Image

Kelas: Image

ImageRenderOptions: aspose.note ImageRenderOptions: from aspose.note import Image ImageRenderOptions: CompositeNode

Image mewakili imej terbenam yang disimpan di dalam OneNote .one fail. Ia mendedahkan bait imej mentah, nama fail asal, dimensi yang dipaparkan, teks alt, URL hiperpautan (jika ada), dan sebarang tag OneNote yang dilampirkan pada imej.

ImageRenderOptions

Name	Type	Access	Description
`FileName`	`str	None`	Read
`FilePath`	`str	None`	Read
`Format`	`str	None`	Read
`Bytes`	`bytes`	Read	Gets the bytes.
`OriginalWidth`	`float	None`	Read
`OriginalHeight`	`float	None`	Read
`Tags`	`list[NoteTag]`	Read	Gets the tags.
`Alignment`	`HorizontalAlignment	None`	Read/Write
`Width`	``	Read	Gets the width.
`Height`	``	Read	Gets the height.
`HorizontalOffset`	``	Read	Gets the horizontal offset.
`VerticalOffset`	``	Read	Gets the vertical offset.
`IsBackground`	``	Read	Gets the is background.
`LastModifiedTime`	``	Read	Gets the last modified time.
`AlternativeTextTitle`	``	Read	Gets the alternative text title.
`AlternativeTextDescription`	``	Read	Gets the alternative text description.
`HyperlinkUrl`	``	Read	Gets the hyperlink url.
`FirstChild`	`Node	None`	Read
`LastChild`	`Node	None`	Read
`ParentNode`	`Node	None`	Read
`Document`	`Document	None`	Read

Warisan dari CompositeNode / Node

Signature	Description
`init(FileName: str	None, FilePath: str
`Replace(image: Image)`	Replaces the current image data with the provided Image instance
`AppendChildLast(node: TNode)` → `TNode`
`AppendChildFirst(node: TNode)` → `TNode`
`InsertChild(index: int, node: TNode)` → `TNode`
`RemoveChild(node: Node)`
`GetEnumerator()` → `Iterator[Node]`
`GetChildNodes(node_type: type[TNode])` → `list[TNode]`
`Accept(visitor: DocumentVisitor)`

ImageRenderOptions

Replace(image)

img.Replace(image: Image) -> None

Menggantikan kandungan ini Image node dengan kandungan node lain Image node, dalam memori. Menyimpan kembali ke .one tidak disokong.

Accept(visitor)

img.Accept(visitor: DocumentVisitor) -> None

ImageRenderOptions VisitImageStart(img) dan VisitImageEnd(img) pada pelawat.

Contoh Penggunaan

Simpan semua imej ke cakera

from aspose.note import Document, Image

doc = Document("MyNotes.one")
for i, img in enumerate(doc.GetChildNodes(Image), start=1):
    filename = img.FileName or f"image_{i}.bin"
    with open(filename, "wb") as f:
        f.write(img.Bytes)
    print(f"Saved: {filename}  ({img.Width} x {img.Height} pts)")

Kesan format imej daripada bait

doc = Document(“MyNotes.one”) for img in doc.GetChildNodes(Image): b = img.Bytes if b[:4] == b’\x89PNG’: fmt = “png” elif b[:2] == b’\xff\xd8’: fmt = “jpeg” elif b[:4] == b’GIF8’: fmt = “gif” else: fmt = “bin” print(f" {img.FileName!r} detected as {fmt}")


### Cari semua imej yang dipautkan

doc = Document("MyNotes.one")
for img in doc.GetChildNodes(Image):
    if img.HyperlinkUrl:
        print(f"  Linked image: {img.FileName!r} -> {img.HyperlinkUrl}")

Baca teks alt

doc = Document(“MyNotes.one”) for img in doc.GetChildNodes(Image): if img.AlternativeTextTitle or img.AlternativeTextDescription: print(f" Alt title: {img.AlternativeTextTitle!r}") print(f" Alt desc: {img.AlternativeTextDescription!r}")


### Periksa tag pada imej

doc = Document("MyNotes.one")
for img in doc.GetChildNodes(Image):
    for tag in img.Tags:
        print(f"  Image tag: label={tag.label!r}  completed={tag.completed}")

Imej per halaman

from aspose.note import Document, Page, Image

doc = Document("MyNotes.one")
for page_num, page in enumerate(doc.GetChildNodes(Page), start=1):
    images = page.GetChildNodes(Image)
    print(f"Page {page_num}: {len(images)} image(s)")

Keselamatan None

FileName adalah None apabila tiada nama fail disimpan: sentiasa sediakan alternatif apabila menulis ke cakera.
Bytes sentiasa merupakan satu bytes objek dan tidak pernah None.
Width dan Height adalah None untuk imej tanpa metadata dimensi.
AlternativeTextTitle, AlternativeTextDescription, dan HyperlinkUrl adalah None apabila tidak ditetapkan.

Lihat Juga

AttachedFile: lampiran fail terbenam
NoteTag: tag pada imej
ImageRenderOptions: nenek moyang Image
Panduan Pembangun Imej dan Fail Dilampirkan
Cara: Menelusuri DOM (KB)