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-rw-r--r--examples/opengl/hellowindow/hellowindow.cpp25
-rw-r--r--examples/opengl/legacy/framebufferobject2/glwidget.cpp5
-rw-r--r--examples/opengl/legacy/grabber/glwidget.cpp16
-rw-r--r--examples/opengl/legacy/pbuffers2/glwidget.cpp13
-rw-r--r--examples/opengl/legacy/samplebuffers/glwidget.cpp26
-rw-r--r--examples/opengl/qopenglwidget/glwidget.cpp26
-rw-r--r--examples/opengl/qopenglwindow/background.frag2
-rw-r--r--examples/opengl/threadedqopenglwidget/glwidget.cpp26
8 files changed, 66 insertions, 73 deletions
diff --git a/examples/opengl/hellowindow/hellowindow.cpp b/examples/opengl/hellowindow/hellowindow.cpp
index dc48cc4b76..235775f09a 100644
--- a/examples/opengl/hellowindow/hellowindow.cpp
+++ b/examples/opengl/hellowindow/hellowindow.cpp
@@ -276,21 +276,20 @@ void Renderer::createGeometry()
extrude(x4, y4, y4, x4);
extrude(y4, x4, y3, x3);
- const qreal Pi = 3.14159f;
const int NumSectors = 100;
-
+ const qreal sectorAngle = 2 * qreal(M_PI) / NumSectors;
for (int i = 0; i < NumSectors; ++i) {
- qreal angle1 = (i * 2 * Pi) / NumSectors;
- qreal x5 = 0.30 * qSin(angle1);
- qreal y5 = 0.30 * qCos(angle1);
- qreal x6 = 0.20 * qSin(angle1);
- qreal y6 = 0.20 * qCos(angle1);
-
- qreal angle2 = ((i + 1) * 2 * Pi) / NumSectors;
- qreal x7 = 0.20 * qSin(angle2);
- qreal y7 = 0.20 * qCos(angle2);
- qreal x8 = 0.30 * qSin(angle2);
- qreal y8 = 0.30 * qCos(angle2);
+ qreal angle = i * sectorAngle;
+ qreal x5 = 0.30 * qSin(angle);
+ qreal y5 = 0.30 * qCos(angle);
+ qreal x6 = 0.20 * qSin(angle);
+ qreal y6 = 0.20 * qCos(angle);
+
+ angle += sectorAngle;
+ qreal x7 = 0.20 * qSin(angle);
+ qreal y7 = 0.20 * qCos(angle);
+ qreal x8 = 0.30 * qSin(angle);
+ qreal y8 = 0.30 * qCos(angle);
quad(x5, y5, x6, y6, x7, y7, x8, y8);
diff --git a/examples/opengl/legacy/framebufferobject2/glwidget.cpp b/examples/opengl/legacy/framebufferobject2/glwidget.cpp
index ac8deddd1f..f14d31aff6 100644
--- a/examples/opengl/legacy/framebufferobject2/glwidget.cpp
+++ b/examples/opengl/legacy/framebufferobject2/glwidget.cpp
@@ -50,8 +50,7 @@
#include "glwidget.h"
#include <QtGui/QImage>
-
-#include <math.h>
+#include <qmath.h>
static GLint cubeArray[][3] = {
{0, 0, 0}, {0, 1, 0}, {1, 1, 0}, {1, 0, 0},
@@ -253,6 +252,6 @@ void GLWidget::drawCube(int i, GLfloat z, GLfloat rotation, GLfloat jmp, GLfloat
xOffs[i] = xOffs[i] > 1.0f ? 1.0f : -1.0f;
}
xOffs[i] += xInc[i];
- yOffs[i] = qAbs(cos((-3.141592f * jmp) * xOffs[i]) * amp) - 1;
+ yOffs[i] = qAbs(cos((-GLfloat(M_PI) * jmp) * xOffs[i]) * amp) - 1;
rot[i] += rotation;
}
diff --git a/examples/opengl/legacy/grabber/glwidget.cpp b/examples/opengl/legacy/grabber/glwidget.cpp
index 958b8055cd..6be4d30597 100644
--- a/examples/opengl/legacy/grabber/glwidget.cpp
+++ b/examples/opengl/legacy/grabber/glwidget.cpp
@@ -52,8 +52,7 @@
#include <QMouseEvent>
#include <QTimer>
-
-#include <math.h>
+#include <qmath.h>
