removing libs/automation, libs/chassis

This commit is contained in:
Peli de Halleux 2018-05-21 15:19:26 -07:00
parent 1e4edc5109
commit 022a6765bf
5 changed files with 0 additions and 122 deletions

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{
"additionalFilePath": "../../node_modules/pxt-common-packages/libs/automation",
"dependencies": {
"ev3": "file:../ev3"
}
}

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# Chassis
A library to control a chassis.

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/**
* A differential drive robot
*/
//% weight=50 color=#cf00cf
namespace chassis {
/**
* A differential drive robot
*/
//% fixedInstances
export class Chassis {
// the motor pair
public motors: motors.SynchedMotorPair;
// the radius of the wheel (cm)
public wheelRadius: number;
// the distance between the wheels (cm)
public baseLength: number;
constructor() {
this.motors = motors.largeBC;
this.wheelRadius = 3;
this.baseLength = 12;
}
/**
* Makes a differential drive robot move with a given speed (cm/s) and rotation rate (deg/s)
* using a unicycle model.
* @param speed speed of the center point between motors, eg: 10
* @param rotationSpeed rotation of the robot around the center point, eg: 30
* @param distance
**/
//% blockId=motorDrive block="drive %chassis|at %speed|cm/s|turning %rotationSpeed|deg/s"
//% inlineInputMode=inline
//% weight=95 blockGap=8
drive(speed: number, rotationSpeed: number, distance: number = 0) {
if (!speed) {
this.motors.stop();
return;
}
// speed is expressed in %
const R = this.wheelRadius; // cm
const L = this.baseLength; // cm
const PI = 3.14;
const maxw = 170 / 60 * 2 * PI; // rad / s
const maxv = maxw * R; // cm / s
// speed is cm / s
const v = speed; // cm / s
const w = rotationSpeed / 360 * 2 * PI; // rad / s
const vr = (2 * v + w * L) / (2 * R); // rad / s
const vl = (2 * v - w * L) / (2 * R); // rad / s
const sr = vr / maxw * 100; // %
const sl = vl / maxw * 100; // %
// cm / (cm/s) = s
const seconds = distance / speed;
this.motors.tank(sr, sl, seconds, MoveUnit.Seconds)
}
/**
* Sets the wheel radius in centimeters
* @param cm
*/
//% blockId=chassisSetWheelRadius block="set %chassis|wheel radius to %cm|(cm)"
setWheelRadius(cm: number) {
this.wheelRadius = cm;
}
/**
* Sets the base length in centimeters
* @param cm
*/
//% blockId=chassisSetBaseLength block="set %chassis|base length to %cm|(cm)"
setBaseLength(cm: number) {
this.baseLength = cm;
}
/**
* Sets the motors used by the chassis, default is B+C
* @param motors
*/
//% blockId=chassisSetMotors block="set %chassis|motors to %motors"
//% weight=10
setMotors(motors: motors.SynchedMotorPair) {
this.motors = motors;
}
toString(): string {
return `chassis base ${this.baseLength}, wheel ${this.wheelRadius}`;
}
}
//% fixedInstance whenUsed
export const chassis = new Chassis();
}

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{
"name": "chassis",
"description": "Chassis robot support",
"files": [
"README.md",
"chassis.ts"
],
"testFiles": [
"test.ts"
],
"public": true,
"dependencies": {
"core": "file:../core"
}
}

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