matplotlib - 在 Qt 表单上编写 TeX [英] matplotlib - write TeX on Qt form

问题描述

我想将一些TeX文本添加到我的Qt表单中，例如标签-仅文本，没有图形，没有线条，没有边框，仅是TeX.我想过这样的事情:将TeX渲染为位图，然后将该位图放置在窗体上，例如进入QLabel.或者甚至更好 - 使用一些后端，将其添加到表单中并使用tex_label.print_tex().似乎 matplotplot 有 TeX 解析器，但我不知道如何使用它们...

I'd like to add some TeX text to my Qt form, like label - just text, no graph, no lines, no borders, just TeX. I thought something like this: render TeX to bitmap and then place that bitmap on form, e.g. into QLabel. Or even better - use some backend, add it to form and use something tex_label.print_tex(<tex code>). Seems matplotplot has TeX parsers, but I can't figure out how to use them...

谢谢.

推荐答案

作为一个变体:

    from matplotlib.figure import Figure
    from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg

    # Get window background color
    bg = self.palette().window().color()
    cl = (bg.redF(), bg.greenF(), bg.blueF())

    # Create figure, using window bg color
    self.fig = Figure(edgecolor=cl, facecolor=cl)

    # Add FigureCanvasQTAgg widget to form
    self.canvas = FigureCanvasQTAgg(self.fig)        
    self.tex_label_placeholder.layout().addWidget(self.canvas)

    # Clear figure
    self.fig.clear()

    # Set figure title
    self.fig.suptitle('$TeX$',
                      x=0.0, y=0.5, 
                      horizontalalignment='left',
                      verticalalignment='center')
    self.canvas.draw()

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