsnap.snapPoint);
t->tsnap.status |= POINT_INIT;
@ -456,6 +473,57 @@ void TargetSnapClosest(TransInfo *t)
t->tsnap.status |= TARGET_INIT;
}
}
/*================================================================*/
int findNearestVertFromObjects(int *dist, float *loc) {
Base *base;
int retval = 0;
short mval[2];
getmouseco_areawin(mval);
base= FIRSTBASE;
for ( base = FIRSTBASE; base != NULL; base = base->next ) {
if ( TESTBASE(base) && base != BASACT ) {
Object *ob = base->object;
printf("object\n");
if (ob->type == OB_MESH) {
Mesh *me = ob->data;
int i;
printf("mesh\n");
for( i = 0; i < me->totvert; i++) {
MVert vert = me->mvert[i];
float gloc[3];
int sloc[2];
int curdist;
VECCOPY(gloc, vert.co);
Mat4MulVecfl(ob->obmat, gloc);
project_int(gloc, sloc);
sloc[0] -= mval[0];
sloc[1] -= mval[1];
curdist = abs(sloc[0]) + abs(sloc[1]);
printf("dist = %d\n", curdist);
if (curdist < *dist) {
*dist = curdist;
retval = 1;
VECCOPY(loc, gloc);
}
}
}
}
}
return retval;
}
/*================================================================*/