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Fixed import of model rotated clockwise from 3mf

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This commit is contained in:
Enrico Turri 2018-06-07 16:13:32 +02:00
parent b2b95d590f
commit 766d1d52a9
1 changed files with 20 additions and 0 deletions
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20
xs/src/libslic3r/Format/3mf.cpp
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@ -1271,6 +1271,7 @@ namespace Slic3r {
if ((std::abs(sx - sy) > 0.00001) || (std::abs(sx - sz) > 0.00001))
return;
#if 0 // use quaternions
// rotations (extracted using quaternion)
double inv_sx = 1.0 / sx;
double inv_sy = 1.0 / sy;
@ -1331,6 +1332,25 @@ namespace Slic3r {
if (angle_z < 0.0)
angle_z += 2.0 * PI;
}
#else // use eigen library
double inv_sx = 1.0 / sx;
double inv_sy = 1.0 / sy;
double inv_sz = 1.0 / sz;
Eigen::Matrix3d m3x3;
m3x3 << (double)matrix(0, 0) * inv_sx, (double)matrix(0, 1) * inv_sy, (double)matrix(0, 2) * inv_sz,
(double)matrix(1, 0) * inv_sx, (double)matrix(1, 1) * inv_sy, (double)matrix(1, 2) * inv_sz,
(double)matrix(2, 0) * inv_sx, (double)matrix(2, 1) * inv_sy, (double)matrix(2, 2) * inv_sz;
Eigen::AngleAxisd rotation;
rotation.fromRotationMatrix(m3x3);
// invalid rotation axis, we currently handle only rotations around Z axis
if ((rotation.angle() != 0.0) && (rotation.axis() != Eigen::Vector3d::UnitZ()) && (rotation.axis() != -Eigen::Vector3d::UnitZ()))
return;
double angle_z = (rotation.axis() == Eigen::Vector3d::UnitZ()) ? rotation.angle() : -rotation.angle();
#endif
instance.offset.x = offset_x;
instance.offset.y = offset_y;