kicad/3d-viewer/3d_read_mesh.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name: 3d_read_mesh.cpp
/////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation
#pragma interface
#endif
#include "fctsys.h"
#include "common.h"
#include "macros.h"
#include "3d_struct.h"
#include "3d_viewer.h"
/***********************************/
int Struct3D_Master:: ReadData(void)
/************************************/
{
char line[1024], *text;
wxString fullfilename;
FILE * file;
int LineNum = 0;
if ( m_Shape3DName.IsEmpty() )
{
return 1;
}
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if ( wxIsAbsolutePath(m_Shape3DName) ) fullfilename.Empty();
else fullfilename = g_RealLibDirBuffer + LIB3D_PATH;
fullfilename += m_Shape3DName;
#if defined (__WINDOWS__)
fullfilename.Replace(UNIX_STRING_DIR_SEP,WIN_STRING_DIR_SEP);
#else
#if defined (__UNIX__)
fullfilename.Replace(WIN_STRING_DIR_SEP,UNIX_STRING_DIR_SEP);
#endif
#endif
file = wxFopen( fullfilename, wxT("rt") );
if ( file == NULL )
{
return -1;
}
// Switch the locale to standard C (needed to print floating point numbers like 1.3)
setlocale(LC_NUMERIC, "C");
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while ( GetLine(file, line, &LineNum, 512) )
{
text = strtok(line, " \t\n\r");
if ( stricmp (text, "DEF" ) == 0 )
{
while ( GetLine(file, line, &LineNum, 512) )
{
text = strtok(line, " \t\n\r");
if ( text == NULL ) continue;
if ( * text == '}' ) break;
if ( stricmp (text, "children") == 0 )
{
ReadChildren(file, &LineNum);
}
}
}
}
fclose (file);
setlocale(LC_NUMERIC, ""); // revert to the current locale
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return 0;
}
/*********************************************************/
int Struct3D_Master:: ReadMaterial(FILE * file, int *LineNum)
/*********************************************************/
/*
analyse la description du type:
material DEF yellow Material {
diffuseColor 1.00000 1.00000 0.00000e+0
emissiveColor 0.00000e+0 0.00000e+0 0.00000e+0
specularColor 1.00000 1.00000 1.00000
ambientIntensity 1.00000
transparency 0.00000e+0
shininess 1.00000
}
ou du type:
material USE yellow
*/
{
char line[512], * text, * command;
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wxString mat_name;
S3D_Material * material = NULL;
// Lecture de la commande:
command = strtok(NULL, " \t\n\r");
text = strtok(NULL, " \t\n\r");
mat_name = CONV_FROM_UTF8(text);
if ( stricmp(command, "USE") == 0 )
{
for ( material = m_Materials; material != NULL;
material = (S3D_Material *) material->Pnext)
{
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if ( material->m_Name == mat_name)
{
material->SetMaterial();
return 1;
}
}
printf("ReadMaterial error: material not found\n");
return 0;
}
if ( stricmp(command, "DEF") == 0 )
{
material = new S3D_Material(this, mat_name);
material->Pnext = m_Materials;
m_Materials = material;
while ( GetLine(file, line, LineNum, 512) )
{
text = strtok(line," \t\n\r");
if ( text == NULL ) continue;
if ( text[0] == '}' )
{
material->SetMaterial();
return 0;
}
if ( stricmp (text, "diffuseColor") == 0 )
{
text = strtok(NULL," \t\n\r");
material->m_DiffuseColor.x = atof(text);
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text = strtok(NULL," \t\n\r");
material->m_DiffuseColor.y = atof(text);
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text = strtok(NULL," \t\n\r");
material->m_DiffuseColor.z = atof(text);
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}
else if ( stricmp (text, "emissiveColor") == 0 )
{
text = strtok(NULL," \t\n\r");
material->m_EmissiveColor.x = atof(text);
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text = strtok(NULL," \t\n\r");
material->m_EmissiveColor.y = atof(text);
