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mapogr.cpp
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mapogr.cpp
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/**********************************************************************
* $Id$
*
* Project: MapServer
* Purpose: OGR Link
* Author: Daniel Morissette, DM Solutions Group ([email protected])
* Frank Warmerdam ([email protected])
*
**********************************************************************
* Copyright (c) 2000-2005, Daniel Morissette, DM Solutions Group Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of this Software or works derived from this Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
**********************************************************************/
#include <assert.h>
#include "mapserver.h"
#include "mapproject.h"
#include "mapthread.h"
#if defined(USE_OGR) || defined(USE_GDAL)
# include "gdal_version.h"
# include "cpl_conv.h"
# include "cpl_string.h"
# include "ogr_srs_api.h"
#endif
#define ACQUIRE_OGR_LOCK msAcquireLock( TLOCK_OGR )
#define RELEASE_OGR_LOCK msReleaseLock( TLOCK_OGR )
#ifdef USE_OGR
#include "ogr_api.h"
typedef struct ms_ogr_file_info_t {
char *pszFname;
int nLayerIndex;
OGRDataSourceH hDS;
OGRLayerH hLayer;
OGRFeatureH hLastFeature;
int nTileId; /* applies on the tiles themselves. */
struct ms_ogr_file_info_t *poCurTile; /* exists on tile index, -> tiles */
rectObj rect; /* set by WhichShapes */
int last_record_index_read;
} msOGRFileInfo;
static int msOGRLayerIsOpen(layerObj *layer);
static int msOGRLayerInitItemInfo(layerObj *layer);
static int msOGRLayerGetAutoStyle(mapObj *map, layerObj *layer, classObj *c,
shapeObj* shape);
static void msOGRCloseConnection( void *conn_handle );
/* ==================================================================
* Geometry conversion functions
* ================================================================== */
/**********************************************************************
* ogrPointsAddPoint()
*
* NOTE: This function assumes the line->point array already has been
* allocated large enough for the point to be added, but that numpoints
* does not include this new point.
**********************************************************************/
static void ogrPointsAddPoint(lineObj *line, double dX, double dY,
int lineindex, rectObj *bounds)
{
/* Keep track of shape bounds */
if (line->numpoints == 0 && lineindex == 0) {
bounds->minx = bounds->maxx = dX;
bounds->miny = bounds->maxy = dY;
} else {
if (dX < bounds->minx) bounds->minx = dX;
if (dX > bounds->maxx) bounds->maxx = dX;
if (dY < bounds->miny) bounds->miny = dY;
if (dY > bounds->maxy) bounds->maxy = dY;
}
line->point[line->numpoints].x = dX;
line->point[line->numpoints].y = dY;
#ifdef USE_POINT_Z_M
line->point[line->numpoints].z = 0.0;
line->point[line->numpoints].m = 0.0;
#endif
line->numpoints++;
}
/**********************************************************************
* ogrGeomPoints()
**********************************************************************/
static int ogrGeomPoints(OGRGeometryH hGeom, shapeObj *outshp)
{
int i;
int numpoints;
if (hGeom == NULL)
return 0;
OGRwkbGeometryType eGType = wkbFlatten( OGR_G_GetGeometryType( hGeom ) );
/* -------------------------------------------------------------------- */
/* Container types result in recursive invocation on each */
/* subobject to add a set of points to the current list. */
/* -------------------------------------------------------------------- */
switch( eGType ) {
case wkbGeometryCollection:
case wkbMultiLineString:
case wkbMultiPolygon:
case wkbPolygon: {
/* Treat it as GeometryCollection */
for (int iGeom=0; iGeom < OGR_G_GetGeometryCount( hGeom ); iGeom++ ) {
if( ogrGeomPoints( OGR_G_GetGeometryRef( hGeom, iGeom ),
outshp ) == -1 )
return -1;
}
return 0;
}
break;
case wkbPoint:
case wkbMultiPoint:
case wkbLineString:
case wkbLinearRing:
/* We will handle these directly */
break;
default:
/* There shouldn't be any more cases should there? */
msSetError(MS_OGRERR,
"OGRGeometry type `%s' not supported yet.",
"ogrGeomPoints()",
OGR_G_GetGeometryName( hGeom ) );
return(-1);
}
/* ------------------------------------------------------------------
* Count total number of points
* ------------------------------------------------------------------ */
if ( eGType == wkbPoint ) {
numpoints = 1;
} else if ( eGType == wkbLineString
|| eGType == wkbLinearRing ) {
numpoints = OGR_G_GetPointCount( hGeom );
} else if ( eGType == wkbMultiPoint ) {
numpoints = OGR_G_GetGeometryCount( hGeom );
} else {
msSetError(MS_OGRERR,
"OGRGeometry type `%s' not supported yet.",
"ogrGeomPoints()",
OGR_G_GetGeometryName( hGeom ) );
return(-1);
}
/* ------------------------------------------------------------------
* Do we need to allocate a line object to contain all our points?
