hom_mat3d_scale_localT_hom_mat3d_scale_localHomMat3dScaleLocalHomMat3dScaleLocalhom_mat3d_scale_local (算子)

名称

hom_mat3d_scale_localT_hom_mat3d_scale_localHomMat3dScaleLocalHomMat3dScaleLocalhom_mat3d_scale_local — 为齐次三维变换矩阵添加缩放。

签名

描述

hom_mat3d_scale_localhom_mat3d_scale_localHomMat3dScaleLocalHomMat3dScaleLocalHomMat3dScaleLocalhom_mat3d_scale_local adds a scaling by the scale factors SxSxSxSxsxsx, SySySySysysy, and SzSzSzSzszsz to the homogeneous 3D transformation matrix HomMat3DHomMat3DHomMat3DHomMat3DhomMat3Dhom_mat_3d and returns the resulting matrix in HomMat3DScaleHomMat3DScaleHomMat3DScaleHomMat3DScalehomMat3DScalehom_mat_3dscale. The scaling is described by a 3×3 scaling matrix S. In contrast to hom_mat3d_scalehom_mat3d_scaleHomMat3dScaleHomMat3dScaleHomMat3dScalehom_mat3d_scale, it is performed relative to the local coordinate system, i.e., the coordinate system described by HomMat3DHomMat3DHomMat3DHomMat3DhomMat3Dhom_mat_3d; this corresponds to the following chain of transformation matrices:

The fixed point of the transformation is the origin of the local coordinate system, i.e., this point remains unchanged when transformed using HomMat3DScaleHomMat3DScaleHomMat3DScaleHomMat3DScalehomMat3DScalehom_mat_3dscale。

注意

Note that homogeneous matrices are stored row-by-row as a tuple; the last row is usually not stored because it is identical for all homogeneous matrices that describe an affine transformation. For example, the homogeneous matrix is stored as the tuple [ra, rb, rc, td, re, rf, rg, th, ri, rj, rk, tl]. However, it is also possible to process full 4×4 matrices, which represent a projective 4D transformation.

执行信息

• 多线程类型：可重入（与非独占算子并行运行）。
• 多线程作用域：全局（可从任何线程调用）。
• 未采用并行化处理。

参数

结果

hom_mat3d_scale_localhom_mat3d_scale_localHomMat3dScaleLocalHomMat3dScaleLocalHomMat3dScaleLocalhom_mat3d_scale_local returns 2 ( H_MSG_TRUE) if all three scale factors are not 0。如有必要，则抛出异常。

可能的前趋

hom_mat3d_identityhom_mat3d_identityHomMat3dIdentityHomMat3dIdentityHomMat3dIdentityhom_mat3d_identity, hom_mat3d_translate_localhom_mat3d_translate_localHomMat3dTranslateLocalHomMat3dTranslateLocalHomMat3dTranslateLocalhom_mat3d_translate_local, hom_mat3d_scale_localhom_mat3d_scale_localHomMat3dScaleLocalHomMat3dScaleLocalHomMat3dScaleLocalhom_mat3d_scale_local, hom_mat3d_rotate_localhom_mat3d_rotate_localHomMat3dRotateLocalHomMat3dRotateLocalHomMat3dRotateLocalhom_mat3d_rotate_local

可能的后继

hom_mat3d_translate_localhom_mat3d_translate_localHomMat3dTranslateLocalHomMat3dTranslateLocalHomMat3dTranslateLocalhom_mat3d_translate_local, hom_mat3d_scale_localhom_mat3d_scale_localHomMat3dScaleLocalHomMat3dScaleLocalHomMat3dScaleLocalhom_mat3d_scale_local, hom_mat3d_rotate_localhom_mat3d_rotate_localHomMat3dRotateLocalHomMat3dRotateLocalHomMat3dRotateLocalhom_mat3d_rotate_local

另见

hom_mat3d_inverthom_mat3d_invertHomMat3dInvertHomMat3dInvertHomMat3dInverthom_mat3d_invert, hom_mat3d_identityhom_mat3d_identityHomMat3dIdentityHomMat3dIdentityHomMat3dIdentityhom_mat3d_identity, hom_mat3d_scalehom_mat3d_scaleHomMat3dScaleHomMat3dScaleHomMat3dScalehom_mat3d_scale, pose_to_hom_mat3dpose_to_hom_mat3dPoseToHomMat3dPoseToHomMat3dPoseToHomMat3dpose_to_hom_mat3d, hom_mat3d_to_posehom_mat3d_to_poseHomMat3dToPoseHomMat3dToPoseHomMat3dToPosehom_mat3d_to_pose, hom_mat3d_composehom_mat3d_composeHomMat3dComposeHomMat3dComposeHomMat3dComposehom_mat3d_compose

模块

基础