Pepper:将变量从Python传递到Web JS [英] Pepper: pass variable from Python to web JS

问题描述

我正在为Aldebaran的Pepper机器人编写一个应用程序.我正在使用Choregraphe，并制作了一个用于在机器人平板电脑中显示的html.我已经完成了用于显示网络的框，并且需要将Python中的变量传递给网络Javascript.

I'm programming an App for the Aldebaran's Pepper robot. I'm using Choregraphe and I made an html for displaying in robots tablet. I have made the boxes for displaying the web and I need to pass a variable from Python to the web Javascript.

有什么办法吗?

Python代码与引发事件"框的默认代码相同，它在onStart输入上接收到字符串"IMAGE":

The Python code is the same as the default of a Raise Event box, it receives a string "IMAGE" on his onStart input:

class MyClass(GeneratedClass):
    def __init__(self):
        GeneratedClass.__init__(self)
        pass

    def onLoad(self):
        self.memory = ALProxy("ALMemory")

    def onUnload(self):
        self.memory = None

    def onInput_onStart(self, p):
        self.memory.raiseEvent(self.getParameter("key"), p)
        self.onStopped(p)

    def onInput_onStop(self):
        self.onUnload() #~ it is recommended to call onUnload of this box in a onStop method, as the code written in onUnload is used to stop the box as well
        pass

而Javascript代码是这样的:

And the Javascript code is this:

$('document').ready(function(){

    var session = new QiSession();

    session.service("ALMemory").done(function (ALMemory) {
        ALMemory.subscriber("PepperQiMessaging/totablet").done(function(subscriber) {
            $("#log").text("AAA");
            subscriber.signal.connect(toTabletHandler);
        });
    });

    function toTabletHandler(value) {
          $("#log").text("-> ");
    }
});

它进入JS的第一个#log而不是第二个.

It enters the first #log but not the second of JS.

推荐答案

我解决了这个问题.我在 show HTML 框和 sendImage 框之间放置了一个2秒钟的 delay 框，如下图所示:

I solved the problem. I put a delay box of 2 seconds between the show HTML box and the sendImage box like in the image below:

我认为问题在于发送到表的字符串是在Web准备接收之前发送的，并且2秒的延迟(如果1则不起作用)，页面有时间准备接收数据.

I think the problem was that the string that is send to tabled was sent before the web was prepared to receive it, and the delay of 2 seconds (with 1 it doesn't work) the page have time to prepare for receiving data.

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