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Commit bceb808a authored by Cory Quammen's avatar Cory Quammen
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Change %g format specifier to %.*g with full double precision 

Sometimes we need more decimal digits of precision when converting
double values to ASCII than what is afforded by %g, so use %.*g with
std::numeric_limits<double>::max_digits10 to specify the precision.
parent b1dffbe3
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Showing with 110 additions and 36 deletions
IO/Export/vtkVRMLExporter.cxx
View file @ bceb808a
......@@ -36,6 +36,13 @@
#include "vtkTexture.h"
#include "vtkTransform.h"
#include <limits>
namespace {
// For C format strings
constexpr int max_double_digits = std::numeric_limits<double>::max_digits10;
}
vtkStandardNewMacro(vtkVRMLExporter);
vtkVRMLExporter::vtkVRMLExporter()
......@@ -130,8 +137,11 @@ void vtkVRMLExporter::WriteData()
cam->GetPosition()[1], cam->GetPosition()[2]);
fprintf(fp," description \"Default View\"\n");
tempd = cam->GetOrientationWXYZ();
fprintf(fp," orientation %g %g %g %g\n }\n", tempd[1], tempd[2],
tempd[3], tempd[0]*vtkMath::Pi()/180.0);
fprintf(fp," orientation %.*g %.*g %.*g %.*g\n }\n",
max_double_digits, tempd[1],
max_double_digits, tempd[2],
max_double_digits, tempd[3],
max_double_digits, tempd[0]*vtkMath::Pi()/180.0);
// do the lights first the ambient then the others
fprintf(fp,
......@@ -300,12 +310,21 @@ void vtkVRMLExporter::WriteAnActor(vtkActor *anActor, FILE *fp)
fprintf(fp," Transform {\n");
tempd = trans->GetPosition();
fprintf(fp," translation %g %g %g\n", tempd[0], tempd[1], tempd[2]);
fprintf(fp," translation %.*g %.*g %.*g\n",
max_double_digits, tempd[0],
max_double_digits, tempd[1],
max_double_digits, tempd[2]);
tempd = trans->GetOrientationWXYZ();
fprintf(fp," rotation %g %g %g %g\n", tempd[1], tempd[2],
tempd[3], tempd[0]*vtkMath::Pi()/180.0);
fprintf(fp," rotation %.*g %.*g %.*g %.*g\n",
max_double_digits, tempd[1],
max_double_digits, tempd[2],
max_double_digits, tempd[3],
max_double_digits, tempd[0]*vtkMath::Pi()/180.0);
tempd = trans->GetScale();
fprintf(fp," scale %g %g %g\n", tempd[0], tempd[1], tempd[2]);
fprintf(fp," scale %.*g %.*g %.*g\n",
max_double_digits, tempd[0],
max_double_digits, tempd[1],
max_double_digits, tempd[2]);
fprintf(fp," children [\n");
trans->Delete();
......@@ -488,7 +507,10 @@ void vtkVRMLExporter::WriteAnActor(vtkActor *anActor, FILE *fp)
for (i = 0; i < npts; i++)
{
p = points->GetPoint(indx[i]);
fprintf (fp," %g %g %g,\n", p[0], p[1], p[2]);
fprintf (fp," %.*g %.*g %.*g,\n",
max_double_digits, p[0],
max_double_digits, p[1],
max_double_digits, p[2]);
}
}
fprintf(fp," ]\n");
......@@ -503,8 +525,10 @@ void vtkVRMLExporter::WriteAnActor(vtkActor *anActor, FILE *fp)
for (i = 0; i < npts; i++)
{
c = colors->GetPointer(4*indx[i]);
fprintf (fp," %g %g %g,\n", c[0]/255.0, c[1]/255.0,
c[2]/255.0);
fprintf (fp," %.*g %.*g %.*g,\n",
max_double_digits, c[0]/255.0,
max_double_digits, c[1]/255.0,
max_double_digits, c[2]/255.0);
}
}
fprintf(fp," ]\n");
......@@ -533,7 +557,8 @@ void vtkVRMLExporter::WriteShapeBegin( vtkActor* actor, FILE *fileP,
// write out the material properties to the mat file
fprintf(fileP," appearance Appearance {\n");
