class_transform2d.rst 15 KB

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  1. :github_url: hide
  2. .. Generated automatically by doc/tools/makerst.py in Godot's source tree.
  3. .. DO NOT EDIT THIS FILE, but the Transform2D.xml source instead.
  4. .. The source is found in doc/classes or modules/<name>/doc_classes.
  5. .. _class_Transform2D:
  6. Transform2D
  7. ===========
  8. **Category:** Built-In Types
  9. Brief Description
  10. -----------------
  11. 2D transformation (3×2 matrix).
  12. Properties
  13. ----------
  14. +-------------------------------+--------------------------------------------------+-----------------+
  15. | :ref:`Vector2<class_Vector2>` | :ref:`origin<class_Transform2D_property_origin>` | Vector2( 0, 0 ) |
  16. +-------------------------------+--------------------------------------------------+-----------------+
  17. | :ref:`Vector2<class_Vector2>` | :ref:`x<class_Transform2D_property_x>` | Vector2( 1, 0 ) |
  18. +-------------------------------+--------------------------------------------------+-----------------+
  19. | :ref:`Vector2<class_Vector2>` | :ref:`y<class_Transform2D_property_y>` | Vector2( 0, 1 ) |
  20. +-------------------------------+--------------------------------------------------+-----------------+
  21. Methods
  22. -------
  23. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  24. | :ref:`Transform2D<class_Transform2D>` | :ref:`Transform2D<class_Transform2D_method_Transform2D>` **(** :ref:`Transform<class_Transform>` from **)** |
  25. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  26. | :ref:`Transform2D<class_Transform2D>` | :ref:`Transform2D<class_Transform2D_method_Transform2D>` **(** :ref:`Vector2<class_Vector2>` x_axis, :ref:`Vector2<class_Vector2>` y_axis, :ref:`Vector2<class_Vector2>` origin **)** |
  27. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  28. | :ref:`Transform2D<class_Transform2D>` | :ref:`Transform2D<class_Transform2D_method_Transform2D>` **(** :ref:`float<class_float>` rotation, :ref:`Vector2<class_Vector2>` position **)** |
  29. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  30. | :ref:`Transform2D<class_Transform2D>` | :ref:`affine_inverse<class_Transform2D_method_affine_inverse>` **(** **)** |
  31. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  32. | :ref:`Vector2<class_Vector2>` | :ref:`basis_xform<class_Transform2D_method_basis_xform>` **(** :ref:`Vector2<class_Vector2>` v **)** |
  33. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  34. | :ref:`Vector2<class_Vector2>` | :ref:`basis_xform_inv<class_Transform2D_method_basis_xform_inv>` **(** :ref:`Vector2<class_Vector2>` v **)** |
  35. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  36. | :ref:`Vector2<class_Vector2>` | :ref:`get_origin<class_Transform2D_method_get_origin>` **(** **)** |
  37. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  38. | :ref:`float<class_float>` | :ref:`get_rotation<class_Transform2D_method_get_rotation>` **(** **)** |
  39. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  40. | :ref:`Vector2<class_Vector2>` | :ref:`get_scale<class_Transform2D_method_get_scale>` **(** **)** |
  41. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  42. | :ref:`Transform2D<class_Transform2D>` | :ref:`interpolate_with<class_Transform2D_method_interpolate_with>` **(** :ref:`Transform2D<class_Transform2D>` transform, :ref:`float<class_float>` weight **)** |
  43. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  44. | :ref:`Transform2D<class_Transform2D>` | :ref:`inverse<class_Transform2D_method_inverse>` **(** **)** |
  45. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  46. | :ref:`bool<class_bool>` | :ref:`is_equal_approx<class_Transform2D_method_is_equal_approx>` **(** :ref:`Transform2D<class_Transform2D>` transform **)** |
