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Fix typos.

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Bruce Mitchener
2024-02-08 15:12:30 +07:00
parent a8685ed6ab
commit e4419c4f18
66 changed files with 261 additions and 263 deletions
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docs/source/affine.rst
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@@ -13,7 +13,7 @@ Post functions (`T' = T * Tnew`) are like `glm_translated`, `glm_rotated` which
`glm_translate`, `glm_rotate` are pre functions and are similar to C++ **glm** which you are familiar with.
In new versions of **cglm** we added `glm_translated`, `glm_rotated`... which are post functions,
they are useful in some cases, e.g. append transform to existing transform (apply/append transform as last transfrom T' = T * Tnew).
they are useful in some cases, e.g. append transform to existing transform (apply/append transform as last transform T' = T * Tnew).
Post functions are named after pre functions with `ed` suffix, e.g. `glm_translate` -> `glm_translated`. So don't mix them up.
@@ -24,7 +24,7 @@ a matrix for you. You don't need to pass identity matrix.
But other functions expect you have a matrix and you want to transform them. If
you didn't have any existing matrix you have to initialize matrix to identity
before sending to transfrom functions.
before sending to transform functions.
There are also functions to decompose transform matrix. These functions can't
decompose matrix after projected.
@@ -35,7 +35,7 @@ Rotation Center
Rotating functions uses origin as rotation center (pivot/anchor point),
since scale factors are stored in rotation matrix, same may also true for scalling.
cglm provides some functions for rotating around at given point e.g.
**glm_rotate_at**, **glm_quat_rotate_at**. Use them or follow next section for algorihm ("Rotate or Scale around specific Point (Pivot Point / Anchor Point)").
**glm_rotate_at**, **glm_quat_rotate_at**. Use them or follow next section for algorithm ("Rotate or Scale around specific Point (Pivot Point / Anchor Point)").
Also **cglm** provides :c:func:`glm_spin` and :c:func:`glm_spinned` functions to rotate around itself. No need to give pivot.
These functions are useful for rotating around center of object.
@@ -43,7 +43,7 @@ These functions are useful for rotating around center of object.
Rotate or Scale around specific Point (Anchor Point)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you want to rotate model around arbibtrary point follow these steps:
If you want to rotate model around arbitrary point follow these steps:
1. Move model from pivot point to origin: **translate(-pivot.x, -pivot.y, -pivot.z)**
2. Apply rotation (or scaling maybe)
@@ -82,11 +82,11 @@ helpers functions works like this (cglm provides reverse order as `ed` suffix e.
.. code-block:: c
:linenos:
TransformMatrix = TransformMatrix * TraslateMatrix; // glm_translate()
TransformMatrix = TransformMatrix * TranslateMatrix; // glm_translate()
TransformMatrix = TransformMatrix * RotateMatrix; // glm_rotate(), glm_quat_rotate()
TransformMatrix = TransformMatrix * ScaleMatrix; // glm_scale()
As you can see it is multipled as right matrix. For instance what will happen if you call `glm_translate` twice?
As you can see it is multiplied as right matrix. For instance what will happen if you call `glm_translate` twice?
.. code-block:: c
:linenos: