Calculix Data Visualiser using QT

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Posted by Ann on Stack Overflow See other posts from Stack Overflow or by Ann
Published on 2010-03-13T09:46:36Z Indexed on 2010/03/13 9:55 UTC
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I am doing a project on CalculiX data visualizor,using Qt.I 've to draw the structure and after giving force the displacement should be shawn as variation in color.I chose HSV coloring,but while executing I got an error message:"QColor::from Hsv:HSV parameters out of range".The code is:

DataViz1::DataViz1(QWidget *parent) : QWidget(parent), ui(new Ui::DataViz1) { DArea = new QGLScreen(this); DArea->setGeometry(QRect(10,10,700,600)); //TODO This values are feeded by user dfile="/home/41407/color.txt";//input file with displacement mfile="/home/41407/mesh21.txt";//input file nodeId="*NODE"; elId="*ELEMENT"; DataId="displ";

parseMfile();
parseDfile();
DArea->Nodes=Nodes;
DArea->Elements=Elements;
DArea->Data=Data;
DArea->fillColorArray();
//printf("Colr is %d",DArea->pickColor(-11.02,0));fflush(stdout);

ui->setupUi(this);

}

DataViz1::~DataViz1() { delete ui; } void DataViz1::parseMfile() { QFile file(mfile); if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) return; int node_end=0; QTextStream in(&file); in.skipWhiteSpace(); while (!in.atEnd()) { QString line = in.readLine(); if(line.startsWith(nodeId))//Node block in Mfile { while(1) { line = in.readLine(); if(line.startsWith(elId)) { break; } Nodes< 

             while(1)
             {
                    line = in.readLine();
                    Elements<<line;
                    //printf("Element is %s\n",line.toLocal8Bit().constData());fflush(stdout);
                    if(in.atEnd()) break;

            }
         }
     }

}

void DataViz1::parseDfile() { QFile file(dfile); if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) return; int node_end=0; QTextStream in(&file); in.skipWhiteSpace(); while (!in.atEnd()) { QString line = in.readLine(); if(line.startsWith(DataId)) { continue; } line = in.readLine(); Data<

}

/......................................................................../

include "qglscreen.h"

include

GLfloat LightAmbient[]= { 0.5f, 0.5f, 0.5f, 1.0f }; GLfloat LightDiffuse[]= { 1.0f, 1.0f, 1.0f, 1.0f }; GLfloat LightPosition[]= { 0.0f, 0.0f, 2.0f, 1.0f };

QGLScreen::QGLScreen(QWidget *parent):QGLWidget(QGLFormat(QGL::SampleBuffers), parent) { clearColor = Qt::black; xRot = 0; yRot = 0; zRot = 0;

ifdef QT_OPENGL_ES_2

program = 0;

endif

//TODO user input

ElType="HE8";
DType="SolidFrame";
axis="X";

}

QGLScreen::~QGLScreen() {

}

QSize QGLScreen::minimumSizeHint() const { return QSize(50, 50); }

QSize QGLScreen::sizeHint() const { return QSize(200, 200); }

void QGLScreen::setClearColor(const QColor &color) { clearColor = color; updateGL(); } void QGLScreen::initializeGL() {

  xRot=0;
  yRot=0;
  zRot=0;
  scaling = 1.0;
/*  select clearing (background) color       */
    glClearColor (0.0, 0.0, 0.0, 0.0);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
  //  glViewport(0,0,10,10);
    glOrtho(-10.0, +10.0, -10.0, +10.0, -10.0,+10.0);
    glEnable (GL_LINE_SMOOTH);
    glHint (GL_LINE_SMOOTH_HINT, GL_DONT_CARE);

} void QGLScreen::wheel1() { scaling1 += .0025; count2++; update(); } void QGLScreen::wheel2() { if(count2>-14) { scaling1 -= .0025; count2--; update(); } } void QGLScreen::drawModel(int x1,int y1,int x2,int y2) {

makeCurrent();