* ------------------------------------------------------------------ */
if( outshp->numlines == 0 ) {
lineObj newline;
newline.numpoints = 0;
newline.point = NULL;
msAddLine(outshp, &newline);
}
/* ------------------------------------------------------------------
* Extend the point array for the new of points to add from the
* current geometry.
* ------------------------------------------------------------------ */
lineObj *line = outshp->line + outshp->numlines-1;
if( line->point == NULL )
line->point = (pointObj *) malloc(sizeof(pointObj) * numpoints);
else
line->point = (pointObj *)
realloc(line->point,sizeof(pointObj) * (numpoints+line->numpoints));
if(!line->point) {
msSetError(MS_MEMERR, "Unable to allocate temporary point cache.",
"ogrGeomPoints()");
return(-1);
}
/* ------------------------------------------------------------------
* alloc buffer and filter/transform points
* ------------------------------------------------------------------ */
if( eGType == wkbPoint ) {
ogrPointsAddPoint(line, OGR_G_GetX(hGeom, 0), OGR_G_GetY(hGeom, 0),
outshp->numlines-1, &(outshp->bounds));
} else if( eGType == wkbLineString
|| eGType == wkbLinearRing ) {
for(i=0; i<numpoints; i++)
ogrPointsAddPoint(line, OGR_G_GetX(hGeom, i), OGR_G_GetY(hGeom, i),
outshp->numlines-1, &(outshp->bounds));
} else if( eGType == wkbMultiPoint ) {
for(i=0; i<numpoints; i++) {
OGRGeometryH hPoint = OGR_G_GetGeometryRef( hGeom, i );
ogrPointsAddPoint(line, OGR_G_GetX(hPoint, 0), OGR_G_GetY(hPoint, 0),
outshp->numlines-1, &(outshp->bounds));
}
}
outshp->type = MS_SHAPE_POINT;
return(0);
}
/**********************************************************************
* ogrGeomLine()
*
* Recursively convert any OGRGeometry into a shapeObj. Each part becomes
* a line in the overall shapeObj.
**********************************************************************/
static int ogrGeomLine(OGRGeometryH hGeom, shapeObj *outshp,
int bCloseRings)
{
if (hGeom == NULL)
return 0;
/* ------------------------------------------------------------------
* Use recursive calls for complex geometries
* ------------------------------------------------------------------ */
OGRwkbGeometryType eGType = wkbFlatten( OGR_G_GetGeometryType( hGeom ) );
if ( eGType == wkbPolygon
|| eGType == wkbGeometryCollection
|| eGType == wkbMultiLineString
|| eGType == wkbMultiPolygon ) {
if (eGType == wkbPolygon && outshp->type == MS_SHAPE_NULL)
outshp->type = MS_SHAPE_POLYGON;
/* Treat it as GeometryCollection */
for (int iGeom=0; iGeom < OGR_G_GetGeometryCount( hGeom ); iGeom++ ) {
if( ogrGeomLine( OGR_G_GetGeometryRef( hGeom, iGeom ),
outshp, bCloseRings ) == -1 )
return -1;
}
}
/* ------------------------------------------------------------------
* OGRPoint and OGRMultiPoint
* ------------------------------------------------------------------ */
else if ( eGType == wkbPoint || eGType == wkbMultiPoint ) {
/* Hummmm a point when we're drawing lines/polygons... just drop it! */
}
/* ------------------------------------------------------------------
* OGRLinearRing/OGRLineString ... both are of type wkbLineString
* ------------------------------------------------------------------ */
else if ( eGType == wkbLineString ) {
int j, numpoints;
lineObj line= {0,NULL};
double dX, dY;
if ((numpoints = OGR_G_GetPointCount( hGeom )) < 2)
return 0;
if (outshp->type == MS_SHAPE_NULL)