fprintf(fileP," material Material {\n");
fprintf(fileP," ambientIntensity %g\n", props->GetAmbient());
fprintf(fileP," ambientIntensity %.*g\n",
max_double_digits, props->GetAmbient());
// if we don't have colors and we have only lines & points
// use emissive to color them
if (!(pntData->GetNormals() || color || polyData->GetNumberOfPolys() ||
......@@ -541,19 +566,27 @@ void vtkVRMLExporter::WriteShapeBegin( vtkActor* actor, FILE *fileP,
{
tempf2 = props->GetAmbient();
tempd = props->GetAmbientColor();
fprintf(fileP," emissiveColor %g %g %g\n",
tempd[0]*tempf2, tempd[1]*tempf2, tempd[2]*tempf2);
fprintf(fileP," emissiveColor %.*g %.*g %.*g\n",
max_double_digits, tempd[0]*tempf2,
max_double_digits, tempd[1]*tempf2,
max_double_digits, tempd[2]*tempf2);
}
tempf2 = props->GetDiffuse();
tempd = props->GetDiffuseColor();
fprintf(fileP," diffuseColor %g %g %g\n",
tempd[0]*tempf2, tempd[1]*tempf2, tempd[2]*tempf2);
fprintf(fileP," diffuseColor %.*g %.*g %.*g\n",
max_double_digits, tempd[0]*tempf2,
max_double_digits, tempd[1]*tempf2,
max_double_digits, tempd[2]*tempf2);
tempf2 = props->GetSpecular();
tempd = props->GetSpecularColor();
fprintf(fileP," specularColor %g %g %g\n",
tempd[0]*tempf2, tempd[1]*tempf2, tempd[2]*tempf2);
fprintf(fileP," shininess %g\n",props->GetSpecularPower()/128.0);
fprintf(fileP," transparency %g\n",1.0-props->GetOpacity());
fprintf(fileP," specularColor %.*g %.*g %.*g\n",
max_double_digits, tempd[0]*tempf2,
max_double_digits, tempd[1]*tempf2,
max_double_digits, tempd[2]*tempf2);
fprintf(fileP," shininess %.*g\n",
max_double_digits, props->GetSpecularPower()/128.0);
fprintf(fileP," transparency %.*g\n",
max_double_digits, 1.0-props->GetOpacity());
fprintf(fileP," }\n"); // close matrial
// is there a texture map
......@@ -681,7 +714,10 @@ void vtkVRMLExporter::WritePointData(vtkPoints *points, vtkDataArray *normals,
for (i = 0; i < points->GetNumberOfPoints(); i++)
{
p = points->GetPoint(i);
fprintf (fp," %g %g %g,\n", p[0], p[1], p[2]);
fprintf (fp," %.*g %.*g %.*g,\n",
max_double_digits, p[0],
max_double_digits, p[1],
max_double_digits, p[2]);
}
fprintf(fp," ]\n");
fprintf(fp," }\n");
......@@ -694,7 +730,10 @@ void vtkVRMLExporter::WritePointData(vtkPoints *points, vtkDataArray *normals,
for (i = 0; i < normals->GetNumberOfTuples(); i++)
{
p = normals->GetTuple(i);
fprintf (fp," %g %g %g,\n", p[0], p[1], p[2]);
fprintf (fp," %.*g %.*g %.*g,\n",
max_double_digits, p[0],
max_double_digits, p[1],
max_double_digits, p[2]);
}
fprintf(fp," ]\n");
fprintf(fp," }\n");
......@@ -708,7 +747,9 @@ void vtkVRMLExporter::WritePointData(vtkPoints *points, vtkDataArray *normals,
for (i = 0; i < tcoords->GetNumberOfTuples(); i++)
{
p = tcoords->GetTuple(i);
fprintf (fp," %g %g,\n", p[0], p[1]);
fprintf (fp," %.*g %.*g,\n",
max_double_digits, p[0],
max_double_digits, p[1]);
}
fprintf(fp," ]\n");
fprintf(fp," }\n");
......@@ -722,8 +763,10 @@ void vtkVRMLExporter::WritePointData(vtkPoints *points, vtkDataArray *normals,
for (i = 0; i < colors->GetNumberOfTuples(); i++)
{
c = colors->GetPointer(4*i);
fprintf (fp," %g %g %g,\n", c[0]/255.0, c[1]/255.0,
c[2]/255.0);
fprintf (fp," %.*g %.*g %.*g,\n",
max_double_digits, c[0]/255.0,
max_double_digits, c[1]/255.0,
max_double_digits, c[2]/255.0);
}
fprintf(fp," ]\n");
fprintf(fp," }\n");
......
