Register • FAQ • Search • Login
View unanswered posts | View active topics It is currently Sun Apr 20, 2014 6:01 am


Board index » ROBOTC Applications » ROBOTC for LEGO MINDSTORMS

All times are UTC - 5 hours [ DST ]




Reply to topic  Page 1 of 2
  [ 16 posts ]  Go to page 1, 2  Next
Print view Previous topic | Next topic 
How to draw Bar charts on NXT with Robotc 
Author Message
john6672
Rookie

Joined: Sat Apr 27, 2013 3:53 pm
Posts: 7
Post How to draw Bar charts on NXT with Robotc
Hello,

I am working on a code where i have to collect sensor readings for (light, sound, sonar) every second and display a graph at the end with min and max values.
I also have to display total readings which was easy. I have put together all the code except for the graph part. I would really appreciate if anyone would help me out on this.

Here my code so far :

Code:
task read()
{
   int light_readings[60];
  int sound_readings[60];
  int sonar_readings[60];
  int lightcount=0;
  int soundcount=0;
  int sonarcount=0;
  int tot=0;
  int maxLight=SensorValue[light];
  int minLight=SensorValue[light];
  int maxSound=SensorValue[sound];
  int minSound=SensorValue[sound];
  int maxSonar=SensorValue[sonar];
  int minSonar=SensorValue[sonar];
  ClearTimer(T1);

  while (time1[T1] < 10000)
  {
     if (SensorValue[light]<minLight)
    {
      minLight=SensorValue[light];
    }
     if (SensorValue[light]>maxLight)
    {
         maxLight=SensorValue[light];
    }
    if (SensorValue[sound]<minSound)
    {
         minSound=SensorValue[sound];
      }
      if (SensorValue[sound]>maxSound)
    {
         maxSound=SensorValue[sound];
    }
    if (SensorValue[sonar]<minSonar)
      {
        minSonar=SensorValue[sonar];
      }
      if (SensorValue[sonar]>maxSonar)
      {
         maxSonar=SensorValue[sonar];
     }

      light_readings = SensorValue[light];
     lightcount=lightcount +1;
     sound_readings = SensorValue[sound];
     soundcount= soundcount +1;
     sonar_readings = SensorValue[sonar];
     sonarcount= sonarcount +1;
     tot= lightcount + soundcount + sonarcount;
     wait1Msec(1000);

     while (time1[T1] >= 10000)
     {
        motor[motorB] = 0;
       motor[motorC] = 0;
       nxtDisplayString(1, "Light:", minLight, maxLight);
       nxtDisplayString(2, "Min=%i Max=%i", minLight, maxLight);
       nxtDisplayString(3, "Noise:", minSound, maxSound);
       nxtDisplayString(4, "Min:%i Max:%i", minSound, maxSound);
       nxtDisplayString(5, "Distance:", minSonar, maxSonar);
       nxtDisplayString(6, "Min:%i Max:%i", minSonar, maxSonar);
       nxtDisplayString(7, "Tot Readings:%i", tot);
    }
}
Sat Apr 27, 2013 3:56 pm
Profile
mightor
Moderator
Moderator
User avatar

Joined: Wed Mar 05, 2008 8:14 am
Posts: 3107
Location: Rotterdam, The Netherlands
Post Re: How to draw Bar charts on NXT with Robotc
If you download my drivers, you'll find some progams that can do this. I think they're the mindsensors-lineleader-test*.c programs. One of the hitechnic-colourv2-test*.c examples has it, too, I believe.

= Xander

_________________
| Professional Conduit of Reasonableness
| (Title bestowed upon on the 8th day of November, 2013)
| My Blog: I'd Rather Be Building Robots
| ROBOTC 3rd Party Driver Suite: [Project Page]
Sat Apr 27, 2013 4:06 pm
Profile WWW
john6672
Rookie

Joined: Sat Apr 27, 2013 3:53 pm
Posts: 7
Post Re: How to draw Bar charts on NXT with Robotc
mightor wrote:
If you download my drivers, you'll find some progams that can do this. I think they're the mindsensors-lineleader-test*.c programs. One of the hitechnic-colourv2-test*.c examples has it, too, I believe.