  47. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  48. | :ref:`Transform2D<class_Transform2D>` | :ref:`orthonormalized<class_Transform2D_method_orthonormalized>` **(** **)** |
  49. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  50. | :ref:`Transform2D<class_Transform2D>` | :ref:`rotated<class_Transform2D_method_rotated>` **(** :ref:`float<class_float>` phi **)** |
  51. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  52. | :ref:`Transform2D<class_Transform2D>` | :ref:`scaled<class_Transform2D_method_scaled>` **(** :ref:`Vector2<class_Vector2>` scale **)** |
  53. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  54. | :ref:`Transform2D<class_Transform2D>` | :ref:`translated<class_Transform2D_method_translated>` **(** :ref:`Vector2<class_Vector2>` offset **)** |
  55. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  56. | :ref:`Variant<class_Variant>` | :ref:`xform<class_Transform2D_method_xform>` **(** :ref:`Variant<class_Variant>` v **)** |
  57. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  58. | :ref:`Variant<class_Variant>` | :ref:`xform_inv<class_Transform2D_method_xform_inv>` **(** :ref:`Variant<class_Variant>` v **)** |
  59. +---------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
  60. Constants
  61. ---------
  62. .. _class_Transform2D_constant_IDENTITY:
  63. .. _class_Transform2D_constant_FLIP_X:
  64. .. _class_Transform2D_constant_FLIP_Y:
  65. - **IDENTITY** = **Transform2D( 1, 0, 0, 1, 0, 0 )** --- ``Transform2D`` with no translation, rotation or scaling applied. When applied to other data structures, :ref:`IDENTITY<class_Transform2D_constant_IDENTITY>` performs no transformation.
  66. - **FLIP_X** = **Transform2D( -1, 0, 0, 1, 0, 0 )** --- ``Transform2D`` with mirroring applied parallel to the X axis.
  67. - **FLIP_Y** = **Transform2D( 1, 0, 0, -1, 0, 0 )** --- ``Transform2D`` with mirroring applied parallel to the Y axis.
  68. Description
  69. -----------
  70. Represents one or many transformations in 2D space such as translation, rotation, or scaling. It consists of two :ref:`x<class_Transform2D_property_x>` and :ref:`y<class_Transform2D_property_y>` :ref:`Vector2<class_Vector2>`\ s and an :ref:`origin<class_Transform2D_property_origin>`. It is similar to a 3×2 matrix.
  71. Property Descriptions
  72. ---------------------
  73. .. _class_Transform2D_property_origin:
  74. - :ref:`Vector2<class_Vector2>` **origin**
  75. +-----------+-----------------+
  76. | *Default* | Vector2( 0, 0 ) |
  77. +-----------+-----------------+
  78. The transform's translation offset.
  79. ----
  80. .. _class_Transform2D_property_x:
  81. - :ref:`Vector2<class_Vector2>` **x**
  82. +-----------+-----------------+
  83. | *Default* | Vector2( 1, 0 ) |
  84. +-----------+-----------------+
  85. The X axis of 2×2 basis matrix containing 2 :ref:`Vector2<class_Vector2>`\ s as its columns: X axis and Y axis. These vectors can be interpreted as the basis vectors of local coordinate system traveling with the object.
  86. ----
  87. .. _class_Transform2D_property_y:
  88. - :ref:`Vector2<class_Vector2>` **y**
  89. +-----------+-----------------+
  90. | *Default* | Vector2( 0, 1 ) |
  91. +-----------+-----------------+
  92. The Y axis of 2×2 basis matrix containing 2 :ref:`Vector2<class_Vector2>`\ s as its columns: X axis and Y axis. These vectors can be interpreted as the basis vectors of local coordinate system traveling with the object.
  93. Method Descriptions
  94. -------------------
  95. .. _class_Transform2D_method_Transform2D:
  96. - :ref:`Transform2D<class_Transform2D>` **Transform2D** **(** :ref:`Transform<class_Transform>` from **)**
  97. Constructs the transform from a 3D :ref:`Transform<class_Transform>`.
  98. ----
  99. - :ref:`Transform2D<class_Transform2D>` **Transform2D** **(** :ref:`Vector2<class_Vector2>` x_axis, :ref:`Vector2<class_Vector2>` y_axis, :ref:`Vector2<class_Vector2>` origin **)**
