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C++ FLAGS_GET_M函数代码示例

本文整理汇总了C++中FLAGS_GET_M函数的典型用法代码示例。如果您正苦于以下问题：C++ FLAGS_GET_M函数的具体用法？C++ FLAGS_GET_M怎么用？C++ FLAGS_GET_M使用的例子？那么, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了FLAGS_GET_M函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: lwline_from_gserialized_buffer

static LWLINE* lwline_from_gserialized_buffer(uint8_t *data_ptr, uint8_t g_flags, size_t *g_size)
{
	uint8_t *start_ptr = data_ptr;
	LWLINE *line;
	uint32_t npoints = 0;

	assert(data_ptr);

	line = (LWLINE*)lwalloc(sizeof(LWLINE));
	line->srid = SRID_UNKNOWN; /* Default */
	line->bbox = NULL;
	line->type = LINETYPE;
	line->flags = g_flags;

	data_ptr += 4; /* Skip past the type. */
	npoints = lw_get_uint32_t(data_ptr); /* Zero => empty geometry */
	data_ptr += 4; /* Skip past the npoints. */

	if ( npoints > 0 )
		line->points = ptarray_construct_reference_data(FLAGS_GET_Z(g_flags), FLAGS_GET_M(g_flags), npoints, data_ptr);
		
	else
		line->points = ptarray_construct(FLAGS_GET_Z(g_flags), FLAGS_GET_M(g_flags), 0); /* Empty linestring */

	data_ptr += FLAGS_NDIMS(g_flags) * npoints * sizeof(double);

	if ( g_size )
		*g_size = data_ptr - start_ptr;

	return line;
}
开发者ID:NianYue，项目名称:pipelinedb，代码行数:31，代码来源:g_serialized.c

示例2: lwcircstring_from_gserialized_buffer

static LWCIRCSTRING* lwcircstring_from_gserialized_buffer(uint8_t *data_ptr, uint8_t g_flags, size_t *g_size)
{
	uint8_t *start_ptr = data_ptr;
	LWCIRCSTRING *circstring;
	uint32_t npoints = 0;

	assert(data_ptr);

	circstring = (LWCIRCSTRING*)lwalloc(sizeof(LWCIRCSTRING));
	circstring->srid = SRID_UNKNOWN; /* Default */
	circstring->bbox = NULL;
	circstring->type = CIRCSTRINGTYPE;
	circstring->flags = g_flags;

	data_ptr += 4; /* Skip past the circstringtype. */
	npoints = lw_get_uint32_t(data_ptr); /* Zero => empty geometry */
	data_ptr += 4; /* Skip past the npoints. */

	if ( npoints > 0 )
		circstring->points = ptarray_construct_reference_data(FLAGS_GET_Z(g_flags), FLAGS_GET_M(g_flags), npoints, data_ptr);		
	else
		circstring->points = ptarray_construct(FLAGS_GET_Z(g_flags), FLAGS_GET_M(g_flags), 0); /* Empty circularstring */

	data_ptr += FLAGS_NDIMS(g_flags) * npoints * sizeof(double);

	if ( g_size )
		*g_size = data_ptr - start_ptr;

	return circstring;
}
开发者ID:NianYue，项目名称:pipelinedb，代码行数:30，代码来源:g_serialized.c

示例3: gbox_to_string

char* gbox_to_string(const GBOX *gbox)
{
	static int sz = 128;
	char *str = NULL;

	if ( ! gbox )
		return strdup("NULL POINTER");

	str = (char*)lwalloc(sz);

