[SOLVED]Image Zoom From Center Doesn't Work

[Nero]

Hi, this might be a simple problem to solve but I'm having some trouble. Basically I want my picture to be zoomed out from the CENTER of its position not from the LEFT upper corner as it is default. I was searching some documentation but it seems like it doesn't work or maybe I'm using it incorrectly?

Code: Select all

image x:
    "x.png"
    truecenter
    zoom 1.0
    ease 3.0 zoom 1.5

[Per K Grok]

Hi, this might be a simple problem to solve but I'm having some trouble. Basically I want my picture to be zoomed out from the CENTER of its position not from the LEFT upper corner as it is default. I was searching some documentation but it seems like it doesn't work or maybe I'm using it incorrectly?

Code: Select all

image x:
    "x.png"
    truecenter
    zoom 1.0
    ease 3.0 zoom 1.5

One way of doing this is to use xpos and ypos to position the image and as you zoom the images size you move the xpos and ypos at the same time using the zoom value.

In this example I have a sprite with the size 48x90. Since you want to have the position fixed to the center we will use half of those values, 24 and 45

Code: Select all

    show bub15:
        pos (200-24 ,200-45)     ## center positioned at 200, 200
        zoom 1.0
        ease 3.0 zoom 1.5 xpos int(200 - (24*1.5)) ypos int(200 - (45*1.5))    ## center always positioned at 200, 200  using half of the sprites width and height at any time during the movement.   Since a position in pixels is a whole number I transform the number for xpos and ypos from a float to an integer.

[Remix]

Hmmm, works fine here.

Using truecenter sets the align property to (0.5,0.5) which in turn sets both anchor and pos to the same value.
Having the image anchored at 0.5,0.5 is exactly what you want.

What syntax are you using to show it?

Code: Select all

label start:
    show x
    "..."

The only way I could see this failing is if you were showing it inside another container that was aligned differently... such as a frame in a screen....

Sub-note: I would advise adding subpixel True to your transform (for any zoom or rotate)

[Nero]

Both of your solutions worked fine guys.

Per K Grok your case also works now that I fixed the frame problem.

Remix as you said problem was that it was inside of a frame but I managed to make it work with some tweaking.

Thanks!