Change center of polygon

Audio and Graphics
#1

Hello. I have body which looks like 4/5 of square. I need to my polygon to be centered like full square of this size. Is it posible, to change .x and .y points?

#2

Im not sure what you want but maybe this will help

https://docs.coronalabs.com/api/type/DisplayObject/anchorX.html

https://docs.coronalabs.com/api/type/DisplayObject/anchorY.html

Good Luck!

#3

I love you man! It’s not the best mark for my problem, but it solves graphical stuff very good :wink:

#4

I think what you might want is to realign the points on your path so that when you generate a polygon display object it is centred. I have written a library routine to do this in my mathlib.lua:

https://code.coronalabs.com/code/mathliblua

Use the math.centrePolygon function. While this function in particular is not demonstrated, there is a main.lua showing how to use a number of the functions in the library. (Please let me know if anything is broken or if you would like use cases for any particular function!)

#5

Im not sure what you want but maybe this will help

https://docs.coronalabs.com/api/type/DisplayObject/anchorX.html

https://docs.coronalabs.com/api/type/DisplayObject/anchorY.html

Good Luck!

#6

I love you man! It’s not the best mark for my problem, but it solves graphical stuff very good :wink:

#7

I think what you might want is to realign the points on your path so that when you generate a polygon display object it is centred. I have written a library routine to do this in my mathlib.lua:

https://code.coronalabs.com/code/mathliblua

Use the math.centrePolygon function. While this function in particular is not demonstrated, there is a main.lua showing how to use a number of the functions in the library. (Please let me know if anything is broken or if you would like use cases for any particular function!)