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Replacing a string of text from a text file (with a small twist)
Hi there,
I have an expression on my text layer which evaluates a variable in a text file to get a string:
$.evalFile(“/D:/main.txt”);
eval(thisLayer.name)And inside the main.txt:
string1 = “Hello world”And finally the text layer name is appropriately called “string1” so that the string is evaulated correctly and the text on screen is “Hello world”.
What I really want to do is to have more than one strings in my text file, like this:
string1 = “Hello world”
string2 = “Hello Mars”
string3 = “Hello Pluto”
text1 = “Human”
text2 = “Martian”
text3 = “Plutonian”And I want to define multiple strings by having two text layers called “string” and “text” and having a null object above simply called 1, 2 or 3 to change the text.
And have the expression as:$.evalFile(“/D:/main.txt”);
eval(thisLayer.name+(index-1))But it doesn’t work. Hope this vaguely makes sense. I’ve managed to achieve the effect adding the layer name to a slider value, but I’d rather do it with another layer. Thanks.
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2 Replies
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I think you’re maybe making it more complicated than it needs to be. If you use this as your text file:
string1 = “Hello world”
string2 = “Hello Mars”
string3 = “Hello Pluto”
text1 = “Human”
text2 = “Martian”
text3 = “Plutonian”Then once you do this:
$.evalFile(“/D:/main.txt”);
those six variables (string1, string2, etc) should exist in the expression.
So this:
$.evalFile(“/D:/main.txt”);
string2Should give you “Hello Mars”, so I wouldn’t think you’d need to do an eval() to select which string gets displayed.
It might be even better to do something like this with your text file:
strings = [“Hello world”, “Hello Mars”, “Hello Pluto”];
texts = [“Human”, “Martian”, “Plutonian”];Then an expression like this:
$.evalFile("/D:/main.txt");
idx = 2;
strings[idx] + "\r" + texts[idx]
Would give you:
Hello Pluto
PlutonianThen you just need a clever way to select idx…
Dan
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Thanks for your reply, Dan.
Lots of useful tips in there!
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