Commit 0cad21f3 authored by Mark Olesen's avatar Mark Olesen

ENH: improve handling of font sizes for scalarBar

parent 93a1853d
......@@ -57,8 +57,8 @@ void Foam::functionObjects::runTimePostPro::scalarBar::clear()
position_ = {0.8, 0.1};
size_ = {0.1, 0.5};
title_ = "";
fontSize_ = 12;
titleSize_ = 0; // 0 == Auto-sizing (factor 3)
fontSize_ = 0; // 0 == Auto-sizing (defaultFontSize)
titleSize_ = 0; // 0 == Auto-sizing (defaultTitleSizeFactor)
nLabels_ = 5;
labelFormat_ = "%f";
}
......@@ -121,6 +121,8 @@ bool Foam::functionObjects::runTimePostPro::scalarBar::add
return false;
}
const label fontSizeValue = (fontSize_ ? fontSize_ : defaultFontSize);
auto sbar = vtkSmartPointer<vtkScalarBarActor>::New();
sbar->SetLookupTable(lut);
sbar->SetNumberOfLabels(nLabels_);
......@@ -139,6 +141,8 @@ bool Foam::functionObjects::runTimePostPro::scalarBar::add
if (titleHack_)
{
// Place the scalar bar title ourselves
sbar->SetUnconstrainedFontSize(true);
titleActor = vtkSmartPointer<vtkTextActor>::New();
titleActor->SetInput(title_.c_str());
......@@ -148,6 +152,7 @@ bool Foam::functionObjects::runTimePostPro::scalarBar::add
else
{
// Use the standard scalar bar title
sbar->SetUnconstrainedFontSize(fontSize_ != 0);
sbar->SetTitle(title_.c_str());
titleProp = sbar->GetTitleTextProperty();
}
......@@ -163,11 +168,11 @@ bool Foam::functionObjects::runTimePostPro::scalarBar::add
}
else
{
// Auto = Factor 3 of fontSize
titleProp->SetFontSize(3*fontSize_);
// Auto
titleProp->SetFontSize(defaultTitleSizeFactor*fontSizeValue);
// Or this??
// if (!titleHack_) titleProp->SetFontSize(fontSize_);
// if (!titleHack_) titleProp->SetFontSize(fontSizeValue);
}
titleProp->SetJustificationToCentered();
......@@ -178,14 +183,16 @@ bool Foam::functionObjects::runTimePostPro::scalarBar::add
titleProp->SetColor(textColour[0], textColour[1], textColour[2]);
auto labProp = sbar->GetLabelTextProperty();
labProp->SetColor(textColour[0], textColour[1], textColour[2]);
labProp->SetFontSize(fontSize_);
if (titleHack_ || fontSize_)
{
labProp->SetFontSize(fontSizeValue);
}
labProp->ShadowOff();
labProp->BoldOff();
labProp->BoldOff(); // or: labProp->SetBold(bold_);
labProp->ItalicOff();
// Positioning
......
......@@ -35,7 +35,7 @@ Description
position | Viewport position (x y) of scalar bar | yes |
vertical | Vertical scalar bar | no | true
size | Viewport size (x y) of scalar bar | no | auto
fontSize | Label size | no | 12
fontSize | Label size | no | 0 == auto
titleSize | Title font size | no | 0 == auto
labelFormat | Label format string (eg, "%f") | no | "%f"
numberOfLabels | Total number of labels | no | 5
......@@ -45,6 +45,19 @@ Description
titleHack | Alternative placement strategy | no | yes
\endtable
Note
The \c titleHack option is a leftover from much older VTK versions
that had poor handling of the scalar bar text. When this is active,
the normal scalar bar title is suppressed and placed manually
(with a predefined ratio of the base font-size).
When the titleHack is off, the label and title font sizes are
automatically defined by the scalar bar size but can be overridden with
provided values.
The effect of fontSize and titleSize is unfortunately not consistent
between titleHack on/off.
SourceFiles
scalarBar.C
......@@ -77,6 +90,12 @@ namespace runTimePostPro
class scalarBar
{
//- The default font size when titleHack is on
static constexpr const label defaultFontSize = 18;
//- The auto title/label ratio when titleHack is on
static constexpr const float defaultTitleSizeFactor = 1.5;
bool visible_;
bool vertical_;
bool bold_;
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment