Commit cf56e1c1 authored by Paul Asmuth's avatar Paul Asmuth
Browse files

linechart: invert y axis

parent 433b8dfc

charts/linechart.cc

+1 −1
Original line number Diff line number Diff line
@@ -71,7 +71,7 @@ ReturnCode drawSeries( 
    auto x = series.xs[i];

    auto y = series.ys[i];

    auto sx = clip.x + domain_translate(domain_x, x) * clip.w;

    auto sy = clip.y + domain_translate(domain_y, y) * clip.h;

    auto sy = clip.y + (1.0 - domain_translate(domain_y, y)) * clip.h;



    if (i == 0) {

      path.moveTo(sx, sy);

charts/plot_axis.cc

+2 −2
Original line number Diff line number Diff line
@@ -94,7 +94,7 @@ static Status renderAxisVertical( 


  /* draw ticks */

  for (const auto& tick : axis_config.ticks) {

    auto y = y0 + (y1 - y0) * tick;

    auto y = y0 + (y1 - y0) * (1.0 - tick);

    StrokeStyle style;

    strokeLine(

        target,
@@ -109,7 +109,7 @@ static Status renderAxisVertical( 
  auto label_padding = from_rem(*target, axis_config.label_padding_rem);

  for (const auto& label : axis_config.labels) {

    auto [ tick, label_text ] = label;

    auto sy = y0 + (y1 - y0) * tick;

    auto sy = y0 + (y1 - y0) * (1.0 - tick);

    auto sx = x + label_padding * label_placement;



    TextStyle style;

tests/linechart/test_linechart_multiple_series.plot

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+18 −0
Original line number Diff line number Diff line 
linechart {

  axis-top: manual;

  axis-right: manual;

  axis-bottom: manual;

  axis-left: manual;



  series {

    xs: 10   20   30   40   50   60    70   80  90  100;

    ys: 1.23 4.32 3.23 6.43 3.45 11.32 8.14 5.2 3.5 2.2;

    colour: #06c;

  }



  series {

    xs: 10   15   30   50   70   80    90   90 95  100;

    ys: 1.23 4.32 3.23 6.43 5.45 12.32 8.14 5.2 3.5 2.2;

    colour: #6c0;

  }

}

tests/linechart/test_linechart_multiple_series.png

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