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Re: [Paparazzi-devel] fly in the loop


From: Pascal Brisset
Subject: Re: [Paparazzi-devel] fly in the loop
Date: Mon, 03 Aug 2009 08:12:39 +0200
User-agent: Thunderbird 2.0.0.22 (X11/20090608)

Hi,

there is a single "stage_time" variable which is reset at the beginning
of every stage. Here, there is a hidden empty stage inside the while
loop where the variable is reset. It is probably not enough documented.

However, what do you expect of doing nothing during 2s ? Except during
an initialisation phase (or a perch phase with an heli), on the ground,
you probably want to continue to fly ...

So the <attitude/> instruction is a good answer

--Pascal

Steven Wawryk wrote:
> I have noticed previously that stage_time is reset to zero every iteration of 
> a
> while loop.  It works fine with "until=" attributes in other elements or
> "stages", but not while elements.  I think this is a bug.
>
> Try another element that has an "until" attribute, like <attitude ... until="2
> <= stage_time">
>
>
> 郭 flying pig wrote:
>   
>> Hi all
>>
>>   I have try to create a loop flight in the basic.xml (from HOME --> STDBY 
>> --->CLIMB ....repeat),  i use the following 
>>
>>
>>
>> <block name="loop" strip_button="lop">
>>         <while cond="TRUE">
>>         <go wp="HOME"/>
>>         <go wp="STDBY"/> 
>>         <go wp="CLIMB"/>
>>         <while cond="2 > stage_time"/>
>>         </while>
>> </block>
>>
>>
>>   The problem i have is that once i call the block, it will fly from HOME 
>> --->STDBY ---->CLIMB , but after that it will not do anything until i call 
>> the block again, does anyone one have any idea how to do it right? 
>>
>>   I have enclosed my basic2.xml for the flight plan.
>>
>>
>> Thanks
>>
>>                                                                              
>>        Chen
>>
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