/*!
* \brief draw points cloud
*
* Draw 3d+color if pcloud_3d has data (size>0) and
* draw 2d in red color at heigh=0 if pcloud_2d >0
*/
void FrameGL::drawCloud()
{
glPointSize(1.0f);
glBegin(GL_POINTS);
if(pcloud_3d.size()>0){
for(int i = 0; i < pcloud_3d.size(); i++){
glColor3b(pcloud_3d[i].color.rgbRed,pcloud_3d[i].color.rgbGreen,pcloud_3d[i].color.rgbBlue);
glVertex3s(pcloud_3d[i].x,pcloud_3d[i].y,pcloud_3d[i].z);
}
}
glColor3ub(0,255,0);
if(pcloud_2d.size()>0){
for(int i = 0; i < pcloud_2d.size(); i++){
glVertex3s(pcloud_2d[i].x,0,pcloud_2d[i].z);
}
}
glEnd();
pcloud_3d.resize(0);
pcloud_2d.resize(0);
}
void testApp::drawAxes(float size) {
ofPushMatrix();
ofScale(size, size, size);
ofPushStyle();
ofSetLineWidth(2.0);
ofSetColor(255, 0, 0);
glBegin(GL_LINES);
glVertex3s(0, 0, 0);
glVertex3s(1, 0, 0);
glEnd();
ofSetColor(0, 255, 0);
glBegin(GL_LINES);
glVertex3s(0, 0, 0);
glVertex3s(0, 1, 0);
glEnd();
ofSetColor(0, 0, 255);
glBegin(GL_LINES);
glVertex3s(0, 0, 0);
glVertex3s(0, 0, 1);
glEnd();
ofPopStyle();
ofPopMatrix();
}
// The display callback function. Draws squares of color.
void Color_Display() {
glClear(GL_COLOR_BUFFER_BIT);
// Part is a logical unit of the window's size
auto Part = Color_Window_Size/33.0;
// Draw four quadrants in the window
for(auto n1 = 0; n1 < 4; ++n1) {
// This switch handles the quadrant translations
switch(n1) {
case 0:
glTranslated(Part, Part, 0);
break;
case 1:
glTranslated(Part*17, Part, 0);
break;
case 2:
glTranslated(Part, 17*Part, 0);
break;
case 3:
glTranslated(17*Part, 17*Part, 0);
break;
default:
break;
}
// For each column
for(auto n2=0; n2<4; n2++) {
glTranslated(4*n2*Part, 0, 0);
// For each row
for(auto n3=0; n3<4; n3++) {
glTranslated(0, 4*n3*Part, 0);
// If this is the old color, draw a white box
// around it to let the user know which one it
// is
if(static_cast<int>(Window_Color->Get_Red()*3)==n1 &&
static_cast<int>(Window_Color->Get_Green()*3)==n2 &&
static_cast<int>(Window_Color->Get_Blue()*3)==n3) {
glColor3d(.8, .8, .8);
glLineWidth(2);
glBegin(GL_LINE_STRIP); {
glVertex3d( -Part/2, -Part/2, 0);
glVertex3d(7*Part/2, -Part/2, 0);
glVertex3d(7*Part/2, 7*Part/2, 0);
glVertex3d( -Part/2, 7*Part/2, 0);
glVertex3d( -Part/2, -Part/2, 0);
} glEnd();
}
// Draw the color, based on where we are
glColor3d(n1/3.0, n2/3.0, n3/3.0);
glBegin(GL_QUADS); {
glVertex3s(0, 0, 0);
glVertex3s(3*Part, 0, 0);
glVertex3s(3*Part, 3*Part, 0);
glVertex3s(0, 3*Part, 0);
} glEnd();
// Move back
glTranslated(0, -4*n3*Part, 0);
}
// Move back
glTranslated(-4*n2*Part, 0, 0);
}
// Move back for the last time
switch(n1) {
case 0:
glTranslated(-Part, -Part, 0);
break;
case 1:
glTranslated(-17*Part, -Part, 0);
break;
case 2:
glTranslated(-Part, -17*Part, 0);
break;
case 3:
glTranslated(-17*Part, -17*Part, 0);
