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esp32-nmea2000-obp60
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Fix getMin/Max + wndCenter rounding;

This commit is contained in:
Ulrich Meine 2025-06-08 13:45:20 +02:00
parent 62aef176d3
commit aa70c34a96
1 changed files with 141 additions and 64 deletions
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205
lib/obp60task/PageWindPlot.cpp
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@ -6,8 +6,8 @@
#include <vector>
class CircularBuffer {
// provides a circular buffer to store wind history values
class wndHistory {
// provides a FiFo circular buffer to store wind history values
private:
int SIZE;
std::vector<int> buffer;
@ -30,6 +30,9 @@ public:
void add(int value)
// Add a new value
{
if (value > 180) {
value -= 360; // Normalize value to -180..180 to make min/max calculations working
}
buffer[head] = value;
head = (head + 1) % SIZE;
if (count < SIZE) {
@ -40,7 +43,7 @@ public:
}
int get(int index) const
// Get value by index (0 = oldest, count-1 = newest)
// Get value by index in [-180..180 deg] format (0 = oldest, count-1 = newest)
{
int realIndex;
@ -49,14 +52,77 @@ public:
}
realIndex = (first + index) % SIZE;
return buffer[realIndex];
// }
}
int size() const
int get(int index, int deg) const
// Get value by index in [-180..180 deg] or [0..360 deg] format (0 = oldest, count-1 = newest)
{
switch (deg) {
case 180:
// Return value in [-180..180 deg] format
return get(index);
case 360: {
// Return value in [0..360 deg] format
int value = get(index);
if (value < 0) {
value += 360;
};
return value;
}
default:
// Return value in [-180..180 deg] format
return -1;
}
}
int getSize() const
// Get number of valid elements
{
return count;
}
int getMin() const
// Get minimum value in the buffer
{
if (count == 0) {
return -1; // Buffer is empty
} else if (first + count <= SIZE) {
// No wrap-around
return *std::min_element(buffer.begin() + first, buffer.begin() + first + count);
} else {
// Wrap-around: check [first, end) and [begin, (first+count)%SIZE)
int min1 = *std::min_element(buffer.begin() + first, buffer.end());
int min2 = *std::min_element(buffer.begin(), buffer.begin() + ((first + count) % SIZE));
return std::min(min1, min2);
}
}
int getMax() const
// Get maximum value in the buffer
{
if (count == 0) {
return -1; // Buffer is empty
} else if (first + count <= SIZE) {
// No wrap-around
return *std::max_element(buffer.begin() + first, buffer.begin() + first + count);
} else {
// Wrap-around: check [first, end) and [begin, (first+count)%SIZE)
int max1 = *std::max_element(buffer.begin() + first, buffer.end());
int max2 = *std::max_element(buffer.begin(), buffer.begin() + ((first + count) % SIZE));
return std::max(max1, max2);
}
}
int getMid() const
// Get middle value in the buffer
{
if (count == 0) {
return -1; // Buffer is empty
}
return (getMin() + getMax()) / 2;
}
void mvStart(int start)
// Move the start index of buffer forward by <start> positions
{
@ -105,7 +171,8 @@ public:
int width = getdisplay().width(); // Get screen width
int height = getdisplay().height(); // Get screen height
int cHeight = height - 98; // height of chart area
// int cHeight = height - 98; // height of chart area
int cHeight = 80; // height of chart area
int xCenter = width / 2; // Center of screen in x direction
static const int yOffset = 76; // Offset for y coordinates of chart area
static const float radToDeg = 180.0 / M_PI; // Conversion factor from radians to degrees
@ -115,6 +182,7 @@ public:
static int wndRight; // chart wind right value position
static int chrtRng; // Range of wind values from mid wind value to min/max wind value in degrees
int diffRng; // Difference between mid and current wind value
static bool plotShift = false; // Flag to indicate if chartplot data have been shifted
int x, y; // x and y coordinates for drawing
static int lastX, lastY; // Last x and y coordinates for drawing
@ -123,8 +191,8 @@ public:
int count; // index for next wind value in buffer
// Circular buffer to store wind values
static CircularBuffer windValues;
if (windValues.size() == 0) {
static wndHistory windValues;
if (windValues.getSize() == 0) {
if (!windValues.begin(cHeight)) { // buffer holds as many values as the height of the chart area
// if (!windValues.begin(60)) { // buffer holds as many values as the height of the chart area
logger->logDebug(GwLog::ERROR, "Failed to initialize wind values buffer");
@ -174,55 +242,47 @@ public:
dataValid[i] = bvalue->valid;
dataSValue[i] = formatValue(bvalue, *commonData).svalue; // Formatted value as string including unit conversion and switching decimal places
dataUnit[i] = formatValue(bvalue, *commonData).unit;
// dataFormat[i] = bvalue->getFormat(); // Unit of value
if (dataValid[i]) {
dataSValueOld[i] = dataSValue[i]; // Save old value
dataUnitOld[i] = dataUnit[i]; // Save old unit
}
}
// Store TWD wind value in buffer
windValues.add(int((dataValue[0] * radToDeg) + 0.5)); // Store TWD value (degree) in buffer (rounded to integer)
count = windValues.size(); // Get number of valid elements in buffer; maximum is cHeight
// specify and check chart border values
if (wndCenter == -400) {
wndCenter = windValues.get(0);
chrtRng = 20;
wndLeft = wndCenter - chrtRng;
if (wndLeft < 0)
wndLeft += 360;
wndRight = wndCenter + chrtRng;
if (wndRight >= 360)
wndRight -= 360;
LOG_DEBUG(GwLog::LOG, "PageWindPlot: wndCenter + chrtRng initialized");
}
diffRng = abs(windValues.get(count - 1) - wndCenter);
if (diffRng > chrtRng) {
chrtRng = int(ceil(diffRng / 10.0) * 10); // Round to next 10 degree value
wndLeft = wndCenter - chrtRng;
if (wndLeft < 0)
wndLeft += 360;
wndRight = wndCenter + chrtRng;
if (wndRight >= 360)
wndRight -= 360;
}
LOG_DEBUG(GwLog::LOG, "PageWindPlot dataValue[0]: %f, windValue: %d, count: %d, Range: %d, ChartRng: %d", float(dataValue[0] * radToDeg), windValues.get(count - 1), count, diffRng, chrtRng);
// was, wenn alle Werte kleiner als current wind range sind?