  100. Constructs the transform from 3 :ref:`Vector2<class_Vector2>`\ s representing x, y, and origin.
  101. ----
  102. - :ref:`Transform2D<class_Transform2D>` **Transform2D** **(** :ref:`float<class_float>` rotation, :ref:`Vector2<class_Vector2>` position **)**
  103. Constructs the transform from a given angle (in radians) and position.
  104. ----
  105. .. _class_Transform2D_method_affine_inverse:
  106. - :ref:`Transform2D<class_Transform2D>` **affine_inverse** **(** **)**
  107. Returns the inverse of the matrix.
  108. ----
  109. .. _class_Transform2D_method_basis_xform:
  110. - :ref:`Vector2<class_Vector2>` **basis_xform** **(** :ref:`Vector2<class_Vector2>` v **)**
  111. Transforms the given vector by this transform's basis (no translation).
  112. ----
  113. .. _class_Transform2D_method_basis_xform_inv:
  114. - :ref:`Vector2<class_Vector2>` **basis_xform_inv** **(** :ref:`Vector2<class_Vector2>` v **)**
  115. Inverse-transforms the given vector by this transform's basis (no translation).
  116. ----
  117. .. _class_Transform2D_method_get_origin:
  118. - :ref:`Vector2<class_Vector2>` **get_origin** **(** **)**
  119. Returns the transform's origin (translation).
  120. ----
  121. .. _class_Transform2D_method_get_rotation:
  122. - :ref:`float<class_float>` **get_rotation** **(** **)**
  123. Returns the transform's rotation (in radians).
  124. ----
  125. .. _class_Transform2D_method_get_scale:
  126. - :ref:`Vector2<class_Vector2>` **get_scale** **(** **)**
  127. Returns the scale.
  128. ----
  129. .. _class_Transform2D_method_interpolate_with:
  130. - :ref:`Transform2D<class_Transform2D>` **interpolate_with** **(** :ref:`Transform2D<class_Transform2D>` transform, :ref:`float<class_float>` weight **)**
  131. Returns a transform interpolated between this transform and another by a given weight (0-1).
  132. ----
  133. .. _class_Transform2D_method_inverse:
  134. - :ref:`Transform2D<class_Transform2D>` **inverse** **(** **)**
  135. Returns the inverse of the transform, under the assumption that the transformation is composed of rotation and translation (no scaling, use affine_inverse for transforms with scaling).
  136. ----
  137. .. _class_Transform2D_method_is_equal_approx:
  138. - :ref:`bool<class_bool>` **is_equal_approx** **(** :ref:`Transform2D<class_Transform2D>` transform **)**
  139. ----
  140. .. _class_Transform2D_method_orthonormalized:
  141. - :ref:`Transform2D<class_Transform2D>` **orthonormalized** **(** **)**
  142. Returns the transform with the basis orthogonal (90 degrees), and normalized axis vectors.
  143. ----
  144. .. _class_Transform2D_method_rotated:
  145. - :ref:`Transform2D<class_Transform2D>` **rotated** **(** :ref:`float<class_float>` phi **)**
  146. Rotates the transform by the given angle (in radians).
  147. ----
  148. .. _class_Transform2D_method_scaled:
  149. - :ref:`Transform2D<class_Transform2D>` **scaled** **(** :ref:`Vector2<class_Vector2>` scale **)**
  150. Scales the transform by the given factor.
  151. ----
  152. .. _class_Transform2D_method_translated:
  153. - :ref:`Transform2D<class_Transform2D>` **translated** **(** :ref:`Vector2<class_Vector2>` offset **)**
  154. Translates the transform by the given offset.
  155. ----
  156. .. _class_Transform2D_method_xform:
  157. - :ref:`Variant<class_Variant>` **xform** **(** :ref:`Variant<class_Variant>` v **)**
  158. Transforms the given :ref:`Vector2<class_Vector2>`, :ref:`Rect2<class_Rect2>`, or :ref:`PoolVector2Array<class_PoolVector2Array>` by this transform.
  159. ----
  160. .. _class_Transform2D_method_xform_inv:
  161. - :ref:`Variant<class_Variant>` **xform_inv** **(** :ref:`Variant<class_Variant>` v **)**
  162. Inverse-transforms the given :ref:`Vector2<class_Vector2>`, :ref:`Rect2<class_Rect2>`, or :ref:`PoolVector2Array<class_PoolVector2Array>` by this transform.