EmfRecorderGraphics2D

Inheritance: java.lang.Object, com.aspose.imaging.fileformats.emf.graphics.MetafileRecorderGraphics2D

public final class EmfRecorderGraphics2D extends MetafileRecorderGraphics2D

Den Emf-inspelningsgrafik

Konstruktörer

KonstruktorBeskrivning
EmfRecorderGraphics2D(Rectangle frame, Size deviceSize, Size deviceSizeMm)Initierar en ny instans av klassen EmfRecorderGraphics2D.

Metoder

MetodBeskrivning
getBackgroundMode()Hämtar eller anger bakgrundsläget.
setBackgroundMode(int value)Hämtar eller anger bakgrundsläget.
endRecording()Avslutar inspelningen.
fromEmfImage(EmfImage emfImage)Hämtar en instans av EmfRecorderGraphics2D som innehåller alla poster från Emf‑bilden.

Example: This example shows how to create a EMF image and draw some geometric shapes on it using EmfRecorderGraphics2D.

String dir = "c:\\temp\\";

// Bildens storlek i pixlar
int deviceWidth = 600;
int deviceHeight = 400;

// Bildens storlek i millimeter
int deviceWidthMm = (int) (deviceWidth / 100f);
int deviceHeightMm = (int) (deviceHeight / 100f);

com.aspose.imaging.Rectangle frame = new com.aspose.imaging.Rectangle(0, 0, deviceWidth, deviceHeight);

// Skapa en EMF‑bild.
com.aspose.imaging.fileformats.emf.graphics.EmfRecorderGraphics2D graphics =
        new com.aspose.imaging.fileformats.emf.graphics.EmfRecorderGraphics2D(
                frame,
                new com.aspose.imaging.Size(deviceWidth, deviceHeight),
                new com.aspose.imaging.Size(deviceWidthMm, deviceHeightMm));

// Rita en svart rektangel längs bildens kanter med en 1‑pixel bred svart penna.
graphics.drawRectangle(new com.aspose.imaging.Pen(com.aspose.imaging.Color.getBlack(), 1), 0, 0, deviceWidth, deviceHeight);

// Fyll en rektangel med färgen white‑smoke.
graphics.fillRectangle(
        new com.aspose.imaging.brushes.SolidBrush(com.aspose.imaging.Color.getWhiteSmoke()),
        new com.aspose.imaging.Rectangle(10, 10, 580, 380));

// Rita två diagonala linjer med en 1‑pixel bred darkgreen‑penna.
graphics.drawLine(new com.aspose.imaging.Pen(com.aspose.imaging.Color.getDarkGreen(), 1), 0, 0, deviceWidth, deviceHeight);
graphics.drawLine(new com.aspose.imaging.Pen(com.aspose.imaging.Color.getDarkGreen(), 1), 0, deviceHeight, deviceWidth, 0);

// Rita en båge inom rektangeln {0, 0, 200, 200} med en 2‑pixel bred blå penna.
graphics.drawArc(new com.aspose.imaging.Pen(com.aspose.imaging.Color.getBlue(), 2), new com.aspose.imaging.Rectangle(0, 0, 200, 200), 90, 270);

// Fyll en båge
graphics.fillPie(
        new com.aspose.imaging.brushes.SolidBrush(com.aspose.imaging.Color.getLightSkyBlue()),
        new com.aspose.imaging.Rectangle(0, 0, 150, 150), 90, 270);

// Rita en kubisk Bézier med en 2‑pixel bred röd penna.
graphics.drawCubicBezier(new com.aspose.imaging.Pen(com.aspose.imaging.Color.getRed(), 2),
        new com.aspose.imaging.Point(0, 0),
        new com.aspose.imaging.Point(200, 133),
        new com.aspose.imaging.Point(400, 166),
        new com.aspose.imaging.Point(600, 400));

// Rita en rasterbild av angiven storlek på den angivna platsen.
// Bilden skalas för att passa den önskade rektangeln.
com.aspose.imaging.RasterImage imageToDraw = (com.aspose.imaging.RasterImage) com.aspose.imaging.Image.load(dir + "sample.bmp");
try {
    graphics.drawImage(imageToDraw,
            new com.aspose.imaging.Rectangle(400, 200, 100, 50),
            new com.aspose.imaging.Rectangle(0, 0, deviceWidth, deviceHeight),
            com.aspose.imaging.GraphicsUnit.Pixel);
} finally {
    imageToDraw.dispose();
}

// Rita en textsträng
graphics.drawString("Hello World!",
        new com.aspose.imaging.Font("Arial", 48, com.aspose.imaging.FontStyle.Regular),
        com.aspose.imaging.Color.getDarkRed(), 200, 300);

// Skapa en bana för att fylla
com.aspose.imaging.Figure figureToFill = new com.aspose.imaging.Figure();
figureToFill.setClosed(true);

com.aspose.imaging.GraphicsPath pathToFill = new com.aspose.imaging.GraphicsPath();
pathToFill.addFigure(figureToFill);

figureToFill.addShapes(new com.aspose.imaging.Shape[]
        {
                new com.aspose.imaging.shapes.ArcShape(new com.aspose.imaging.RectangleF(400, 0, 200, 100), 45, 300),
                new com.aspose.imaging.shapes.BezierShape(
                        new com.aspose.imaging.PointF[]
                                {
                                        new com.aspose.imaging.PointF(300, 200),
                                        new com.aspose.imaging.PointF(400, 200),
                                        new com.aspose.imaging.PointF(500, 100),
                                        new com.aspose.imaging.PointF(600, 200),
                                }),
                new com.aspose.imaging.shapes.PolygonShape(
                        new com.aspose.imaging.PointF[]
                                {
                                        new com.aspose.imaging.PointF(300, 100),
                                }),
                new com.aspose.imaging.shapes.RectangleShape(new com.aspose.imaging.RectangleF(0, 100, 200, 200)),
        });