	if ( FLAGS_GET_GEODETIC(gbox->flags) )
	{
		snprintf(str, sz, "GBOX((%.8g,%.8g,%.8g),(%.8g,%.8g,%.8g))", gbox->xmin, gbox->ymin, gbox->zmin, gbox->xmax, gbox->ymax, gbox->zmax);
		return str;
	}
	if ( FLAGS_GET_Z(gbox->flags) && FLAGS_GET_M(gbox->flags) )
	{
		snprintf(str, sz, "GBOX((%.8g,%.8g,%.8g,%.8g),(%.8g,%.8g,%.8g,%.8g))", gbox->xmin, gbox->ymin, gbox->zmin, gbox->mmin, gbox->xmax, gbox->ymax, gbox->zmax, gbox->mmax);
		return str;
	}
	if ( FLAGS_GET_Z(gbox->flags) )
	{
		snprintf(str, sz, "GBOX((%.8g,%.8g,%.8g),(%.8g,%.8g,%.8g))", gbox->xmin, gbox->ymin, gbox->zmin, gbox->xmax, gbox->ymax, gbox->zmax);
		return str;
	}
	if ( FLAGS_GET_M(gbox->flags) )
	{
		snprintf(str, sz, "GBOX((%.8g,%.8g,%.8g),(%.8g,%.8g,%.8g))", gbox->xmin, gbox->ymin, gbox->mmin, gbox->xmax, gbox->ymax, gbox->mmax);
		return str;
	}
	snprintf(str, sz, "GBOX((%.8g,%.8g),(%.8g,%.8g))", gbox->xmin, gbox->ymin, gbox->xmax, gbox->ymax);
	return str;
}
开发者ID:Vlczech，项目名称:vtapi，代码行数:33，代码来源:g_box.c

示例4: gbox_overlaps

int gbox_overlaps(const GBOX *g1, const GBOX *g2)
{

	/* Make sure our boxes are consistent */
	if ( FLAGS_GET_GEODETIC(g1->flags) != FLAGS_GET_GEODETIC(g2->flags) )
		lwerror("gbox_overlaps: cannot compare geodetic and non-geodetic boxes");

	/* Check X/Y first */
	if ( g1->xmax < g2->xmin || g1->ymax < g2->ymin ||
	     g1->xmin > g2->xmax || g1->ymin > g2->ymax )
		return LW_FALSE;
		
	/* If both geodetic or both have Z, check Z */
	if ( (FLAGS_GET_Z(g1->flags) && FLAGS_GET_Z(g2->flags)) || 
	     (FLAGS_GET_GEODETIC(g1->flags) && FLAGS_GET_GEODETIC(g2->flags)) )
	{
		if ( g1->zmax < g2->zmin || g1->zmin > g2->zmax )
			return LW_FALSE;
	}
	
	/* If both have M, check M */
	if ( FLAGS_GET_M(g1->flags) && FLAGS_GET_M(g2->flags) )
	{
		if ( g1->mmax < g2->mmin || g1->mmin > g2->mmax )
			return LW_FALSE;
	}
	
	return LW_TRUE;
}
开发者ID:netconstructor，项目名称:postgis-1，代码行数:29，代码来源:g_box.c

示例5: lwpoint_from_gserialized_buffer

static LWPOINT* lwpoint_from_gserialized_buffer(uint8_t *data_ptr, uint8_t g_flags, size_t *g_size)
{
	uint8_t *start_ptr = data_ptr;
	LWPOINT *point;
	uint32_t npoints = 0;

	assert(data_ptr);

	point = (LWPOINT*)lwalloc(sizeof(LWPOINT));
	point->srid = SRID_UNKNOWN; /* Default */
	point->bbox = NULL;
	point->type = POINTTYPE;
	point->flags = g_flags;

	data_ptr += 4; /* Skip past the type. */
	npoints = lw_get_uint32_t(data_ptr); /* Zero => empty geometry */
	data_ptr += 4; /* Skip past the npoints. */

	if ( npoints > 0 )
		point->point = ptarray_construct_reference_data(FLAGS_GET_Z(g_flags), FLAGS_GET_M(g_flags), 1, data_ptr);
	else
		point->point = ptarray_construct(FLAGS_GET_Z(g_flags), FLAGS_GET_M(g_flags), 0); /* Empty point */

	data_ptr += npoints * FLAGS_NDIMS(g_flags) * sizeof(double);

	if ( g_size )
		*g_size = data_ptr - start_ptr;

	return point;
}
开发者ID:NianYue，项目名称:pipelinedb，代码行数:30，代码来源:g_serialized.c

示例6: LWGEOM_m_point

Datum LWGEOM_m_point(PG_FUNCTION_ARGS)
{
	GSERIALIZED *geom;
	LWPOINT *point = NULL;
	LWGEOM *lwgeom;
	POINT3DM p;

	geom = (GSERIALIZED *)PG_DETOAST_DATUM(PG_GETARG_DATUM(0));

	if ( gserialized_get_type(geom) != POINTTYPE )
		lwerror("Argument to M() must be a point");

	lwgeom = lwgeom_from_gserialized(geom);
	point = lwgeom_as_lwpoint(lwgeom);
	
	if ( lwgeom_is_empty(lwgeom) )
		PG_RETURN_NULL();

