66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
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#include "Axis3DModel.h"
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CAxis3DModel::CAxis3DModel(void) : m_pd3dDevice( NULL )
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{
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}
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CAxis3DModel::~CAxis3DModel(void)
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{
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}
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void CAxis3DModel::Initialize( LPDIRECT3DDEVICE9 pd3dDevice )
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{
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m_pd3dDevice = pd3dDevice;
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}
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int CAxis3DModel::CreateCone( VERTEX_FORMAT **pVertex, DWORD dwColor, float fRadius, float fLength, int nSegment, int nAxis, float fAxisPos )
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{
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*pVertex = new VERTEX_FORMAT[ ( nSegment + 1 ) * 2 ];
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int nRadianOffset = 360 / (nSegment-1);
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EtVector3 vPos;
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switch( nAxis ) {
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case 0:
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vPos = EtVector3( fAxisPos + fLength, 0, 0 );
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break;
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case 1:
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vPos = EtVector3( 0, fAxisPos + fLength, 0 );
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break;
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case 2:
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vPos = EtVector3( 0, 0, fAxisPos + fLength );
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break;
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}
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if( nAxis > 2 ) (*pVertex)[0].vPos = -vPos;
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else (*pVertex)[0].vPos = vPos;
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(*pVertex)[0].dwColor = dwColor;
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for( int i=0; i<nSegment; i++ ) {
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switch( nAxis ) {
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case 0:
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vPos.x = fAxisPos;
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vPos.y = cos( ( nRadianOffset * i ) / 180.f * 3.1415926f ) * fRadius;
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vPos.z = sin( ( nRadianOffset * i ) / 180.f * 3.1415926f ) * fRadius;
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break;
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case 1:
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vPos.x = cos( ( nRadianOffset * i ) / 180.f * 3.1415926f ) * fRadius;
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vPos.y = fAxisPos;
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vPos.z = sin( ( nRadianOffset * i ) / 180.f * 3.1415926f ) * fRadius;
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break;
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case 2:
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vPos.x = cos( ( nRadianOffset * i ) / 180.f * 3.1415926f ) * fRadius;
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vPos.y = sin( ( nRadianOffset * i ) / 180.f * 3.1415926f ) * fRadius;
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vPos.z = fAxisPos;
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break;
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}
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if( nAxis > 2 )
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(*pVertex)[1+i].vPos = -vPos;
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else
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(*pVertex)[1+i].vPos = vPos;
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(*pVertex)[1+i].dwColor = dwColor;
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}
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return ( nSegment - 1 );
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}
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