From 3ce0f0147db4809561142620e8298ca501d901b1 Mon Sep 17 00:00:00 2001
From: Sandro Santilli <strk@keybit.net>
Date: Tue, 25 Nov 2003 17:32:47 +0000
Subject: [PATCH] first attempt at wkb definitions

git-svn-id: http://svn.osgeo.org/postgis/trunk@387 b70326c6-7e19-0410-871a-916f4a2858ee
---
 loader/wkb.h | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 loader/wkb.h

diff --git a/loader/wkb.h b/loader/wkb.h
new file mode 100644
index 000000000..044970e61
--- /dev/null
+++ b/loader/wkb.h
@@ -0,0 +1,98 @@
+/*
+ * OGC WellKnownBinaryGeometry
+ */
+
+/*
+ * 3d geometries are encode as in OGR by adding WKB3DOFFSET to the type.  
+ */
+#define WKB3DOFFSET 0x80000000
+
+typedef char byte;
+typedef unsigned int uint32;
+
+typedef struct Point_t {
+	double x;
+	double y;
+	double z;
+} Point;
+
+typedef struct LinearRing_t {
+	uint32    numPoints;
+	Point    points[1]; // [numPoints]
+} LinearRing; 
+
+enum wkbGeometryType {
+	wkbPoint = 1,
+	wkbLineString = 2,
+	wkbPolygon = 3,
+	wkbMultiPoint = 4,
+	wkbMultiLineString = 5,
+	wkbMultiPolygon = 6,
+	wkbGeometryCollection = 7
+};
+
+enum wkbByteOrder {
+	wkbXDR = 0,    // Big Endian
+	wkbNDR = 1    // Little Endian
+};
+
+typedef struct WKBPoint_t {
+	byte    byteOrder;
+	uint32    wkbType;     // 1
+	Point    point;
+} WKBPoint;
+
+typedef struct WKBLineString_t {
+	byte    byteOrder;
+	uint32    wkbType;    // 2
+	uint32    numPoints;
+	Point    points[1]; // [numPoints]
+} WKBLineString;
+
+typedef struct WKBPolygon_t {
+	byte    byteOrder;
+	uint32    wkbType;    // 3
+	uint32    numRings;
+	LinearRing    rings[1]; // [numRings]
+} WKBPolygon;
+
+typedef struct WKBMultiPoint_t {
+	byte    byteOrder;
+	uint32    wkbType;       // 4
+	uint32    num_wkbPoints;
+	WKBPoint    WKBPoints[1]; // [num_wkbPoints];
+} WKBMultiPoint;
+
+typedef struct WKBMultiLineString_t {
+	byte    byteOrder;
+	uint32    wkbType;    // 5
+	uint32    num_wkbLineStrings;
+	WKBLineString    WKBLineStrings[1]; // [num_wkbLineStrings];
+} WKBMultiLineString;
+
+typedef struct WKBMultiPolygon_t {
+	byte    byteOrder;
+	uint32    wkbType;    // 6
+	uint32    num_wkbPolygons;
+	WKBPolygon    wkbPolygons[1]; // [num_wkbPolygons];
+} WKBMultiPolygon;
+
+typedef struct WKBGeometryCollection_t {
+	byte    byte_order;
+	uint32    wkbType;    // 7
+	uint32    num_wkbGeometries;
+	char    wkbGeometries[1]; // WKBGeometry [num_wkbGeometries];
+} WKBGeometryCollection;
+
+typedef struct WKBGeometry_t {
+	union {
+		WKBPoint    point;
+		WKBLineString    linestring;
+		WKBPolygon    polygon;
+		WKBGeometryCollection    collection;
+		WKBMultiPoint    mpoint;
+		WKBMultiLineString    mlinestring;
+		WKBMultiPolygon    mpolygon;
+	};
+} WKBGeometry;
+
-- 
2.50.1