WoW:API Texture SetTexCoord: Difference between revisions

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WoW:API Texture SetTexCoord (source)

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 {{widgetmethod}}
-Limits the region of a texture drawn by the Texture widget.
+Sets the region of a texture drawn by the {{api|Texture|t=w}} widget.
- obj:SetTexCoord(left,right,top,bottom);
- obj:SetTexCoord(ULx,ULy,LLx,LLy,URx,URy,LRx,LRy);
-== Arguments ==
+ obj:SetTexCoord(left,right,top,bottom)
-:(left,right,top,bottom)
+ obj:SetTexCoord(ULx,ULy,LLx,LLy,URx,URy,LRx,LRy)
-:: Number - side coordinates; top left corner of the image is (0, 0); bottom right corner is (1, 1).
-:(ULx,ULy,LLx,LLy,URx,URy,LRx,LRy);
+== Parameters ==
-:: Number - point coordinates; top left corner of the image is (0, 0); bottom right corner is (1, 1).
+=== Arguments ===
+:;left, right, top, bottom - number
+:: side coordinates; top left corner of the image is (0, 0); bottom right corner is (1, 1).
-== Notes ==
+:;ULx, ULy, LLx, LLy, URx, URy, LRx, LRy - number
-The function cuts a sub-region out of the texture to display ingame.
+:: point coordinates; top left corner of the image is (0, 0); bottom right corner is (1, 1).
-* Unless you want to do rotations, use the ''(left,right,top,bottom)'' notation.
-* The more complex 8-argument form allows for arbitrary affine transformations, see [[SetTexCoord Transformations]] for details.
+=== Returns ===
+:none
+== Details ==
+The function can be used to cut a sub-region out of the texture to display in game.
 == Example ==
+ texture:SetTexCoord(0, 0.5, 0.5, 1)
 Displays the bottom-left quarter of the image.
- texture:SetTexCoord(0, 0.5, 0.5, 1);
-==Details==
+ local ULx,ULy,LLx,LLy,URx,URy,LRx,LRy = texture:GetTexCoord()
-Use this function to select a sub-region of a texture for display in a Texture widget.  Note that the coordinates are normalised, and that the origin is the ''top'' left corner.  (Note: Tested in patch 2.0.6, and the origin is in fact in the top left, and not the bottom left as was previously stated)
+ texture:SetTexCoord(ULx*0.5,ULy,LLx*0.5,LLy,URx,URy,LRx,LRy)
+ local w = texture:GetWidth();
+ texture:SetWidth(w * 0.5)
+Change the "view" of a texture to the right, to one half, while maintaining aspect ratio and scale.
+== Notes ==
+* the coordinates are normalized, and that the origin is the ''top'' left corner.
+* Tested in patch 2.0.6, and the origin is in fact in the top left, and not the bottom left as was previously stated
+* Unless you want to do rotations, use the ''(left,right,top,bottom)'' notation.
+* The more complex 8-argument form allows for arbitrary affine transformations, and transformations based on previous values.
+== See also ==
+* {{api|Texture:GetTexCoord|t=w}}()
+* [[SetTexCoord Transformations]]