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Update customePaint.js

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qumeng039@126.com 2025-08-12 08:56:18 +08:00
parent 242781ab93
commit f52589a651
1 changed files with 44 additions and 54 deletions
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74
src/utils/customePaint.js
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@ -30,8 +30,6 @@ export const paintNodeFunction = function (ctx, onlyShape) {
this.drawShape(ctx, onlyShape)
}
//按节点类型绘制节点边框
if (this.properties.type != "normal") {
// ctx.beginPath()
// ctx.arc(0, 0, this.radius + 6, 0, Math.PI * 2)
// ctx.lineWidth = 8
@ -39,54 +37,46 @@ export const paintNodeFunction = function (ctx, onlyShape) {
// ctx.stroke()
// 半径 & 样式参数（按需调整）
// ===== 三层：实心圆 + 半透明边框 + 外圈虚线 =====
const rFill = this.radius; // 实心圆半径
const ringWidth = 15; // 半透明边框的宽度
const ringGap = 0; // 实心与半透明边框之间的间隙（需要留缝就调大）
const outerGap = 0; // 半透明边框与虚线之间的间隙
const dashWidth = 2; // 虚线线宽
const dash = 2, gap = 4; // 虚线样式
const ringAlphaFactor = 0.5; // 半透明边框的相对透明度（相对于 this.alpha）
const rFill = this.radius // 实心圆半径
const ringWidth = 15 // 半透明边框的宽度
const ringGap = 0 // 实心与半透明边框之间的间隙（需要留缝就调大）
const outerGap = 0 // 半透明边框与虚线之间的间隙
const dashWidth = 2 // 虚线线宽
const dash = 2,
gap = 4 // 虚线样式
const ringAlphaFactor = 0.5 // 半透明边框的相对透明度（相对于 this.alpha）
// 1) 中间实心圆（填充）
ctx.save();
ctx.beginPath();
ctx.arc(0, 0, rFill, 0, Math.PI * 2);
ctx.fillStyle = `rgba(${this.fillColor}, ${this.alpha})`;
ctx.fill();
ctx.restore();
ctx.save()
ctx.beginPath()
ctx.arc(0, 0, rFill, 0, Math.PI * 2)
ctx.fillStyle = `rgba(${this.fillColor}, ${this.alpha})`
ctx.fill()
ctx.restore()
// 2) 同色半透明边框（描边，不是挖空）
ctx.save();
ctx.beginPath();
const rRing = rFill + ringGap + ringWidth / 2;
ctx.arc(0, 0, rRing, 0, Math.PI * 2);
ctx.lineWidth = ringWidth;
ctx.setLineDash([]); // 确保这里是实线
ctx.strokeStyle = `rgba(${this.fillColor}, ${this.alpha * ringAlphaFactor})`;
ctx.stroke();
ctx.restore();
ctx.save()
ctx.beginPath()
const rRing = rFill + ringGap + ringWidth / 2
ctx.arc(0, 0, rRing, 0, Math.PI * 2)
ctx.lineWidth = ringWidth
ctx.setLineDash([]) // 确保这里是实线
ctx.strokeStyle = `rgba(${this.fillColor}, ${this.alpha * ringAlphaFactor})`
ctx.stroke()
ctx.restore()
// 3) 外圈虚线（同色）
ctx.save();
ctx.beginPath();
const rDash = rRing + ringWidth / 2 + outerGap + dashWidth / 2;
ctx.arc(0, 0, rDash, 0, Math.PI * 2);
ctx.lineWidth = dashWidth;
ctx.setLineDash([dash, gap]);
ctx.lineCap = 'round';
ctx.strokeStyle = `rgba(${this.fillColor}, ${this.alpha})`;
ctx.stroke();
ctx.setLineDash([]); // 清理，避免影响后续绘制
ctx.restore();
} else {
ctx.save()
ctx.beginPath()
ctx.arc(0, 0, this.radius + 8, 0, Math.PI * 2)
ctx.lineWidth = 12
ctx.setLineDash([4, 4])
ctx.strokeStyle = `rgba(${this.fillColor},${this.alpha * 0.6})`
const rDash = rRing + ringWidth / 2 + outerGap + dashWidth / 2
ctx.arc(0, 0, rDash, 0, Math.PI * 2)
ctx.lineWidth = dashWidth
ctx.setLineDash([dash, gap])
ctx.lineCap = "round"
ctx.strokeStyle = `rgba(${this.fillColor}, ${this.alpha})`
ctx.stroke()
}
ctx.setLineDash([]) // 清理，避免影响后续绘制
ctx.restore()
this.paintText(ctx) //调用内部方法绘制文字
}