QStringList Cnode,Celement;

for (int i = 0; i < Elements.size(); ++i)
{
    Celement=Elements.at(i).split(",");
   // printf("Element is %s",Celement.at(0).toLocal8Bit().constData());fflush(stdout);
    //printf("Node at el is %s\n",(findNode(Celement.at(1).toInt())).at(1).toLocal8Bit().constData());
    fflush(stdout);
    if(ElType=="HE8")
    {
        //First four nodes
        float ENX1=(findNode(Celement.at(1).toInt())).at(1).toDouble();
        float ENX2=(findNode(Celement.at(2).toInt())).at(1).toDouble();
        float ENX3=(findNode(Celement.at(3).toInt())).at(1).toDouble();
        float ENX4=(findNode(Celement.at(4).toInt())).at(1).toDouble();
        float ENY1=(findNode(Celement.at(1).toInt())).at(2).toDouble();
        float ENY2=(findNode(Celement.at(2).toInt())).at(2).toDouble();
        float ENY3=(findNode(Celement.at(3).toInt())).at(2).toDouble();
        float ENY4=(findNode(Celement.at(4).toInt())).at(2).toDouble();
        float ENZ1=(findNode(Celement.at(1).toInt())).at(3).toDouble();
        float ENZ2=(findNode(Celement.at(2).toInt())).at(3).toDouble();
        float ENZ3=(findNode(Celement.at(3).toInt())).at(3).toDouble();
        float ENZ4=(findNode(Celement.at(4).toInt())).at(3).toDouble();
        //Second four Nodes
        float ENX5=(findNode(Celement.at(5).toInt())).at(1).toDouble();
        float ENX6=(findNode(Celement.at(6).toInt())).at(1).toDouble();
        float ENX7=(findNode(Celement.at(7).toInt())).at(1).toDouble();
        float ENX8=(findNode(Celement.at(8).toInt())).at(1).toDouble();
        float ENY5=(findNode(Celement.at(5).toInt())).at(2).toDouble();
        float ENY6=(findNode(Celement.at(6).toInt())).at(2).toDouble();
        float ENY7=(findNode(Celement.at(7).toInt())).at(2).toDouble();
        float ENY8=(findNode(Celement.at(8).toInt())).at(2).toDouble();
        float ENZ5=(findNode(Celement.at(5).toInt())).at(3).toDouble();
        float ENZ6=(findNode(Celement.at(6).toInt())).at(3).toDouble();
        float ENZ7=(findNode(Celement.at(7).toInt())).at(3).toDouble();
        float ENZ8=(findNode(Celement.at(8).toInt())).at(3).toDouble();

        //Identify Colors
        GLfloat ENC[8][3];
        for(int k=1;k<8;k++)
        {
            int hsv=pickColor(findData(Celement.at(k).toInt()).toDouble(),0);
            //printf("hsv is %d=",hsv);fflush(stdout);
            getRGB(hsv);
            //printf("%d*%d*%d\n",red,green,blue);
            //ENC[k]={red,green,blue};
             ENC[k][0]=red;
             ENC[k][1]=green;
              ENC[k][2]=blue;
        }





        //Plot the first four direct loop

        if(DType=="WireFrame"){
            glBegin(GL_LINE_LOOP);
            glColor3f(255,0,0);
            glVertex3f(ENX1,ENY1,ENZ1);
            glColor3f(255,0,0);
            glVertex3f(ENX2,ENY2,ENZ2);
            glColor3f(255,0,0);
            glVertex3f(ENX3,ENY3,ENZ3);
            glColor3f(255,0,0);
            glVertex3f(ENX4,ENY4,ENZ4);
            glEnd();

            //Plot the second four direct loop
            glBegin(GL_LINE_LOOP);
            glColor3f(0,0,255);
            glVertex3f(ENX5,ENY5,ENZ5);
            glColor3f(0,0,255);
            glVertex3f(ENX6,ENY6,ENZ6);
            glColor3f(0,0,255);
            glVertex3f(ENX7,ENY7,ENZ7);
            glColor3f(0,0,255);
            glVertex3f(ENX8,ENY8,ENZ8);
            glEnd();

            //Plot the interconnections

            glBegin(GL_LINE);
            glColor3f(150,150,150);
            glVertex3f(ENX1,ENY1,ENZ1);
            glVertex3f(ENX5,ENY5,ENZ5);
            glEnd();

            glBegin(GL_LINE);
            glColor3f(150,150,150);
            glVertex3f(ENX2,ENY2,ENZ2);
            glVertex3f(ENX6,ENY6,ENZ6);
            glEnd();

            glBegin(GL_LINE);
            glColor3f(150,150,150);
            glVertex3f(ENX3,ENY3,ENZ3);
            glVertex3f(ENX7,ENY7,ENZ7);
            glEnd();

            glBegin(GL_LINE);
            glColor3f(150,150,150);
            glVertex3f(ENX4,ENY4,ENZ4);
            glVertex3f(ENX8,ENY8,ENZ8);
            glEnd();
        }



        if(DType=="SolidFrame")
        {
            glBegin(GL_QUADS);
            glColor3fv(ENC[1]);
            glVertex3f(ENX1,ENY1,ENZ1);
            glColor3fv(ENC[2]);
            glVertex3f(ENX2,ENY2,ENZ2);
            glColor3fv(ENC[3]);
            glVertex3f(ENX3,ENY3,ENZ3);
            glColor3fv(ENC[4]);
            glVertex3f(ENX4,ENY4,ENZ4);
            glEnd();

