[RESOLVED] Specifying color in ezPDF

hadoob024

I was wondering if anyone knows how to change colors of text, shapes, etc. with ezPDF? I read through their documentation and it says that:

"(r,g,b) array, defining the colour of the shading, values from 0 to 1, default is (0.8,0.8,0.8)"

I'm confused though. If it's rgb colors, then I assumed that the value range would be from 0 to 255. I'm trying to make a particular blue color. As of now, I have the following bit of code for color:

'shadeCol2' => array (0,0,0.4)

This gets me a blue color, but the wrong shade. And it's hard to figure out the correct shade when I don't know how to manipulate these numbers. Anyone come across this?

hadoob024

Nevermind. I just found the following:

"1. In EZPDF you can set the colour of the text, shapes, lines etc., the colour needs to be specified in RGB triplet, each in the range 0 to 1. Most of the tools(eg:- Colour picker, Adobe Photoshop) shows the colour in the range of 0-255 or in Hexadecimal format. If you want the colour values in the range of 0-1, divide the colour values by 255. For example Blue is rgb(0, 155, 255). You can convert it in to 0-1 range by dividing each values by 255. So the blue is rgb(0, 0.61, 1) in 0-1 range."

Pikachu2000

I'd have to assume the values are the decimal equivalent of the range 0-255, such that 168 would be 168/255 or 0.658. I'd mess with it a bit to see how many decimal places it will interpret, and hope that it's more than just one . . .

hadoob024

Wow. Good guess as to how it works. I couldn't figure it out until I came across this link that had that tip. Weird too that the official documentation for ezPDF didn't mention it. Oh well 🙂

Weedpacket

hadoob024 wrote:
Weird too that the official documentation for ezPDF didn't mention it

Uh, yes it does:

ezPDF documentation wrote:
the colour needs to be specified in RGB triplet, each in the range 0 to 1. Most of the tools(eg:- Colour picker, Adobe Photoshop) shows the colour in the range of 0-255 or in Hexadecimal format. If you want the colour values in the range of 0-1, divide the colour values by 255.

hadoob024

But that wasn't in the ezPDF docs. I found that at a secondary website.