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GLScope: polar grid
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f4exb
parent
b5a2180c30
commit
198de8d139
@ -27,6 +27,17 @@
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#include "glscope.h"
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const GLfloat GLScope::m_q3RadiiConst[] = {
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0.0f, 0.5f, 1.0f, 0.5f, // 0
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0.0f, 0.75f, 1.0f, 0.25f, // 30
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0.0f, 1.0f, 1.0f, 0.0f, // 45
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0.25f, 1.0f, 0.75f, 0.0f, // 60
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0.5f, 1.0f, 0.5f, 0.0f, // 90
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0.75f, 1.0f, 0.25f, 0.0f, // 120
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1.0f, 1.0f, 0.0f, 0.0f, // 135
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1.0f, 0.75f, 0.0f, 0.25f // 150
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};
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GLScope::GLScope(QWidget *parent) : QGLWidget(parent),
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m_tracesData(nullptr),
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m_traces(nullptr),
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@ -65,6 +76,10 @@ GLScope::GLScope(QWidget *parent) : QGLWidget(parent),
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m_channelOverlayFont.setBold(true);
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m_channelOverlayFont.setPointSize(font().pointSize() + 1);
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m_q3Radii.allocate(4*8);
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std::copy(m_q3RadiiConst, m_q3RadiiConst + 4*8, m_q3Radii.m_array);
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m_q3Circle.allocate(4*96); // 96 segments = 4*24 with 1/24 being 15 degrees
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drawCircle(0.5f, 0.5f, 0.5f, 96, false, m_q3Circle.m_array);
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//m_traceCounter = 0;
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}
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@ -395,93 +410,8 @@ void GLScope::paintGL()
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}
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// paint grid
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const ScaleEngine::TickList *tickList;
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const ScaleEngine::Tick *tick;
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// Y2 (Focused Y trace)
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{
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tickList = &m_y2Scale.getTickList();
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//GLfloat q3[4*tickList->count()];
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GLfloat *q3 = m_q3TickY2.m_array;
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int effectiveTicks = 0;
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for (int i = 0; i < tickList->count(); i++)
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{
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tick = &(*tickList)[i];
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if ((tick->major) && (tick->textSize > 0))
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{
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float y = 1 - (tick->pos / m_y2Scale.getSize());
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q3[4 * effectiveTicks] = 0;
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q3[4 * effectiveTicks + 1] = y;
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q3[4 * effectiveTicks + 2] = 1;
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q3[4 * effectiveTicks + 3] = y;
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effectiveTicks++;
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}
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}
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float blue = 1.0f;
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QVector4D color(1.0f, 1.0f, blue, (float)m_displayGridIntensity / 100.0f);
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m_glShaderSimple.drawSegments(m_glScopeMatrix2, color, q3, 2 * effectiveTicks);
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}
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// X2 (time)
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{
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tickList = &m_x2Scale.getTickList();
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//GLfloat q3[4*tickList->count()];
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GLfloat *q3 = m_q3TickX2.m_array;
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int effectiveTicks = 0;
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for (int i = 0; i < tickList->count(); i++)
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{
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tick = &(*tickList)[i];
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if ((tick->major) && (tick->textSize > 0))
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{
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float x = tick->pos / m_x2Scale.getSize();
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q3[4 * effectiveTicks] = x;
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q3[4 * effectiveTicks + 1] = 0;
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q3[4 * effectiveTicks + 2] = x;
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q3[4 * effectiveTicks + 3] = 1;
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effectiveTicks++;
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}
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}
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QVector4D color(1.0f, 1.0f, 1.0f, (float)m_displayGridIntensity / 100.0f);
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m_glShaderSimple.drawSegments(m_glScopeMatrix2, color, q3, 2 * effectiveTicks);
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}
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// paint left #2 scale
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{
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GLfloat vtx1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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GLfloat tex1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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m_glShaderLeft2Scale.drawSurface(m_glLeft2ScaleMatrix, tex1, vtx1, 4);
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}
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// paint bottom #2 scale
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{
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GLfloat vtx1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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GLfloat tex1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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m_glShaderBottom2Scale.drawSurface(m_glBot2ScaleMatrix, tex1, vtx1, 4);
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}
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drawRectGrid2();
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// paint traces #1..n
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if (m_traceSize > 0)
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@ -787,88 +717,10 @@ void GLScope::paintGL()
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// paint grid
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// Horizontal Y2
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tickList = &m_y2Scale.getTickList();
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{
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//GLfloat q3[4*tickList->count()];
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GLfloat *q3 = m_q3TickY2.m_array;
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int effectiveTicks = 0;
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for (int i = 0; i < tickList->count(); i++)
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{
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tick = &(*tickList)[i];
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if ((tick->major) && (tick->textSize > 0))
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{
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float y = 1 - (tick->pos / m_y2Scale.getSize());
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q3[4 * effectiveTicks] = 0;
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q3[4 * effectiveTicks + 1] = y;
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q3[4 * effectiveTicks + 2] = 1;
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q3[4 * effectiveTicks + 3] = y;
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effectiveTicks++;
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}
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}
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QVector4D color(1.0f, 1.0f, 1.0f, (float)m_displayGridIntensity / 100.0f);
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m_glShaderSimple.drawSegments(m_glScopeMatrix2, color, q3, 2 * effectiveTicks);
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}
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// Vertical X2
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tickList = &m_x2Scale.getTickList();
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{
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//GLfloat q3[4*tickList->count()];
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GLfloat *q3 = m_q3TickX2.m_array;
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int effectiveTicks = 0;
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for (int i = 0; i < tickList->count(); i++)
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{
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tick = &(*tickList)[i];
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if ((tick->major) && (tick->textSize > 0))
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{
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float x = tick->pos / m_x2Scale.getSize();
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q3[4 * effectiveTicks] = x;
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q3[4 * effectiveTicks + 1] = 0;
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q3[4 * effectiveTicks + 2] = x;
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q3[4 * effectiveTicks + 3] = 1;
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effectiveTicks++;
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}
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}
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QVector4D color(1.0f, 1.0f, 1.0f, (float)m_displayGridIntensity / 100.0f);
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m_glShaderSimple.drawSegments(m_glScopeMatrix2, color, q3, 2 * effectiveTicks);
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}
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// paint left #2 scale
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{
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GLfloat vtx1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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GLfloat tex1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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m_glShaderLeft2Scale.drawSurface(m_glLeft2ScaleMatrix, tex1, vtx1, 4);
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}
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// paint bottom #2 scale
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{
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GLfloat vtx1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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GLfloat tex1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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m_glShaderBottom2Scale.drawSurface(m_glBot2ScaleMatrix, tex1, vtx1, 4);
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if (m_displayPolGrid) {
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drawPolarGrid2();
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} else {
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drawRectGrid2();
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}
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// paint polar traces
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@ -899,8 +751,6 @@ void GLScope::paintGL()
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{
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const float *trace = (*m_traces)[i];
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const ScopeVis::TraceData &traceData = (*m_tracesData)[i];
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bool positiveProjection = m_projectionTypes && (i < m_projectionTypes->size()) ?
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isPositiveProjection((*m_projectionTypes)[i]) : false;
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if (!traceData.m_viewTrace) {
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continue;
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@ -908,6 +758,9 @@ void GLScope::paintGL()
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if (polarConversion)
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{
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bool positiveProjection = m_projectionTypes && (i < m_projectionTypes->size()) ?
