Image

Klase: Image

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

Image pārstāv iegultu attēlu, kas saglabāts OneNote .one failā. Tas atklāj neapstrādātos attēla baitus, oriģinālo faila nosaukumu, attēlotās dimensijas, alternatīvo tekstu, hipersaites URL (ja tāda ir) un jebkurus OneNote tagus, kas pievienoti attēlam.

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

Manto no 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

Aizstāj šī elementa saturu Image mezgls ar cita saturu Image mezgls, atmiņā. Atpakaļ saglabāšana uz .one nav atbalstīts.

Accept(visitor)

img.Accept(visitor: DocumentVisitor) -> None

ImageRenderOptions VisitImageStart(img) un VisitImageEnd(img) apmeklētājam.

Lietošanas piemēri

Saglabāt visus attēlus diskā

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)")

Noteikt attēla formātu no baitiem

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}")


### Atrast visus saistītos attēlus

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

Nolasīt alternatīvo tekstu

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}")


### Pārbaudīt tagus attēlos

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}")

Attēli lapā

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)")

None drošība

FileName ir None kad nav saglabāts faila nosaukums: vienmēr nodrošiniet rezerves variantu, rakstot uz diska.
Bytes vienmēr ir bytes objekts un nekad nav None.
Width un Height ir None attēliem, kam nav dimensiju metadatu.
AlternativeTextTitle, AlternativeTextDescription, un HyperlinkUrl ir None ja nav iestatīts.

Skatīt arī

AttachedFile: iekļautas failu pievienojumi
NoteTag: tagi attēlos
ImageRenderOptions: Image priekštecis
Attēlu un pievienoto failu izstrādātāju rokasgrāmata
Kā: pārlūkot DOM (KB)