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Implemented float_map, but result is unexpected (see batterygraphdisplay.cpp:33)

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CommanderRedYT
2022-03-03 22:42:28 +01:00
parent 177220df6b
commit a222d68264
1 changed files with 13 additions and 4 deletions
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17
main/displays/batterygraphdisplay.cpp
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@ -7,9 +7,10 @@ constexpr const char * const TAG = "BatteryGraphDisplay";
// local includes
#include "battery.h"
#include "globals.h"
#include "displays/menus/batterymenu.h"
#include "globals.h"
#include "newsettings.h"
#include "utils.h"
namespace {
constexpr char TEXT_BATTERY_GRAPH[] = "Battery Level";
@ -21,13 +22,21 @@ void BatteryGraphDisplay::initScreen()
Base::initScreen();
const auto points = count_curve_points(configs.battery.cellType.value);
ESP_LOGI(TAG, "Battery graph points: %d, cell type: %s", points, toString(configs.battery.cellType.value).c_str());
const auto available_space = espgui::tft.height() - TOP_OFFSET;
const uint16_t onePercent = espgui::tft.width() / 100;
const auto max_height = espgui::tft.height() - TOP_OFFSET;
const auto max_width = espgui::tft.width();
const uint16_t part = max_width / points;
for (uint8_t i = 0; points >= i; i++) {
// draw lines between point->minVoltage and point->maxVoltage from left to right
if (const auto point = get_point_n_voltages(configs.battery.cellType.value, points - i); point)
{
// draw line between minVoltage and maxVoltage of point. When implemented, please contact @CommanderRedYT so that he can move and optimize the code
// TODO: Fix float_map to not be broken
// Current output: float_map(335, 2.55, 4.5, 0, 280) = 47736
const int x1 = part * i;
const int y1 = float_map(point->minVoltage, 2.55, 4.5, 0, max_height);
const int x2 = part * (i + 1);
const int y2 = float_map(point->maxVoltage, 2.55, 4.5, 0, max_height);
espgui::tft.drawLine(x1, y1, x2, y2, TFT_WHITE);
ESP_LOGI(TAG, "espgui::tft.drawLine(%d, %d, %d, %d, TFT_WHITE);", x1, y1, x2, y2);
}
}
}