// Fyll banan med en gul pensel och en grön penna för att rita konturen
graphics.fillPath(
        new com.aspose.imaging.Pen(com.aspose.imaging.Color.getGreen(), 2),
        new com.aspose.imaging.brushes.SolidBrush(com.aspose.imaging.Color.getYellow()), pathToFill);

// Skapa en bana för att rita
com.aspose.imaging.GraphicsPath pathToDraw = new com.aspose.imaging.GraphicsPath();
com.aspose.imaging.Figure figureToDraw = new com.aspose.imaging.Figure();
pathToDraw.addFigure(figureToDraw);

figureToDraw.addShapes(new com.aspose.imaging.Shape[]
        {
                new com.aspose.imaging.shapes.ArcShape(new com.aspose.imaging.RectangleF(200, 200, 200, 200), 0, 360),
        });

// Rita banan med en 5‑pixel bred orange penna.
graphics.drawPath(new com.aspose.imaging.Pen(com.aspose.imaging.Color.getOrange(), 5), pathToDraw);

// För att rasterisera SVG måste vi specificera rasteriseringsalternativ.
com.aspose.imaging.imageoptions.SvgRasterizationOptions rasterizationOptions = new com.aspose.imaging.imageoptions.SvgRasterizationOptions();
com.aspose.imaging.imageoptions.PngOptions saveOptions = new com.aspose.imaging.imageoptions.PngOptions();
saveOptions.setVectorRasterizationOptions(rasterizationOptions);

// Hämta den slutgiltiga WMF‑bilden som inkluderar alla ritkommandon
com.aspose.imaging.fileformats.emf.EmfImage emfImage = graphics.endRecording();
try {
    emfImage.save(dir + "test.output.emf");
} finally {
    emfImage.dispose();
}

EmfRecorderGraphics2D(Rectangle frame, Size deviceSize, Size deviceSizeMm)

public EmfRecorderGraphics2D(Rectangle frame, Size deviceSize, Size deviceSizeMm)

Initierar en ny instans av klassen EmfRecorderGraphics2D.

Parameters:

ParameterTypBeskrivning
frameRectangleRamen.
deviceSizeSizeEnhetens storlek.
deviceSizeMmSizeEnhetens storlek i mm.

getBackgroundMode()

public int getBackgroundMode()

Hämtar eller anger bakgrundsläget.

Returns: int - Bakgrundsläget.

setBackgroundMode(int value)

public void setBackgroundMode(int value)

Hämtar eller anger bakgrundsläget.

Parameters:

ParameterTypBeskrivning
värdeintBakgrundsläget.

endRecording()

public EmfImage endRecording()

Avslutar inspelningen.

Returns: EmfImage - The result image.

fromEmfImage(EmfImage emfImage)

public static EmfRecorderGraphics2D fromEmfImage(EmfImage emfImage)

Hämtar en instans av EmfRecorderGraphics2D som innehåller alla poster från Emf‑bilden.

Parameters:

ParameterTypBeskrivning
emfImageEmfImageEmf‑bilden att läsa poster från.

Returns: EmfRecorderGraphics2D - An instance of the EmfRecorderGraphics2D

Example: This example shows how to load a EMF image from a file and draw a text string over it.

String dir = "c:\\temp\\";

com.aspose.imaging.fileformats.emf.EmfImage emfImage = (com.aspose.imaging.fileformats.emf.EmfImage) com.aspose.imaging.Image.load(dir + "test.emf");
try {
    com.aspose.imaging.fileformats.emf.graphics.EmfRecorderGraphics2D graphics =
            com.aspose.imaging.fileformats.emf.graphics.EmfRecorderGraphics2D.fromEmfImage(emfImage);

    // Först, hämta bildens storlek
    int width = emfImage.getWidth();
    int height = emfImage.getHeight();

    // För det andra, beräkna en transformation för att placera en textsträng längs bildens huvuddiagonal -
    // från övre vänstra till nedre högra hörnet.
    float emFontSize = 96f;
    float d = (float) java.lang.Math.sqrt(width * width + height * height);
    float scaleFactor = d / (emFontSize * 5f);

    float tan = ((float) height) / width;
    double radians = java.lang.Math.atan(tan);
    double degrees = (180 * radians) / java.lang.Math.PI;

    com.aspose.imaging.Matrix transform = new com.aspose.imaging.Matrix();
    transform.rotate((float) degrees);
    transform.scale(scaleFactor, scaleFactor);

    // Sedan, ställ in transformationen.
    graphics.setTransform(transform);

    // Slutligen, placera ett vattenmärke (textsträng i rosa färg) längs huvuddiagonalen.
    graphics.drawString("WATERMARK", new com.aspose.imaging.Font(
                    "Courier New", emFontSize),
            com.aspose.imaging.Color.getLightPink(), 0, 0/*, (float)degrees*/);

    // Spara bilden med vattenmärke till en annan EMF-fil.
    com.aspose.imaging.fileformats.emf.EmfImage scaledEmfImage = graphics.endRecording();
    try {
        scaledEmfImage.save(dir + "test.scaled.emf");
    } finally {
        scaledEmfImage.dispose();
    }
} finally {
    emfImage.dispose();
}
MetafileRecorderGraphics2D