outshp->type = MS_SHAPE_LINE;
line.numpoints = 0;
line.point = (pointObj *)malloc(sizeof(pointObj)*(numpoints+1));
if(!line.point) {
msSetError(MS_MEMERR, "Unable to allocate temporary point cache.",
"ogrGeomLine");
return(-1);
}
#if GDAL_VERSION_NUM >= 1900
OGR_G_GetPoints(hGeom,
&(line.point[0].x), sizeof(pointObj),
&(line.point[0].y), sizeof(pointObj),
NULL, 0);
#endif
for(j=0; j<numpoints; j++) {
#if GDAL_VERSION_NUM < 1900
dX = line.point[j].x = OGR_G_GetX( hGeom, j);
dY = line.point[j].y = OGR_G_GetY( hGeom, j);
#else
dX = line.point[j].x;
dY = line.point[j].y;
#endif
/* Keep track of shape bounds */
if (j == 0 && outshp->numlines == 0) {
outshp->bounds.minx = outshp->bounds.maxx = dX;
outshp->bounds.miny = outshp->bounds.maxy = dY;
} else {
if (dX < outshp->bounds.minx) outshp->bounds.minx = dX;
if (dX > outshp->bounds.maxx) outshp->bounds.maxx = dX;
if (dY < outshp->bounds.miny) outshp->bounds.miny = dY;
if (dY > outshp->bounds.maxy) outshp->bounds.maxy = dY;
}
}
line.numpoints = numpoints;
if (bCloseRings &&
( line.point[line.numpoints-1].x != line.point[0].x ||
line.point[line.numpoints-1].y != line.point[0].y ) ) {
line.point[line.numpoints].x = line.point[0].x;
line.point[line.numpoints].y = line.point[0].y;
line.numpoints++;
}
msAddLineDirectly(outshp, &line);
} else {
msSetError(MS_OGRERR,
"OGRGeometry type `%s' not supported.",
"ogrGeomLine()",
OGR_G_GetGeometryName( hGeom ) );
return(-1);
}
return(0);
}
/**********************************************************************
* ogrConvertGeometry()
*
* Convert OGR geometry into a shape object doing the best possible
* job to match OGR Geometry type and layer type.
*
* If layer type is incompatible with geometry, then shape is returned with
* shape->type = MS_SHAPE_NULL
**********************************************************************/
static int ogrConvertGeometry(OGRGeometryH hGeom, shapeObj *outshp,
enum MS_LAYER_TYPE layertype)
{
/* ------------------------------------------------------------------
* Process geometry according to layer type
* ------------------------------------------------------------------ */
int nStatus = MS_SUCCESS;
if (hGeom == NULL) {
// Empty geometry... this is not an error... we'll just skip it
return MS_SUCCESS;
}
switch(layertype) {
/* ------------------------------------------------------------------
* POINT layer - Any geometry can be converted to point/multipoint
* ------------------------------------------------------------------ */
case MS_LAYER_POINT:
if(ogrGeomPoints(hGeom, outshp) == -1) {
nStatus = MS_FAILURE; // Error message already produced.
}
break;
/* ------------------------------------------------------------------
* LINE layer
* ------------------------------------------------------------------ */
case MS_LAYER_LINE:
if(ogrGeomLine(hGeom, outshp, MS_FALSE) == -1) {
nStatus = MS_FAILURE; // Error message already produced.
}
if (outshp->type != MS_SHAPE_LINE && outshp->type != MS_SHAPE_POLYGON)
outshp->type = MS_SHAPE_NULL; // Incompatible type for this layer
break;
/* ------------------------------------------------------------------
* POLYGON layer
* ------------------------------------------------------------------ */
case MS_LAYER_POLYGON:
if(ogrGeomLine(hGeom, outshp, MS_TRUE) == -1) {
nStatus = MS_FAILURE; // Error message already produced.
