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[#17388] snap view to main views while rotating from Roelf De Kock (kiemdoder)

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hold down ctrl when rotating the viewport
This commit is contained in:
Campbell Barton 2008-09-22 10:00:31 +00:00
parent d1dedb2cef
commit eb37006e53
1 changed files with 84 additions and 0 deletions
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84
source/blender/src/view.c
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@ -94,6 +94,9 @@
#define TRACKBALLSIZE (1.1)
#define BL_NEAR_CLIP 0.001
#define COS45 0.70710678118654746
#define SIN45 COS45
/* local prototypes ----------*/
void setcameratoview3d(void); /* windows.c & toets.c */
@ -1104,6 +1107,87 @@ void viewmove(int mode)
VecAddf(G.vd->ofs, G.vd->ofs, obofs);
}
}
/* check for view snap */
if (G.qual==LR_CTRLKEY){
int i;
float viewmat[3][3];
static const float thres = 0.93; //cos(20 deg);
static float snapquats[39][6] = {
/*{q0, q1, q3, q4, view, oposite_direction}*/
{COS45, -SIN45, 0.0, 0.0, 1, 0}, //front
{0.0, 0.0, -SIN45, -SIN45, 1, 1}, //back
{1.0, 0.0, 0.0, 0.0, 7, 0}, //top
{0.0, -1.0, 0.0, 0.0, 7, 1}, //bottom
{0.5, -0.5, -0.5, -0.5, 3, 0}, //left
{0.5, -0.5, 0.5, 0.5, 3, 1}, //right
/* some more 45 deg snaps */
{0.65328145027160645, -0.65328145027160645, 0.27059805393218994, 0.27059805393218994, 0, 0},
{0.92387950420379639, 0.0, 0.0, 0.38268342614173889, 0, 0},
{0.0, -0.92387950420379639, 0.38268342614173889, 0.0, 0, 0},
{0.35355335474014282, -0.85355335474014282, 0.35355338454246521, 0.14644660055637360, 0, 0},
{0.85355335474014282, -0.35355335474014282, 0.14644660055637360, 0.35355338454246521, 0, 0},
{0.49999994039535522, -0.49999994039535522, 0.49999997019767761, 0.49999997019767761, 0, 0},
{0.27059802412986755, -0.65328145027160645, 0.65328145027160645, 0.27059802412986755, 0, 0},
{0.65328145027160645, -0.27059802412986755, 0.27059802412986755, 0.65328145027160645, 0, 0},
{0.27059799432754517, -0.27059799432754517, 0.65328139066696167, 0.65328139066696167, 0, 0},
{0.38268336653709412, 0.0, 0.0, 0.92387944459915161, 0, 0},
{0.0, -0.38268336653709412, 0.92387944459915161, 0.0, 0, 0},
{0.14644658565521240, -0.35355335474014282, 0.85355335474014282, 0.35355335474014282, 0, 0},
{0.35355335474014282, -0.14644658565521240, 0.35355335474014282, 0.85355335474014282, 0, 0},
{0.0, 0.0, 0.92387944459915161, 0.38268336653709412, 0, 0},
{-0.0, 0.0, 0.38268336653709412, 0.92387944459915161, 0, 0},
{-0.27059802412986755, 0.27059802412986755, 0.65328133106231689, 0.65328133106231689, 0, 0},
{-0.38268339633941650, 0.0, 0.0, 0.92387938499450684, 0, 0},
{0.0, 0.38268339633941650, 0.92387938499450684, 0.0, 0, 0},
{-0.14644658565521240, 0.35355338454246521, 0.85355329513549805, 0.35355332493782043, 0, 0},
{-0.35355338454246521, 0.14644658565521240, 0.35355332493782043, 0.85355329513549805, 0, 0},
{-0.49999991059303284, 0.49999991059303284, 0.49999985098838806, 0.49999985098838806, 0, 0},
{-0.27059799432754517, 0.65328145027160645, 0.65328139066696167, 0.27059799432754517, 0, 0},
{-0.65328145027160645, 0.27059799432754517, 0.27059799432754517, 0.65328139066696167, 0, 0},
{-0.65328133106231689, 0.65328133106231689, 0.27059793472290039, 0.27059793472290039, 0, 0},
{-0.92387932538986206, 0.0, 0.0, 0.38268333673477173, 0, 0},
{0.0, 0.92387932538986206, 0.38268333673477173, 0.0, 0, 0},
{-0.35355329513549805, 0.85355329513549805, 0.35355329513549805, 0.14644657075405121, 0, 0},
{-0.85355329513549805, 0.35355329513549805, 0.14644657075405121, 0.35355329513549805, 0, 0},
{-0.38268330693244934, 0.92387938499450684, 0.0, 0.0, 0, 0},
{-0.92387938499450684, 0.38268330693244934, 0.0, 0.0, 0, 0},
{-COS45, 0.0, 0.0, SIN45, 0, 0},
{COS45, 0.0, 0.0, SIN45, 0, 0},
{0.0, 0.0, 0.0, 1.0, 0, 0}
};
QuatToMat3(G.vd->viewquat, viewmat);
for (i = 0 ; i < 39; i++){
float snapmat[3][3];
float view = (int)snapquats[i][4];
float oposite_dir = (int)snapquats[i][5];
QuatToMat3(snapquats[i], snapmat);
if ((Inpf(snapmat[0], viewmat[0]) > thres) &&
(Inpf(snapmat[1], viewmat[1]) > thres) &&
(Inpf(snapmat[2], viewmat[2]) > thres)){
QUATCOPY(G.vd->viewquat, snapquats[i]);
G.vd->view = view;
if (view){
if (oposite_dir){
G.vd->flag2 |= V3D_OPP_DIRECTION_NAME;
}else{
G.vd->flag2 &= ~V3D_OPP_DIRECTION_NAME;
}
}
break;
}
}
}
}
else if(mode==1) { /* translate */
if(G.vd->persp==V3D_CAMOB) {