// passe wndCenter an, wenn chrtRng > std und alle Werte > oder < wndCenter sind
// Optical warning by limit violation (unused)
if (String(flashLED) == "Limit Violation") {
setBlinkingLED(false);
setFlashLED(false);
}
// Logging boat values
if (bvalue == NULL)
return;
// LOG_DEBUG(GwLog::LOG, "PageWindPlot, %s:%f, %s:%f, %s:%f, %s:%f, %s:%f, cnt: %d, wind: %f", dataName[0].c_str(), dataValue[0], name2.c_str(),
// value2, name3.c_str(), value3, name4.c_str(), value4, name5.c_str(), value5, count, windValues.get(count - 1));
// Store TWD wind value in buffer
windValues.add(int((dataValue[0] * radToDeg) + 0.5)); // Store TWD value (degree) in buffer (rounded to integer)
count = windValues.getSize(); // Get number of valid elements in buffer; maximum is cHeight
// initialize chart range values
if (wndCenter == -400) {
wndCenter = windValues.get(0);
wndCenter = int((wndCenter + (wndCenter >= 0 ? 5 : -5)) / 10) * 10; // Set new center value; round to nearest 10 degree value
// wndCenter = int((windValues.get(0) + 5) / 10) * 10; // Round to nearest 10 degree value
diffRng = 30;
chrtRng = 30;
LOG_DEBUG(GwLog::LOG, "PageWindPlot initialized. wndCenter: %d, chrtRng: %d ", wndCenter, chrtRng);
} else {
diffRng = max(abs(((windValues.getMax() - wndCenter + 540) % 360) - 180), abs(((windValues.getMin() - wndCenter + 540) % 360) - 180)); // check necessary range size
if (diffRng > chrtRng) {
chrtRng = int((diffRng + (diffRng >= 0 ? 9 : -1)) / 10) * 10; // Round up to next 10 degree value
// chrtRng = int(ceil(diffRng / 10.0) * 10); // Round to next 10 degree value
} else if (diffRng + 10 < chrtRng) {
chrtRng = max(30, int((diffRng + (diffRng >= 0 ? 9 : -1)) / 10) * 10); // Round up to next 10 degree value
// chrtRng = max(30, int(ceil(diffRng / 10.0) * 10)); // Round to next 10 degree value, but mimimum range is 30 degrees
}
}
wndLeft = wndCenter - chrtRng;
if (wndLeft < -180)
wndLeft += 360;
wndRight = wndCenter + chrtRng;
if (wndRight >= 180)
wndRight -= 360;
LOG_DEBUG(GwLog::LOG, "PageWindPlot dataValue[0]: %f, windValue: %d, count: %d, diffRng: %d, chartRng: %d", float(dataValue[0] * radToDeg), windValues.get(count - 1), count, diffRng, chrtRng);
// Draw page
//***********************************************************
@ -256,43 +316,60 @@ public:
// chart labels
char sWndLbl[4]; // Wind label
getdisplay().setFont(&Ubuntu_Bold10pt7b);
getdisplay().setCursor(xCenter - 68, yOffset - 3);
getdisplay().print(dataName[0]); // Wind name
getdisplay().setCursor(xCenter - 80, yOffset - 3);
getdisplay().print("TWD"); // Wind name
getdisplay().setCursor(xCenter - 16, yOffset - 3);
snprintf(sWndLbl, 4, "%03d", wndCenter);
snprintf(sWndLbl, 4, "%03d", (wndCenter < 0) ? (wndCenter + 360) : wndCenter);
getdisplay().print(sWndLbl); // Wind center value
getdisplay().drawCircle(xCenter + 21, 63, 2, commonData->fgcolor); // <degree> symbol
getdisplay().drawCircle(xCenter + 21, 63, 3, commonData->fgcolor); // <degree> symbol
getdisplay().setCursor(2, yOffset - 3);
snprintf(sWndLbl, 4, "%03d", wndLeft);
snprintf(sWndLbl, 4, "%03d", (wndLeft < 0) ? (wndLeft + 360) : wndLeft);
getdisplay().print(sWndLbl); // Wind left value
getdisplay().drawCircle(39, 63, 2, commonData->fgcolor); // <degree> symbol
getdisplay().drawCircle(39, 63, 3, commonData->fgcolor); // <degree> symbol
