[Tweets]

15/08/2018 5:16pm
An exciting opportunity to do a well-funded #PhD at the University of Bristol, working on hybrid #autonomous system… [LINK]
08/08/2018 7:25pm
RT @RoboticsWoE: Robotics Teaching Jobs at University of Bristol [LINK]
08/08/2018 7:23pm
RT @SwarmDynamics: From #BEECLUST to BEEPOST (Ogunsakin et al.) a distributed architecture Self-Organizing Flexible Manufacturing System (…

[NXC UserInteraction Library]

Robots Lego Mindstorms Date: Mar 2012

Current version: 1.2 :: Follow me on Twitter for updates

The User Interaction (UIn) Library helps you create standard user interfaces (multi-line aligned texts, buttons, menus, etc.) and capture user actions on the NXT Mindstorms brick.

The library works with the intelligent brick buttons and keeps all your sensor ports free for your program to use.

The UIn Library is a single .h file that can be included with your NXC project. It has been tested with NBC version 1.2.1 r4 and requires the NXC extended firmware. Please read the development setup tutorial if you are not sure how to get extended firmware.

Main features

How it works

Download a demo (XCode) project to try out the whole UserInteraction library.

This is an example of using a sliding menu in order to decide which task to exectute. UIn function createSlidingMenu() is called with appropriate arguments and the program waits until user selects an option from the menu. The user choice is then resolved by the calling task. Note that ExitTo(Task newTask) is used in order to close the current task and start a new one. This prevents unpredictable behaviour of the new task when calling UIn and other functions.

#include "UserInteraction.h"

task main() {

    //-- create menu with 2-line option items
    string menuItems[3] = {"First#Option","Second#Option", "Third#Option"};
    int userResponse = createSlidingMenu("Select#an option",menuItems, 0);

    //-- resolve answer from the sliding menu
    switch (userResponse) {
        case 0:
            // Selected 'First Option'
            ExitTo(onFirstOption);
            break;
        case 1:
            // Selected 'Second Option'
            ExitTo(onSecondOption);
            break;
        default:
            // Selected 'Third Option'
            ExitTo(onThirdOption);
            break;
    }
}

task onFirstOption() {}
task onSecondOption() {}
task onThirdOption() {}

}

Other features

Text drawing functions

Shape-drawing functions

Helper functions

  • int getTextPixelLength (string text_)
  • int getAlignedTextPosition (string text_, UIN_ALIGNMENT alignment_)
  • int normaliseTextXPosition (string text_, int xPosition_)
  • int lastPos(string substr_, string string_)

Math functions

  • int round (float number_)
  • float abs (float number_)

Other


Please comment or email me if you have questions or ideas about new functionality.

Comments

Lenka
[26/03/2013]


Hi Raj, I'm glad you got it sorted, although that is a strange solution as those two macros are defined in the library file itself so you would only add those lines if you wanted to change the values. Anyways, I wish you luck, thanks for downloading the library.
Raj
[26/03/2013]
oh, I got it solved by adding following two lines.

#define QUESTION_DIALOG_BOTTOM_LINE_Y 18
#define SCREEN_PADDING 5

thanks
Raj
[26/03/2013]
hi,

my long wish has been answered by your excellent interface library. I'm getting error while compiling your demo code with lot of syntax error.

I'm using Bric Command Center Version 3.3(build 3.3.8.10) in windows xp. I can see that UserInteraction.h does exist on the same directory.

Am I missing anything ?

thanks
raj


{Please enable JavaScript in order to post comments}

NXTPong

A custom-built lego machine for playing pong, featuring two controllers connected to the Mindstorms NXT brick. Programmed using NXC.

Developing in NXC using XCode

After comparing a number of options, I chose NXC as a pretty good alternative to Robot-C. It supports a lot of things like sensor and motor management, playing of sounds, basic 2D and 3D graphics, etc. Most importantly, you can compile your programs from the command line or from XCode. This tutorial assumes knowledge of XCode 4 and of C. The NXC programming guide is a good reference.

Setting up NXC Development on a Mac

This tutorial provides a step-by-step guide for setting up your Mac or Linux machine and your NXT brick for development with NXC. We will use the enhanced NXC firmware in order to enable extended functions for development.

pyCreeper

The main purpose of pyCreeper is to wrap tens of lines of python code, required to produce graphs that look good for a publication, into functions. It takes away your need to understand various quirks of matplotlib and gives you back ready-to-use and well-documented code.

Designing Robot Swarms

This project looks at the challenges involved in modeling, understanding and designing of multi-robot systems.

Robustness in Foraging E-puck Swarms Through Recruitment

Swarms of five e-puck robots are used in a semi-virtual environment, facilitated by the VICON positioning system. Recruitment can make swarms more robust to noise in robot global positioning data.