break;
default:
break;
}
}
// Draw everything
glutSwapBuffers();
}
void testApp::boxOutline(ofxPoint3f min, ofxPoint3f max) {
ofPushMatrix();
ofTranslate(min.x, min.y, min.z);
ofScale(max.x - min.x, max.y - min.y, max.z - min.z);
glBegin(GL_LINES);
// back
glVertex3s(0, 0, 0);
glVertex3s(1, 0, 0);
glVertex3s(0, 0, 0);
glVertex3s(0, 1, 0);
glVertex3s(1, 1, 0);
glVertex3s(1, 0, 0);
glVertex3s(1, 1, 0);
glVertex3s(0, 1, 0);
// front
glVertex3s(0, 0, 1);
glVertex3s(1, 0, 1);
glVertex3s(0, 0, 1);
glVertex3s(0, 1, 1);
glVertex3s(1, 1, 1);
glVertex3s(1, 0, 1);
glVertex3s(1, 1, 1);
glVertex3s(0, 1, 1);
// extrusion
glVertex3s(0, 0, 0);
glVertex3s(0, 0, 1);
glVertex3s(0, 1, 0);
glVertex3s(0, 1, 1);
glVertex3s(1, 0, 0);
glVertex3s(1, 0, 1);
glVertex3s(1, 1, 0);
glVertex3s(1, 1, 1);
glEnd();
ofPopMatrix();
}
/////////////////////////////////////////////////////////
// Render
//
void GEMglVertex3s :: render(GemState *state) {
glVertex3s (x, y, z);
}
void Draw(float a[8][3]) { //Display the Figure
int i;
glColor3f (0.1, 0.7, 0.7);
glBegin(GL_POLYGON);
glVertex3f(a[0][0],a[0][1],a[0][2]);
glVertex3f(a[1][0],a[1][1],a[1][2]);
glVertex3f(a[2][0],a[2][1],a[2][2]);
glVertex3f(a[3][0],a[3][1],a[3][2]);
glEnd();
i=0;
glColor3f (0.8, 0.6, 0.1);
glBegin(GL_POLYGON);
glVertex3s(a[0+i][0],a[0+i][1],a[0+i][2]);
glVertex3s(a[1+i][0],a[1+i][1],a[1+i][2]);
glVertex3s(a[5+i][0],a[5+i][1],a[5+i][2]);
glVertex3s(a[4+i][0],a[4+i][1],a[4+i][2]);
glEnd();
glColor3f (0.8, 0.4, 0.7);
glBegin(GL_POLYGON);
glVertex3f(a[0][0],a[0][1],a[0][2]);
glVertex3f(a[3][0],a[3][1],a[3][2]);
glVertex3f(a[7][0],a[7][1],a[7][2]);
glVertex3f(a[4][0],a[4][1],a[4][2]);
glEnd();
i=1;
glColor3f (0.5, 0.3, 0.3);
glBegin(GL_POLYGON);
glVertex3s(a[0+i][0],a[0+i][1],a[0+i][2]);
glVertex3s(a[1+i][0],a[1+i][1],a[1+i][2]);
glVertex3s(a[5+i][0],a[5+i][1],a[5+i][2]);
glVertex3s(a[4+i][0],a[4+i][1],a[4+i][2]);
glEnd();
i=2;
glColor3f (0.5, 0.9, 0.2);
glBegin(GL_POLYGON);
glVertex3s(a[0+i][0],a[0+i][1],a[0+i][2]);
glVertex3s(a[1+i][0],a[1+i][1],a[1+i][2]);
glVertex3s(a[5+i][0],a[5+i][1],a[5+i][2]);
glVertex3s(a[4+i][0],a[4+i][1],a[4+i][2]);
glEnd();
i=4;
glColor3f (0.7, 0.1, 0.4);
glBegin(GL_POLYGON);
glVertex3f(a[0+i][0],a[0+i][1],a[0+i][2]);
glVertex3f(a[1+i][0],a[1+i][1],a[1+i][2]);
glVertex3f(a[2+i][0],a[2+i][1],a[2+i][2]);
glVertex3f(a[3+i][0],a[3+i][1],a[3+i][2]);
glEnd();
}
inline void glVertex( const GLdouble & x, const GLdouble & y, const GLdouble & z ) { glVertex3s( x, y, z ); }
inline void glVertex( const GLfloat & x, const GLfloat & y, const GLfloat & z ) { glVertex3s( x, y, z ); }
inline void glVertex( const GLshort & x, const GLshort & y, const GLshort & z ) { glVertex3s( x, y, z ); }
M(void, glVertex3s, jshort x, jshort y, jshort z) {
glVertex3s(x, y, z);
}