= Xander



I will check it out. thanks!!
Sat Apr 27, 2013 4:20 pm
Profile
john6672
Rookie

Joined: Sat Apr 27, 2013 3:53 pm
Posts: 7
Post Re: How to draw Bar charts on NXT with Robotc
What I have understood so far is I have to use "nxtFillRect" function to draw the bar chart. So, let say I want to draw a graph for light sensor values, say maximum value is 85.

So this is how i would implement it :

nxtFillRect (10, 85, 70, 10);

wait1Msec(10000);

Correct me if am wrong and also tell me how i can substitute the actual max value of light sensor instead of 85?
Sat Apr 27, 2013 5:08 pm
Profile
magicode
Moderator
Moderator
User avatar

Joined: Tue Sep 14, 2010 9:19 pm
Posts: 496
Post Re: How to draw Bar charts on NXT with Robotc
The variables can be used just like numbers. You can do: nxtFillRect (10, maxLight, 70, 10);

_________________
sudo rm -rf /
Sat Apr 27, 2013 5:58 pm
Profile
john6672
Rookie

Joined: Sat Apr 27, 2013 3:53 pm
Posts: 7
Post Re: How to draw Bar charts on NXT with Robotc
magicode wrote:
The variables can be used just like numbers. You can do: nxtFillRect (10, maxLight, 70, 10);


Oh that makes it easy :) I have one more question, how would i create a automatic calibration mechanism to calibrate the light sensor using the buttons on the robot brick?
Sat Apr 27, 2013 6:21 pm
Profile
mightor
Moderator
Moderator
User avatar

Joined: Wed Mar 05, 2008 8:14 am
Posts: 3107
Location: Rotterdam, The Netherlands
Post Re: How to draw Bar charts on NXT with Robotc
You can do that with my drivers as well. Just take a look at lego-light* :)

= Xander

_________________
| Professional Conduit of Reasonableness
| (Title bestowed upon on the 8th day of November, 2013)
| My Blog: I'd Rather Be Building Robots
| ROBOTC 3rd Party Driver Suite: [Project Page]
Sun Apr 28, 2013 1:26 am
Profile WWW
john6672
Rookie

Joined: Sat Apr 27, 2013 3:53 pm
Posts: 7
Post Re: How to draw Bar charts on NXT with Robotc
Graph is working now I want to sort the readings of all three sensors in acending order and show a different graph for them. My question is how would i sort readings which are in array?
Mon Apr 29, 2013 10:31 am
Profile
mightor
Moderator
Moderator
User avatar

Joined: Wed Mar 05, 2008 8:14 am
Posts: 3107
Location: Rotterdam, The Netherlands
Post Re: How to draw Bar charts on NXT with Robotc
Check out my tutorial: http://botbench.com/blog/2012/07/21/tut ... your-data/

= Xander

_________________
| Professional Conduit of Reasonableness
| (Title bestowed upon on the 8th day of November, 2013)
| My Blog: I'd Rather Be Building Robots
| ROBOTC 3rd Party Driver Suite: [Project Page]
Mon Apr 29, 2013 12:37 pm
Profile WWW
john6672
Rookie

Joined: Sat Apr 27, 2013 3:53 pm
Posts: 7
Post Re: How to draw Bar charts on NXT with Robotc
I used the exact same approach however the "sorted graphs" are not being displayed. This is the code so far :

Code:
#pragma config(Sensor, S1,     touch,          sensorTouch)
#pragma config(Sensor, S2,     light,          sensorLightActive)
#pragma config(Sensor, S3,     sound,          sensorSoundDBA)
#pragma config(Sensor, S4,     sonar,          sensorSONAR)
//*!!Code automatically generated by 'ROBOTC' configuration wizard               !!*//
typedef struct {
int x;
int y;
}pixel;

void clear()
{

        nxtDisplayClearTextLine(1);
        nxtDisplayClearTextLine(2);
        nxtDisplayClearTextLine(3);
        nxtDisplayClearTextLine(4);
        nxtDisplayClearTextLine(5);
        nxtDisplayClearTextLine(6);
        nxtDisplayClearTextLine(7);

}


task read()
{
   int light_readings[60];
  int sound_readings[60];
  int sonar_readings[60];
  int lightcount=0;
  int soundcount=0;
  int sonarcount=0;
  int tot=0;
  int maxLight=SensorValue[light];
  int minLight=SensorValue[light];
  int maxSound=SensorValue[sound];
  int minSound=SensorValue[sound];
  int maxSonar=SensorValue[sonar];
  int minSonar=SensorValue[sonar];
  ClearTimer(T1);

  while (time1[T1] < 20000)
  {
     if (SensorValue[light]<minLight)
    {
      minLight=SensorValue[light];
    }
     if (SensorValue[light]>maxLight)
    {
         maxLight=SensorValue[light];
    }
    if (SensorValue[sound]<minSound)
    {
         minSound=SensorValue[sound];
      }
      if (SensorValue[sound]>maxSound)
    {
         maxSound=SensorValue[sound];
    }
    if (SensorValue[sonar]<minSonar)
      {
        minSonar=SensorValue[sonar];
       }
       if (SensorValue[sonar]>maxSonar)
      {
         maxSonar=SensorValue[sonar];
     }

      light_readings[lightcount] = SensorValue[light];
     lightcount=lightcount +1;
     sound_readings[soundcount] = SensorValue[sound];
     soundcount= soundcount +1;
     sonar_readings[sonarcount] = SensorValue[sonar];
     sonarcount= sonarcount +1;
     tot= lightcount + soundcount + sonarcount;
     wait1Msec(1000);

     if(motor[motorB]<0)
     {
        wait10Msec(150);
      }
      while (time1[T1] >= 20000)
     {
        motor[motorB] = 0;
       motor[motorC] = 0;
       nxtDisplayString(1, "Light:", minLight, maxLight);
       nxtDisplayString(2, "Min=%i Max=%i", minLight, maxLight);
       nxtDisplayString(3, "Noise:", minSound, maxSound);
       nxtDisplayString(4, "Min:%i Max:%i", minSound, maxSound);
       nxtDisplayString(5, "Distance:", minSonar, maxSonar);
       nxtDisplayString(6, "Min:%i Max:%i", minSonar, maxSonar);
       nxtDisplayString(7, "Tot Readings:%i", tot);

       if(nNxtButtonPressed == 1) // Unsorted Light Graph
      {
        wait10Msec(10);
        while(nNxtButtonPressed == -1)
        {
          while(true)
          {
             clear();

            pixel p[60];
            int i;
            for(i=0; i<60; i++)
            {
              p[i].x = i;
              p[i].y = light_readings[i]/2;
            }
            for(i=0; i<60; i++)
            {
              nxtDrawLine(p[i].x,0,p[i].x, p[i].y);
            }
            wait1Msec(100);
   


   if(nNxtButtonPressed == 1) // sorted Light Graph
            {
              wait10Msec(10);
              while(nNxtButtonPressed == -1)
              {
                while(true)
                {
                  clear();

      while (true)
          {

              for(int j = 0; j < (lightcount - 1); j++)
           {
                if (light_readings[j] > light_readings[j+1])
                 {
                      int temp;
      
                    temp = light_readings[j];

                      light_readings[j] = light_readings[j+1];

                    light_readings[j+1] = temp;
                   


                  pixel p[60];
                  int i;

                  for(i=0; i<60; i++)
                  {
                    p[i].x = i;
                    p[i].y = sound_readings[j];
                  }

                  for(i=0; i<60; i++)
                  {

                   nxtDrawLine(p[i].x,0,p[i].x, p[i].y);
                  }

                  wait1Msec(100);






           if(nNxtButtonPressed == 1) // Unsorted sound Graph
            {
              wait10Msec(10);
              while(nNxtButtonPressed == -1)
              {
                while(true)
                {
                   clear();

                  pixel p[60];
                  int i;
                  for(i=0; i<60; i++)
                  {
                    p[i].x = i;
                    p[i].y = sound_readings[i];
                  }
                  for(i=0; i<60; i++)
                  {
                    nxtDrawLine(p[i].x,0,p[i].x, p[i].y);
                  }
                  wait1Msec(100);

                  if(nNxtButtonPressed == 1) // Unsorted sonar Graph
                  {
                    wait10Msec(10);
                    while(nNxtButtonPressed == -1)
                    {
                      while(true)
                      {
                         clear();

