{"id":112,"date":"2008-07-07T15:53:32","date_gmt":"2008-07-07T13:53:32","guid":{"rendered":""},"modified":"2019-01-05T13:20:34","modified_gmt":"2019-01-05T11:20:34","slug":"stampare-unimmagine-su-piu-pagine","status":"publish","type":"post","link":"https:\/\/rainbowbreeze.it\/wordpress\/stampare-unimmagine-su-piu-pagine\/","title":{"rendered":"Stampare un’immagine su piu’ pagine"},"content":{"rendered":"

\"blockposter.gif\" Se avete l’esigenza di stampare un’unica immagine su piu’ pagine, ecco qualche link utile:<\/p>\n

Block Posters<\/a>: questo sito permette di caricare un’immagine JPG grande fino ad 1 Mb, scegliere il formato della carta ed orientamento (A4 o US Letter, verticale o orizzontale) ed indicare il numero di fogli su cui suddividere la stampa. Dopo l’elaborazione, si otterra’ un PDF con l’immagine divisa, fetta dopo fetta, nelle pagine richieste.<\/p>\n

The Rasterbator<\/a>: meccanismo di funzionamento molto simile al primo, con la differenza che l’immagine generata e’ una rasterizzazione dell’immagine di partenza. In pratica l’immagine originale viene trasformata in tanti piccoli punti, che visti da vicino non hanno senso, ma quando si osservano da lontano in una visione d’insieme, ritrovano il loro significato originario. Ideale quindi per stampare grandi poster (anche qualche metro di lato) da appendere su grandi muri.<\/p>\n

PRTLGPCT.EXE: Print a Large Bitmap on Multiple Pages<\/a>: se siete dei programmatori, questo articolo dalla KB della Microsoft mostra come realizzare con poche righe di codice un programma in Visual Basic 6 (ma facilmente riadattabile anche al .NET) per stampare un’immagine suddivisa in piu’ pagine.<\/p>\n

<\/p>\n

Ecco lo snippet del codice, basta creare un form, aggiungerci 3 bottoni, un PictureBox, un controllo Common Dialog e copiare quanto segue nel code-behind.<\/p>\n

Option Explicit<\/em><\/p>\n

Const constMaxValue = 32767<\/em><\/p>\n

Dim lngPrinterWidth As Long, lngPrinterHeight As Long
\nDim lngPictureWidth As Long, lngPictureHeight As Long
\nDim lngXCoor As Long, lngYCoor As Long
\nDim sngWidthRatio As Single, sngHeightRatio As Single
\nDim intPageWidth As Integer, intPageHeight As Integer
\nDim bytWidthCount As Byte, bytHeightCount As Byte<\/em><\/p>\n

Private Sub Form_Load()
\nCommand1.Caption = “Load Picture”
\nCommand2.Caption = “Print Single Page”
\nCommand3.Caption = “Print Multiple Pages”
\nEnd Sub<\/em><\/p>\n

Private Sub Command1_Click()
\n‘Opens the common dialog box so you can select a picture file
\n‘to load into the Picture object.
\nDim picFile As Picture
\nCommonDialog1.Filter = “JPEG files|*.jpg|BMP files|*.bmp”
\nCommonDialog1.ShowOpen<\/em><\/p>\n

If CommonDialog1.filename <> “” Then
\nSet picFile = LoadPicture(CommonDialog1.filename)
\nSet Picture1.Picture = picFile
\nForm1.Height = Picture1.Height + 1700
\nForm1.Width = Picture1.Width + 1400
\nPicture1.Left = 700
\nPicture1.Top = 700
\nEnd If
\nEnd Sub<\/em><\/p>\n

Private Sub Command2_Click()
\n‘Print the picture on a single sheet. Picture object automatically
\n‘adjusts picture size to fit into a single sheet.
\nPrinter.PaintPicture Picture1.Picture, lngXCoor, lngYCoor
\nPrinter.EndDoc
\nMsgBox “Done Sending Info to Printer”
\nEnd Sub<\/em><\/p>\n

Private Sub Command3_Click()
\n‘Print the picture on multiple sheets.<\/em><\/p>\n

‘Load the dimensions of the image and printer into memory
\nlngPictureWidth = Picture1.Picture.Width
\nlngPictureHeight = Picture1.Picture.Height
\nlngPrinterWidth = Printer.Width
\nlngPrinterHeight = Printer.Height<\/em><\/p>\n

‘Calculate the ratios
\nsngWidthRatio = lngPictureWidth \/ lngPrinterWidth
\nsngHeightRatio = lngPictureHeight \/ lngPrinterHeight<\/em><\/p>\n

‘Calculate how many pages are required to print the picture
\nintPageWidth = constMaxValue – Int(constMaxValue – sngWidthRatio)
\nintPageHeight = constMaxValue – Int(constMaxValue – _
\nsngHeightRatio)<\/em><\/p>\n

For bytWidthCount = 1 To intPageWidth<\/em><\/p>\n

‘Calculate the x-offset
\nlngXCoor = -lngPrinterWidth * (bytWidthCount – 1)<\/em><\/p>\n

For bytHeightCount = 1 To intPageHeight<\/em><\/p>\n

‘Calculate the y-offset
\nlngYCoor = -lngPrinterHeight * (bytHeightCount – 1)<\/em><\/p>\n

‘Use the Paint Picture method to print the picture
\nPrinter.PaintPicture Picture1.Picture, _
\nlngXCoor, _
\nlngYCoor, _
\nlngPictureWidth, _
\nlngPictureHeight
\n‘start a new page
\nPrinter.NewPage
\nNext bytHeightCount
\nNext bytWidthCount<\/em><\/p>\n

Printer.EndDoc
\nMsgBox “Done Sending Info to Printer”
\nEnd Sub
\n<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Se avete l’esigenza di stampare un’unica immagine su piu’ pagine, ecco qualche link utile: Block Posters: questo sito permette di caricare un’immagine JPG grande fino ad 1 Mb, scegliere il formato della carta ed orientamento (A4 o US Letter, verticale o orizzontale) ed indicare il numero di fogli su cui suddividere la stampa. Dopo l’elaborazione, … Continue reading Stampare un’immagine su piu’ pagine<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":3,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-112","post","type-post","status-publish","format-standard","hentry","category-tech"],"yoast_head":"\nStampare un'immagine su piu' pagine - Rainbowbreeze<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rainbowbreeze.it\/stampare-unimmagine-su-piu-pagine\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Stampare un'immagine su piu' pagine - Rainbowbreeze\" \/>\n<meta property=\"og:description\" content=\"Se avete l’esigenza di stampare un’unica immagine su piu’ pagine, ecco qualche link utile: Block Posters: questo sito permette di caricare un’immagine JPG grande fino ad 1 Mb, scegliere il formato della carta ed orientamento (A4 o US Letter, verticale o orizzontale) ed indicare il numero di fogli su cui suddividere la stampa. 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