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text = strtok(NULL," \t\n\r");
material->m_EmissiveColor.z = atof(text);
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}
else if ( strnicmp (text, "specularColor", 13 ) == 0 )
{
text = strtok(NULL," \t\n\r");
material->m_SpecularColor.x = atof(text);
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text = strtok(NULL," \t\n\r");
material->m_SpecularColor.y = atof(text);
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text = strtok(NULL," \t\n\r");
material->m_SpecularColor.z = atof(text);
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}
else if ( strnicmp (text, "ambientIntensity", 16 ) == 0 )
{
text = strtok(NULL," \t\n\r");
material->m_AmbientIntensity = atof(text);
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}
else if ( strnicmp (text, "transparency", 12 ) == 0 )
{
text = strtok(NULL," \t\n\r");
material->m_Transparency = atof(text);
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}
else if ( strnicmp (text, "shininess", 9 ) == 0 )
{
text = strtok(NULL," \t\n\r");
material->m_Shininess = atof(text);
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}
}
}
return -1;
}
/**********************************************************/
int Struct3D_Master::ReadChildren(FILE * file, int *LineNum)
/***********************************************************/
{
char line[1024], *text;
while ( GetLine(file, line, LineNum, 512) )
{
text = strtok(line, " \t\n\r");
if ( * text == ']' ) return 0;
if ( * text == ',' ) continue;
if ( stricmp (text, "Shape" ) == 0 )
{
ReadShape(file, LineNum);
}
else
{
printf ("ReadChildren error line %d <%s> \n", *LineNum, text);
break;
}
}
return 1;
}
/********************************************************/
int Struct3D_Master::ReadShape(FILE * file, int *LineNum)
/********************************************************/
{
char line[1024], *text;
int err = 1;
while ( GetLine(file, line, LineNum, 512) )
{
text = strtok(line, " \t\n\r");
if ( * text == '}' )
{
err = 0;
break;
}
if ( stricmp (text, "appearance" ) == 0 )
{
ReadAppearance(file, LineNum);
}
else if ( stricmp (text, "geometry" ) == 0 )
{
ReadGeometry(file, LineNum);
}
else
{
printf ("ReadShape error line %d <%s> \n", *LineNum, text);
break;
}
}
return err;
}
/*************************************************************/
int Struct3D_Master::ReadAppearance(FILE * file, int *LineNum)
/*************************************************************/
{
char line[1024], *text;
int err = 1;
while ( GetLine(file, line, LineNum, 512) )
{
text = strtok(line, " \t\n\r");
if ( * text == '}' )
{
err = 0; break;
}
if ( stricmp (text, "material" ) == 0 )
{
ReadMaterial(file, LineNum );
}
else
{
printf ("ReadAppearance error line %d <%s> \n", *LineNum, text);
break;
}
}
return err;
}
#define BUFSIZE 2000
/************************************************************************************/
double * ReadCoordsList(FILE * file, char * text_buffer, int * bufsize, int *LineNum)
/************************************************************************************/
/* Read a coordinate liste like:
coord Coordinate { point [
-5.24489 6.57640e-3 -9.42129e-2,
-5.11821 6.57421e-3 0.542654,
-3.45868 0.256565 1.32000 ] }
or:
normal Normal { vector [
0.995171 -6.08102e-6 9.81541e-2,
0.923880 -4.09802e-6 0.382683,
0.707107 -9.38186e-7 0.707107]
}
Return the coordinate list
text_buffer contains the first line of this node :
"coord Coordinate { point ["
*/
{
double * data_list = NULL;
unsigned int ii = 0, jj = 0, nn = BUFSIZE;
char * text;
bool HasData = FALSE;
bool StartData = FALSE;
bool EndData = FALSE;
bool EndNode = FALSE;
char string_num[512];
text = text_buffer;
while ( !EndNode )
{
if ( * text == 0 ) // Needs data !
