From 8b4c46a01eab8f390ff4ab8ec5b78d8055ff4f34 Mon Sep 17 00:00:00 2001 From: Bibiko Date: Fri, 8 Oct 2010 19:57:21 +0000 Subject: =?UTF-8?q?=E2=80=A2=20some=20further=20work=20on=20displaying=20g?= =?UTF-8?q?eometry=20fields=20as=20image=20-=20to=20enable=20the=20very=20?= =?UTF-8?q?first=20approach=20simply=20uncomment=20code=20in=20SPTableCont?= =?UTF-8?q?ent=20tableView:toolTipForCell:rect:tableColumn:row:mouseLocati?= =?UTF-8?q?on:=20for=20MCPGeometryData=20class?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../MCPKit/MCPFoundationKit/MCPGeometryData.h | 1 + .../MCPKit/MCPFoundationKit/MCPGeometryData.m | 298 +++++++++++++++++++++ 2 files changed, 299 insertions(+) (limited to 'Frameworks') diff --git a/Frameworks/MCPKit/MCPFoundationKit/MCPGeometryData.h b/Frameworks/MCPKit/MCPFoundationKit/MCPGeometryData.h index 7d141991..cca59b30 100644 --- a/Frameworks/MCPKit/MCPFoundationKit/MCPGeometryData.h +++ b/Frameworks/MCPKit/MCPFoundationKit/MCPGeometryData.h @@ -58,6 +58,7 @@ typedef struct st_point_2d_ - (NSUInteger)length; - (NSData*)data; - (NSString*)wktString; +- (NSDictionary*)coordinates; - (NSInteger)wkbType; - (NSString*)wktType; diff --git a/Frameworks/MCPKit/MCPFoundationKit/MCPGeometryData.m b/Frameworks/MCPKit/MCPFoundationKit/MCPGeometryData.m index 1c511af3..b46a0dc7 100644 --- a/Frameworks/MCPKit/MCPFoundationKit/MCPGeometryData.m +++ b/Frameworks/MCPKit/MCPFoundationKit/MCPGeometryData.m @@ -351,6 +351,304 @@ return @"Error while parsing"; } +/** + * Return a dictionary of coordinates, bbox, etc. to be able to draw the given geometry. + * + * @return A dictionary having the following keys: "bbox" as NSArray of NSNumbers of x_min x_max y_min y_max, "coordinates" as NSArray containing the + * the to be drawn points as NSPoint strings, "type" as NSString + */ +- (NSDictionary*)coordinates +{ + + char byteOrder; + UInt32 geoType, numberOfItems, numberOfSubItems, numberOfSubSubItems, numberOfCollectionItems; + st_point_2d aPoint; + + NSUInteger i, j, k, n; // Loop counter for numberOf...Items + NSUInteger ptr = BUFFER_START; // pointer to geoBuffer while parsing + + double x_min = 1e999; + double x_max = -1e999; + double y_min = 1e999; + double y_max = -1e999; + + NSMutableArray *coordinates = [NSMutableArray array]; + NSMutableArray *subcoordinates = [NSMutableArray array]; + + if (bufferLength < WKB_HEADER_SIZE) + return @"Header Error"; + + byteOrder = geoBuffer[ptr]; + + if(byteOrder != 0x1) + return @"Byte order not yet supported"; + + ptr++; + geoType = geoBuffer[ptr]; + ptr += SIZEOF_STORED_UINT32; + + switch(geoType) { + + case wkb_point: + memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + x_min = aPoint.x; + x_max = aPoint.x; + y_min = aPoint.y; + y_max = aPoint.y; + [coordinates addObject:NSStringFromPoint(NSMakePoint(aPoint.x, aPoint.y))]; + return [NSDictionary dictionaryWithObjectsAndKeys: + [NSArray arrayWithObjects: + [NSNumber numberWithDouble:x_min], + [NSNumber numberWithDouble:x_max], + [NSNumber numberWithDouble:y_min], + [NSNumber numberWithDouble:y_max], + nil], @"bbox", + coordinates, @"coordinates", + @"POINT", @"type", + nil]; + break; + + case wkb_linestring: + numberOfItems = geoBuffer[ptr]; + ptr += SIZEOF_STORED_UINT32; + for(i=0; i < numberOfItems; i++) { + memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + x_min = (aPoint.x < x_min) ? aPoint.x : x_min; + x_max = (aPoint.x > x_max) ? aPoint.x : x_max; + y_min = (aPoint.y < y_min) ? aPoint.y : y_min; + y_max = (aPoint.y > y_max) ? aPoint.y : y_max; + [coordinates addObject:NSStringFromPoint(NSMakePoint(aPoint.x, aPoint.y))]; + ptr += POINT_DATA_SIZE; + } + return [NSDictionary dictionaryWithObjectsAndKeys: + [NSArray arrayWithObjects: + [NSNumber numberWithDouble:x_min], + [NSNumber numberWithDouble:x_max], + [NSNumber