}
if (outshp->type != MS_SHAPE_POLYGON)
outshp->type = MS_SHAPE_NULL; // Incompatible type for this layer
break;
/* ------------------------------------------------------------------
* MS_ANNOTATION layer - return real feature type
* ------------------------------------------------------------------ */
case MS_LAYER_ANNOTATION:
case MS_LAYER_CHART:
case MS_LAYER_QUERY:
switch( OGR_G_GetGeometryType( hGeom ) ) {
case wkbPoint:
case wkbPoint25D:
case wkbMultiPoint:
case wkbMultiPoint25D:
if(ogrGeomPoints(hGeom, outshp) == -1) {
nStatus = MS_FAILURE; // Error message already produced.
}
break;
default:
// Handle any non-point types as lines/polygons ... ogrGeomLine()
// will decide the shape type
if(ogrGeomLine(hGeom, outshp, MS_FALSE) == -1) {
nStatus = MS_FAILURE; // Error message already produced.
}
}
break;
default:
msSetError(MS_MISCERR, "Unknown or unsupported layer type.",
"msOGRLayerNextShape()");
nStatus = MS_FAILURE;
} /* switch layertype */
return nStatus;
}
/**********************************************************************
* msOGRGeometryToShape()
*
* Utility function to convert from OGR geometry to a mapserver shape
* object.
**********************************************************************/
int msOGRGeometryToShape(OGRGeometryH hGeometry, shapeObj *psShape,
OGRwkbGeometryType nType)
{
if (hGeometry && psShape && nType > 0) {
if (nType == wkbPoint || nType == wkbMultiPoint )
return ogrConvertGeometry(hGeometry, psShape, MS_LAYER_POINT);
else if (nType == wkbLineString || nType == wkbMultiLineString)
return ogrConvertGeometry(hGeometry, psShape, MS_LAYER_LINE);
else if (nType == wkbPolygon || nType == wkbMultiPolygon)
return ogrConvertGeometry(hGeometry, psShape, MS_LAYER_POLYGON);
else
return MS_FAILURE;
} else
return MS_FAILURE;
}
/* ==================================================================
* Attributes handling functions
* ================================================================== */
// Special field index codes for handling text string and angle coming from
// OGR style strings.
#define MSOGR_LABELNUMITEMS 21
#define MSOGR_LABELFONTNAMENAME "OGR:LabelFont"
#define MSOGR_LABELFONTNAMEINDEX -100
#define MSOGR_LABELSIZENAME "OGR:LabelSize"
#define MSOGR_LABELSIZEINDEX -101
#define MSOGR_LABELTEXTNAME "OGR:LabelText"
#define MSOGR_LABELTEXTINDEX -102
#define MSOGR_LABELANGLENAME "OGR:LabelAngle"
#define MSOGR_LABELANGLEINDEX -103
#define MSOGR_LABELFCOLORNAME "OGR:LabelFColor"
#define MSOGR_LABELFCOLORINDEX -104
#define MSOGR_LABELBCOLORNAME "OGR:LabelBColor"
#define MSOGR_LABELBCOLORINDEX -105
#define MSOGR_LABELPLACEMENTNAME "OGR:LabelPlacement"
#define MSOGR_LABELPLACEMENTINDEX -106
#define MSOGR_LABELANCHORNAME "OGR:LabelAnchor"
#define MSOGR_LABELANCHORINDEX -107
#define MSOGR_LABELDXNAME "OGR:LabelDx"
#define MSOGR_LABELDXINDEX -108
#define MSOGR_LABELDYNAME "OGR:LabelDy"
#define MSOGR_LABELDYINDEX -109
#define MSOGR_LABELPERPNAME "OGR:LabelPerp"
#define MSOGR_LABELPERPINDEX -110
#define MSOGR_LABELBOLDNAME "OGR:LabelBold"
#define MSOGR_LABELBOLDINDEX -111
#define MSOGR_LABELITALICNAME "OGR:LabelItalic"
#define MSOGR_LABELITALICINDEX -112
#define MSOGR_LABELUNDERLINENAME "OGR:LabelUnderline"
#define MSOGR_LABELUNDERLINEINDEX -113
#define MSOGR_LABELPRIORITYNAME "OGR:LabelPriority"
#define MSOGR_LABELPRIORITYINDEX -114
#define MSOGR_LABELSTRIKEOUTNAME "OGR:LabelStrikeout"
#define MSOGR_LABELSTRIKEOUTINDEX -115
#define MSOGR_LABELSTRETCHNAME "OGR:LabelStretch"
#define MSOGR_LABELSTRETCHINDEX -116
#define MSOGR_LABELADJHORNAME "OGR:LabelAdjHor"
#define MSOGR_LABELADJHORINDEX -117
#define MSOGR_LABELADJVERTNAME "OGR:LabelAdjVert"
#define MSOGR_LABELADJVERTINDEX -118
#define MSOGR_LABELHCOLORNAME "OGR:LabelHColor"
#define MSOGR_LABELHCOLORINDEX -119
#define MSOGR_LABELOCOLORNAME "OGR:LabelOColor"
#define MSOGR_LABELOCOLORINDEX -120
/**********************************************************************
* msOGRGetValues()
*
* Load selected item (i.e. field) values into a char array
