// pattern2 : bling each led in random frequency and random duration
void pattern2() {
gMSec = 99;
float dOffsetRed = offsetForRotation();
volatile long dRedEndAt = 0;
float radianRed = 0.0;
float dOffsetGreen = offsetForRotation();
long dGreenEndAt = 0;
float radianGreen = 0.0;
float dOffsetBlue = offsetForRotation();
long dBlueEndAt = 0;
float radianBlue = 0.0;
float dMultiplyRed = 0.0;
float dMultiplyGreen = 0.0;
float dMultiplyBlue = 0.0;
while (gMSec < 30000) { // 1 min
if (gMSec > dRedEndAt) {
dMultiplyRed = multiplyForRotation();
dRedEndAt = endAt();
}
if (gMSec > dGreenEndAt) {
dMultiplyGreen = multiplyForRotation();
dGreenEndAt = endAt();
}
if (gMSec > dBlueEndAt) {
dMultiplyBlue = multiplyForRotation();
dBlueEndAt = endAt();
}
putRed( calcSin(dOffsetRed, dMultiplyRed, radianRed) );
putGreen( calcSin(dOffsetGreen, dMultiplyGreen, radianGreen));
putBlue( calcSin(dOffsetBlue, dMultiplyBlue, radianBlue) );
radianRed += 0.03;
radianGreen += 0.03;
radianBlue += 0.03;
wait_ms(10); // pwm needs delay
}
}
double QArrow::getAngle()
{
return _arrowAngle;
}
/**
* Overloaded paint-method from QGraphicsItem.
* Basically it draws a line with an arrowhead consisting of two short lines at the end
*/
void QArrow::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
Q_UNUSED (option)
Q_UNUSED (widget)
double ddeltaX = calcCos(_arrowAngle) * _arrowLength;
double ddeltaY = calcSin(_arrowAngle) * _arrowLength;
double theta = atan(ddeltaY / ddeltaX);
double theta2 = (ddeltaX < 0.0) ? (theta + PI) : theta;
int lengthdeltaX = -static_cast<int>(cos(theta2) * _headLength);
int lengthdeltaY = -static_cast<int>(sin(theta2) * _headLength);
int widthdeltaX = static_cast<int>(sin(theta2) * _headWidth);
int widthdeltaY = static_cast<int>(cos(theta2) * _headWidth);
int deltaX = static_cast<int>(ddeltaX);
int deltaY = static_cast<int>(ddeltaY);
painter->setPen(_arrowPen);
painter->drawLine(0, 0, deltaX, deltaY);
painter->drawLine(deltaX,
deltaY,
deltaX + lengthdeltaX + widthdeltaX,
deltaY + lengthdeltaY - widthdeltaY);
painter->drawLine(deltaX,