Add createCube function

2 files changed, 75 insertions, 0 deletions

diff --git a/src/glitem.cpp b/src/glitem.cpp
index 6e3984c..a307e38 100644
--- a/src/glitem.cpp
+++ b/src/glitem.cpp
@@ -354,6 +354,74 @@ void GLItem::drawAxes(double length)
     glLineWidth(lineWidth[0]);
 }
 
+void GLItem::createCube(const QVector3D &lbb, const QVector3D &rtf)
+{
+    QVector3D n0 = QVector3D(0.0, 0.0, 1.0); //dummy normal
+    QVector3D t0 = QVector3D(0.0,0.0,0.0); //dummy texture
+
+    // Create all the vectors for caching
+    QVector3D lbf = QVector3D(lbb.x(), lbb.y(), rtf.z());
+    QVector3D rbb = QVector3D(rtf.x(), lbb.y(), lbb.z());
+    QVector3D rbf = QVector3D(rtf.x(), lbb.y(), rtf.y());
+    QVector3D ltb = QVector3D(lbb.x(), rtf.y(), lbb.z());
+    QVector3D ltf = QVector3D(lbb.x(), rtf.y(), rtf.z());
+    QVector3D rtb = QVector3D(rtf.x(), rtf.y(), lbb.z());
+
+    // Bottom plane
+    m_points.append(GLPoint(lbb, n0, t0, GLColorRgba::clRed));
+    m_points.append(GLPoint(lbf, n0, t0, GLColorRgba::clRed));
+    m_points.append(GLPoint(rbb, n0, t0, GLColorRgba::clRed));
+
+    m_points.append(GLPoint(rbf, n0, t0, GLColorRgba::clRed));
+    m_points.append(GLPoint(lbf, n0, t0, GLColorRgba::clRed));
+    m_points.append(GLPoint(rbb, n0, t0, GLColorRgba::clRed));
+
+    // Back plane
+    m_points.append(GLPoint(lbb, n0, t0, GLColorRgba::clGreen));
+    m_points.append(GLPoint(rbb, n0, t0, GLColorRgba::clGreen));
+    m_points.append(GLPoint(ltb, n0, t0, GLColorRgba::clGreen));
+
+    m_points.append(GLPoint(rtb, n0, t0, GLColorRgba::clGreen));
+    m_points.append(GLPoint(rbb, n0, t0, GLColorRgba::clGreen));
+    m_points.append(GLPoint(ltb, n0, t0, GLColorRgba::clGreen));
+
+    // Left plane
+    m_points.append(GLPoint(lbb, n0, t0, GLColorRgba::clBlue));
+    m_points.append(GLPoint(lbf, n0, t0, GLColorRgba::clBlue));
+    m_points.append(GLPoint(ltb, n0, t0, GLColorRgba::clBlue));
+
+    m_points.append(GLPoint(ltf, n0, t0, GLColorRgba::clBlue));
+    m_points.append(GLPoint(lbf, n0, t0, GLColorRgba::clBlue));
+    m_points.append(GLPoint(ltb, n0, t0, GLColorRgba::clBlue));
+
+    // Right plane
+    m_points.append(GLPoint(rbb, n0, t0, GLColorRgba::clBlue));
+    m_points.append(GLPoint(rbf, n0, t0, GLColorRgba::clBlue));
+    m_points.append(GLPoint(rtb, n0, t0, GLColorRgba::clBlue));
+
+    m_points.append(GLPoint(rtf, n0, t0, GLColorRgba::clBlue));
+    m_points.append(GLPoint(rbf, n0, t0, GLColorRgba::clBlue));
+    m_points.append(GLPoint(rtb, n0, t0, GLColorRgba::clBlue));
+
+    // Top plane
+    m_points.append(GLPoint(ltb, n0, t0, GLColorRgba::clRed));
+    m_points.append(GLPoint(ltf, n0, t0, GLColorRgba::clRed));
+    m_points.append(GLPoint(rtb, n0, t0, GLColorRgba::clRed));
+
+    m_points.append(GLPoint(rtf, n0, t0, GLColorRgba::clRed));
+    m_points.append(GLPoint(ltf, n0, t0, GLColorRgba::clRed));
+    m_points.append(GLPoint(rtb, n0, t0, GLColorRgba::clRed));
+
+    // Front plane
+    m_points.append(GLPoint(lbf, n0, t0, GLColorRgba::clGreen));
+    m_points.append(GLPoint(rbf, n0, t0, GLColorRgba::clGreen));
+    m_points.append(GLPoint(ltf, n0, t0, GLColorRgba::clGreen));
+
+    m_points.append(GLPoint(rtf, n0, t0, GLColorRgba::clGreen));
+    m_points.append(GLPoint(rbf, n0, t0, GLColorRgba::clGreen));
+    m_points.append(GLPoint(ltf, n0, t0, GLColorRgba::clGreen));
+}
+
 void GLItem::createAxis(double length, const QVector3D & origin, const QVector3D & axis,
                  const QVector3D & normal, const QVector3D & texCoord,
                  const GLColorRgba& color)
diff --git a/src/glitem.h b/src/glitem.h
index 268dbeb..5e60ee6 100644
--- a/src/glitem.h
+++ b/src/glitem.h
@@ -125,6 +125,13 @@ protected:
     virtual void drawAxes(double length);
 
     /**
+     * @brief createCubef Creates a cube and apends it for drawing.
+     * @param lbb The left bottom back cube vector.
+     * @param rtf The right top front cube vector.
+     */
+    virtual void createCube(const QVector3D &lbb, const QVector3D &rtf);
+
+    /**
      * @brief createAxes Creates x, y and z axis with specified length starting for (0,0,0)
      * @param length Axes length.
      */