[PATCH] Heatmap: Draw lines between data points rather than big dots

[Tomaz Canabrava]

Ack


On Sun, Oct 16, 2016 at 10:24 AM, Rick Walsh <rickmwalsh at gmail.com> wrote:

> By drawing oversize dots for each data point, dots were overlapping such
> that
> the change in tissue presssure wasn't displayed at the right time -
> typically
> out by 1-2 minutes, depending on dive duration.
>
> Drawing a line between discrete points, the data points don't overlap and
> change in tissue pressure is displayed at the right time.
>
> Signed-off-by: Rick Walsh <rickmwalsh at gmail.com>
> ---
>  profile-widget/diveprofileitem.cpp | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/profile-widget/diveprofileitem.cpp b/profile-widget/
> diveprofileitem.cpp
> index b44586f..8961741 100644
> --- a/profile-widget/diveprofileitem.cpp
> +++ b/profile-widget/diveprofileitem.cpp
> @@ -415,15 +415,15 @@ void DivePercentageItem::paint(QPainter *painter,
> const QStyleOptionGraphicsItem
>                 return;
>         painter->save();
>         QPen mypen;
> +       mypen.setWidthF(vAxis->posAtValue(0) - vAxis->posAtValue(4));
>         mypen.setCosmetic(false);
> -       mypen.setWidth(5);
>         QPolygonF poly = polygon();
> -       for (int i = 0, modelDataCount = dataModel->rowCount(); i <
> modelDataCount; i++) {
> +       for (int i = 1, modelDataCount = dataModel->rowCount(); i <
> modelDataCount; i++) {
>                 if (i < poly.count()) {
>                         double value = dataModel->index(i,
> vDataColumn).data().toDouble();
>                         mypen.setBrush(QBrush(ColorScale(value)));
>                         painter->setPen(mypen);
> -                       painter->drawPoint(poly[i]);
> +                       painter->drawLine(poly[i - 1], poly[i]);
>                 }
>         }
>         painter->restore();
> --
> 2.7.4
>
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