getdisplay().setCursor(width - 43, yOffset - 3);
snprintf(sWndLbl, 4, "%03d", wndRight);
snprintf(sWndLbl, 4, "%03d", (wndRight < 0) ? (wndRight + 360) : wndRight);
getdisplay().print(sWndLbl); // Wind right value
getdisplay().drawCircle(width - 6, 63, 2, commonData->fgcolor); // <degree> symbol
getdisplay().drawCircle(width - 6, 63, 3, commonData->fgcolor); // <degree> symbol
// Draw wind values in chart
//***********************************************************
lastX = xCenter + ((windValues.get(0) - wndCenter) * chrtScl);
lastY = yOffset + cHeight; // Reset lastY to bottom of chart
if (dataValid[0] || holdvalues || simulation == true) {
for (int i = 0; i < count; i++) {
chrtVal = windValues.get(i); // Get value from buffer
chrtScl = xCenter / chrtRng; // current scale
x = xCenter + ((chrtVal - wndCenter) * chrtScl); // Scale to chart width
y = yOffset + cHeight - i; // Position in chart area
getdisplay().drawLine(lastX, lastY, x, y, commonData->fgcolor);
getdisplay().drawLine(lastX, lastY - 1, x, y - 1, commonData->fgcolor);
lastX = x;
lastY = y;
// LOG_DEBUG(GwLog::LOG, "PageWindPlot: loop-Counter: %d, X: %d, Y: %d, lastX: %d, lastY: %d", count, x, y, lastX, lastY);
if (i == (cHeight - 1)) { // Reaching chart area top end
windValues.mvStart(40); // virtually delete 40 values from buffer
continue;
lastX = xCenter + ((windValues.get(0) - wndCenter) * chrtScl);
lastY = yOffset + cHeight; // Reset lastY to bottom of chart
for (int i = 0; i < count; i++) {
chrtVal = windValues.get(i); // Get value from buffer
chrtScl = xCenter / chrtRng; // current scale: pixels per degree
x = xCenter + ((chrtVal - wndCenter) * chrtScl); // Scale to chart width
// x = xCenter + ((((chrtVal - wndCenter + 540) % 360) - 180) * chrtScl); // Scale to chart width
y = yOffset + cHeight - i; // Position in chart area
// Draw line with 2 pixels width; make sure vertical line are drawn correctly
getdisplay().drawLine(lastX, lastY, x, y, commonData->fgcolor);
getdisplay().drawLine(lastX, lastY - 1, (x != lastX) ? x : x-1, (x != lastX) ? y - 1 : y, commonData->fgcolor);
lastX = x;
lastY = y;
// LOG_DEBUG(GwLog::LOG, "PageWindPlot: loop-Counter: %d, X: %d, Y: %d, lastX: %d, lastY: %d", count, x, y, lastX, lastY);
LOG_DEBUG(GwLog::LOG, "PageWindPlot Shift: Min: %d, Max: %d, Mid: %d", windValues.getMin(), windValues.getMax(), windValues.getMid());
if (i == (cHeight - 1)) { // Reaching chart area top end
windValues.mvStart(40); // virtually delete 40 values from buffer
LOG_DEBUG(GwLog::LOG, "PageWindPlot Shift: Min: %d, Max: %d, Mid: %d", windValues.getMin(), windValues.getMax(), windValues.getMid());
if ((windValues.getMin() > wndCenter) || (windValues.getMax() < wndCenter)) {
int mid = windValues.getMid();
wndCenter = int((mid + (mid >= 0 ? 5 : -5)) / 10) * 10; // Set new center value; round to nearest 10 degree value
LOG_DEBUG(GwLog::LOG, "PageWindPlot Shift: Min: %d, Max: %d, new Center: %d", windValues.getMin(), windValues.getMax(), wndCenter);
}
continue; // Will leave loop
}
}
} else {
getdisplay().setFont(&Ubuntu_Bold8pt7b);
getdisplay().setCursor(xCenter - 55, height / 2);
getdisplay().print("No sensor data");
return;
}
LOG_DEBUG(GwLog::LOG, "PageWindPlot End: lastX: %d, lastY: %d, loop-Counter: %d", lastX, lastY, count);