*
* Some special attribute names are used to return some OGRFeature params
* like for instance stuff encoded in the OGRStyleString.
* For now the following pseudo-attribute names are supported:
* "OGR:TextString" OGRFeatureStyle's text string if present
* "OGR:TextAngle" OGRFeatureStyle's text angle, or 0 if not set
**********************************************************************/
static char **msOGRGetValues(layerObj *layer, OGRFeatureH hFeature)
{
char **values;
const char *pszValue = NULL;
int i;
if(layer->numitems == 0)
return(NULL);
if(!layer->iteminfo) // Should not happen... but just in case!
if (msOGRLayerInitItemInfo(layer) != MS_SUCCESS)
return NULL;
if((values = (char **)malloc(sizeof(char *)*layer->numitems)) == NULL) {
msSetError(MS_MEMERR, NULL, "msOGRGetValues()");
return(NULL);
}
OGRStyleMgrH hStyleMgr = NULL;
OGRStyleToolH hLabelStyle = NULL;
int *itemindexes = (int*)layer->iteminfo;
for(i=0; i<layer->numitems; i++) {
if (itemindexes[i] >= 0) {
// Extract regular attributes
values[i] = msStrdup(OGR_F_GetFieldAsString( hFeature, itemindexes[i]));
} else {
// Handle special OGR attributes coming from StyleString
if (!hStyleMgr) {
hStyleMgr = OGR_SM_Create(NULL);
OGR_SM_InitFromFeature(hStyleMgr, hFeature);
OGRStyleToolH hStylePart = OGR_SM_GetPart(hStyleMgr, 0, NULL);
if (hStylePart && OGR_ST_GetType(hStylePart) == OGRSTCLabel)
hLabelStyle = hStylePart;
else if (hStylePart) {
OGR_ST_Destroy(hStylePart);
hStylePart = NULL;
}
/* Setting up the size units according to msOGRLayerGetAutoStyle*/
if (hStylePart && layer->map)
OGR_ST_SetUnit(hStylePart, OGRSTUPixel, layer->map->cellsize*72.0*39.37);
}
int bDefault;
if (itemindexes[i] == MSOGR_LABELTEXTINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelTextString,
&bDefault)) == NULL))
values[i] = msStrdup("");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELTEXTNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELANGLEINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelAngle,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELANGLENAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELSIZEINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelSize,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELSIZENAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELFCOLORINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelFColor,
&bDefault)) == NULL))
values[i] = msStrdup("#000000");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELFCOLORNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELFONTNAMEINDEX ) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelFontName,
&bDefault)) == NULL))
values[i] = msStrdup("Arial");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELFONTNAMENAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELBCOLORINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelBColor,
&bDefault)) == NULL))
values[i] = msStrdup("#000000");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELBCOLORNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELPLACEMENTINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelPlacement,
&bDefault)) == NULL))
values[i] = msStrdup("");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELPLACEMENTNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELANCHORINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelAnchor,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELANCHORNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELDXINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelDx,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELDXNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELDYINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelDy,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELDYNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELPERPINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelPerp,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELPERPNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELBOLDINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelBold,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELBOLDNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELITALICINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelItalic,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELITALICNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELUNDERLINEINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelUnderline,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELUNDERLINENAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELPRIORITYINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelPriority,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELPRIORITYNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELSTRIKEOUTINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelStrikeout,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELSTRIKEOUTNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELSTRETCHINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelStretch,
&bDefault)) == NULL))
values[i] = msStrdup("0");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELSTRETCHNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELADJHORINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelAdjHor,
&bDefault)) == NULL))
values[i] = msStrdup("");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELADJHORNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELADJVERTINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelAdjVert,
&bDefault)) == NULL))
values[i] = msStrdup("");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELADJVERTNAME " = \"%s\"\n", values[i]);
} else if (itemindexes[i] == MSOGR_LABELHCOLORINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelHColor,
&bDefault)) == NULL))
values[i] = msStrdup("");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELHCOLORNAME " = \"%s\"\n", values[i]);
}
#if GDAL_VERSION_NUM >= 1600
else if (itemindexes[i] == MSOGR_LABELOCOLORINDEX) {
if (hLabelStyle == NULL
|| ((pszValue = OGR_ST_GetParamStr(hLabelStyle,
OGRSTLabelOColor,
&bDefault)) == NULL))
values[i] = msStrdup("");
else
values[i] = msStrdup(pszValue);
if (layer->debug >= MS_DEBUGLEVEL_VVV)
msDebug(MSOGR_LABELOCOLORNAME " = \"%s\"\n", values[i]);
}
#endif /* GDAL_VERSION_NUM >= 1600 */
else {
msSetError(MS_OGRERR,"Invalid field index!?!","msOGRGetValues()");
return(NULL);
}
}
}
OGR_SM_Destroy(hStyleMgr);
OGR_ST_Destroy(hLabelStyle);
return(values);
}
#endif /* USE_OGR */
#if defined(USE_OGR) || defined(USE_GDAL)
/**********************************************************************
* msOGRSpatialRef2ProjectionObj()
*
* Init a MapServer projectionObj using an OGRSpatialRef
* Works only with PROJECTION AUTO
*
* Returns MS_SUCCESS/MS_FAILURE
**********************************************************************/
static int msOGRSpatialRef2ProjectionObj(OGRSpatialReferenceH hSRS,
projectionObj *proj, int debug_flag )
{
#ifdef USE_PROJ
// First flush the "auto" name from the projargs[]...
msFreeProjection( proj );
if (hSRS == NULL || OSRIsLocal( hSRS ) ) {
// Dataset had no set projection or is NonEarth (LOCAL_CS)...
// Nothing else to do. Leave proj empty and no reprojection will happen!
return MS_SUCCESS;
}
// Export OGR SRS to a PROJ4 string
char *pszProj = NULL;
if (OSRExportToProj4( hSRS, &pszProj ) != OGRERR_NONE ||
pszProj == NULL || strlen(pszProj) == 0) {
msSetError(MS_OGRERR, "Conversion from OGR SRS to PROJ4 failed.",
"msOGRSpatialRef2ProjectionObj()");
CPLFree(pszProj);
return(MS_FAILURE);
}
if( debug_flag )
msDebug( "AUTO = %s\n", pszProj );
if( msLoadProjectionString( proj, pszProj ) != 0 )
return MS_FAILURE;
CPLFree(pszProj);
#endif
return MS_SUCCESS;
}
#endif // defined(USE_OGR) || defined(USE_GDAL)
/**********************************************************************
* msOGCWKT2ProjectionObj()
*
* Init a MapServer projectionObj using an OGC WKT definition.
