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805 lines
11 KiB
805 lines
11 KiB
package com.porcupine.coord;
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import com.porcupine.math.Calc;
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/**
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* Rectangle determined by two coordinates - min and max.
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*
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* @author Ondřej Hruška (MightyPork)
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*/
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public class Rect {
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/** Rect [0, 0, 1, 1] */
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public static final Rect ONE = new Rect(0, 0, 1, 1);
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/** Rect all zeros */
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public static final Rect ZERO = new Rect(0, 0, 0, 0);
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/**
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* Rectangle from size
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*
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* @param min min coord
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* @param size rect size
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* @return the rect
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*/
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public static Rect fromSize(Coord min, Coord size)
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{
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return fromSize(min, size.xi(), size.yi());
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}
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/**
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* Make rect from min coord and size
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*
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* @param min min coord
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* @param width size x
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* @param height size y
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* @return the new rect
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*/
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public static Rect fromSize(Coord min, int width, int height)
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{
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return new Rect(min, min.add(width, height));
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}
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/**
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* Rectangle from size
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*
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* @param i min X
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* @param j min Y
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* @param size rect size
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* @return the rect
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*/
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public static Rect fromSize(int i, int j, CoordI size)
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{
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return fromSize(i, j, size.x, size.y);
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}
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/**
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* Make rect from min coord and size
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*
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* @param x1 min x
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* @param y1 min y
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* @param width size x
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* @param height size y
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* @return the new rect
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*/
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public static Rect fromSize(int x1, int y1, int width, int height)
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{
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return new Rect(x1, y1, x1 + width, y1 + height);
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}
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/** Highest coordinates xy */
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protected Coord max = new Coord();
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/** Lowest coordinates xy */
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protected Coord min = new Coord();
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/**
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* New Rect [0, 0, 0, 0]
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*/
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public Rect() {
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this(0, 0, 0, 0);
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}
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/**
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* Rect [0, 0, size.x, size.y]
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*
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* @param size size coord
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*/
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public Rect(Coord size) {
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this(0, 0, size.x, size.y);
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}
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/**
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* New rect of two coords
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*
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* @param c1 coord 1
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* @param c2 coord 2
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*/
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public Rect(Coord c1, Coord c2) {
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this(c1.x, c1.y, c2.x, c2.y);
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}
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/**
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* New Rect
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*
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* @param x1 lower x
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* @param y1 lower y
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* @param x2 upper x
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* @param y2 upper y
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*/
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public Rect(double x1, double y1, double x2, double y2) {
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setTo(x1, y1, x2, y2);
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}
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/**
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* Rect [0, 0, x, y]
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*
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* @param x width
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* @param y height
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*/
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public Rect(int x, int y) {
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this(0, 0, x, y);
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}
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/**
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* New rect as a copy of other rect
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*
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* @param r other rect
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*/
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public Rect(Rect r) {
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this(r.min.x, r.min.y, r.max.x, r.max.y);
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}
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/**
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* Get offset copy (add)
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*
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* @param move offset vector
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* @return offset copy
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*/
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public Rect add(Coord move)
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{
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return copy().add_ip(move);
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}
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/**
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* Add X and Y to all coordinates in a copy
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*
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* @param x x to add
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* @param y y to add
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* @return copy changed
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*/
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public Rect add(double x, double y)
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{
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return add(new Vec(x, y));
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}
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/**
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* Offset in place (add)
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*
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* @param move offset vector
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* @return this
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*/
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public Rect add_ip(Coord move)
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{
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min.add_ip(move);
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max.add_ip(move);
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return this;
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}
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/**
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* Add X and Y to all coordinates in place
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*
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* @param x x to add
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* @param y y to add
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* @return this
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*/
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public Rect add_ip(double x, double y)
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{
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return add_ip(new Vec(x, y));
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}
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/**
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* Get a copy
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*
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* @return copy
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*/
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public Rect copy()
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{
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return new Rect(this);
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}
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/**
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* Divide in copy
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*
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* @param factor divisor
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* @return offset copy
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*/
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public Rect div(double factor)
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{
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return copy().div_ip(factor);
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}
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/**
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* Divide coord in place
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*
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* @param factor divisor
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* @return this
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*/
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public Rect div_ip(double factor)
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{
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min.div_ip(factor);
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max.div_ip(factor);
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return this;
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}
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/**
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* Get copy with the same center and height=0
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*
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* @return line
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*/
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public Rect getAxisH()
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{
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return new Rect(getCenterLeft(), getCenterRight());
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}
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/**
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* Get copy with the same center and width=0
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*
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* @return line
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*/
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public Rect getAxisV()
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{
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return new Rect(getCenterDown(), getCenterTop());
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}
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/**
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* Get rect center
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*
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* @return center
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*/
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public Coord getCenter()
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{
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return min.midTo(max);
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}
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/**
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* Get center of the lower edge.
