使用ogr的python api构建的库和工具的集合。
ogrtools的Python项目详细描述
简介
ogrtools是用python构建的库和工具的集合。 OGR的api。
pyogr库
pyogr将ogr命令（如ogr2ogr或ogrinfo）作为python库提供给您， 即不调用外部可执行文件。大部分代码是 已经作为使用 python api。
- ogr2ogr.py:使用stdout/stderr重定向的ogr2ogr调用
- ogrinfo.py:ogrinfo调用
- ogrvrt.py:从数据源生成VRT
- py：对数据源调用ogr sql命令
ogrtransform库
从一种格式转换数据时，ogr有许多选项 变成另一个。ogrtransform库使用json中的配置 转换数据的格式。
示例：
{
"//": "OGR transformation configuration",
"src_format": "Interlis 2",
"dst_format": "PostgreSQL",
"dst_dsco": {},
"dst_lco": {
"SCHEMA": "public"
},
"layers": {
"roadsexdm2ben_roads_streetnameposition": {
"fields": {
"tid": {
"src": "TID",
"type": "String"
},
"street": {
"src": "Street",
"type": "String"
},
"namori": {
"src": "NamOri",
"type": "Real"
}
},
"geometry_type": "Point",
"src_layer": "RoadsExdm2ben.Roads.StreetNamePosition",
"geom_fields": {
"nampos": {
"src": "NamPos",
"type": "Point"
}
}
},
"roadsexdm2ben_roads_streetaxis": {
"fields": {
"tid": {
"src": "TID",
"type": "String"
},
"street": {
"src": "Street",
"type": "String"
}
},
"geometry_type": "MultiLineString",
"src_layer": "RoadsExdm2ben.Roads.StreetAxis",
"geom_fields": {
"geometry": {
"src": "Geometry",
"type": "MultiLineString"
}
}
}
},
"enums": {
"enum0_type": {
"src_name": "RoadsExdm2ben.Roads.RoadSign.Type",
"values": [
{
"enumtxt": "prohibition",
"enum": "prohibition",
"id": 0
},
{
"enumtxt": "indication",
"enum": "indication",
"id": 1
},
{
"enumtxt": "danger",
"enum": "danger",
"id": 2
},
{
"enumtxt": "velocity",
"enum": "velocity",
"id": 3
}
]
}
}
}
有关详细信息，请参见Wiki 信息。
ogr命令行工具
ogr命令行工具公开ogrtools功能，以便在 命令外壳。
ogr --help
usage: ogr [-h]
{version,formats,info,sql,vrt,genconfig,write-enums,transform} ...
Query and transform OGR compatible vector data
optional arguments:
-h, --help show this help message and exit
commands:
valid commands
{version,formats,info,sql,vrt,genconfig,write-enums,transform}
version Show version information
formats List available data formats
info Information about data
sql Execute SQL Query
vrt Create VRT from data source
genconfig Generate OGR configuration from data source
write-enums Write tables with enumeration values
transform Transform data source based on OGR configuration
ogr版本
显示版本信息
usage: ogr version [-h]
ogr格式
列出可用的数据格式
usage: ogr formats [-h]
ogr信息
有关数据的信息
usage: ogr info [-h] source [layers [layers ...]]
示例：
ogr info tests/data/osm/railway.shp
INFO: Open of `tests/data/osm/railway.shp'
using driver `ESRI Shapefile' successful.
Layer name: railway
Geometry: Line String
Feature Count: 73
Extent: (9.478497, 9.628118) - (47.124600, 47.262550)
Layer SRS WKT:
GEOGCS["GCS_WGS_1984",
DATUM["WGS_1984",
SPHEROID["WGS_84",6378137,298.257223563]],
PRIMEM["Greenwich",0],
UNIT["Degree",0.017453292519943295]]
type: String (255.0)
osm_id: Real (11.0)
lastchange: Date (10.0)
name: String (255.0)
keyvalue: String (80.0)
ogr sql
执行SQL查询
usage: ogr sql [-h] source sql-query
示例：
ogr sql tests/data/osm/railway.shp "SELECT type,osm_id,lastchange FROM railway WHERE lastchange < '2008/04/01'"
INFO: Open of `tests/data/osm/railway.shp'
using driver `ESRI Shapefile' successful.
