Home > IPCB_PrimitiveAttribute > reset
IPCB_PrimitiveAttribute.reset() method
This API is provided as a beta preview for developers and may change based on feedback that we receive. Do not use this API in a production environment.
Reset the async primitive to the current canvas state
Signature
typescript
function reset(): Promise<IPCB_PrimitiveAttribute>;1
Returns
Promise<IPCB_PrimitiveAttribute>
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 = 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. 记录画布上的原始值
const original = designator.getState_Value();
// 4. 异步模式下改一个错误值,但不提交,直接 reset() 丢弃
const asyncAttr = designator.toAsync();
asyncAttr.setState_Value('SHOULD-DISCARD');
await asyncAttr.reset();
// 5. 从画布重新读取,确认值仍是原始值(保留现场供观察)
const refetched = await eda.pcb_PrimitiveAttribute.get(designator.getState_PrimitiveId());
console.log('value:', original, '→', refetched.getState_Value(), '(修改已丢弃)');1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23