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Merge commit '5fe0c3e3768b481137a3f90f5ad342d039130c6a' into ThreeJS

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This commit is contained in:
riccardo.elitropi
2022-09-21 08:19:01 +02:00
parent 8e986740fa 5fe0c3e376
commit f22863bff6
6 changed files with 124 additions and 174 deletions
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SceneGrid.cpp
+52 -26
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@@ -15,6 +15,7 @@
#include "stdafx.h"
#include "Scene.h"
#include "EGrUtils.h"
#include "/EgtDev/Include/EgtNumUtils.h"
#include <algorithm>
using namespace std ;
@@ -35,8 +36,8 @@ Scene::SetGridGeo( double dSnapStep, int nMinLineSstep, int nMajLineSstep, int n
const double MIN_SNAP_STEP = 0.1 ;
m_dSnapStep = max( abs( dSnapStep), MIN_SNAP_STEP) ;
m_nMinLineSstep = abs( nMinLineSstep) ;
m_nMajLineSstep = abs( nMajLineSstep) ;
m_nExtSstep = abs( nExtSstep) ;
m_nMajLineSstep = max( abs( nMajLineSstep), m_nMinLineSstep) ;
m_nExtSstep = max( abs( nExtSstep), m_nMajLineSstep) ;
return true ;
}
@@ -49,6 +50,26 @@ Scene::SetGridColor( Color colMinLine, Color colMajLine)
return true ;
}
//----------------------------------------------------------------------------
static int
GetSpecialCoeff( double dVal)
{
if ( dVal < 1.99)
return 1 ;
else if ( dVal < 4.99)
return 2 ;
else if ( dVal < 9.99)
return 5 ;
else if ( dVal < 24.99)
return 10 ;
else if ( dVal < 49.99)
return 25 ;
else if ( dVal < 99.99)
return 50 ;
else
return 100 ;
}
//----------------------------------------------------------------------------
bool
Scene::DrawGrid( void)
@@ -73,35 +94,40 @@ Scene::DrawGrid( void)
// se richiesto, disegno la griglia
if ( m_bShowGrid) {
// disegno linee minori (a trattini)
glLineStipple( 2, 0xAAAA) ;
glEnable( GL_LINE_STIPPLE) ;
glBegin( GL_LINES) ;
glColor3f( m_colMinLine.GetRed(), m_colMinLine.GetGreen(), m_colMinLine.GetBlue()) ;
for ( int i = m_nMinLineSstep ; i <= m_nExtSstep ; i += m_nMinLineSstep) {
// se non si sovrappongono alle maggiori
if ( ( i % m_nMajLineSstep) != 0) {
float dPos = float( i * m_dSnapStep) ;
// X +
glVertex3f( dPos, - dExt, Z_DOWN) ;
glVertex3f( dPos, dExt, Z_DOWN) ;
// X -
glVertex3f( - dPos, - dExt, Z_DOWN) ;
glVertex3f( - dPos, dExt, Z_DOWN) ;
// Y +
glVertex3f( - dExt, dPos, Z_DOWN) ;
glVertex3f( dExt, dPos, Z_DOWN) ;
// Y -
glVertex3f( - dExt, - dPos, Z_DOWN) ;
glVertex3f( dExt, - dPos, Z_DOWN) ;
// disegno linee minori (a trattini), se non troppe
double dMinRapp = min( m_dHalfWidth, m_dHalfHeight) / ( m_dSnapStep * m_nMinLineSstep) ;
if ( dMinRapp < 60) {
glLineStipple( 2, 0xAAAA) ;
glEnable( GL_LINE_STIPPLE) ;
glBegin( GL_LINES) ;
glColor3f( m_colMinLine.GetRed(), m_colMinLine.GetGreen(), m_colMinLine.GetBlue()) ;
for ( int i = m_nMinLineSstep ; i <= m_nExtSstep ; i += m_nMinLineSstep) {
// se non si sovrappongono alle maggiori
if ( ( i % m_nMajLineSstep) != 0) {
float dPos = float( i * m_dSnapStep) ;
// X +
glVertex3f( dPos, - dExt, Z_DOWN) ;
glVertex3f( dPos, dExt, Z_DOWN) ;
// X -
glVertex3f( - dPos, - dExt, Z_DOWN) ;
glVertex3f( - dPos, dExt, Z_DOWN) ;
// Y +
glVertex3f( - dExt, dPos, Z_DOWN) ;
glVertex3f( dExt, dPos, Z_DOWN) ;
// Y -
glVertex3f( - dExt, - dPos, Z_DOWN) ;
glVertex3f( dExt, - dPos, Z_DOWN) ;
}
}
glEnd() ;
glDisable( GL_LINE_STIPPLE) ;
}
glEnd() ;
glDisable( GL_LINE_STIPPLE) ;
// disegno linee maggiori
double dMaxRapp = min( m_dHalfWidth, m_dHalfHeight) / ( m_dSnapStep * m_nMajLineSstep) ;
int nCoeff = GetSpecialCoeff( 0.06 * dMaxRapp) ;
glBegin( GL_LINES) ;
glColor3f( m_colMajLine.GetRed(), m_colMajLine.GetGreen(), m_colMajLine.GetBlue()) ;
for ( int i = m_nMajLineSstep ; i <= m_nExtSstep ; i += m_nMajLineSstep) {
for ( int i = min( nCoeff * m_nMajLineSstep, m_nExtSstep) ; i <= m_nExtSstep ; i += nCoeff * m_nMajLineSstep) {
float dPos = float( i * m_dSnapStep) ;
// X +
glVertex3f( dPos, - dExt, Z_DOWN) ;