//break; glBegin(GL_QUADS); glColor3fv(ENC[5]); glVertex3f(ENX5,ENY5,ENZ5); glColor3fv(ENC[6]); glVertex3f(ENX6,ENY6,ENZ6); glColor3fv(ENC[7]); glVertex3f(ENX7,ENY7,ENZ7); glColor3fv(ENC[8]); glVertex3f(ENX8,ENY8,ENZ8); glEnd();

            glBegin(GL_QUAD_STRIP);
            glColor3fv(ENC[1]);
            glVertex3f(ENX1,ENY1,ENZ1);
            glColor3fv(ENC[5]);
            glVertex3f(ENX5,ENY5,ENZ5);
            glColor3fv(ENC[2]);
            glVertex3f(ENX2,ENY2,ENZ2);
            glColor3fv(ENC[6]);
            glVertex3f(ENX6,ENY6,ENZ6);
            glEnd();

            glBegin(GL_QUAD_STRIP);
            glColor3fv(ENC[3]);
            glVertex3f(ENX3,ENY3,ENZ3);
            glColor3fv(ENC[7]);
            glVertex3f(ENX7,ENY7,ENZ7);
            glColor3fv(ENC[4]);
            glVertex3f(ENX4,ENY4,ENZ4);
            glColor3fv(ENC[8]);
            glVertex3f(ENX8,ENY8,ENZ8);
            glEnd();


            glBegin(GL_QUAD_STRIP);
            glColor3fv(ENC[2]);
            glVertex3f(ENX2,ENY2,ENZ2);
            glColor3fv(ENC[6]);
            glVertex3f(ENX6,ENY6,ENZ6);
            glColor3fv(ENC[3]);
            glVertex3f(ENX3,ENY3,ENZ3);
            glColor3fv(ENC[7]);
            glVertex3f(ENX7,ENY7,ENZ7);

            glEnd();

            glBegin(GL_QUAD_STRIP);
            glColor3fv(ENC[1]);
            glVertex3f(ENX1,ENY1,ENZ1);
            glColor3fv(ENC[5]);
            glVertex3f(ENX5,ENY5,ENZ5);
            glColor3fv(ENC[4]);
            glVertex3f(ENX4,ENY4,ENZ4);
            glColor3fv(ENC[8]);
            glVertex3f(ENX8,ENY8,ENZ8);

            glEnd();









        }



    }


}

} QStringList QGLScreen::findNode(int element)

{ QStringList Temp; for (int i = 0; i < Nodes.size(); ++i) {

    Temp=Nodes.at(i).split(",");
    if(Temp.at(0).toInt()==element)
    {
        break;

    }

}
return Temp;

} QString QGLScreen::findData(int Node) { QString Temp; QRegExp sep("\s+"); for (int i = 0; i < Data.size(); ++i) { if((Data.at(i).split("\t")).at(0).section(sep,1,1).toInt()==Node) { if(axis=="X") { Temp=Data.at(i).split("\t").at(0).section(sep,2,2); } if(axis=="Y") { Temp=Data.at(i).split("\t").at(0).section(sep,3,3); } if(axis=="Z") { Temp=Data.at(i).split("\t").at(0).section(sep,4,4); } break; }

 }
return Temp;

}

void QGLScreen::fillColorArray() {

QString Temp1,Temp2,Temp3;
double d1s=0,d2s=0,d3s=0,d1l=0,d2l=0,d3l=0,diff=0;
QRegExp sep("\\s+");
for (int i = 0; i < Data.size(); ++i)
{
     Temp1=(Data.at(i).split("\t")).at(0).section(sep,2,2);
     if(d1s>Temp1.toDouble())
     {
         d1s=Temp1.toDouble();

     }
    if(d1l<Temp1.toDouble())
     {
        d1l=Temp1.toDouble();
    }

    Temp2=(Data.at(i).split("\t")).at(0).section(sep,3,3);
    if(d2s>Temp2.toDouble())
    {
        d2s=Temp2.toDouble();