                        pixel p[60];
                        int i;
                        for(i=0; i<60; i++)
                        {
                          p[i].x = i;
                          p[i].y = sonar_readings[i]/6;
                        }
                        for(i=0; i<60; i++)
                        {
                          nxtDrawLine(p[i].x,0,p[i].x, p[i].y);
                        }
                        wait1Msec(100);
                      }
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

task main()
{
   wait10Msec(100);
  ClearTimer(T1);

  StartTask( read );
  while (time1(T1)<=20000)
  {
    int ranNum1 = 40-random(30);
    int ranNum2 = 40-random(30);
//Sonar Part
    if(SensorValue[sonar]<30)
    {
       motor[motorB] = -30;
      motor[motorC] = -30;
      wait10Msec(100);
      motor[motorB] = -30;
      motor[motorC] = 30;
      wait10Msec(100 - random(50));
    }
//Light Part
    if (SensorValue[light] >= 35 || SensorValue[light] <30)
    {
      motor[motorB] = ranNum1;
      motor[motorC] = ranNum2;
      wait1Msec(1);
    }

    else if(SensorValue[light] < 35)
    {
      wait10Msec(4);

      if(SensorValue[light] >= 31 && SensorValue[light] < 35)
      {
        motor[motorB] = -30;
        motor[motorC] = -30;
        wait10Msec(100);
        motor[motorB] = -30;
        motor[motorC] = 30;
        wait10Msec(100 - random(50));
      }
    }
  }
}


I am totally lost in the code :?
Mon Apr 29, 2013 1:48 pm
Profile
mightor
Moderator
Moderator
User avatar

Joined: Wed Mar 05, 2008 8:14 am
Posts: 3107
Location: Rotterdam, The Netherlands
Post Re: How to draw Bar charts on NXT with Robotc
Put the sorting code in a separate function, same applies to the displaying code. This code has so many levels, I fear I will get lost without a map!

I will doa little clean up and paste the code in here. Bear with me!

= Xander

_________________
| Professional Conduit of Reasonableness
| (Title bestowed upon on the 8th day of November, 2013)
| My Blog: I'd Rather Be Building Robots
| ROBOTC 3rd Party Driver Suite: [Project Page]
Mon Apr 29, 2013 3:04 pm
Profile WWW
mightor
Moderator
Moderator
User avatar

Joined: Wed Mar 05, 2008 8:14 am
Posts: 3107
Location: Rotterdam, The Netherlands
Post Re: How to draw Bar charts on NXT with Robotc
I am sorry, but your code is such a mess, I cannot fix this. Here is some advise:
  • Throw this code out
  • on a piece of paper, write down EXACTLY what you want your code to.
  • Break those things down into separate functions
= Xander

_________________
| Professional Conduit of Reasonableness
| (Title bestowed upon on the 8th day of November, 2013)
| My Blog: I'd Rather Be Building Robots
| ROBOTC 3rd Party Driver Suite: [Project Page]
Mon Apr 29, 2013 3:20 pm
Profile WWW
NeXT-Generation
Senior Roboticist
User avatar

Joined: Wed Sep 28, 2011 10:13 pm
Posts: 630
Location: If I told you, I'd have to kill you.
Post Re: How to draw Bar charts on NXT with Robotc
This is messy even by my standards... :shock:

I'd suggest doing what Xander says, because used as I am to messy code, I can't figure it out either.

