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{"version":3,"file":"buildLine.mjs","sources":["../../src/utils/buildLine.ts"],"sourcesContent":["import { Point, SHAPES } from '@pixi/core';\nimport { curves, LINE_CAP, LINE_JOIN } from '../const';\n\nimport type { Polygon } from '@pixi/core';\nimport type { GraphicsData } from '../GraphicsData';\nimport type { GraphicsGeometry } from '../GraphicsGeometry';\n\n/**\n * Buffers vertices to draw a square cap.\n *\n * Ignored from docs since it is not directly exposed.\n * @ignore\n * @private\n * @param {number} x - X-coord of end point\n * @param {number} y - Y-coord of end point\n * @param {number} nx - X-coord of line normal pointing inside\n * @param {number} ny - Y-coord of line normal pointing inside\n * @param {number} innerWeight - Weight of inner points\n * @param {number} outerWeight - Weight of outer points\n * @param {boolean} clockwise - Whether the cap is drawn clockwise\n * @param {Array<number>} verts - vertex buffer\n * @returns {number} - no. of vertices pushed\n */\nfunction square(\n x: number,\n y: number,\n nx: number,\n ny: number,\n innerWeight: number,\n outerWeight: number,\n clockwise: boolean, /* rotation for square (true at left end, false at right end) */\n verts: Array<number>\n): number\n{\n const ix = x - (nx * innerWeight);\n const iy = y - (ny * innerWeight);\n const ox = x + (nx * outerWeight);\n const oy = y + (ny * outerWeight);\n\n /* Rotate nx,ny for extension vector */\n let exx; let\n eyy;\n\n if (clockwise)\n {\n exx = ny;\n eyy = -nx;\n }\n else\n {\n exx = -ny;\n eyy = nx;\n }\n\n /* [i|0]x,y extended at cap */\n const eix = ix + exx;\n const eiy = iy + eyy;\n const eox = ox + exx;\n const eoy = oy + eyy;\n\n /* Square itself must be inserted clockwise*/\n verts.push(\n eix, eiy,\n eox, eoy);\n\n return 2;\n}\n\n/**\n * Buffers vertices to draw an arc at the line joint or cap.\n *\n * Ignored from docs since it is not directly exposed.\n * @ignore\n * @private\n * @param {number} cx - X-coord of center\n * @param {number} cy - Y-coord of center\n * @param {number} sx - X-coord of arc start\n * @param {number} sy - Y-coord of arc start\n * @param {number} ex - X-coord of arc end\n * @param {number} ey - Y-coord of arc end\n * @param {Array<number>} verts - buffer of vertices\n * @param {boolean} clockwise - orientation of vertices\n * @returns {number} - no. of vertices pushed\n */\nfunction round(\n cx: number,\n cy: number,\n sx: number,\n sy: number,\n ex: number,\n ey: number,\n verts: Array<number>,\n clockwise: boolean, /* if not cap, then clockwise is turn of joint, otherwise rotation from angle0 to angle1 */\n): number\n{\n const cx2p0x = sx - cx;\n const cy2p0y = sy - cy;\n\n let angle0 = Math.atan2(cx2p0x, cy2p0y);\n let angle1 = Math.atan2(ex - cx, ey - cy);\n\n if (clockwise && angle0 < angle1)\n {\n angle0 += Math.PI * 2;\n }\n else if (!clockwise && angle0 > angle1)\n {\n angle1 += Math.PI * 2;\n }\n\n let startAngle = angle0;\n const angleDiff = angle1 - angle0;\n const absAngleDiff = Math.abs(angleDiff);\n\n /* if (absAngleDiff >= PI_LBOUND && absAngleDiff <= PI_UBOUND)\n {\n const r1x = cx - nxtPx;\n const r1y = cy - nxtPy;\n\n if (r1x === 0)\n {\n if (r1y > 0)\n {\n angleDiff = -angleDiff;\n }\n }\n else if (r1x >= -curves.epsilon)\n {\n angleDiff = -angleDiff;\n }\n }*/\n\n const radius = Math.sqrt((cx2p0x * cx2p0x) + (cy2p0y * cy2p0y));\n const segCount = ((15 * absAngleDiff * Math.sqrt(radius) / Math.PI) >> 0) + 1;\n const angleInc = angleDiff / segCount;\n\n startAngle += angleInc;\n\n if (clockwise)\n {\n verts.push(\n cx, cy,\n sx, sy);\n\n for (let i = 1, angle = startAngle; i < segCount; i++, angle += angleInc)\n {\n verts.push(\n cx, cy,\n
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