GLWidget::GLWidget(QWidget *parent)
: QGLWidget(parent)
@@ -190,8 +189,6 @@ GLuint GLWidget::makeGear(const GLfloat *reflectance, GLdouble innerRadius,
GLdouble outerRadius, GLdouble thickness,
GLdouble toothSize, GLint toothCount)
{
- const double Pi = 3.14159265358979323846;
-
GLuint list = glGenLists(1);
glNewList(list, GL_COMPILE);
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, reflectance);
@@ -199,7 +196,8 @@ GLuint GLWidget::makeGear(const GLfloat *reflectance, GLdouble innerRadius,
GLdouble r0 = innerRadius;
GLdouble r1 = outerRadius - toothSize / 2.0;
GLdouble r2 = outerRadius + toothSize / 2.0;
- GLdouble delta = (2.0 * Pi / toothCount) / 4.0;
+ GLdouble toothAngle = 2 * M_PI / toothCount;
+ GLdouble delta = toothAngle / 4.0;
GLdouble z = thickness / 2.0;
glShadeModel(GL_FLAT);
@@ -211,7 +209,7 @@ GLuint GLWidget::makeGear(const GLfloat *reflectance, GLdouble innerRadius,
glBegin(GL_QUAD_STRIP);
for (int j = 0; j <= toothCount; ++j) {
- GLdouble angle = 2.0 * Pi * j / toothCount;
+ GLdouble angle = j * toothAngle;
glVertex3d(r0 * cos(angle), r0 * sin(angle), sign * z);
glVertex3d(r1 * cos(angle), r1 * sin(angle), sign * z);
glVertex3d(r0 * cos(angle), r0 * sin(angle), sign * z);
@@ -221,7 +219,7 @@ GLuint GLWidget::makeGear(const GLfloat *reflectance, GLdouble innerRadius,
glBegin(GL_QUADS);
for (int j = 0; j < toothCount; ++j) {
- GLdouble angle = 2.0 * Pi * j / toothCount;
+ GLdouble angle = j * toothAngle;
glVertex3d(r1 * cos(angle), r1 * sin(angle), sign * z);
glVertex3d(r2 * cos(angle + delta), r2 * sin(angle + delta), sign * z);
glVertex3d(r2 * cos(angle + 2 * delta), r2 * sin(angle + 2 * delta), sign * z);
@@ -233,7 +231,7 @@ GLuint GLWidget::makeGear(const GLfloat *reflectance, GLdouble innerRadius,
glBegin(GL_QUAD_STRIP);
for (int i = 0; i < toothCount; ++i) {
for (int j = 0; j < 2; ++j) {
- GLdouble angle = 2.0 * Pi * (i + j / 2.0) / toothCount;
+ GLdouble angle = (i + j / 2.0) * toothAngle;
GLdouble s1 = r1;
GLdouble s2 = r2;
if (j == 1)
@@ -257,7 +255,7 @@ GLuint GLWidget::makeGear(const GLfloat *reflectance, GLdouble innerRadius,
glBegin(GL_QUAD_STRIP);
for (int i = 0; i <= toothCount; ++i) {
- GLdouble angle = i * 2.0 * Pi / toothCount;
+ GLdouble angle = i * toothAngle;
glNormal3d(-cos(angle), -sin(angle), 0.0);
glVertex3d(r0 * cos(angle), r0 * sin(angle), +z);
glVertex3d(r0 * cos(angle), r0 * sin(angle), -z);
diff --git a/examples/opengl/legacy/pbuffers2/glwidget.cpp b/examples/opengl/legacy/pbuffers2/glwidget.cpp
index c99f9e40fa..447461dbb3 100644
--- a/examples/opengl/legacy/pbuffers2/glwidget.cpp
+++ b/examples/opengl/legacy/pbuffers2/glwidget.cpp
@@ -49,10 +49,9 @@
****************************************************************************/
#include <QtGui/QImage>
+#include <qmath.h>
#include "glwidget.h"
-#include <math.h>
-
#ifndef GL_MULTISAMPLE
#define GL_MULTISAMPLE 0x809D
#endif
@@ -291,8 +290,6 @@ void GLWidget::restoreGLState()
glPopAttrib();