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*
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* @return center
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*/
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public Coord getCenterDown()
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{
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return new Coord((max.x + min.x) / 2, min.y);
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}
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/**
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* Get center of the left edge.
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*
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* @return center
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*/
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public Coord getCenterLeft()
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{
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return new Coord(min.x, (max.y + min.y) / 2);
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}
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/**
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* Get center of the right edge.
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*
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* @return center
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*/
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public Coord getCenterRight()
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{
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return new Coord(max.x, (max.y + min.y) / 2);
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}
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/**
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* Get center of the top edge.
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*
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* @return center
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*/
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public Coord getCenterTop()
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{
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return new Coord((max.x + min.x) / 2, max.y);
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}
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/**
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* Get bottom edge rect
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*
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* @return line
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*/
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public Rect getEdgeBottom()
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{
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return new Rect(getLeftBottom(), getRightBottom());
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}
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/**
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* Get left edge rect
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*
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* @return line
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*/
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public Rect getEdgeLeft()
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{
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return new Rect(getLeftBottom(), getLeftTop());
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}
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/**
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* Get right edge rect
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*
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* @return line
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*/
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public Rect getEdgeRight()
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{
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return new Rect(getRightBottom(), getRightTop());
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}
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/**
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* Get top edge rect
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*
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* @return line
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*/
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public Rect getEdgeTop()
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{
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return new Rect(getLeftTop(), getRightTop());
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}
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/**
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* Get left bottom
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*
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* @return center
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*/
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public Coord getLeftBottom()
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{
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return new Coord(min.x, min.y);
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}
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/**
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* Get left top
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*
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* @return center
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*/
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public Coord getLeftTop()
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{
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return new Coord(min.x, max.y);
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}
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/**
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* @return highjest coordinates xy
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*/
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public Coord getMax()
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{
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return max;
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}
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/**
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* @return lowest coordinates xy
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*/
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public Coord getMin()
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{
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return min;
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}
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/**
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* Get right bottom
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*
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* @return center
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*/
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public Coord getRightBottom()
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{
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return new Coord(max.x, min.y);
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}
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/**
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* Get right top
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*
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* @return center
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*/
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public Coord getRightTop()
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{
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return new Coord(max.x, max.y);
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}
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/**
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* Get size (width, height) as (x,y)
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*
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* @return coord of width,height
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*/
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public Coord getSize()
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{
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return new Coord(Math.abs(min.x - max.x), Math.abs(min.y - max.y));
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}
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/**
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* Grow to sides in copy
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*
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* @param grow grow size (added to each side)
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* @return grown copy
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*/
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public Rect grow(Coord grow)
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{
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return copy().grow_ip(grow);
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}
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/**
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* Grow to sides in copy
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*
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* @param x x to add
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* @param y y to add
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* @return grown copy
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*/
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public Rect grow(double x, double y)
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{
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return copy().grow_ip(x, y);
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}
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/**
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* Grow to sides in place
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*
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* @param grow grow size (added to each side)
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* @return this
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*/
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public Rect grow_ip(Coord grow)
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{
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min.sub_ip(grow);
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max.add_ip(grow);
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return this;
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}
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/**
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* Grow to sides in place
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*
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* @param x x to add
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* @param y y to add
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* @return this
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*/
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public Rect grow_ip(double x, double y)
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{
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min.sub_ip(x, y);
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max.add_ip(x, y);
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return this;
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}
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/**
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* Grow down in copy
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*
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* @param down added pixels
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* @return grown copy
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*/
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public Rect growDown(double down)
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{
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return copy().growDown_ip(down);
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}
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/**
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* Grow down in place
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*
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* @param down added pixels
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* @return this
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*/
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public Rect growDown_ip(double down)
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{
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min.sub_ip(0, down);
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return this;
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}
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/**
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* Grow to left in copy
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*
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* @param left added pixels
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* @return grown copy
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*/
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public Rect growLeft(double left)
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{
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return copy().growLeft_ip(left);
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}
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/**
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* Grow to left in place
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*
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* @param left added pixels
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* @return this
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*/
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public Rect growLeft_ip(double left)
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{
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min.sub_ip(left, 0);
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return this;
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}
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/**
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* Grow to right in copy
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*
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* @param right added pixels
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* @return grown copy
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*/
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public Rect growRight(double right)
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{
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return copy().growRight_ip(right);
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}
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/**
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* Grow to right in place
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*
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* @param right added pixels
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* @return this
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*/
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public Rect growRight_ip(double right)
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{
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max.add_ip(right, 0);
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return this;
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}
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/**
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* Grow up in copy
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*
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* @param add added pixels
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* @return grown copy
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*/
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public Rect growUp(double add)
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{
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return copy().growUp_ip(add);
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}
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/**
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* Grow up in place
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*
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* @param add added pixels
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* @return this
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*/
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public Rect growUp_ip(double add)
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{
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max.add_ip(0, add);
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return this;
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}
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/**
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* Check if point is inside this rectangle
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*
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* @param point point to test
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* @return is inside
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*/
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public boolean isInside(Coord point)
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{
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return Calc.inRange(point.x, min.x, max.x) && Calc.inRange(point.y, min.y, max.y);
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}
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/**
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* Multiply in copy
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*
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* @param factor multiplier
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* @return offset copy
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*/
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public Rect mul(double factor)
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{
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return copy().mul_ip(factor);
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}
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/**
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* Multiply by number (useful for centered rects)
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*
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* @param x x multiplier
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* @param y y multiplier
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* @return copy multiplied
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*/
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public Rect mul(double x, double y)
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{
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return copy().mul_ip(x, y);
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}
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/**
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* Multiply coord in place
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*
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* @param factor multiplier
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* @return this
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*/
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public Rect mul_ip(double factor)
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{
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min.mul_ip(factor);
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max.mul_ip(factor);
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return this;
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}
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/**
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* Multiply coord in place
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*
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* @param x multiplier x
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* @param y multiplier y
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* @return this
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*/
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public Rect mul_ip(double x, double y)
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{
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min.mul_ip(x, y, 1);
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max.mul_ip(x, y, 1);
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return this;
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}
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/**
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* Round coords in copy
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*
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* @return copy, rounded
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*/
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public Rect round()
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{
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return new Rect(min.round(), max.round());
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}
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/**
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* Round this in place
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*
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* @return this
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*/
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public Rect round_ip()
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{
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min.round_ip();
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max.round_ip();
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return this;
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}
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/**
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* Set to [0,0,coord.x,coord.y]
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*
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* @param coord size coord
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*/
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public void setTo(Coord coord)
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{
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setTo(0, 0, coord.x, coord.y);
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}
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/**
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* Set to coordinates
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*
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* @param x1 lower x
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* @param y1 lower y
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* @param x2 upper x
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* @param y2 upper y
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*/
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public void setTo(double x1, double y1, double x2, double y2)
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{
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min.x = Calc.min(x1, x2);
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min.y = Calc.min(y1, y2);
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max.x = Calc.max(x1, x2);
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max.y = Calc.max(y1, y2);
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}
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/**
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* Set to other rect's coordinates
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*
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* @param r other rect
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*/
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public void setTo(Rect r)
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{
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min.setTo(r.min);
|
|
max.setTo(r.max);
|
|
}
|
|
|
|
|
|
/**
|
|
* Subtract X and Y from all coordinates in a copy
|
|
*
|
|
* @param x x to subtract
|
|
* @param y y to subtract
|
|
* @return copy changed
|
|
*/
|
|
public Rect sub(double x, double y)
|
|
{
|
|
return sub(new Vec(x, y));
|
|
}
|
|
|
|
|
|
/**
|
|
* Get offset copy (subtract)
|
|
*
|
|
* @param move offset vector
|
|
* @return offset copy
|
|
*/
|
|
public Rect sub(Vec move)
|
|
{
|
|
return copy().sub_ip(move);
|
|
}
|
|
|
|
|
|
/**
|
|
* Subtract X and Y from all coordinates in place
|
|
*
|
|
* @param x x to subtract
|
|
* @param y y to subtract
|
|
* @return this
|
|
*/
|
|
public Rect sub_ip(double x, double y)
|
|
{
|
|
return sub_ip(new Vec(x, y));
|
|
}
|
|
|
|
|
|
/**
|
|
* Offset in place (subtract)
|
|
*
|
|
* @param move offset vector
|
|
* @return this
|
|
*/
|
|
public Rect sub_ip(Vec move)
|
|
{
|
|
min.sub_ip(move);
|
|
max.sub_ip(move);
|
|
return this;
|
|
}
|
|
|
|
|
|
@Override
|
|
public String toString()
|
|
{
|
|
return "rect{ " + min + " - " + max + " }";
|
|
}
|
|
|
|
|
|
/**
|
|
* @return lower x
|
|
*/
|
|
public double x1()
|
|
{
|
|
return min.x;
|
|
}
|
|
|
|
|
|
/**
|
|
* @return upper x
|
|
*/
|
|
public double x2()
|
|
{
|
|
return max.x;
|
|
}
|
|
|
|
|
|
/**
|
|
* @return lower y
|
|
*/
|
|
public double y1()
|
|
{
|
|
return min.y;
|
|
}
|
|
|
|
|
|
/**
|
|
* @return upper y
|
|
*/
|
|
public double y2()
|
|
{
|
|
return max.y;
|
|
}
|
|
}
|
|
|