how to determine width of text?

General TouchDesigner Discussion
1

Hi,

I know how to make text fit to the size of a button, but how do I make a button (or a text top) fit to the size of the text it contains, so the text size remains constant and the top size adapts to that?

tx
d

2

not sure if this helps but… i used this before, i forgot where. In the text:TOP, for Custom Res X use:

strlen(pars(“./text”))*par(“./fontsizex”)

multiply font size, and length of string and puts it as the total resolution. U should subtract out how many resolution u want deleted from there.

3

oh nm. doesn’t work. eheheh dani said it won’t and it doesn’t since letter widths are all different… i’ll go back to noob section, woot.

4

I’ll bring this to the forefront again…

I have a text TOP I want to size (within certain screen limitations) to encompass the length of some arbitrary text.

Anyway to get at that information to know what my x resolution would have to be given some text?

thanks,
dani

5

Hey Dani,

for that use the text(“string TOP”, string attribute) expression which returns width and height of the text based on the font settings of that text TOP.

cheers
markus

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6

For anyone stumbling across this from google, the textTop has a textWidth and textHeight member you can use.

For example, to set the width of something to the width of the text plus 20 pixels, you could use the following expression: op('./text1').textWidth + 20.

Related docs: textTOP Class - Derivative

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