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#include "continuouscolorscale.h"
#include <cmath>
ContinuousColorScale::ContinuousColorScale()
: ColorScale{
QColor( 0, 0, 0),
QColor( 35, 0, 0),
QColor( 52, 0, 0),
QColor( 60, 0, 0),
QColor( 63, 1, 0),
QColor( 64, 2, 0),
QColor( 68, 5, 0),
QColor( 69, 6, 0),
QColor( 72, 8, 0),
QColor( 74, 10, 0),
QColor( 77, 12, 0),
QColor( 78, 14, 0),
QColor( 81, 16, 0),
QColor( 83, 17, 0),
QColor( 85, 19, 0),
QColor( 86, 20, 0),
QColor( 89, 22, 0),
QColor( 91, 24, 0),
QColor( 92, 25, 0),
QColor( 94, 26, 0),
QColor( 95, 28, 0),
QColor( 98, 30, 0),
QColor(100, 31, 0),
QColor(102, 33, 0),
QColor(103, 34, 0),
QColor(105, 35, 0),
QColor(106, 36, 0),
QColor(108, 38, 0),
QColor(109, 39, 0),
QColor(111, 40, 0),
QColor(112, 42, 0),
QColor(114, 43, 0),
QColor(115, 44, 0),
QColor(117, 45, 0),
QColor(119, 47, 0),
QColor(119, 47, 0),
QColor(120, 48, 0),
QColor(122, 49, 0),
QColor(123, 51, 0),
QColor(125, 52, 0),
QColor(125, 52, 0),
QColor(126, 53, 0),
QColor(128, 54, 0),
QColor(129, 56, 0),
QColor(129, 56, 0),
QColor(131, 57, 0),
QColor(132, 58, 0),
QColor(134, 59, 0),
QColor(134, 59, 0),
QColor(136, 61, 0),
QColor(137, 62, 0),
QColor(137, 62, 0),
QColor(139, 63, 0),
QColor(139, 63, 0),
QColor(140, 65, 0),
QColor(142, 66, 0),
QColor(142, 66, 0),
QColor(143, 67, 0),
QColor(143, 67, 0),
QColor(145, 68, 0),
QColor(145, 68, 0),
QColor(146, 70, 0),
QColor(146, 70, 0),
QColor(148, 71, 0),
QColor(148, 71, 0),
QColor(149, 72, 0),
QColor(149, 72, 0),
QColor(151, 73, 0),
QColor(151, 73, 0),
QColor(153, 75, 0),
QColor(153, 75, 0),
QColor(154, 76, 0),
QColor(154, 76, 0),
QColor(154, 76, 0),
QColor(156, 77, 0),
QColor(156, 77, 0),
QColor(157, 79, 0),
QColor(157, 79, 0),
QColor(159, 80, 0),
QColor(159, 80, 0),
QColor(159, 80, 0),
QColor(160, 81, 0),
QColor(160, 81, 0),
QColor(162, 82, 0),
QColor(162, 82, 0),
QColor(163, 84, 0),
QColor(163, 84, 0),
QColor(165, 85, 0),
QColor(165, 85, 0),
QColor(166, 86, 0),
QColor(166, 86, 0),
QColor(166, 86, 0),
QColor(168, 87, 0),
QColor(168, 87, 0),
QColor(170, 89, 0),
QColor(170, 89, 0),
QColor(171, 90, 0),
QColor(171, 90, 0),
QColor(173, 91, 0),
QColor(173, 91, 0),
QColor(174, 93, 0),
QColor(174, 93, 0),
QColor(176, 94, 0),
QColor(176, 94, 0),
QColor(177, 95, 0),
QColor(177, 95, 0),
QColor(179, 96, 0),
QColor(179, 96, 0),
QColor(180, 98, 0),
QColor(182, 99, 0),
QColor(182, 99, 0),
QColor(183, 100, 0),
QColor(183, 100, 0),
QColor(185, 102, 0),
QColor(185, 102, 0),
QColor(187, 103, 0),
QColor(187, 103, 0),
QColor(188, 104, 0),
QColor(188, 104, 0),
QColor(190, 105, 0),
QColor(191, 107, 0),
QColor(191, 107, 0),
QColor(193, 108, 0),
QColor(193, 108, 0),
QColor(194, 109, 0),
QColor(196, 110, 0),
QColor(196, 110, 0),
QColor(197, 112, 0),
QColor(197, 112, 0),
QColor(199, 113, 0),
QColor(200, 114, 0),
QColor(200, 114, 0),
QColor(202, 116, 0),
QColor(202, 116, 0),
QColor(204, 117, 0),
QColor(205, 118, 0),
QColor(205, 118, 0),
QColor(207, 119, 0),
QColor(208, 121, 0),
QColor(208, 121, 0),
QColor(210, 122, 0),
