pointArray_toX3D3()

static size_t pointArray_toX3D3 ( POINTARRAY *  pa, char *  buf, int  precision, int  opts, int  is_closed  )

static

In X3D3, coordinates are separated by a space separator.

Only output the point if it is not the last point of a closed object or it is a non-closed type

Only output the point if it is not the last point of a closed object or it is a non-closed type

Definition at line 840 of file lwout_x3d.c.

References POINTARRAY::flags, FLAGS_GET_Z, getPoint2d_p(), getPoint4d_p(), LW_X3D_FLIP_XY, POINTARRAY::npoints, OUT_MAX_DIGS_DOUBLE, OUT_MAX_DOUBLE, OUT_MAX_DOUBLE_PRECISION, trim_trailing_zeros(), pixval::x, POINT2D::x, POINT4D::x, pixval::y, POINT2D::y, POINT4D::y, and POINT4D::z.

Referenced by asx3d3_line_buf(), asx3d3_line_coords(), asx3d3_point_buf(), asx3d3_poly_buf(), and asx3d3_triangle_buf().

{
        int i;
        char *ptr;
        char x[OUT_MAX_DIGS_DOUBLE+OUT_MAX_DOUBLE_PRECISION+1];
        char y[OUT_MAX_DIGS_DOUBLE+OUT_MAX_DOUBLE_PRECISION+1];
        char z[OUT_MAX_DIGS_DOUBLE+OUT_MAX_DOUBLE_PRECISION+1];

        ptr = output;

        if ( ! FLAGS_GET_Z(pa->flags) )
        {
                for (i=0; i<pa->npoints; i++)
                {
                        if ( !is_closed || i < (pa->npoints - 1) )
                        {
                                POINT2D pt;
                                getPoint2d_p(pa, i, &pt);

                                if (fabs(pt.x) < OUT_MAX_DOUBLE)
                                        sprintf(x, "%.*f", precision, pt.x);
                                else
                                        sprintf(x, "%g", pt.x);
                                trim_trailing_zeros(x);

                                if (fabs(pt.y) < OUT_MAX_DOUBLE)
                                        sprintf(y, "%.*f", precision, pt.y);
                                else
                                        sprintf(y, "%g", pt.y);
                                trim_trailing_zeros(y);

                                if ( i )
                                        ptr += sprintf(ptr, " ");

                                if ( ( opts & LW_X3D_FLIP_XY) )
                                        ptr += sprintf(ptr, "%s %s", y, x);
                                else
                                        ptr += sprintf(ptr, "%s %s", x, y);
                        }
                }
        }
        else
        {
                for (i=0; i<pa->npoints; i++)
                {
                        if ( !is_closed || i < (pa->npoints - 1) )
                        {
                                POINT4D pt;
                                getPoint4d_p(pa, i, &pt);

                                if (fabs(pt.x) < OUT_MAX_DOUBLE)
                                        sprintf(x, "%.*f", precision, pt.x);
                                else
                                        sprintf(x, "%g", pt.x);
                                trim_trailing_zeros(x);

                                if (fabs(pt.y) < OUT_MAX_DOUBLE)
                                        sprintf(y, "%.*f", precision, pt.y);
                                else
                                        sprintf(y, "%g", pt.y);
                                trim_trailing_zeros(y);

                                if (fabs(pt.z) < OUT_MAX_DOUBLE)
                                        sprintf(z, "%.*f", precision, pt.z);
                                else
                                        sprintf(z, "%g", pt.z);
                                trim_trailing_zeros(z);

                                if ( i )
                                        ptr += sprintf(ptr, " ");

                                if ( ( opts & LW_X3D_FLIP_XY) )
                                        ptr += sprintf(ptr, "%s %s %s", y, x, z);
                                else
                                        ptr += sprintf(ptr, "%s %s %s", x, y, z);
                        }
                }
        }

        return ptr-output;
}

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