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isPositiveProjection((*m_projectionTypes)[i]) : false;
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for (int j = start; j < end; j++)
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{
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float r;
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@ -1955,3 +1808,146 @@ void GLScope::cleanup()
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m_glShaderPowerOverlay.cleanup();
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//doneCurrent();
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}
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void GLScope::drawRectGrid2()
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{
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const ScaleEngine::TickList *tickList;
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const ScaleEngine::Tick *tick;
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// Horizontal Y2
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tickList = &m_y2Scale.getTickList();
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{
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//GLfloat q3[4*tickList->count()];
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GLfloat *q3 = m_q3TickY2.m_array;
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int effectiveTicks = 0;
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for (int i = 0; i < tickList->count(); i++)
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{
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tick = &(*tickList)[i];
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if ((tick->major) && (tick->textSize > 0))
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{
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float y = 1 - (tick->pos / m_y2Scale.getSize());
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q3[4 * effectiveTicks] = 0;
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q3[4 * effectiveTicks + 1] = y;
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q3[4 * effectiveTicks + 2] = 1;
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q3[4 * effectiveTicks + 3] = y;
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effectiveTicks++;
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}
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}
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QVector4D color(1.0f, 1.0f, 1.0f, (float)m_displayGridIntensity / 100.0f);
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m_glShaderSimple.drawSegments(m_glScopeMatrix2, color, q3, 2 * effectiveTicks);
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}
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// Vertical X2
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tickList = &m_x2Scale.getTickList();
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{
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//GLfloat q3[4*tickList->count()];
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GLfloat *q3 = m_q3TickX2.m_array;
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int effectiveTicks = 0;
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for (int i = 0; i < tickList->count(); i++)
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{
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tick = &(*tickList)[i];
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if ((tick->major) && (tick->textSize > 0))
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{
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float x = tick->pos / m_x2Scale.getSize();
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q3[4 * effectiveTicks] = x;
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q3[4 * effectiveTicks + 1] = 0;
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q3[4 * effectiveTicks + 2] = x;
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q3[4 * effectiveTicks + 3] = 1;
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effectiveTicks++;
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}
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}
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QVector4D color(1.0f, 1.0f, 1.0f, (float)m_displayGridIntensity / 100.0f);
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m_glShaderSimple.drawSegments(m_glScopeMatrix2, color, q3, 2 * effectiveTicks);
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}
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// paint left #2 scale
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{
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GLfloat vtx1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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GLfloat tex1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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m_glShaderLeft2Scale.drawSurface(m_glLeft2ScaleMatrix, tex1, vtx1, 4);
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}
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// paint bottom #2 scale
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{
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GLfloat vtx1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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GLfloat tex1[] = {
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0, 1,
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1, 1,
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1, 0,
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0, 0};
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m_glShaderBottom2Scale.drawSurface(m_glBot2ScaleMatrix, tex1, vtx1, 4);
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}
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}
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void GLScope::drawPolarGrid2()
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{
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QVector4D color(1.0f, 1.0f, 1.0f, (float) m_displayGridIntensity / 100.0f);
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m_glShaderSimple.drawSegments(m_glScopeMatrix2, color, m_q3Radii.m_array, 2*8); // Radii
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m_glShaderSimple.drawSegments(m_glScopeMatrix2, color, m_q3Circle.m_array, 2*96); // Unit circle
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}
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// inspired by http://slabode.exofire.net/circle_draw.shtml
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void GLScope::drawCircle(float cx, float cy, float r, int num_segments, bool dotted, GLfloat *vertices)
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{
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float theta = 2*M_PI / float(num_segments);
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float tangential_factor = tanf(theta); //calculate the tangential factor
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float radial_factor = cosf(theta); //calculate the radial factor
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float x = r; //we start at angle = 0
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float y = 0;
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for (int ii = 0; ii < num_segments; ii++)
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{
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//output vertex
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if (dotted)
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{
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vertices[2*ii] = x + cx;
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vertices[2*ii+1] = y + cy;
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}
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else
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{
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vertices[4*ii] = x + cx;
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vertices[4*ii+1] = y + cy;
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}
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// calculate the tangential vector
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// remember, the radial vector is (x, y)
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// to get the tangential vector we flip those coordinates and negate one of them
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float tx = -y;
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float ty = x;
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//add the tangential vector
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x += tx * tangential_factor;
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y += ty * tangential_factor;
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//correct using the radial factor
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x *= radial_factor;
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y *= radial_factor;
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if (!dotted)
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{
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vertices[4*ii+2] = x + cx;
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vertices[4*ii+3] = y + cy;
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}
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}
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}
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@ -149,12 +149,16 @@ private:
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IncrementalArray<GLfloat> m_q3TickY2;
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IncrementalArray<GLfloat> m_q3TickX1;
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IncrementalArray<GLfloat> m_q3TickX2;
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IncrementalArray<GLfloat> m_q3Radii; //!< Polar grid radii
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IncrementalArray<GLfloat> m_q3Circle; //!< Polar grid unit circle
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static const int m_topMargin = 5;
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static const int m_botMargin = 20;
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static const int m_leftMargin = 35;
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static const int m_rightMargin = 5;
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static const GLfloat m_q3RadiiConst[];
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void initializeGL();
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void resizeGL(int width, int height);
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void paintGL();
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@ -179,6 +183,10 @@ private:
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|| (projectionType == Projector::ProjectionMagSq);
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}
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void drawRectGrid2();
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void drawPolarGrid2();
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static void drawCircle(float cx, float cy, float r, int num_segments, bool dotted, GLfloat *vertices);
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protected slots:
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void cleanup();
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void tick();
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