* Works only with PROJECTION AUTO
*
* Returns MS_SUCCESS/MS_FAILURE
**********************************************************************/
int msOGCWKT2ProjectionObj( const char *pszWKT,
projectionObj *proj,
int debug_flag )
{
#if defined(USE_OGR) || defined(USE_GDAL)
OGRSpatialReferenceH hSRS;
char *pszAltWKT = (char *) pszWKT;
OGRErr eErr;
int ms_result;
hSRS = OSRNewSpatialReference( NULL );
if( !EQUALN(pszWKT,"GEOGCS",6)
&& !EQUALN(pszWKT,"PROJCS",6)
&& !EQUALN(pszWKT,"LOCAL_CS",8) )
eErr = OSRSetFromUserInput( hSRS, pszWKT );
else
eErr = OSRImportFromWkt( hSRS, &pszAltWKT );
if( eErr != OGRERR_NONE ) {
OSRDestroySpatialReference( hSRS );
msSetError(MS_OGRERR,
"Ingestion of WKT string '%s' failed.",
"msOGCWKT2ProjectionObj()",
pszWKT );
return MS_FAILURE;
}
ms_result = msOGRSpatialRef2ProjectionObj( hSRS, proj, debug_flag );
OSRDestroySpatialReference( hSRS );
return ms_result;
#else
msSetError(MS_OGRERR,
"Not implemented since neither OGR nor GDAL is enabled.",
"msOGCWKT2ProjectionObj()");
return MS_FAILURE;
#endif
}
/**********************************************************************
* msOGRFileOpen()
*
* Open an OGR connection, and initialize a msOGRFileInfo.
**********************************************************************/
#ifdef USE_OGR
static int bOGRDriversRegistered = MS_FALSE;
#endif
void msOGRInitialize(void)
{
#ifdef USE_OGR
/* ------------------------------------------------------------------
* Register OGR Drivers, only once per execution
* ------------------------------------------------------------------ */
if (!bOGRDriversRegistered) {
ACQUIRE_OGR_LOCK;
OGRRegisterAll();
CPLPushErrorHandler( CPLQuietErrorHandler );
/* ------------------------------------------------------------------
* Pass config option GML_FIELDTYPES=ALWAYS_STRING to OGR so that all
* GML attributes are returned as strings to MapServer. This is most efficient
* and prevents problems with autodetection of some attribute types.
* ------------------------------------------------------------------ */
CPLSetConfigOption("GML_FIELDTYPES","ALWAYS_STRING");
bOGRDriversRegistered = MS_TRUE;
RELEASE_OGR_LOCK;
}
#endif /* USE_OGR */
}
/* ==================================================================
* The following functions closely relate to the API called from
* maplayer.c, but are intended to be used for the tileindex or direct
* layer access.
* ================================================================== */
#ifdef USE_OGR
/**********************************************************************
* msOGRFileOpen()
*
* Open an OGR connection, and initialize a msOGRFileInfo.
**********************************************************************/
static msOGRFileInfo *
msOGRFileOpen(layerObj *layer, const char *connection )
{
char *conn_decrypted = NULL;
msOGRInitialize();
/* ------------------------------------------------------------------
* Make sure any encrypted token in the connection string are decrypted
* ------------------------------------------------------------------ */
if (connection) {
conn_decrypted = msDecryptStringTokens(layer->map, connection);
if (conn_decrypted == NULL)
return NULL; /* An error should already have been reported */
}
/* ------------------------------------------------------------------
* Parse connection string into dataset name, and layer name.
* ------------------------------------------------------------------ */
char *pszDSName = NULL, *pszLayerDef = NULL;
if( conn_decrypted == NULL ) {
/* we don't have anything */
} else if( layer->data != NULL ) {
pszDSName = CPLStrdup(conn_decrypted);
pszLayerDef = CPLStrdup(layer->data);
} else {
char **papszTokens = NULL;
papszTokens = CSLTokenizeStringComplex( conn_decrypted, ",", TRUE, FALSE );
if( CSLCount(papszTokens) > 0 )
pszDSName = CPLStrdup( papszTokens[0] );
if( CSLCount(papszTokens) > 1 )
pszLayerDef = CPLStrdup( papszTokens[1] );
CSLDestroy(papszTokens);
}
/* Get rid of decrypted connection string. We'll use the original (not
* decrypted) string for debug and error messages in the rest of the code.
*/
msFree(conn_decrypted);
conn_decrypted = NULL;
if( pszDSName == NULL ) {