{
text = text_buffer;
GetLine(file, text_buffer, LineNum, 512);
}
while ( !EndNode && *text )
{
switch ( *text )
{
case '[':
StartData = TRUE;
jj = 0; string_num[jj] = 0;
data_list = (double *) MyZMalloc(nn * sizeof(double) );
break;
case '}':
EndNode = TRUE;
break;
case ']':
case '\t':
case ' ':
case ',':
jj = 0;
if ( ! StartData || !HasData) break;
data_list[ii] = atof(string_num);
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string_num[jj] = 0;
ii++;
if ( ii >= nn )
{
nn *= 2;
data_list = (double *) realloc(data_list, (nn * sizeof(double)) );
}
HasData = FALSE;
if ( *text == ']' )
{
StartData = FALSE;
EndData = TRUE;
}
break;
default:
if ( ! StartData ) break;
if ( jj >= sizeof(string_num) ) break;
string_num[jj] = *text;
jj++; string_num[jj] = 0;
HasData = TRUE;
break;
}
text++;
}
}
if ( data_list )
data_list = (double *) realloc(data_list, (ii * sizeof(double)) );
if ( bufsize ) *bufsize = ii;
return data_list;
}
/***********************************************************/
int Struct3D_Master::ReadGeometry(FILE * file, int *LineNum)
/***********************************************************/
{
char line[1024], buffer[1024], *text;
int err = 1;
int nn = BUFSIZE;
double * points = NULL;
int * index = NULL;
while ( GetLine(file, line, LineNum, 512) )
{
strcpy(buffer,line);
text = strtok(buffer, " \t\n\r");
if ( * text == '}' )
{
err = 0; break;
}
if ( stricmp (text, "normalPerVertex" ) == 0 )
{
text = strtok(NULL, " ,\t\n\r");
if( stricmp (text, "TRUE") == 0 )
{
}
else
{
}
continue;
}
if ( stricmp (text, "colorPerVertex" ) == 0 )
{
text = strtok(NULL, " ,\t\n\r");
if( stricmp (text, "TRUE") == 0 )
{
}
else
{
}
continue;
}
if ( stricmp (text, "normal" ) == 0 )
{
int coord_number;
double * buf_points = ReadCoordsList(file, line, &coord_number, LineNum);
continue;
free(buf_points);
continue;
}
if ( stricmp (text, "normalIndex" ) == 0 )
{
while ( GetLine(file, line, LineNum, 512) )
{
text = strtok(line, " ,\t\n\r");
while ( text )
{
if ( *text == ']') break;
text = strtok(NULL, " ,\t\n\r");
}
if ( text && (*text == ']') ) break;
}
continue;
}
if ( stricmp (text, "color" ) == 0 )
{
int coord_number;
double * buf_points = ReadCoordsList(file, line, &coord_number, LineNum);
continue;
free(buf_points);
continue;
}
if ( stricmp (text, "colorIndex" ) == 0 )
{
while ( GetLine(file, line, LineNum, 512) )
{
text = strtok(line, " ,\t\n\r");
while ( text )
{
if ( *text == ']') break;
text = strtok(NULL, " ,\t\n\r");
}
if ( text && (*text == ']') ) break;
}
continue;
}
if ( stricmp (text, "coord" ) == 0 )
{
int coord_number;
points = ReadCoordsList(file, line, &coord_number, LineNum);
}
else if ( stricmp (text, "coordIndex" ) == 0 )
{
index = (int *) MyMalloc(nn * sizeof(int) );
S3D_Vertex * coords =
(S3D_Vertex *) MyMalloc(nn * sizeof(S3D_Vertex) );
while ( GetLine(file, line, LineNum, 512) )
{
int coord_count = 0, jj;
text = strtok(line, " ,\t\n\r");
while ( text )
{
if ( *text == ']') break;
jj = atoi(text);
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if ( jj < 0 )
{
S3D_Vertex * curr_coord = coords;
for ( jj = 0; jj < coord_count; jj ++ )
{
int kk = index[jj] * 3;
curr_coord->x = points[kk];
curr_coord->y = points[kk+1];
curr_coord->z = points[kk+2];
curr_coord++;
}
Set_Object_Coords(coords, coord_count );
Set_Object_Data(coords, coord_count );
coord_count = 0;
}
else
{
index[coord_count++] = jj;
}
text = strtok(NULL, " ,\t\n\r");
}
if ( text && (*text == ']') ) break;
}
free(index);
free(coords);
}
else
{
printf ("ReadGeometry error line %d <%s> \n", *LineNum, text);
break;
}
}
if ( points ) free (points);
return err;
}
/*********************************************************/
int Struct3D_Shape:: ReadData(FILE * file, int *LineNum)
/*********************************************************/
{
char line[512];
while ( GetLine(file, line, LineNum, 512) )
{
}
return -1;
}