Layer name: railway
Geometry: Line String
Feature Count: 8
Extent: (9.478497, 9.628118) - (47.124600, 47.262550)
Layer SRS WKT:
GEOGCS["GCS_WGS_1984",
DATUM["WGS_1984",
SPHEROID["WGS_84",6378137,298.257223563]],
PRIMEM["Greenwich",0],
UNIT["Degree",0.017453292519943295]]
type: String (255.0)
osm_id: Real (11.0)
lastchange: Date (10.0)
OGRFeature(railway):6
type (String) = rail
osm_id (Real) = 9675696
lastchange (Date) = 2007/10/17
LINESTRING (9.6174755 47.227974,9.6170635 47.22802)
OGRFeature(railway):8
type (String) = rail
osm_id (Real) = 9675711
lastchange (Date) = 2007/10/17
LINESTRING (9.617415 47.22794,9.617038 47.227985)
...
ogr vrt
从数据源创建VRT
usage: ogr vrt [-h] source [layers [layers ...]]
示例：
ogr vrt tests/data/osm/railway.shp
<OGRVRTDataSource>
<OGRVRTLayer name="railway">
<SrcDataSource relativeToVRT="0" shared="1">tests/data/osm/railway.shp</SrcDataSource>
<SrcLayer>railway</SrcLayer>
<GeometryType>wkbLineString</GeometryType>
<LayerSRS>GEOGCS["GCS_WGS_1984",DATUM["WGS_1984",SPHEROID["WGS_84",6378137,298.257223563]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]]</LayerSRS>
<Field name="type" type="String" src="type" width="255"/>
<Field name="osm_id" type="Real" src="osm_id" width="11"/>
<Field name="lastchange" type="Date" src="lastchange" width="10"/>
<Field name="name" type="String" src="name" width="255"/>
<Field name="keyvalue" type="String" src="keyvalue" width="80"/>
</OGRVRTLayer>
</OGRVRTDataSource>
ogr genconfig
从数据源生成转换规范
usage: ogr genconfig [-h] [--format FORMAT] [--model MODEL]
source [layers [layers ...]]
示例：
ogr genconfig --format=PostgreSQL tests/data/osm/railway.shp
{
"comment": "// OGR transformation specification",
"layers": {
"railway": {
"fields": {
"keyvalue": {
"src": "keyvalue",
"type": "String",
"width": 80
},
"lastchange": {
"src": "lastchange",
"type": "Date",
"width": 10
},
"type": {
"src": "type",
"type": "String",
"width": 255
},
"name": {
"src": "name",
"type": "String",
"width": 255
},
"osm_id": {
"src": "osm_id",
"type": "Real",
"width": 11
}
},
"geometry_type": "LineString",
"src_layer": "railway"
}
}
}
ogr write枚举
使用枚举值编写表
usage: ogr write-enums [-h] [--debug] [--format FORMAT] [--config CONFIG]
[dest]
positional arguments:
dest output datasource
optional arguments:
-h, --help show this help message and exit
--debug Display debugging information
--format FORMAT Destination format
--config CONFIG OGR configuration
示例：
ogr write-enums --config=roads.cfg "PG:dbname=ogrili"
ogr变换
基于转换配置转换数据源
usage: ogr transform [-h] [--debug] [--reverse] [--format FORMAT]
[--config CONFIG]
[dest] source [layers [layers ...]]
positional arguments:
dest output datasource
source input datasource
layers layer names
optional arguments:
-h, --help show this help message and exit
--debug Display debugging information
--reverse Reverse transformation
--format FORMAT Destination format
--config CONFIG OGR configuration
示例：
ogr transform --config=roads.cfg "PG:dbname=ogrili" RoadsExdm2ien.xml
从Interlis到GML:
ogr transform --format GML --config tests/data/ili/RoadsExdm2ien.cfg tests/data/ili/RoadsExdm2ien.gml tests/data/ili/roads23.xtf,tests/data/ili/RoadsExdm2ien.imd
返回Interlis:
ogr transform --reverse --config tests/data/ili/RoadsExdm2ien.cfg /tmp/roads23_from_gml.xtf,tests/data/ili/RoadsExdm2ien.imd tests/data/ili/RoadsExdm2ien.gml
ogr处理qgis插件
提供了作为qgis sextante插件的ogr功能。它是为 qgis 1.8，现在被纳入qgis的核心处理算法中。 2.0条。
interlis qgis插件
用于使用ogr/ogrtools导入和导出interlis数据的gui。 包括易于安装的python库。目前测试 Qgis 2.0版。
开发
git clone https://github.com/sourcepole/ogrtools.git
运行测试：
apt-get install python-nose
nosetests
用于从源树运行ogr命令：
alias ogr="PYTHONPATH=$(pwd) $(pwd)/ogr_cli/ogr.py"
许可证
Ogrtools版权所有©2012-2015 SourcePole AG。它是自由软件， 并可根据license.txt中指定的条款重新分发。 文件。
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