Axis Camera in C++; code error??

[Straberrie]

Hi! Currently, I am trying to program the camera and the bot so that when it detects green, it aligns itself with the traget, but since i epicly phailed at that, I decided to do something simpler and just make the bot go forward when it detects green! I made this code *well, technically I used the guide and didnt really MAKE it* and i am getting 2 errors.... And i cant figure out whats wrong! help would be appreciated! THANKS!


So here are the headers I used:

#include "WPILib.h"
#include "AxisCamera.h"
#include "Servo.h"
#include "SimpleRobot.h"
#include "SensorBase.h"
#include "Error.h"
#include "ErrorBase.h"
#include "FrcError.h"

This is the rest of the defining and stuff!

class RobotDemo : public SimpleRobot
{
RobotDrive *Bot; // robot drive system
Joystick *stickRight;
Joystick *stickLeft;
DriverStation *ds; // driver station


public:
RobotDemo(void)
{
if (StartCameraTask ()== -1) {
printf( "Failed to spawn camera task; Error code %s",
GetErrorText (GetLastError()) };

ds = DriverStation::GetInstance();
Bot = new RobotDrive(1, 2); // create robot drive base
stickRight = new Joystick(1);
stickLeft = new Joystick(2);
Range greenHue, greenSat, greenLum;
greenHue.minValue = 65; greenHue.maxValue = 80;
greenSat.minValue =100; greenSat.maxValue = 255;
greenLum.minValue = 100; greenLum.maxValue = 255;
GetWatchdog().SetExpiration(100);
}


and here is the autonomous:

void Autonomous(void)
{
GetWatchdog().SetEnabled(false);

while(IsAutonomous())
{
if( FindColor(IMAQ_HSL, &greenHue, &greenSat, &greenLum, &par)
&& par.particleToImagePercent < MAX_PARTICLE_TO_IMAGE_PERCENT
&& par.particleToImagePercent > MIN_PARTICLE_TO_IMAGE_PERCENT )

{Bot->Drive(1.0, (float)par.center_mass_x_normalized);}

else
Bot->Drive(0.0, 0.0);
Wait(50);
}

Bot->Drive(0.0, 0.0); // stop robot
}


and the very end line of the code:

START_ROBOT_CLASS(RobotDemo);


I highlighted the lines where i get an error; basically on the get error one, they say the function was not defined.... and it also highlights the Start Robot Class thing as wrong. And is camera initiated/used right? Because in the guide, there are different things on different pages and I did not know what to use... Sorry for the lengthy question.

[Bongle]

You're missing a closing round-bracket on the 1st line. You have a ')' for GetLastError, then a ')' for GetErrorText, but you're missing a ')' for printf. It should be

if (StartCameraTask ()== -1) 
{
  printf( "Failed to spawn camera task; Error code %s",
GetErrorText (GetLastError())) };

[tdlrali]

Change the lines

if (StartCameraTask ()== -1) {
printf( "Failed to spawn camera task; Error code %s",
GetErrorText (GetLastError()) };

to

if (StartCameraTask() == -1)
	printf("Failed to spawn camera task; Error code %s", GetVisionErrorText(GetLastVisionError()));

It should compile now (See FrcError.h for these declarations - the headers were probably changed after the documentation was written).

(P.S. Your #includes for servo.h, simplerobot.h, sensorbase.h, error.h and errorbase.h are extraneous, since they are included by wpilib.h)

[Straberrie]

THANK U!!!!!!!!!!

and really?? I thought maybe the get error thing would be in one of them, but YAY! ty!!!