    }
   if(d2l<Temp2.toDouble())
    {
       d2l=Temp2.toDouble();
   }
   Temp3=(Data.at(i).split("\t")).at(0).section(sep,4,4);
   if(d3s>Temp3.toDouble())
   {
       d3s=Temp3.toDouble();

   }
  if(d3l<Temp3.toDouble())
   {
      d3l=Temp3.toDouble();
   }

    // printf("data is %s",Temp.toLocal8Bit().constData());fflush(stdout);
 }
 color[0][0]=d1l;
for(int i=1;i<360;i++)
{

    //printf("Large is%f small is %f",d1l,d1s);
    diff=d1l-d1s;
    if(d1l==0&&d1s<0)
        color[0][i]=color[0][i-1]-diff/360;
    else if(d1l>0&&d1s==0)
       color[0][i]=color[0][i-1]+diff/360;
    else if(d1l>0&&d1s<0)
        color[0][i]=color[0][i-1]-diff/360;

    diff=d2l-d2s;
    if(d2l==0&&d2s<0)
        color[1][i]=color[1][i-1]-diff/360;
    else if(d2l>0&&d2s==0)
       color[1][i]=color[1][i-1]+diff/360;
    else if(d2l>0&&d2s<0)
        color[1][i]=color[1][i-1]-diff/360;

    diff=d3l-d3s;
    if(d3l==0&&d3s<0)
        color[2][i]=color[2][i-1]-diff/360;
    else if(d3l>0&&d3s==0)
       color[2][i]=color[2][i-1]+diff/360;
    else if(d3l>0&&d3s<0)
        color[2][i]=color[2][i-1]-diff/360;
}
//for(int i=0;i<360;i++) printf("%d %f %f %f\n",i,color[0][i],color[1][i],color[2][i]);

} int QGLScreen::pickColor(double data,int Did) { int i,pos; if(axis=="X")Did=0; if(axis=="Y")Did=1; if(axis=="Z")Did=2; //printf("%f data is",data);fflush(stdout); for(int i=0;i<360;i++) {

    if(color[Did][i]<data  &&  data>color[Did][i+1])
    {
        //printf("Orginal dat is %f  Data found is   %f and pos %d\n",data,color[Did][i],i);fflush(stdout);
        pos=i;
        break;
    }


}
return pos;

} void QGLScreen::getRGB(int hsv) {

QColor c;

c.setHsv(hsv,255,255,255); QColor r=QColor::fromHsv(hsv,255,255); red=r.red(); green=r.green(); blue=r.blue();

}

void QGLScreen::paintGL() {

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushAttrib(GL_ALL_ATTRIB_BITS);

          glMatrixMode(GL_PROJECTION);
          glPushMatrix();
          glLoadIdentity();
          GLfloat x = 3.0 * GLfloat(width()) / height();
          glOrtho(-x, +x, -3.0, +3.0, 4.0, 15.0);

          glMatrixMode(GL_MODELVIEW);
          glPushMatrix();
          glLoadIdentity();

          glTranslatef(0.0, 0.0, -10.0);
          glScalef(scaling, scaling, scaling);

          glRotatef(xRot, 1.0, 0.0, 0.0);
          glRotatef(yRot, 0.0, 1.0, 0.0);
          glRotatef(zRot, 0.0, 0.0, 1.0);
         drawModel(0,0,1,1);

/*  don't wait!
 *  start processing buffered OpenGL routines
 */
 glFlush ();

} /void QGLScreen::zoom1() { scaling+=.05; update(); }/

void QGLScreen::resizeGL(int width, int height) {

int side = qMin(width, height);
    glViewport((width - side) / 2, (height - side) / 2, side, side);

#if !defined(QT_OPENGL_ES_2)
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
#ifndef QT_OPENGL_ES
    glOrtho(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0);
#else
    glOrthof(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0);
#endif
    glMatrixMode(GL_MODELVIEW);
#endif

} void QGLScreen::mousePressEvent(QMouseEvent *event) { lastPos = event->pos(); }

void QGLScreen::mouseMoveEvent(QMouseEvent *event) {

GLfloat dx = GLfloat(event->x() - lastPos.x()) / width();
GLfloat dy = GLfloat(event->y() - lastPos.y()) / height();

    if (event->buttons() & Qt::LeftButton) {
        xRot+= 180 * dy;
        yRot += 180 * dx;
       update();
    } else if (event->buttons() & Qt::RightButton) {
        xRot += 180 * dy;
        yRot += 180 * dx;
        update();
    }
    lastPos = event->pos();

}

void QGLScreen::mouseReleaseEvent(QMouseEvent * /* event */) { emit clicked(); }

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