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added axis display on trackball pan 

When the trackball is panned, axes are rendered in the trackball sphere
This commit is contained in:
Marco Callieri 2016-11-21 17:07:40 +01:00
parent f4feeb5d5b
commit 84c99ef920
2 changed files with 65 additions and 4 deletions
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3
wrap/gui/trackmode.cpp
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@ -95,7 +95,8 @@ void PanMode::Apply (Trackball * tb, Point3f new_point)
}
void PanMode::Draw(Trackball * tb){
DrawSphereIcon(tb,true );
DrawSphereIcon(tb,true);
DrawSphereAxis(tb);
DrawUglyPanMode(tb);
}

66
wrap/gui/trackutils.h
View File

@ -707,15 +707,15 @@ void DrawSphereIcon (Trackball * tb, bool active, bool planeshandle=false)
glRotatef (90, 1, 0, 0);
col[0] = .40f; col[1] = .85f; col[2] = .40f;
glMaterialfv (GL_FRONT_AND_BACK, GL_DIFFUSE, col);
DrawCircle(planeshandle);
DrawCircle(planeshandle);
glRotatef (90, 0, 1, 0);
col[0] = .85f; col[1] = .40f; col[2] = .40f;
glMaterialfv (GL_FRONT_AND_BACK, GL_DIFFUSE, col);
DrawCircle(planeshandle);
glPopMatrix ();
glPopAttrib ();
glPopMatrix();
glPopAttrib();
}
// TEMPORARY drawing section
@ -832,6 +832,66 @@ void DrawUglyScaleMode(Trackball * tb)
DrawUglyLetter(tb,ugly_s);
}
/*!
@brief function to draw X,Y and Z axis in the trackball sphere.
Draws the three colored axis inside the trackball sphere. added to better see the trackball center when panning
@param tb the manipulator.
*/
void DrawSphereAxis(Trackball * tb)
{
glPushAttrib(GL_TRANSFORM_BIT | GL_DEPTH_BUFFER_BIT | GL_ENABLE_BIT | GL_LINE_BIT | GL_CURRENT_BIT | GL_LIGHTING_BIT);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glDepthMask(GL_FALSE);
Point3f center = tb->center + tb->track.InverseMatrix()*Point3f(0, 0, 0);
glTranslate(center);
glScale(tb->radius / tb->track.sca);
float amb[4] = { .35f, .35f, .35f, 1.0f };
float col[4] = { .5f, .5f, .8f, 1.0f };
glEnable(GL_LINE_SMOOTH);
glLineWidth(DH.LineWidthMoving);
glDisable(GL_COLOR_MATERIAL); // has to be disabled, it is used by wrapper to draw meshes, and prevent direct material setting, used here
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor(DH.color);
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, amb);
col[0] = 1.0f; col[1] = 0.0f; col[2] = 0.0f;
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, col);
glBegin(GL_LINES);
glNormal3d(-1.0, 0.0, 0.0);
glVertex3d(-1.2, 0.0, 0.0);
glNormal3d( 1.0, 0.0, 0.0);
glVertex3d( 1.2, 0.0, 0.0);
glEnd();
col[0] = 0.0f; col[1] = 1.0f; col[2] = 0.0f;
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, col);
glBegin(GL_LINES);
glNormal3d(0.0,-1.0, 0.0);
glVertex3d(0.0,-1.2, 0.0);
glNormal3d(0.0, 1.0, 0.0);
glVertex3d(0.0, 1.2, 0.0);
glEnd();
col[0] = 0.0f; col[1] = 0.0f; col[2] = 1.0f;
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, col);
glBegin(GL_LINES);
glNormal3d(0.0, 0.0,-1.0);
glVertex3d(0.0, 0.0,-1.2);
glNormal3d(0.0, 0.0, 1.0);
glVertex3d(0.0, 0.0, 1.2);
glEnd();
glPopMatrix();
glPopAttrib();
}
/*!
@brief AxisMode drawing function, member of the \e DrawUgly series.