Home > ISCH_PrimitiveAttribute > toAsync
ISCH_PrimitiveAttribute.toAsync() method
Convert Primitive to Async primitive
Signature
typescript
function toAsync(): ISCH_PrimitiveAttribute;1
Returns
Attribute primitive object
Example
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 = 2000 + Math.floor(Math.random() * 6000);
const y = 2000 + Math.floor(Math.random() * 6000);
// 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.sch_PrimitiveComponent.create(devices[0], x, y);
const attrIds = await eda.sch_PrimitiveAttribute.getAllPrimitiveId(comp.getState_PrimitiveId());
const attrs = await eda.sch_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(传入 50,读回 0.5mm)
asyncAttr.setState_FontSize(50);
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.sch_PrimitiveAttribute.get(designator.getState_PrimitiveId());
console.log('isAsync:', asyncAttr.isAsync());
console.log('fontSize:', refetched.getState_FontSize());1
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