edu.hws.jcm.draw

Class TangentLine

java.lang.Object

edu.hws.jcm.draw.Drawable

edu.hws.jcm.draw.DrawGeometric

edu.hws.jcm.draw.TangentLine

All Implemented Interfaces:

Computable, Serializable

public class TangentLine
extends DrawGeometric

A Tangent line is a line that is tangent to the graph of a specified function of one argument at a specified value of its argument. If added to a CoordinateRect, it will appear as a line. A TangentLine is a Computable object, so should be added to a Controller to be recomputed when the Value or Function changes.

See Also:

Serialized Form

Field Summary

Fields inherited from class edu.hws.jcm.draw.DrawGeometric

a, b, c, color, CROSS, d, fillColor, h, INFINITE_LINE_ABSOLUTE, INFINITE_LINE_RELATIVE, LINE_ABSOLUTE, LINE_CENTERED, LINE_RELATIVE, lineWidth, OVAL_ABSOLUTE, OVAL_CENTERED, OVAL_RELATIVE, RECT_ABSOLUTE, RECT_CENTERED, RECT_RELATIVE, shape, v, x1, x2, y1, y2

Fields inherited from class edu.hws.jcm.draw.Drawable

canvas, coords

Constructor Summary

Constructors

Constructor and Description
TangentLine(Value x, Function f) Create a tangent line to the graph of a function.

Method Summary

Methods inherited from class edu.hws.jcm.draw.DrawGeometric

compute, draw, getColor, getFillColor, getH, getLineWidth, getV, getX1, getX2, getY1, getY2, setColor, setFillColor, setH, setLineWidth, setPoints, setPoints, setShape, setV, setX1, setX2, setY1, setY2

Methods inherited from class edu.hws.jcm.draw.Drawable

getVisible, needsRedraw, setOwnerData, setVisible

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TangentLine

public TangentLine(Value x,
                   Function f)

Create a tangent line to the graph of a function.

Parameters:

x - The x-coordinate where the tangent is drawn.

f - The line is tangent to the graph of this function. This should be a function of one variable.