Home > IPCB_PrimitiveAttribute > toAsync
IPCB_PrimitiveAttribute.toAsync() method
将图元转换为异步图元
签名
typescript
function toAsync(): IPCB_PrimitiveAttribute;1
返回值
属性图元对象
示例
javascript
// 1. 生成本次运行专用的坐标,避免与之前保留的测试器件重合
const x = 20000 + Math.floor(Math.random() * 80000);
const y = 20000 + Math.floor(Math.random() * 80000);
// 2. 放置测试器件并取出 Designator(编号)属性
const devices = await eda.lib_Device.search('C0402');
const comp = await eda.pcb_PrimitiveComponent.create(devices[0], 1, x, y);
const attrIds = await eda.pcb_PrimitiveAttribute.getAllPrimitiveId(comp.getState_PrimitiveId());
const attrs = await eda.pcb_PrimitiveAttribute.get(attrIds);
const designator = attrs.find(a => a.getState_Key() === 'Designator');
// 3. 转换为异步句柄并确认其异步状态
const asyncAttr = designator.toAsync();
// 4. 通过异步句柄修改字号并提交
asyncAttr.setState_FontSize(60);
await asyncAttr.done();
// 5. 从画布重新读取,确认修改已生效(保留现场供观察)
const refetched = await eda.pcb_PrimitiveAttribute.get(designator.getState_PrimitiveId());
console.log('isAsync:', asyncAttr.isAsync());
console.log('fontSize:', refetched.getState_FontSize());1
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