Relative path difficulties

Question

I started working with some files, something easy.

I read that the File class support relative paths, so I tried something like:

File file_bg = new File("data\\bg.png"); if(file_bg.exists()) flag_bg = true;

Ok, now, making some debugging I noticed that every File variable have as parent path the same path where the IDE is, instead of the path where my project is.

Is it a common behavior or I have to set up something before starting the sketch? Is it equal for java IDEs like NetBeans?

One more question, there is a way to keep a String variable in memory that contains the path of my .pde file?

Thanks a lot for the interest, waiting a response!

duplicate of stackoverflow.com/questions/3844307/…, stackoverflow.com/questions/8638582/java-relative-file-paths — Alex Wittig
– Alex Wittig, Commented Jan 30, 2014 at 16:53
In Windows anyway, the current directory is set at the process level. In other words, this has nothing to do with the IDE. The runtime asks the operating system what the current path is. Not sure if this is a helpful answer. — Mike Christensen
– Mike Christensen, Commented Jan 30, 2014 at 16:54

Petros Koutsolampros · Accepted Answer · 2014-01-31 01:14:16Z

2

You don't need to store a string with that directory, Processing can give it to you with sketchPath() and dataPath()... Not particularly odd, google's first result for "processing sketch path" returns this

thus:

File file_bg = new File(dataPath("bg.png"));

answered Jan 31, 2014 at 1:14

Petros Koutsolampros

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4 Comments

ingroxd Over a year ago

dataPath("") paradoxically doesn't return the data folder of the sketch, but a folder [null\data\ ] inside the IDE folder.

Petros Koutsolampros Over a year ago

how about sketchPath()? What version of Processing are you using?

Petros Koutsolampros Over a year ago

also try this hacky slashy method: args[0].split("=")[1]

ingroxd Over a year ago

I am using the last version, 2.1.1. sketchPath() returns the same path of dataPath() without entering in data\ . By now I set the drive folder [is an external hd] with getAbsolutePath().getChar(0) + ":\\"; and then I add the ret of the path statically.

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