_________________
A.K.A. inxt-generation
Self-proclaimed genius, and future world dominator.
My Brickshelf Folder
"Don't they teach recreational mathematics anymore?" - The Tenth Doctor
Bow down to Nikola Tesla, King of the Geek Gods.
Mon Apr 29, 2013 3:22 pm
Profile WWW
mightor
Moderator
Moderator
User avatar

Joined: Wed Mar 05, 2008 8:14 am
Posts: 3107
Location: Rotterdam, The Netherlands
Post Re: How to draw Bar charts on NXT with Robotc
This code actually generated an error I had never seen before:
Code:
**Severe*:Out of memory space for nested { .. } blocks or procedures (1116/1024):Nested:496/496Pad:0Var/Temp:620/0
**Severe*:Out of memory space for nested { .. } blocks or procedures

I've seen plenty of errors in the 5+ years I've been using ROBOTC, but this one is definitely a doozy.

= Xander

_________________
| Professional Conduit of Reasonableness
| (Title bestowed upon on the 8th day of November, 2013)
| My Blog: I'd Rather Be Building Robots
| ROBOTC 3rd Party Driver Suite: [Project Page]
Mon Apr 29, 2013 3:27 pm
Profile WWW
NeXT-Generation
Senior Roboticist
User avatar

Joined: Wed Sep 28, 2011 10:13 pm
Posts: 630
Location: If I told you, I'd have to kill you.
Post Re: How to draw Bar charts on NXT with Robotc
Good lord. What a mess of errors.

Code:
File "NewFile_Template001.c" compiled on Apr 29 2013 15:46:01
**Severe*:Out of memory space for nested { .. } blocks or procedures (1360/1024):Nested:980/980Pad:0Var/Temp:380/0
**Severe*:Out of memory space for nested { .. } blocks or procedures
**Error**:Ummatched left brace '{'
**Error**:Ummatched left brace '{'
**Error**:Ummatched left brace '{'
**Error**:Ummatched left brace '{'
**Error**:Ummatched left brace '{'
**Error**:Ummatched left brace '{'
**FATAL**:Too many scope levels
**FATAL**:Too many scope levels
**FATAL**:Too many scope levels
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Too many scope levels
**FATAL**:Too many scope levels
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**Error**:Task 'main' is not defined at global scope level
**Error**:Tasks must be defined at main scope level
**FATAL**:Too many scope levels
**FATAL**:Too many scope levels
**FATAL**:Too many scope levels
**FATAL**:Too many scope levels
**FATAL**:Bad Scope level -- internal error
**FATAL**:Too many scope levels
**FATAL**:Bad Scope level -- internal error
**FATAL**:Too many scope levels
**FATAL**:Too many scope levels
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**FATAL**:Bad Scope level -- internal error
**Error**:Expected->'}'. Found 'EOF'

Compile Statistics:  (NewFile_Template001.c)
    0.013 Total Compile Time (seconds)
        0 Total code bytes, (after 0 bytes removed during optimization)
        0 Constant Pool Size (in bytes)
        0 Used memory locations (of 15000), 2 Tasks, 1 Procedures
      264 User Source file lines,     1,292 tokens
    7,059 System Include file lines, 30,862 tokens
       70 Errors, 0 Warnings, 0 Info Messages
                                 CPU     ......Lines/sec.....
                             Seconds         Total     Source
     Scanner/parsing: Setup    0.007     1,100,820     39,685
    Scanner/parsing: System    0.000    15,426,221    556,127
Scanner/parsing: User Files    0.005     1,530,485     55,175
            Code Generation    0.000             0          0
              Code Optimize    0.000             0          0
                      Total    0.013       572,893     20,653
       43 Total symbols added to symbol table
    1.099 Avg hash bucket depth (1.0 is best possible)


This really needs to just be completely re-written.

_________________
A.K.A. inxt-generation
Self-proclaimed genius, and future world dominator.
My Brickshelf Folder
"Don't they teach recreational mathematics anymore?" - The Tenth Doctor
Bow down to Nikola Tesla, King of the Geek Gods.
Mon Apr 29, 2013 3:47 pm
Profile WWW
Display posts from previous:  Sort by  
Reply to topic   Page 1 of 2
  [ 16 posts ]  Go to page 1, 2  Next

Board index » ROBOTC Applications » ROBOTC for LEGO MINDSTORMS

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 2 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  



Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by ST Software for PTF.