Object3D.cpp

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/* *************************************************************************************
        Writer:         Sebastien Bloc
        Copyright:      2003-2004
        eMail:          sebastien.bloc@free.fr
        URL:            http://mignonsoft.free.fr

        This program is free software; you can redistribute it and/or
        modify it under the terms of the GNU General Public License
        as published by the Free Software Foundation; either version 2
        of the License, or (at your option) any later version.

        This program is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.
        http://www.gnu.org/copyleft/gpl.html
************************************************************************************* */

#include "3d.h"
#include "material.h"
#include "object3d.h"

#include "controlEngine.h"
extern ControlEngine ce;

/* ****************************************************************************
**************************************************************************** */

BOOL Object3D::DrawVectorMinMax(double x,double y,double minIntensity,double maxIntensity)
{
        double intensity = sqrt(x*x+y*y);
        //MyDebug::SendEvent("draw vector","x:%lf y:%lf i:%lf",x,y,intensity);
        
        if (intensity<minIntensity) return FALSE;
        if (intensity>maxIntensity) 
        {
                double angle=atan2(y,-x);
                x=cos(angle)*maxIntensity;
                y=sin(angle)*maxIntensity;
        }
        DrawVector(x,y);
        return TRUE;
}

void Object3D::DrawVector(double x,double y)
{
        glDisable(GL_TEXTURE_2D);
        //glEnable(GL_BLEND);
        //glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
        double angle=atan2(y,-x)*(180.0/PI);
        double intensity = sqrt(x*x+y*y)/25.0;

        Point3D<double> rotate(0,0,angle);

        Material material;
        material.SetNull();
        //material.SetDS(0,0,1,0.5);
        material.emission.Set(0,0,1);
        material.Use();

        glPushMatrix();
        rotate.glRotated();
        glBegin(GL_POLYGON);
        glVertex2d(0,0);
        glVertex2d(intensity,0);
        glVertex2d(intensity-0.05,-0.05);
        glVertex2d(intensity-0.05,0.05);
        glVertex2d(intensity,0);
        glEnd();
        glPopMatrix();
        //glDisable(GL_BLEND);
}

void Object3D::DrawArrow(Color color)
{
        glDisable(GL_BLEND);
        glDisable(GL_TEXTURE_2D);
        Material material;

        material.SetNull();
        material.emission = color;
        material.Use();

        // tracement des regions
        glBegin(GL_POLYGON);
        glVertex2d(0,0);
        glVertex2d(0,-0.2);
        glVertex2d(0.05,-0.15);
        glVertex2d(0.12,-0.3);
        glVertex2d(0.20,-0.22);
        glVertex2d(0.10,-0.10);
        glVertex2d(0.15,-0.06);
        glVertex2d(0,0);
        glEnd();

        // les contours
        material.emission.SetNull();
        material.Use();
        glBegin(GL_LINE_LOOP);
        glVertex2d(0,0);
        glVertex2d(0,-0.2);
        glVertex2d(0.05,-0.15);
        glVertex2d(0.12,-0.3);
        glVertex2d(0.2,-0.22);
        glVertex2d(0.10,-0.10);
        glVertex2d(0.15,-0.06);
        glEnd();
}

// ********************************************************************************

void Object3D::DrawRepere()
{
        glDisable(GL_BLEND);
        glDisable(GL_TEXTURE_2D);

        Material material;
        material.SetNull();
        
        GLUquadric *newQuadric = gluNewQuadric();
        gluQuadricNormals(newQuadric,GLU_NONE); // sinon influ de maniere misterieuse les autre normales
        double size=0.03;
        double baseSize=0.8;
        double arrowSize=0.3;
        double baseArrowSize=0.15;

        glPushMatrix(); // les Z
                material.emission.Set(1,0,0);
                material.Use();
                gluCylinder(newQuadric,size,size,baseSize,3,3);
                glTranslated(0,0,baseSize);
                gluCylinder(newQuadric,baseArrowSize,0,arrowSize,3,3);
                //glTranslated(0,0,0.5);
                //DrawText("Z");
        glPopMatrix();

        glPushMatrix(); // les Y
                material.emission.Set(0,1,0);
                material.Use();
                glRotated(-90,1,0,0);
                gluCylinder(newQuadric,size,size,baseSize,3,3);
                glTranslated(0,0,baseSize);
                gluCylinder(newQuadric,baseArrowSize,0,arrowSize,3,3);
                //glTranslated(0,0,0.5);
                //DrawText("Y");
        glPopMatrix();
        
        glPushMatrix(); // les X
                material.emission.Set(0,0,1);
                material.Use();
                glRotated(90,0,1,0);
                gluCylinder(newQuadric,size,size,baseSize,3,3); 
                glTranslated(0,0,baseSize);
                gluCylinder(newQuadric,baseArrowSize,0,arrowSize,3,3);
                //glTranslated(0,0,0.5);
                //DrawText("X");
        glPopMatrix();

        gluDeleteQuadric(newQuadric);
        
        material.emission.SetNull();
        material.Use();
}

// ********************************************************************************

void Object3D::DrawText(char *text)
{
        //ce.fontTexture->Render(text);

        wglUseFontBitmaps (hDC, 0, 256, 1000); 
        glListBase (1000); 
        glRasterPos3d(0,0,0);
        glCallLists ((int)strlen(text),GL_BYTE,text); 
        glDeleteLists(1000,1);
}

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