}
-#define PI 3.14159
-
void GLWidget::timerEvent(QTimerEvent *)
{
if (QApplication::mouseButtons() != 0)
@@ -310,7 +307,7 @@ void GLWidget::timerEvent(QTimerEvent *)
rot_x += 0.1f;
int dx, dy; // disturbance point
- float s, v, W, t;
+ float s, v, W;
int i, j;
static float wt[128][128];
const int width = logo.width();
@@ -325,11 +322,11 @@ void GLWidget::timerEvent(QTimerEvent *)
for ( j = 0; j < width; ++j) {
s = sqrt((double) ((j - dx) * (j - dx) + (i - dy) * (i - dy)));
wt[i][j] += 0.1f;
- t = s / v;
+ const double angle = 2 * M_PI * W * (wt[i][j] + s / v);
if (s != 0)
- wave[i*width + j] = AMP * sin(2 * PI * W * (wt[i][j] + t)) / (0.2*(s + 2));
+ wave[i * width + j] = AMP * sin(angle) / (0.2 * (s + 2));
else
- wave[i*width + j] = AMP * sin(2 * PI * W * (wt[i][j] + t));
+ wave[i * width + j] = AMP * sin(angle);
}
}
}
diff --git a/examples/opengl/legacy/samplebuffers/glwidget.cpp b/examples/opengl/legacy/samplebuffers/glwidget.cpp
index 14c59c9143..da30de4d55 100644
--- a/examples/opengl/legacy/samplebuffers/glwidget.cpp
+++ b/examples/opengl/legacy/samplebuffers/glwidget.cpp
@@ -49,7 +49,7 @@
****************************************************************************/
#include "glwidget.h"
-#include <math.h>
+#include <qmath.h>
#ifndef GL_MULTISAMPLE
#define GL_MULTISAMPLE 0x809D
@@ -116,7 +116,6 @@ void GLWidget::timerEvent(QTimerEvent *)
void GLWidget::makeObject()
{
QColor qtGreen(QColor::fromCmykF(0.40, 0.0, 1.0, 0.0));
- const double Pi = 3.14159265358979323846;
const int NumSectors = 15;
GLdouble x1 = +0.06;
GLdouble y1 = -0.14;
@@ -130,18 +129,19 @@ void GLWidget::makeObject()
list = glGenLists(1);
glNewList(list, GL_COMPILE);
{
+ const double sectorAngle = 2 * M_PI / NumSectors;
for (int i = 0; i < NumSectors; ++i) {
- double angle1 = (i * 2 * Pi) / NumSectors;
- GLdouble x5 = 0.30 * sin(angle1);
- GLdouble y5 = 0.30 * cos(angle1);
- GLdouble x6 = 0.20 * sin(angle1);
- GLdouble y6 = 0.20 * cos(angle1);
-
- double angle2 = ((i + 1) * 2 * Pi) / NumSectors;
- GLdouble x7 = 0.20 * sin(angle2);
- GLdouble y7 = 0.20 * cos(angle2);
- GLdouble x8 = 0.30 * sin(angle2);
- GLdouble y8 = 0.30 * cos(angle2);
+ double angle = i * sectorAngle;
+ GLdouble x5 = 0.30 * sin(angle);
+ GLdouble y5 = 0.30 * cos(angle);
+ GLdouble x6 = 0.20 * sin(angle);
+ GLdouble y6 = 0.20 * cos(angle);
+
+ angle += sectorAngle;
+ GLdouble x7 = 0.20 * sin(angle);
+ GLdouble y7 = 0.20 * cos(angle);
+ GLdouble x8 = 0.30 * sin(angle);
+ GLdouble y8 = 0.30 * cos(angle);
qglColor(qtGreen);
quad(GL_QUADS, x5, y5, x6, y6, x7, y7, x8, y8);
diff --git a/examples/opengl/qopenglwidget/glwidget.cpp b/examples/opengl/qopenglwidget/glwidget.cpp
index bb7c952a26..40a1258dd5 100644
--- a/examples/opengl/qopenglwidget/glwidget.cpp
+++ b/examples/opengl/qopenglwidget/glwidget.cpp
@@ -54,7 +54,7 @@
#include <QOpenGLShaderProgram>
#include <QOpenGLTexture>
#include <QCoreApplication>
-#include <math.h>
+#include <qmath.h>