QColor(211, 123, 0),
QColor(211, 123, 0),
QColor(213, 124, 0),
QColor(214, 126, 0),
QColor(214, 126, 0),
QColor(216, 127, 0),
QColor(217, 128, 0),
QColor(217, 128, 0),
QColor(219, 130, 0),
QColor(221, 131, 0),
QColor(221, 131, 0),
QColor(222, 132, 0),
QColor(224, 133, 0),
QColor(224, 133, 0),
QColor(225, 135, 0),
QColor(227, 136, 0),
QColor(227, 136, 0),
QColor(228, 137, 0),
QColor(230, 138, 0),
QColor(230, 138, 0),
QColor(231, 140, 0),
QColor(233, 141, 0),
QColor(233, 141, 0),
QColor(234, 142, 0),
QColor(236, 144, 0),
QColor(236, 144, 0),
QColor(238, 145, 0),
QColor(239, 146, 0),
QColor(241, 147, 0),
QColor(241, 147, 0),
QColor(242, 149, 0),
QColor(244, 150, 0),
QColor(244, 150, 0),
QColor(245, 151, 0),
QColor(247, 153, 0),
QColor(247, 153, 0),
QColor(248, 154, 0),
QColor(250, 155, 0),
QColor(251, 156, 0),
QColor(251, 156, 0),
QColor(253, 158, 0),
QColor(255, 159, 0),
QColor(255, 159, 0),
QColor(255, 160, 0),
QColor(255, 161, 0),
QColor(255, 163, 0),
QColor(255, 163, 0),
QColor(255, 164, 0),
QColor(255, 165, 0),
QColor(255, 167, 0),
QColor(255, 167, 0),
QColor(255, 168, 0),
QColor(255, 169, 0),
QColor(255, 169, 0),
QColor(255, 170, 0),
QColor(255, 172, 0),
QColor(255, 173, 0),
QColor(255, 173, 0),
QColor(255, 174, 0),
QColor(255, 175, 0),
QColor(255, 177, 0),
QColor(255, 178, 0),
QColor(255, 179, 0),
QColor(255, 181, 0),
QColor(255, 181, 0),
QColor(255, 182, 0),
QColor(255, 183, 0),
QColor(255, 184, 0),
QColor(255, 187, 7),
QColor(255, 188, 10),
QColor(255, 189, 14),
QColor(255, 191, 18),
QColor(255, 192, 21),
QColor(255, 193, 25),
QColor(255, 195, 29),
QColor(255, 197, 36),
QColor(255, 198, 40),
QColor(255, 200, 43),
QColor(255, 202, 51),
QColor(255, 204, 54),
QColor(255, 206, 61),
QColor(255, 207, 65),
QColor(255, 210, 72),
QColor(255, 211, 76),
QColor(255, 214, 83),
QColor(255, 216, 91),
QColor(255, 219, 98),
QColor(255, 221, 105),
QColor(255, 223, 109),
QColor(255, 225, 116),
QColor(255, 228, 123),
QColor(255, 232, 134),
QColor(255, 234, 142),
QColor(255, 237, 149),
QColor(255, 239, 156),
QColor(255, 240, 160),
QColor(255, 243, 167),
QColor(255, 246, 174),
QColor(255, 248, 182),
QColor(255, 249, 185),
QColor(255, 252, 193),
QColor(255, 253, 196),
QColor(255, 255, 204),
QColor(255, 255, 207),
QColor(255, 255, 211),
QColor(255, 255, 218),
QColor(255, 255, 222),
QColor(255, 255, 225),
QColor(255, 255, 229),
QColor(255, 255, 233),
QColor(255, 255, 236),
QColor(255, 255, 240),
QColor(255, 255, 244),
QColor(255, 255, 247),
QColor(255, 255, 255)}
{
}
QColor ContinuousColorScale::color(qreal t) const
{
if (t < m_min || t > m_max)
return QColor();
// normalize t
t = (t - m_min) / (m_max - m_min);
// find which colors in the scale are adjacent to ours
qreal step = 1.0 / m_colors.size();
int i = (int) (t / step);
if (i >= m_colors.size() - 1)
return m_colors.last();
// normalize t between the two colors
int j = i + 1;
t = (t - i*step) / (j*step - i*step);
return m_colors[i + round(t)];
}
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