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Unread 23-02-2016, 23:14
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Arhowk Arhowk is offline
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AKA: Jake Niman
FRC #1684 (The Chimeras) (5460 Mentor)
 
Join Date: Jan 2013
Rookie Year: 2013
Location: Lapeer
Posts: 542
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Re: How to pause GRIP data input?

Quote:
This doesn't work because the smaller contours fluctuate a lot and the position of the goal/largest contour changes from the first time we get the data (area) to the second time we get the data (centerX, or height).
You could just flash the data immediately... something like how I do ours

Code:
        self.rotateError = 0
        try:
            beta = self._getArray("area")
            x = self._getArray("centerX")
            y = self._getArray("centerY") 
            self.largestArea = 0
            self.largestIndex = -1
            for index in range(len(beta)):
                if beta[index] > self.largestArea:
                    self.largestIndex = index
                    self.largestArea = beta[index]
            if self.largestIndex != -1:
                wpilib.SmartDashboard.putNumber("Largest Area", beta[self.largestIndex])
                wpilib.SmartDashboard.putNumber("Largest x", x[self.largestIndex])
                wpilib.SmartDashboard.putNumber("Largest y", y[self.largestIndex])
                wpilib.SmartDashboard.putNumber("X Error", self.center_x - x[self.largestIndex])
                wpilib.SmartDashboard.putNumber("Rotate Error", self.degrees_per_x_error * (self.center_x - x[self.largestIndex]))
                wpilib.SmartDashboard.putNumber("Y Error", self.center_y - y[self.largestIndex])
                
                self.rotateError = self.degrees_per_x_error * (self.center_x - x[self.largestIndex])
                self.y = y[self.largestIndex]
            return
        except KeyError:
            return
        except IndexError:
            return
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