本文整理汇总了C++中CRGBA::setAlpha方法的典型用法代码示例。如果您正苦于以下问题：C++ CRGBA::setAlpha方法的具体用法？C++ CRGBA::setAlpha怎么用？C++ CRGBA::setAlpha使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CRGBA的用法示例。
在下文中一共展示了CRGBA::setAlpha方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
void
CGnuPlotStyleRadar::
getPointsColor(CGnuPlotRadarStyleValue *value, int pi, CRGBA &lc, CRGBA &fc)
{
lc = CGnuPlotStyleInst->indexColor(value->palette(), pi);
fc = lc;
fc.setAlpha(0.5);
}示例2: CRGBA
CRGBA
CSVGStroke::
getAlphaColor() const
{
CRGBA rgba;
if (color_.getValid()) {
rgba = color_.getValue();
if (getOpacityValid())
rgba.setAlpha(getOpacity());
}
else
rgba = CRGBA(0,0,0,0);
return rgba;
}示例3: if
void
CGnuPlotStyleRadar::
draw2D(CGnuPlotPlot *plot, CGnuPlotRenderer *renderer)
{
CGnuPlotRadarStyleValue *value =
CGnuPlotStyleValueMgrInst->getValue<CGnuPlotRadarStyleValue>(plot);
if (! value) {
value = plot->app()->device()->createRadarStyleValue(plot);
CGnuPlotStyleValueMgrInst->setValue<CGnuPlotRadarStyleValue>(plot, value);
}
//---
const CBBox2D &bbox = plot->bbox2D();
CPoint2D pc = bbox.getCenter();
double r = bbox.getWidth()/2;
int np = -1;
for (const auto &point : plot->getPoints2D()) {
np = std::min(np < 0 ? INT_MAX : np, point.getNumValues());
}
if (np < 3)
return;
//double pw = renderer->pixelWidthToWindowWidth (1);
//double ph = renderer->pixelHeightToWindowHeight(1);
CGnuPlotGroup *group = plot->group();
const CGnuPlotKeyData &keyData = plot->keyData();
const CGnuPlotAxisData &xaxis = group->xaxis(1);
const CGnuPlotKey::Columns &columns = keyData.columns();
double da = 360/np;
std::vector<CPoint2D> points = radarPoints(value->angleStart(), pc, r, np);
double v = getRange(plot);
//---
// draw border
renderer->drawPolygon(points, value->borderColor(), value->borderWidth(), value->borderDash());
//---
// draw column labels (how determine indices)
{
double a = value->angleStart();
for (int i = 1; i <= np && i < int(columns.size()); ++i) {
CPoint2D p = radarPoint(pc, r, a);
CHAlignType halign = CHALIGN_TYPE_CENTER;
CVAlignType valign = CVALIGN_TYPE_CENTER;
double dx = 0;
double dy = 0;
if (p.x < pc.x - v/2) {
halign = CHALIGN_TYPE_RIGHT;
dx = -8;
}
else if (p.x > pc.x + v/2) {
halign = CHALIGN_TYPE_LEFT;
dx = 8;
}
if (p.y < pc.y - v/2) {
valign = CVALIGN_TYPE_TOP;
dy = 8;
}
else if (p.y > pc.y + v/2) {
valign = CVALIGN_TYPE_BOTTOM;
dy = -8;
}
CRGBA tc = CRGBA(0,0,0);
renderer->drawHAlignedText(p, HAlignPos(halign, dx), VAlignPos(valign, dy), columns[i], tc),
a -= da;
}
}
//---
// draw axis if needed
if (xaxis.isDisplayed()) {
CRGBA ac = value->axisColor();
ac.setAlpha(value->axisAlpha());
double dr = 0.1;
//.........这里部分代码省略.........