63 lines
1.8 KiB
Java
63 lines
1.8 KiB
Java
var Line = require('../math/line');
|
|
|
|
var Quadratic = require('../math/quadratic');
|
|
|
|
var Cubic = require('../math/cubic');
|
|
|
|
var Arc = require('../math/arc');
|
|
|
|
module.exports = {
|
|
line: function line(x1, y1, x2, y2, lineWidth, x, y) {
|
|
var box = Line.box(x1, y1, x2, y2, lineWidth);
|
|
|
|
if (!this.box(box.minX, box.maxX, box.minY, box.maxY, x, y)) {
|
|
return false;
|
|
}
|
|
|
|
var d = Line.pointDistance(x1, y1, x2, y2, x, y);
|
|
|
|
if (isNaN(d)) {
|
|
return false;
|
|
}
|
|
|
|
return d <= lineWidth / 2;
|
|
},
|
|
polyline: function polyline(points, lineWidth, x, y) {
|
|
var l = points.length - 1;
|
|
|
|
if (l < 1) {
|
|
return false;
|
|
}
|
|
|
|
for (var i = 0; i < l; i++) {
|
|
var x1 = points[i][0];
|
|
var y1 = points[i][1];
|
|
var x2 = points[i + 1][0];
|
|
var y2 = points[i + 1][1];
|
|
|
|
if (this.line(x1, y1, x2, y2, lineWidth, x, y)) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
},
|
|
cubicline: function cubicline(x1, y1, x2, y2, x3, y3, x4, y4, lineWidth, x, y) {
|
|
return Cubic.pointDistance(x1, y1, x2, y2, x3, y3, x4, y4, x, y) <= lineWidth / 2;
|
|
},
|
|
quadraticline: function quadraticline(x1, y1, x2, y2, x3, y3, lineWidth, x, y) {
|
|
return Quadratic.pointDistance(x1, y1, x2, y2, x3, y3, x, y) <= lineWidth / 2;
|
|
},
|
|
arcline: function arcline(cx, cy, r, startAngle, endAngle, clockwise, lineWidth, x, y) {
|
|
return Arc.pointDistance(cx, cy, r, startAngle, endAngle, clockwise, x, y) <= lineWidth / 2;
|
|
},
|
|
rect: function rect(rx, ry, width, height, x, y) {
|
|
return rx <= x && x <= rx + width && ry <= y && y <= ry + height;
|
|
},
|
|
circle: function circle(cx, cy, r, x, y) {
|
|
return Math.pow(x - cx, 2) + Math.pow(y - cy, 2) <= Math.pow(r, 2);
|
|
},
|
|
box: function box(minX, maxX, minY, maxY, x, y) {
|
|
return minX <= x && x <= maxX && minY <= y && y <= maxY;
|
|
}
|
|
}; |