1 line
15 KiB
JSON
1 line
15 KiB
JSON
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{"ast":null,"code":"import * as vec2 from './vector.js';\nimport * as curve from './curve.js';\nvar mathMin = Math.min;\nvar mathMax = Math.max;\nvar mathSin = Math.sin;\nvar mathCos = Math.cos;\nvar PI2 = Math.PI * 2;\nvar start = vec2.create();\nvar end = vec2.create();\nvar extremity = vec2.create();\nexport function fromPoints(points, min, max) {\n if (points.length === 0) {\n return;\n }\n\n var p = points[0];\n var left = p[0];\n var right = p[0];\n var top = p[1];\n var bottom = p[1];\n\n for (var i = 1; i < points.length; i++) {\n p = points[i];\n left = mathMin(left, p[0]);\n right = mathMax(right, p[0]);\n top = mathMin(top, p[1]);\n bottom = mathMax(bottom, p[1]);\n }\n\n min[0] = left;\n min[1] = top;\n max[0] = right;\n max[1] = bottom;\n}\nexport function fromLine(x0, y0, x1, y1, min, max) {\n min[0] = mathMin(x0, x1);\n min[1] = mathMin(y0, y1);\n max[0] = mathMax(x0, x1);\n max[1] = mathMax(y0, y1);\n}\nvar xDim = [];\nvar yDim = [];\nexport function fromCubic(x0, y0, x1, y1, x2, y2, x3, y3, min, max) {\n var cubicExtrema = curve.cubicExtrema;\n var cubicAt = curve.cubicAt;\n var n = cubicExtrema(x0, x1, x2, x3, xDim);\n min[0] = Infinity;\n min[1] = Infinity;\n max[0] = -Infinity;\n max[1] = -Infinity;\n\n for (var i = 0; i < n; i++) {\n var x = cubicAt(x0, x1, x2, x3, xDim[i]);\n min[0] = mathMin(x, min[0]);\n max[0] = mathMax(x, max[0]);\n }\n\n n = cubicExtrema(y0, y1, y2, y3, yDim);\n\n for (var i = 0; i < n; i++) {\n var y = cubicAt(y0, y1, y2, y3, yDim[i]);\n min[1] = mathMin(y, min[1]);\n max[1] = mathMax(y, max[1]);\n }\n\n min[0] = mathMin(x0, min[0]);\n max[0] = mathMax(x0, max[0]);\n min[0] = mathMin(x3, min[0]);\n max[0] = mathMax(x3, max[0]);\n min[1] = mathMin(y0, min[1]);\n max[1] = mathMax(y0, max[1]);\n min[1] = mathMin(y3, min[1]);\n max[1] = mathMax(y3, max[1]);\n}\nexport function fromQuadratic(x0, y0, x1, y1, x2, y2, min, max) {\n var quadraticExtremum = curve.quadraticExtremum;\n var quadraticAt = curve.quadraticAt;\n var tx = mathMax(mathMin(quadraticExtremum(x0, x1, x2), 1), 0);\n var ty = mathMax(mathMin(quadraticExtremum(y0, y1, y2), 1), 0);\n var x = quadraticAt(x0, x1, x2, tx);\n var y = quadraticAt(y0, y1, y2, ty);\n min[0] = mathMin(x0, x2, x);\n min[1] = mathMin(y0, y2, y);\n max[0] = mathMax(x0, x2, x);\n max[1] = mathMax(y0, y2, y);\n}\nexport function fromArc(x, y, rx, ry, startAngle, endAngle, anticlockwise, min, max) {\n var vec2Min = vec2.min;\n var vec2Max = vec2.max;\n var diff = Math.abs(startAngle - endAngle);\n\n if (diff % PI2 < 1e-4 && diff > 1e-4) {\n min[0] = x - rx;\n min[1] = y - ry;\n max[0] = x + rx;\n max[1] = y + ry;\n return;\n }\n\n start[0] = mathCos(startAngle) * rx + x;\n start[1] = mathSin(startAngle) * ry + y;\n end[0] = mathCos(endAngle) * rx + x;\n end[1] = mathSin(endAngle) * ry + y;\n vec2Min(min, start, end);\n vec2Max(max, start, end);\n startAngle = startAngle % PI2;\n\n if (startAngle < 0) {\n startAngle = startAngle + PI2;\n }\n\n endAngle = endAngle % PI2;\n\n if (endAngle < 0) {\n endAngle = endAngle + PI2;\n }\n\n if (startAngle > endAngle && !anticlockwise) {\n endAngle += PI2;\n } else if (startAngle < endAngle && anticlockwise) {\n startAngle += PI2;\n }\n\n if (anticlockwise) {\n var tmp = endAngle;\n endAngle = startAngle;\n startAngle = tmp;\n }\n\n for (var angle = 0; angle < endAngle; angle += Math.PI / 2) {\n if (angle > startAngle) {\n extremity[0] = mathCos(angle) * rx + x;\n extremity[1] = mathSin(angle) * ry + y;\n vec2Min(min, extremity, min);\n vec2Max(max, extremity, max);\n }\n }\n}","map":{"version":3,"sources":["D:/Work/WorkSpace/GitWorkSpace/TenShop/resource/ElectronicMall/src啊/ElectronicMallVue/node_modules/zrender/lib/core/bbox.js"],"names":["vec2","curve","mathMin","Math","min","mathMax","max","mathSin","sin","mathCos","cos","PI2","PI","start","create","end","extremity","fromPoints","points","length","p","left","right","top","bottom","i","from
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