#include "mainwindow.h"
#include "bubble.h"
@@ -455,21 +455,21 @@ void GLWidget::createGeometry()
extrude(x4, y4, y4, x4);
extrude(y4, x4, y3, x3);
- const qreal Pi = 3.14159f;
const int NumSectors = 100;
+ const qreal sectorAngle = 2 * qreal(M_PI) / NumSectors;
for (int i = 0; i < NumSectors; ++i) {
- qreal angle1 = (i * 2 * Pi) / NumSectors;
- qreal x5 = 0.30 * sin(angle1);
- qreal y5 = 0.30 * cos(angle1);
- qreal x6 = 0.20 * sin(angle1);
- qreal y6 = 0.20 * cos(angle1);
-
- qreal angle2 = ((i + 1) * 2 * Pi) / NumSectors;
- qreal x7 = 0.20 * sin(angle2);
- qreal y7 = 0.20 * cos(angle2);
- qreal x8 = 0.30 * sin(angle2);
- qreal y8 = 0.30 * cos(angle2);
+ qreal angle = i * sectorAngle;
+ qreal x5 = 0.30 * sin(angle);
+ qreal y5 = 0.30 * cos(angle);
+ qreal x6 = 0.20 * sin(angle);
+ qreal y6 = 0.20 * cos(angle);
+
+ angle += sectorAngle;
+ qreal x7 = 0.20 * sin(angle);
+ qreal y7 = 0.20 * cos(angle);
+ qreal x8 = 0.30 * sin(angle);
+ qreal y8 = 0.30 * cos(angle);
quad(x5, y5, x6, y6, x7, y7, x8, y8);
diff --git a/examples/opengl/qopenglwindow/background.frag b/examples/opengl/qopenglwindow/background.frag
index eecb6d3120..4af85aae8e 100644
--- a/examples/opengl/qopenglwindow/background.frag
+++ b/examples/opengl/qopenglwindow/background.frag
@@ -1,4 +1,4 @@
-#define M_PI 3.1415926535897932384626433832795
+#define M_PI 3.14159265358979323846
#define SPEED 10000.0
uniform int currentTime;
diff --git a/examples/opengl/threadedqopenglwidget/glwidget.cpp b/examples/opengl/threadedqopenglwidget/glwidget.cpp
index f9738db2e5..cc528a734a 100644
--- a/examples/opengl/threadedqopenglwidget/glwidget.cpp
+++ b/examples/opengl/threadedqopenglwidget/glwidget.cpp
@@ -49,7 +49,7 @@
****************************************************************************/
#include "glwidget.h"
-#include <math.h>
+#include <qmath.h>
#include <QGuiApplication>
GLWidget::GLWidget(QWidget *parent)
@@ -282,21 +282,21 @@ void Renderer::createGeometry()
extrude(x4, y4, y4, x4);
extrude(y4, x4, y3, x3);
- const qreal Pi = 3.14159f;
const int NumSectors = 100;
+ const qreal sectorAngle = 2 * qreal(M_PI) / NumSectors;
for (int i = 0; i < NumSectors; ++i) {
- qreal angle1 = (i * 2 * Pi) / NumSectors;
- qreal x5 = 0.30 * sin(angle1);
- qreal y5 = 0.30 * cos(angle1);
- qreal x6 = 0.20 * sin(angle1);
- qreal y6 = 0.20 * cos(angle1);
-
- qreal angle2 = ((i + 1) * 2 * Pi) / NumSectors;
- qreal x7 = 0.20 * sin(angle2);
- qreal y7 = 0.20 * cos(angle2);
- qreal x8 = 0.30 * sin(angle2);
- qreal y8 = 0.30 * cos(angle2);
+ qreal angle = i * sectorAngle;
+ qreal x5 = 0.30 * sin(angle);
+ qreal y5 = 0.30 * cos(angle);
+ qreal x6 = 0.20 * sin(angle);
+ qreal y6 = 0.20 * cos(angle);
+
+ angle += sectorAngle;
+ qreal x7 = 0.20 * sin(angle);
+ qreal y7 = 0.20 * cos(angle);
+ qreal x8 = 0.30 * sin(angle);
+ qreal y8 = 0.30 * cos(angle);
quad(x5, y5, x6, y6, x7, y7, x8, y8);
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 10:15:02 +0000