IO/Export/vtkX3DExporterXMLWriter.cxx
View file @ bceb808a
......@@ -24,6 +24,9 @@
#include <sstream>
#include <fstream>
#include <iomanip>
#include <ios>
#include <limits>
#include <string>
#include <cassert>
......@@ -84,6 +87,7 @@ int vtkX3DExporterXMLWriter::OpenFile(const char* file)
else
{
this->OutputStream = fileStream;
*this->OutputStream << std::scientific << std::setprecision(std::numeric_limits<double>::max_digits10);
return 1;
}
}
......@@ -356,4 +360,3 @@ void vtkX3DExporterXMLWriter::SubDepth()
{
this->ActTab.erase(0, 2);
}
IO/Geometry/vtkSTLWriter.cxx
View file @ bceb808a
......@@ -34,6 +34,11 @@
# include <io.h> /* unlink */
#endif
namespace {
// For C format strings
constexpr int max_double_digits = std::numeric_limits<double>::max_digits10;
}
vtkStandardNewMacro(vtkSTLWriter);
vtkCxxSetObjectMacro(vtkSTLWriter, BinaryHeader, vtkUnsignedCharArray);
......@@ -152,11 +157,22 @@ void vtkSTLWriter::WriteAsciiSTL(
vtkTriangle::ComputeNormal(pts, npts, indx, n);
fprintf(fp, " facet normal %.6g %.6g %.6g\n outer loop\n",
n[0], n[1], n[2]);
fprintf(fp, " vertex %.6g %.6g %.6g\n", v1[0], v1[1], v1[2]);
fprintf(fp, " vertex %.6g %.6g %.6g\n", v2[0], v2[1], v2[2]);
fprintf(fp, " vertex %.6g %.6g %.6g\n", v3[0], v3[1], v3[2]);
fprintf(fp, " facet normal %.*g %.*g %.*g\n outer loop\n",
max_double_digits, n[0],
max_double_digits, n[1],
max_double_digits, n[2]);
fprintf(fp, " vertex %.*g %.*g %.*g\n",
max_double_digits, v1[0],
max_double_digits, v1[1],
max_double_digits, v1[2]);
fprintf(fp, " vertex %.*g %.*g %.*g\n",
max_double_digits, v2[0],
max_double_digits, v2[1],
max_double_digits, v2[2]);
fprintf(fp, " vertex %.*g %.*g %.*g\n",
max_double_digits, v3[0],
max_double_digits, v3[1],
max_double_digits, v3[2]);
fprintf(fp, " endloop\n endfacet\n");
}
......@@ -173,11 +189,22 @@ void vtkSTLWriter::WriteAsciiSTL(
vtkTriangle::ComputeNormal(pts, npts, indx, n);
fprintf(fp, " facet normal %.6g %.6g %.6g\n outer loop\n",
n[0], n[1], n[2]);
fprintf(fp, " vertex %.6g %.6g %.6g\n", v1[0], v1[1], v1[2]);
fprintf(fp, " vertex %.6g %.6g %.6g\n", v2[0], v2[1], v2[2]);
fprintf(fp, " vertex %.6g %.6g %.6g\n", v3[0], v3[1], v3[2]);
fprintf(fp, " facet normal %.*g %.*g %.*g\n outer loop\n",
max_double_digits, n[0],
max_double_digits, n[1],
max_double_digits, n[2]);
fprintf(fp, " vertex %.*g %.*g %.*g\n",
max_double_digits, v1[0],
max_double_digits, v1[1],
max_double_digits, v1[2]);
fprintf(fp, " vertex %.*g %.*g %.*g\n",
max_double_digits, v2[0],
max_double_digits, v2[1],
max_double_digits, v2[2]);
fprintf(fp, " vertex %.*g %.*g %.*g\n",
max_double_digits, v3[0],
max_double_digits, v3[1],
max_double_digits, v3[2]);
fprintf(fp, " endloop\n endfacet\n");
}
else if (npts > 3)
......
IO/PLY/vtkPLY.cxx
View file @ bceb808a
......@@ -55,6 +55,7 @@ WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
#include <cstddef>
#include <cstring>
#include <cassert>
#include <limits>
/* memory allocation */
#define myalloc(mem_size) vtkPLY::my_alloc((mem_size), __LINE__, __FILE__)
......@@ -2078,7 +2079,8 @@ void vtkPLY::write_ascii_item(
case PLY_FLOAT32:
case PLY_DOUBLE:
case PLY_FLOAT64:
fprintf (fp, "%g ", double_val);
// Use needed precision.
fprintf (fp, "%.*g ", std::numeric_limits<double>::max_digits10, double_val);
break;
default:
fprintf (stderr, "write_ascii_item: bad type = %d\n", type);
......@@ -2803,4 +2805,3 @@ void *vtkPLY::my_alloc(size_t size, int lnum, const char *fname)
return (ptr);
}
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