Home > IPCB_PrimitiveObject > toAsync
IPCB_PrimitiveObject.toAsync() method
Convert Primitive to Async primitive
Signature
typescript
function toAsync(): IPCB_PrimitiveObject;1
Returns
Binary embedded object primitive object
Example
javascript
// 1. 生成本次运行专用的坐标,放置一个 400 x 300 的内嵌图片
const x = 2000 + Math.floor(Math.random() * 100000);
const y = 2000 + Math.floor(Math.random() * 100000);
// 4x4 纯色 PNG 的 data URI(binaryData 必须是 data URI 格式,裸 base64 会创建失败)
const imageData = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAIAAAAmkwkpAAAAEElEQVR4nGP4z8AARwzEcQCukw/x0F8jngAAAABJRU5ErkJggg==';
const obj = await eda.pcb_PrimitiveObject.create(3, x, y, imageData, 400, 300, 0, false, 'demo.png', false);
// 2. 切换异步模式后批量修改:放大到 600 x 450 并重命名
const asyncObj = obj.toAsync();
asyncObj.setState_Width(600);
asyncObj.setState_Height(450);
asyncObj.setState_FileName('logo-large.png');
await asyncObj.done();
// 3. 从画布重新读取,确认批量修改已生效(保留现场供观察)
const refetched = await eda.pcb_PrimitiveObject.get(obj.getState_PrimitiveId());
console.log('width:', refetched.getState_Width());
console.log('height:', refetched.getState_Height());
console.log('fileName:', refetched.getState_FileName());1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20