	/* no M in input */
	if ( ! FLAGS_GET_M(point->flags) ) PG_RETURN_NULL();

	getPoint3dm_p(point->point, 0, &p);

	PG_FREE_IF_COPY(geom, 0);

	PG_RETURN_FLOAT8(p.m);
}
开发者ID:gravitystorm，项目名称:postgis，代码行数:27，代码来源:lwgeom_ogc.c

示例7: ptarray_merge

/**
 * @brief Merge two given POINTARRAY and returns a pointer
 * on the new aggregate one.
 * Warning: this function free the two inputs POINTARRAY
 * @return #POINTARRAY is newly allocated
 */
POINTARRAY *
ptarray_merge(POINTARRAY *pa1, POINTARRAY *pa2)
{
	POINTARRAY *pa;
	size_t ptsize = ptarray_point_size(pa1);

	if (FLAGS_GET_ZM(pa1->flags) != FLAGS_GET_ZM(pa2->flags))
		lwerror("ptarray_cat: Mixed dimension");

	pa = ptarray_construct( FLAGS_GET_Z(pa1->flags),
	                        FLAGS_GET_M(pa1->flags),
	                        pa1->npoints + pa2->npoints);

	memcpy(         getPoint_internal(pa, 0),
	                getPoint_internal(pa1, 0),
	                ptsize*(pa1->npoints));

	memcpy(         getPoint_internal(pa, pa1->npoints),
	                getPoint_internal(pa2, 0),
	                ptsize*(pa2->npoints));

	lwfree(pa1);
	lwfree(pa2);

	return pa;
}
开发者ID:TesseractG，项目名称:lwgeom，代码行数:32，代码来源:ptarray.c

示例8: lwcircstring_calculate_gbox_cartesian

static int lwcircstring_calculate_gbox_cartesian(LWCIRCSTRING *curve, GBOX *gbox)
{
	uint8_t flags = gflags(FLAGS_GET_Z(curve->flags), FLAGS_GET_M(curve->flags), 0);
	GBOX tmp;
	POINT4D p1, p2, p3;
	int i;

	if ( ! curve ) return LW_FAILURE;
	if ( curve->points->npoints < 3 ) return LW_FAILURE;

	tmp.flags = flags;

	/* Initialize */
	gbox->xmin = gbox->ymin = gbox->zmin = gbox->mmin = MAXFLOAT;
	gbox->xmax = gbox->ymax = gbox->zmax = gbox->mmax = -1 * MAXFLOAT;

	for ( i = 2; i < curve->points->npoints; i += 2 )
	{
		getPoint4d_p(curve->points, i-2, &p1);
		getPoint4d_p(curve->points, i-1, &p2);
		getPoint4d_p(curve->points, i, &p3);

		if (lw_arc_calculate_gbox_cartesian(&p1, &p2, &p3, &tmp) == LW_FAILURE)
			continue;

		gbox_merge(&tmp, gbox);
	}

	return LW_SUCCESS;
}
开发者ID:ahinz，项目名称:postgis，代码行数:30，代码来源:g_box.c

示例9: wkt_parser_point_new

/**
* Create a new point. Null point array implies empty. Null dimensionality
* implies no specified dimensionality in the WKT.
*/
LWGEOM* wkt_parser_point_new(POINTARRAY *pa, char *dimensionality)
{
	uint8_t flags = wkt_dimensionality(dimensionality);
	LWDEBUG(4,"entered");
	
	/* No pointarray means it is empty */
	if( ! pa )
		return lwpoint_as_lwgeom(lwpoint_construct_empty(SRID_UNKNOWN, FLAGS_GET_Z(flags), FLAGS_GET_M(flags)));

	/* If the number of dimensions is not consistent, we have a problem. */
	if( wkt_pointarray_dimensionality(pa, flags) == LW_FALSE )
	{
		ptarray_free(pa);
		SET_PARSER_ERROR(PARSER_ERROR_MIXDIMS);
		return NULL;
	}

