Qt SVG Editor: How to resize svg image and save it back in SVG form as a resized image.!

prg1234

I can load svg file and render it on QGraphicsView..but how to resize image and store it back in svg..!

I tried following code for saving but it saves the contents as pixmap..!

@QSvgGenerator generator;
generator.setFileName(path);
generator.setSize(QSize(200, 200));

QPainter painter(&generator);
scene->render(&painter, QRectF(0, 0, 200, 200));

@

But its not working.

prg1234

Well, Im not talking about zooming image here..Its Resizing to be precise..!

Jake007

Hi!

You can not scale or rescale svg image in pixels. Svg image is a set of vectors, which calculates on load for given resolution. So in any resolution that you will save, it will be completely the same.

Hope it makes any sense ;)

Regrads,
Jake

prg1234

ok..i got that..!

But even if i save the contents of graphicsvies..they got stored as pixmap instead svg..!

with the above code..!

I want to save the contents as svg only...!

Jake007

Can you edit svg image in your program?
If you can not, there is no need to re-save it.

Otherwise, if you took a look at Svg Generator Example, this is how you save it:
@ void Window::saveSvg()
{
QString newPath = QFileDialog::getSaveFileName(this, tr("Save SVG"),
path, tr("SVG files (*.svg)"));

 if (newPath.isEmpty())
     return;

 path = newPath;

 QSvgGenerator generator;
 generator.setFileName(path);
 generator.setSize(QSize(200, 200));
 generator.setViewBox(QRect(0, 0, 200, 200));
 generator.setTitle(tr("SVG Generator Example Drawing"));
 generator.setDescription(tr("An SVG drawing created by the SVG Generator "
                             "Example provided with Qt."));
 QPainter painter;
 painter.begin(&generator);
 displayWidget->paint(painter);
 painter.end();

}@

prg1234

I cant exactly say I can edit my image..but i was trying to display multiple images on the same view..and i succeeded too..!

But I couldn't save this scene as a one svg image .
Its getting saved in svg format with my above code but the contents of it are displayed as pixmap only.

prg1234

@void MainWindow::on_actionSave_As_triggered()
{

QString newPath = QFileDialog::getSaveFileName(this, tr("Save SVG"),
    path, tr("SVG files (*.svg)"));

if (newPath.isEmpty())
    return;

path = newPath;

QSvgGenerator generator;
generator.setFileName(path);
generator.setSize(QSize(200, 200));

QPainter painter(&generator);
scene->render(&painter, QRectF(0, 0, 200, 200));

}@

I used this code..!

And your previous code contains seperate class to be constructed and function paint..!

Well i dont want that..

M wondering what to write betn..

@ QPainter painter;
painter.begin(&generator);
,,,,,...??
painter.end();@

for fun i treied scene.render(painter);

and it worked but again contents were pixmap..:(

Jake007

Have you ever took a look at SVG file how it's written?
It's an xml file.
So one solution would be: read image by image as xml and save required data into a string.
When you are finished gathering data, you only write generated string into an xml file.

And a quick tutorial on svg "here":http://www.w3schools.com/svg/default.asp

Regards,
Jake