Example of using "Canvas" form "Graphics" library to display 3D graphics.

Dependencies:   BSP_DISCO_F746NG Graphics mbed

Revision:
1:4a5e329e617b
Child:
3:aca7fe2d44b3
diff -r 8acbce46eede -r 4a5e329e617b Models/Cube.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Models/Cube.cpp	Thu Nov 10 15:38:50 2016 +0000
@@ -0,0 +1,101 @@
+//
+// Cube.cpp - example of usage graphics commands to create 3D graphics.
+//
+// This example is based on code written by
+// Fabio de Albuquerque Dela Antonio (fabio914 at gmail.com)
+// See : https://github.com/fabio914/arduinogl/blob/master/examples
+//
+
+#include "Cube.h"
+
+// Constructor
+Cube::Cube(Display * display)
+    : Angle()
+{
+    glUseCanvas(display);
+
+    _perspectiveAspect = display->DisplayWidth() / display->DisplayHeight();
+}
+
+/**
+* @brief  Model setup.
+* @retval None
+*/
+void Cube::Setup()
+{
+    glPointSize(4);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+
+    gluPerspective(30.0, _perspectiveAspect, 0.1f, 9999.f);
+
+    glMatrixMode(GL_MODELVIEW);
+}
+
+/**
+* @brief  Renders a square for given view angle and scale.
+* @param  None
+* @retval None
+*/
+void Cube::Render()
+{
+    const float scale = 2.5;
+
+    // Put the initial matrix at glMatrices[glmatrixMode == GL_PROJECTION]
+    glLoadIdentity();
+    
+    // Transform matrix
+    gluLookAt(10, 8, -10, 0, 0, 0, 0, 1, 0);
+
+    glRotatef(angle, 0.f, 1.f, 0.f);
+    glScalef(scale, scale, scale);
+
+    DrawCube();
+}
+
+
+void Cube::DrawCube()
+{
+    glBegin(GL_POLYGON);
+    glVertex3f(-1, -1, -1);
+    glVertex3f(1, -1, -1);
+    glVertex3f(1, 1, -1);
+    glVertex3f(-1, 1, -1);
+    glEnd();
+
+    glBegin(GL_POLYGON);
+    glVertex3f(1, -1, -1);
+    glVertex3f(1, -1, 1);
+    glVertex3f(1, 1, 1);
+    glVertex3f(1, 1, -1);
+    glEnd();
+
+    glBegin(GL_POLYGON);
+    glVertex3f(1, -1, 1);
+    glVertex3f(-1, -1, 1);
+    glVertex3f(-1, 1, 1);
+    glVertex3f(1, 1, 1);
+    glEnd();
+
+    glBegin(GL_POLYGON);
+    glVertex3f(-1, -1, 1);
+    glVertex3f(-1, -1, -1);
+    glVertex3f(-1, 1, -1);
+    glVertex3f(-1, 1, 1);
+    glEnd();
+
+    glBegin(GL_POLYGON);
+    glVertex3f(-1, -1, 1);
+    glVertex3f(1, -1, 1);
+    glVertex3f(1, -1, -1);
+    glVertex3f(-1, -1, -1);
+    glEnd();
+
+    glBegin(GL_POLYGON);
+    glVertex3f(-1, 1, -1);
+    glVertex3f(1, 1, -1);
+    glVertex3f(1, 1, 1);
+    glVertex3f(-1, 1, 1);
+    glEnd();
+}
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