	/* Only one point allowed in our point array! */	
	if( pa->npoints != 1 )
	{
		ptarray_free(pa);
		SET_PARSER_ERROR(PARSER_ERROR_LESSPOINTS);
		return NULL;
	}		

	return lwpoint_as_lwgeom(lwpoint_construct(SRID_UNKNOWN, NULL, pa));
}
开发者ID:bnordgren，项目名称:postgis，代码行数:31，代码来源:lwin_wkt.c

示例10: wkt_parser_polygon_finalize

LWGEOM* wkt_parser_polygon_finalize(LWGEOM *poly, char *dimensionality)
{
	uint8_t flags = wkt_dimensionality(dimensionality);
	int flagdims = FLAGS_NDIMS(flags);
	LWDEBUG(4,"entered");
	
	/* Null input implies empty return */
	if( ! poly )
		return lwpoly_as_lwgeom(lwpoly_construct_empty(SRID_UNKNOWN, FLAGS_GET_Z(flags), FLAGS_GET_M(flags)));

	/* If the number of dimensions are not consistent, we have a problem. */
	if( flagdims > 2 )
	{
		if ( flagdims != FLAGS_NDIMS(poly->flags) )
		{
			lwgeom_free(poly);
			SET_PARSER_ERROR(PARSER_ERROR_MIXDIMS);
			return NULL;
		}
	
		/* Harmonize the flags in the sub-components with the wkt flags */
		if( LW_FAILURE == wkt_parser_set_dims(poly, flags) )
		{
			lwgeom_free(poly);
			SET_PARSER_ERROR(PARSER_ERROR_OTHER);
			return NULL;
		}
	}
	
	return poly;
}
开发者ID:bnordgren，项目名称:postgis，代码行数:31，代码来源:lwin_wkt.c

示例11: wkt_pointarray_dimensionality

/**
* Read the dimensionality from a flag, if provided. Then check that the
* dimensionality matches that of the pointarray. If the dimension counts
* match, ensure the pointarray is using the right "Z" or "M".
*/
static int wkt_pointarray_dimensionality(POINTARRAY *pa, uint8_t flags)
{	
	int hasz = FLAGS_GET_Z(flags);
	int hasm = FLAGS_GET_M(flags);
	int ndims = 2 + hasz + hasm;

	/* No dimensionality or array means we go with what we have */
	if( ! (flags && pa) )
		return LW_TRUE;
		
	LWDEBUGF(5,"dimensionality ndims == %d", ndims);
	LWDEBUGF(5,"FLAGS_NDIMS(pa->flags) == %d", FLAGS_NDIMS(pa->flags));
	
	/* 
	* ndims > 2 implies that the flags have something useful to add,
	* that there is a 'Z' or an 'M' or both.
	*/
	if( ndims > 2 )
	{
		/* Mismatch implies a problem */
		if ( FLAGS_NDIMS(pa->flags) != ndims )
			return LW_FALSE;
		/* Match means use the explicit dimensionality */
		else
		{
			FLAGS_SET_Z(pa->flags, hasz);
			FLAGS_SET_M(pa->flags, hasm);
		}
	}

	return LW_TRUE;
}
开发者ID:bnordgren，项目名称:postgis，代码行数:37，代码来源:lwin_wkt.c

示例12: ptarray_append_point

int
ptarray_append_point(POINTARRAY *pa, const POINT4D *pt, int repeated_points)
{

	/* Check for pathology */
	if( ! pa || ! pt ) 
	{
		lwerror("ptarray_append_point: null input");
		return LW_FAILURE;
	}

	/* Check for duplicate end point */
	if ( repeated_points == LW_FALSE && pa->npoints > 0 )
	{
		POINT4D tmp;
		getPoint4d_p(pa, pa->npoints-1, &tmp);
		LWDEBUGF(4,"checking for duplicate end point (pt = POINT(%g %g) pa->npoints-q = POINT(%g %g))",pt->x,pt->y,tmp.x,tmp.y);

		/* Return LW_SUCCESS and do nothing else if previous point in list is equal to this one */
		if ( (pt->x == tmp.x) && (pt->y == tmp.y) &&
		     (FLAGS_GET_Z(pa->flags) ? pt->z == tmp.z : 1) &&
		     (FLAGS_GET_M(pa->flags) ? pt->m == tmp.m : 1) )
		{
			return LW_SUCCESS;
		}
	}

	/* Append is just a special case of insert */
	return ptarray_insert_point(pa, pt, pa->npoints);
}
开发者ID:TesseractG，项目名称:lwgeom，代码行数:30，代码来源:ptarray.c

