Remove padding from diagram

[Ronald Naber]

Hi,

How could I remove the padding in the picture generated by blockdiag's SVG function? I have been going through the source code but cannot follow yet how the program flow is exactly. It probably has to do with SVG's viewbox command, but I don't know how to change the viewbox; I can only turn it off.

The reason I want to remove the padding is that I integrate the picture into a PyQt application, which already has its own padding. My code for this is below. I tried adding options to the drawer initiation command, but it had no effect so far except for noviewbox.

Cheers,
Ronald

        hbox = QtGui.QHBoxLayout()

        tree = parser.parse_string(curr_diagram)

        diagram = builder.ScreenNodeBuilder.build(tree)

        draw = drawer.DiagramDraw('SVG', diagram, filename="")

        draw.draw()

        svg_string = draw.save()

        svg_widget = QtSvg.QSvgWidget()

        svg_widget.load(QtCore.QString(svg_string).toLocal8Bit())

 

        hbox.addWidget(svg_widget)

        hbox.addStretch(1)            

        vbox.addLayout(hbox)

[Ronald Naber]

For future reference: with the 'node_width', 'node_height', 'span_width' and 'span_height' settings in the diagram definition you can change the padding around the diagram, but it changes the diagram as well.

On Saturday, 25 July 2015 08:53:16 UTC+2, Ronald Naber wrote:

Hi,

How could I remove the padding in the picture generated by blockdiag's SVG function? I have been going through the source code but cannot follow yet how the program flow is exactly. It probably has to do with SVG's viewbox command, but I don't know how to change the viewbox; I can only turn it off.

The reason I want to remove the padding is that I integrate the picture into a PyQt application, which already has its own padding. My code for this is below. I tried adding options to the drawer initiation command, but it had no effect so far except for noviewbox.

Cheers,
Ronald

...

[Komiya Takeshi]

Hi,

Sorry, there is no way to change padding arround diagram.
For now, the padding is determined by span_width and span_height.


Thanks,

Takeshi KOMIYA

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