numberWithDouble:y_min], + [NSNumber numberWithDouble:y_max], + nil], @"bbox", + coordinates, @"coordinates", + @"LINESTRING", @"type", + nil]; + break; + + case wkb_polygon: + numberOfItems = geoBuffer[ptr]; + ptr += SIZEOF_STORED_UINT32; + for(i=0; i < numberOfItems; i++) { + numberOfSubItems = geoBuffer[ptr]; + ptr += SIZEOF_STORED_UINT32; + for(j=0; j < numberOfSubItems; j++) { + memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + x_min = (aPoint.x < x_min) ? aPoint.x : x_min; + x_max = (aPoint.x > x_max) ? aPoint.x : x_max; + y_min = (aPoint.y < y_min) ? aPoint.y : y_min; + y_max = (aPoint.y > y_max) ? aPoint.y : y_max; + [subcoordinates addObject:NSStringFromPoint(NSMakePoint(aPoint.x, aPoint.y))]; + ptr += POINT_DATA_SIZE; + } + [coordinates addObject:[[subcoordinates copy] autorelease]]; + [subcoordinates removeAllObjects]; + } + return [NSDictionary dictionaryWithObjectsAndKeys: + [NSArray arrayWithObjects: + [NSNumber numberWithDouble:x_min], + [NSNumber numberWithDouble:x_max], + [NSNumber numberWithDouble:y_min], + [NSNumber numberWithDouble:y_max], + nil], @"bbox", + coordinates, @"coordinates", + @"POLYGON", @"type", + nil]; + break; + + // case wkb_multipoint: + // [wkt setString:@"MULTIPOINT("]; + // numberOfItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32+WKB_HEADER_SIZE; + // for(i=0; i < numberOfItems; i++) { + // memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + // [wkt appendFormat:@"%.16g %.16g%@", aPoint.x, aPoint.y, (i < numberOfItems-1) ? @"," : @""]; + // ptr += POINT_DATA_SIZE+WKB_HEADER_SIZE; + // } + // [wkt appendString:@")"]; + // return wkt; + // break; + // + // case wkb_multilinestring: + // [wkt setString:@"MULTILINESTRING("]; + // numberOfItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32+WKB_HEADER_SIZE; + // for(i=0; i < numberOfItems; i++) { + // numberOfSubItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // [wkt appendString:@"("]; + // for(j=0; j < numberOfSubItems; j++) { + // memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + // [wkt appendFormat:@"%.16g %.16g%@", aPoint.x, aPoint.y, (j < numberOfSubItems-1) ? @"," : @""]; + // ptr += POINT_DATA_SIZE; + // } + // ptr += WKB_HEADER_SIZE; + // [wkt appendFormat:@")%@", (i < numberOfItems-1) ? @"," : @""]; + // } + // [wkt appendString:@")"]; + // return wkt; + // break; + // + // case wkb_multipolygon: + // [wkt setString:@"MULTIPOLYGON("]; + // numberOfItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32+WKB_HEADER_SIZE; + // for(i=0; i < numberOfItems; i++) { + // numberOfSubItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // [wkt appendString:@"("]; + // for(j=0; j < numberOfSubItems; j++) { + // numberOfSubSubItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // [wkt appendString:@"("]; + // for(k=0; k < numberOfSubSubItems; k++) { + // memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + // [wkt appendFormat:@"%.16g %.16g%@", aPoint.x, aPoint.y, (k < numberOfSubSubItems-1) ? @"," : @""]; + // ptr += POINT_DATA_SIZE; + // } + // [wkt appendFormat:@")%@", (j < numberOfSubItems-1) ? @"," : @""]; + // } + // ptr += WKB_HEADER_SIZE; + // [wkt appendFormat:@")%@", (i < numberOfItems-1) ? @"," : @""]; + // } + // [wkt appendString:@")"]; + // return wkt; + // break; + // + // case wkb_geometrycollection: + // [wkt setString:@"GEOMETRYCOLLECTION("]; + // numberOfCollectionItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // + // for(n=0; n < numberOfCollectionItems; n++) { + // + // byteOrder = geoBuffer[ptr]; + // + // if(byteOrder != 0x1) + // return @"Byte order not yet supported"; + // + // ptr++; + // geoType = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // + // switch(geoType) { + // + // case wkb_point: + // memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + // [wkt appendFormat:@"POINT(%.16g %.16g)", aPoint.x, aPoint.y]; + // ptr += POINT_DATA_SIZE; + // break; + // + // case wkb_linestring: + // [wkt appendString:@"LINESTRING("]; + // numberOfItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // for(i=0; i < numberOfItems; i++) { + // memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + // [wkt appendFormat:@"%.16g %.16g%@", aPoint.x, aPoint.y, (i < numberOfItems-1) ? @"," : @""]; + // ptr += POINT_DATA_SIZE; + // } + // [wkt appendString:@")"]; + // break; + // + // case wkb_polygon: + // [wkt appendString:@"POLYGON("]; + // numberOfItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // for(i=0; i < numberOfItems; i++) { + // numberOfSubItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // [wkt appendString:@"("]; + // for(j=0; j < numberOfSubItems; j++) { + // memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + // [wkt appendFormat:@"%.16g %.16g%@", aPoint.x, aPoint.y, (j < numberOfSubItems-1) ? @"," : @""]; + // ptr += POINT_DATA_SIZE; + // } + // [wkt appendFormat:@")%@", (i < numberOfItems-1) ? @"," : @""]; + // } + // [wkt appendString:@")"]; + // break; + // + // case wkb_multipoint: + // [wkt appendString:@"MULTIPOINT("]; + // numberOfItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32+WKB_HEADER_SIZE; + // for(i=0; i < numberOfItems; i++) { + // memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + // [wkt appendFormat:@"%.16g %.16g%@", aPoint.x, aPoint.y, (i < numberOfItems-1) ? @"," : @""]; + // ptr += POINT_DATA_SIZE+WKB_HEADER_SIZE; + // } + // ptr -= WKB_HEADER_SIZE; + // [wkt appendString:@")"]; + // break; + // + // case wkb_multilinestring: + // [wkt appendString:@"MULTILINESTRING("]; + // numberOfItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32+WKB_HEADER_SIZE; + // for(i=0; i < numberOfItems; i++) { + // numberOfSubItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // [wkt appendString:@"("]; + // for(j=0; j < numberOfSubItems; j++) { + // memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + // [wkt appendFormat:@"%.16g %.16g%@", aPoint.x, aPoint.y, (j < numberOfSubItems-1) ? @"," : @""]; + // ptr += POINT_DATA_SIZE; + // } + // ptr += WKB_HEADER_SIZE; + // [wkt appendFormat:@")%@", (i < numberOfItems-1) ? @"," : @""]; + // } + // ptr -= WKB_HEADER_SIZE; + // [wkt appendString:@")"]; + // break; + // + // case wkb_multipolygon: + // [wkt appendString:@"MULTIPOLYGON("]; + // numberOfItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32+WKB_HEADER_SIZE; + // for(i=0; i < numberOfItems; i++) { + // numberOfSubItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // [wkt appendString:@"("]; + // for(j=0; j < numberOfSubItems; j++) { + // numberOfSubSubItems = geoBuffer[ptr]; + // ptr += SIZEOF_STORED_UINT32; + // [wkt appendString:@"("]; + // for(k=0; k < numberOfSubSubItems; k++) { + // memcpy(&aPoint, &geoBuffer[ptr], POINT_DATA_SIZE); + // [wkt appendFormat:@"%.16g %.16g%@", aPoint.x, aPoint.y, (k < numberOfSubSubItems-1) ? @"," : @""]; + // ptr += POINT_DATA_SIZE; + // } + // [wkt appendFormat:@")%@", (j < numberOfSubItems-1) ? @"," : @""]; + // } + // ptr += WKB_HEADER_SIZE; + // [wkt appendFormat:@")%@", (i < numberOfItems-1) ? @"," : @""]; + // } + // ptr -= WKB_HEADER_SIZE; + // [wkt appendString:@")"]; + // break; + // + // default: + // return @"Error geometrycollection type parsing"; + // } + // [wkt appendString:(n < numberOfCollectionItems-1) ? @"," : @""]; + // } + // [wkt appendString:@")"]; + // return wkt; + break; + + default: + return nil; + } + return nil; +} + /** * Return the WKB type of the geoBuffer ie if buffer represents a POINT, LINESTRING, etc. * according to stored wkbType in header file. It returns -1 if an error occurred. -- cgit v1.2.3