示例13: gbox_is_valid

int gbox_is_valid(const GBOX *gbox)
{
	/* X */
	if ( ! isfinite(gbox->xmin) || isnan(gbox->xmin) ||
	     ! isfinite(gbox->xmax) || isnan(gbox->xmax) )
		return LW_FALSE;
		
	/* Y */
	if ( ! isfinite(gbox->ymin) || isnan(gbox->ymin) ||
	     ! isfinite(gbox->ymax) || isnan(gbox->ymax) )
		return LW_FALSE;
		
	/* Z */
	if ( FLAGS_GET_GEODETIC(gbox->flags) || FLAGS_GET_Z(gbox->flags) )
	{
		if ( ! isfinite(gbox->zmin) || isnan(gbox->zmin) ||
		     ! isfinite(gbox->zmax) || isnan(gbox->zmax) )
			return LW_FALSE;
	}

	/* M */
	if ( FLAGS_GET_M(gbox->flags) )
	{
		if ( ! isfinite(gbox->mmin) || isnan(gbox->mmin) ||
		     ! isfinite(gbox->mmax) || isnan(gbox->mmax) )
			return LW_FALSE;
	}
	
	return LW_TRUE;		
}
开发者ID:ahinz，项目名称:postgis，代码行数:30，代码来源:g_box.c

示例14: gbox_merge

int gbox_merge(const GBOX *new_box, GBOX *merge_box)
{
	assert(merge_box);

	if ( FLAGS_GET_ZM(merge_box->flags) != FLAGS_GET_ZM(new_box->flags) )
		return LW_FAILURE;

	if ( new_box->xmin < merge_box->xmin) merge_box->xmin = new_box->xmin;
	if ( new_box->ymin < merge_box->ymin) merge_box->ymin = new_box->ymin;
	if ( new_box->xmax > merge_box->xmax) merge_box->xmax = new_box->xmax;
	if ( new_box->ymax > merge_box->ymax) merge_box->ymax = new_box->ymax;

	if ( FLAGS_GET_Z(merge_box->flags) || FLAGS_GET_GEODETIC(merge_box->flags) )
	{
		if ( new_box->zmin < merge_box->zmin) merge_box->zmin = new_box->zmin;
		if ( new_box->zmax > merge_box->zmax) merge_box->zmax = new_box->zmax;
	}
	if ( FLAGS_GET_M(merge_box->flags) )
	{
		if ( new_box->mmin < merge_box->mmin) merge_box->mmin = new_box->mmin;
		if ( new_box->mmax > merge_box->mmax) merge_box->mmax = new_box->mmax;
	}

	return LW_SUCCESS;
}
开发者ID:ahinz，项目名称:postgis，代码行数:25，代码来源:g_box.c

示例15: wkt_parser_linestring_new

/**
* Create a new linestring. Null point array implies empty. Null dimensionality
* implies no specified dimensionality in the WKT. Check for numpoints >= 2 if
* requested.
*/
LWGEOM* wkt_parser_linestring_new(POINTARRAY *pa, char *dimensionality)
{
	uint8_t flags = wkt_dimensionality(dimensionality);
	LWDEBUG(4,"entered");

	/* No pointarray means it is empty */
	if( ! pa )
		return lwline_as_lwgeom(lwline_construct_empty(SRID_UNKNOWN, FLAGS_GET_Z(flags), FLAGS_GET_M(flags)));

	/* If the number of dimensions is not consistent, we have a problem. */
	if( wkt_pointarray_dimensionality(pa, flags) == LW_FALSE )
	{
		ptarray_free(pa);
		SET_PARSER_ERROR(PARSER_ERROR_MIXDIMS);
		return NULL;
	}
	
	/* Apply check for not enough points, if requested. */	
	if( (global_parser_result.parser_check_flags & LW_PARSER_CHECK_MINPOINTS) && (pa->npoints < 2) )
	{
		ptarray_free(pa);
		SET_PARSER_ERROR(PARSER_ERROR_MOREPOINTS);
		return NULL;
	}

	return lwline_as_lwgeom(lwline_construct(SRID_UNKNOWN, NULL, pa));
}
开发者ID:bnordgren，项目名称:postgis，代码行数:32，代码来源:lwin_wkt.c


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