Image

Klasa: Image

Image predstavlja ugrađenu sliku pohranjenu unutar OneNote-a .one file. Izlaže sirove bajtove slike, originalno ime datoteke, prikazane dimenzije, alt tekst, URL hiperveze (ako postoji) i sve OneNote oznake prikačene uz sliku.

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

Nasleđeno od 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)`

Replace(image)

img.Replace(image: Image) -> None

Zamenjuje sadržaj ovog Image čvora sadržajem drugog Image čvora, u memoriji. Čuvanje nazad u .one nije podržano.

Accept(visitor)

img.Accept(visitor: DocumentVisitor) -> None

Primeri upotrebe

Sačuvaj sve slike na disk

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)")

Detektuj format slike iz bajtova

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}")


### Pronađi sve povezane slike

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

Pročitaj alt tekst

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}")


### Pregledaj oznake na slikama

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}")

Slike po stranici

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-Safety

FileName je None kada nije sačuvano ime fajla: uvek obezbedite rezervu prilikom upisa na disk.
Bytes je uvek bytes objekat i nikada nije None.
Width i Height su None za slike bez metapodataka o dimenzijama.
AlternativeTextTitle, AlternativeTextDescription, i HyperlinkUrl su None kada nije postavljeno.

Vidi i

AttachedFile: ugrađeni fajl prilozi
NoteTag: oznake na slikama
Vodič za programere: Slike i priloženi fajlovi
Uputstvo: pretraga DOM-a (KB)