Problem with x,y scaling

[ElmuKelmuZ]

So, I have 4 pseudo-classes that I use here.

Vector2 which is essentially just an X and Y value.
UDim2 which has an X,Y scale as well as X,Y offset
Color3 which has r,g,b values
ImageLabel which has properties as such:

UDim2 inner workings:



So I use these to draw an image on screen, however nothing gets drawn when I do this:

The size and position I set to it are as follows:

I print out image:getDimensions() and all the stuff I pass onto love.graphics.draw and get this:

[raidho36]

What's the color value? It might have zero alpha. Also that's awful lot of calculations for something as simple as storing a coordinate.

[0x72]

Your default Color3 is black (i.e. "multiply every color by 0 so it's all black whatever texture is used").

I've changed Color3.new so it defaults to white (lines 12-14) and it works great

Code: Select all

    col3.r = Clamp(r or 255, 0, 255)
    col3.g = Clamp(g or 255, 0, 255)
    col3.b = Clamp(b or 255, 0, 255)

White sounds like a better default, but of course you can just set it manually in ImageLabel.new

Code: Select all

    img.Color = col or Color3.new(255, 255, 255)

[KayleMaster]

Side question, what's your IDE/text editor or whatever they call it?

[ElmuKelmuZ]

Side question, what's your IDE/text editor or whatever they call it?

Visual Studio 2013, using the BabeLua "plugin"

[ElmuKelmuZ]

Your default Color3 is black (i.e. "multiply every color by 0 so it's all black whatever texture is used").

I've changed Color3.new so it defaults to white (lines 12-14) and it works great

Code: Select all

    col3.r = Clamp(r or 255, 0, 255)
    col3.g = Clamp(g or 255, 0, 255)
    col3.b = Clamp(b or 255, 0, 255)

White sounds like a better default, but of course you can just set it manually in ImageLabel.new

Code: Select all

    img.Color = col or Color3.new(255, 255, 255)

Ah, stupid mistake by me again :/

Thanks

[ElmuKelmuZ]

Also now that this is settled and my next question doesn't deserve it's own new thread,



How do I tweak my equations so a size of UDim2.new(1, 0, 1, 0) stretches the image to the screens bounds

[Tjakka5]

The target scale can be calculated by doing targetSize / imageSize.
If your screen resolution is static it's pretty straight forward.
If not you should use the love.resize() callback to recalculate all the target scales.

[Positive07]

sx = [wiki]love.graphics.getWidth[/wiki]()/[wiki](Image):getWidth[/wiki]()
sy = [wiki]love.graphics.getHeight[/wiki]()/[wiki](Image):getHeight[/wiki]()