node-firefly2

nodejs binding for firefly 2 camera

Introduction: This is a wrapper for the FlyCapture2 Api from Point Grey research, http://www.ptgrey.com/support/downloads/documents/Doxygen/html/annotated.html. Currently It only runs only linux, however Windows and Mac "should" be easy to support. Unfortunatly, Point grey requires one to create a login before downloading the sdk which is at http://www.ptgrey.com/support/downloads/downloads_admin/Index.aspx

Intallation:

Note: this only works on linux at the moment. Maybe someone could help with the windows version. Hint Hint Nudge Nudge.

• Download and install Point grey SDK from http://www.ptgrey.com/support/downloads/downloads_admin/Index.aspx
• cd node-firefly2
• npm install

Example:

    var addon = require('../build/Release/addon');
    var fs = require('fs');
    var sys = require('sys');
    var Png = require('png').Png;
    var timer = require('../timer.js').timer
    //
    var cam = new addon.FireFlyWrap();
    console.log( 'num cameras' , cam.getNumCameras())
    console.log("start Camera 0 ", cam.startCamera())
    //
    //set some default parameters.
    cam.autoGain(true);
    cam.autoExposure(true);
    cam.autoWhiteBalance(true);
    cam.triggerOff(false);//True uses the cable. Note don't use true unless you have a cable. It will wait forever. 
    //
    //take a few just to get it warmed up. might help?
    cam.takePhoto();cam.takePhoto();cam.takePhoto();cam.takePhoto()
    var pic = cam.takePhoto();//actually take the picture
    var png2 = new Png(pic,640,480,'rgb')
    var png_image = png2.encodeSync();
    fs.writeFileSync('../pics/png_test.png', png_image.toString('binary'), 'binary');
    

API:

• var cam = new addon.FireFlyWrap(); // allways start with this

• cam.getNumCameras() // returns the number of cameras found

• cam.startCamera() // starts using the first camera

• cam.autoGain(false); // turn gain on or off

• cam.autoExposure(false); // turn auto shutter speed on or off

• cam.autoWhiteBalance(false); // turn auto white balance on or off

• cam.gain(2); // manually sets the gain. Note that auto gain must be off for this to work

• cam.exposure(90); // manually sets shutter speed. in milli seconds

• cam.triggerOff(true);//True is off, waits for hardware trigger. If no trigger is connected it will wait forever.

• cam.frameRate(); // sets the fram rate to 90 fps

• cam.triggerDelay(0.000)// takes a number in seconds to delay between when the cable trigger fires and when the picture is taken.

• cam.takePhoto(); // takes a picture and returns a node::buffer