Get the interactive line values

[flvribeiro]

Hi,

How to get the p0/p1 values from interactive line after move it on chart?

set:

self.l5 = fplt.add_line((_d2t.iloc[-1], _d2p.iloc[-1]), (_d2t.iloc[-5], _d2p.iloc[-5]),
                                    color='#ffff00', interactive=True, ax=self.ax_c)

get:

_d = self.l5.vb.datasrc.df
        print(_d.tail())

seems that the update function doesn`t changes the item datasource, am I right?

class FinPolyLine(pg.PolyLineROI):
    ...
    def update_text(self, text):
            h0 = text.segment.handles[0]['item']
            h1 = text.segment.handles[1]['item']
            diff = h1.pos() - h0.pos()
            if diff.y() < 0:
                text.setAnchor((0.5,0))
            else:
                text.setAnchor((0.5,1))
            text.setPos(h1.pos())
            text.setText(_draw_line_segment_text(self, text.segment, h0.pos(), h1.pos()))

[highfestiva]

That's correct, this is part of pyqtgraph internals. Something like this might get you on the right track:

for handle in line.handles:
    print(handle['pos'])

[flvribeiro]

Got it...

get:
print(f' {self.l5.handles[0]["pos"].y()} = p0') print(f' {self.l5.handles[1]["pos"].y()} = p1')

tks!!