asia shapefile

This document describes how to read and write data from a file using the ogr c ++ class. Before reading this document, we strongly recommend that you first read the introduction to the OGR architecture, which introduces the main classes in OGR and their functions.To read data from OGR and describe how to read data through OGR, we compile a small example to read data from the OGR file and output the data in a certain format. First, we need to register all the formats we desire to read. This can b

How to use Mapshow+shapefile: %% Mapchina CLC;CLEAR;CLF% shapefile include national boundaries and provincial fnshp_l= ' E:\ChinaMap\ border and Provincial \bou2_4l.shp ';%shapetype: ' Polyline ' fnshp_p= ' E:\ChinaMap\ border and Provincial \bou2_4p.shp ';%shapetype: ' Polygon ' infol = Shapeinfo (fnshp_l); INFOP = Shapeinfo (fnshp_p); Readl=shaperead (fnshp_l); Readp=shaperead (fnshp_p); Subplot (121);

= 0; ifield { Ogrfielddefn * pofielddefn = pofdefn-> getfielddefn (ifield); If (pofielddefn-> GetType () = oftinteger) Printf ("% d,", pofeature-> getfieldasinteger (ifield )); Else if (pofielddefn-> GetType () = oftreal) Printf ("%. 3f,", pofeature-> getfieldasdouble (ifield )); Else if (pofielddefn-> GetType () = oftstring) Printf ("% s,", pofeature-> getfieldasstring (ifield )); Else Printf ("% s,", pofeature-> getfieldasstring (ifield )); } Ogrgeometry * pogeometry; pogeometry = pofeature->

Recently been busy with the Mentor project, a few days did not update, yesterday and today to study the next WWJ analysis shp file source code, now record, hope can help more people!Previous blog: World Wind Java Development Five-read local shp file only how to load shp files, not related to the analysis of SHP files, our blog immediately after the previous blog, using WWJ to parse shp files. First look at the source package and related classes used, as shown in. The parse SHP file is used prima

. MiddlewareRepresentative: geotools (Java)Middleware plays the role of connecting data and services in the system. Geotools reads data from various data sources (such as postgis, GML, shapefile, and WFS) and standardizes the data. The feature interface is defined in geotools. After reading data from different data sources, it is unified into the implementation of the feature interface that contains a geometry member (defined in JTs. In this way, furt

Representative: geotools (Java)Middleware plays the role of connecting data and services in the system. Geotools reads data from various data sources (such as postgis, GML, shapefile, and WFS) and standardizes the data. The feature interface is defined in geotools. After reading data from different data sources, it is unified into the implementation of the feature interface that contains a geometry member (defined in JTs. In this way, further operati

From: http://www.cnblogs.com/caodajieup/archive/2010/07/01/1768831.html Data is the basis of GIS, and data access is also the prerequisite for any complex spatial analysis and spatial visualization. ArcGIS supports a wide range of data formats, and supports a wide range of data formats. This article describes how to access the following eight data formats in ArcGIS Engine. Readers who have some knowledge about ArcGIS desktop applications are more suitable for reading this article. The sample cod

(SDE, personal/file, shapefile, CAD data, image and image dataset) From: http://www.byywee.com/page/M0/S578/578771.html Arcengine can take over multiple data sources. During the development process, we applied the following data sources: 1. enterprise database (SDE) Enterprise databases need to be managed by SDE, so the workspace of Sde must be used to implicitly connect. In the AE interface, the workspace is opened by the factory. The Code is as fol

For the following content, see Oracle space database development and application guide (HE yuanrong and others) oralcespail's shapefile Conversion Tool: After shp2sdo (provided by oracle) is converted, sqlloader can be uploaded. Mapinfo interchange format files. mif and. mid (the interchange file format is similar to esri shapefile files ). For the following content, see Oracle space database development a

ArcGIS files are divided into three types: shapefile, coverage, and Geodatabase. For example, if you use the TXT and DOC file formats that have been used for a long time, you have not checked their differences and relationships, you don't need to worry too much about learning so many data formats in ArcGIS. You just need to know some of their basic applications: Shapefile: A file format that stores GIS

In this example, we use the official C # Driver to store and query spatial data (vectors) in MongoDB) read vector element space information and attribute tables, and write them to MongoDB. Read the shapefile file and convert the space information to json using the Ogr library. [csh In this example, we use the official C # Driver to store and query spatial data (vectors) in MongoDB) read vector element space information and attribute tables, and write

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The original address cannot be found... Data is the basis of GIS, and data access is also the prerequisite for any complex spatial analysis and spatial visualization. ArcGIS supports a wide range of data formats, and supports a wide range of data formats. This article describes how to access the following eight data formats in ArcGIS Engine. Readers who have some knowledge about ArcGIS desktop applications are more suitable for reading this article. ExampleCodeIt is written in C.•

ArcGIS Desktop requires that both the independent table and Attribute Table have an objectid field, which contains a unique, long integer value to specify each record. This ID is managed by ESRI software and cannot be changed manually. In shapefiles and Geodatabase feature classes, the objectid processing method is different from that in an independent table.--- In a shapefile, The 'fid' field contains objectid and the value starts from scratch.--- In

... Or how to upload an ESRI Shapefile to PostGIS. I 've often been asked how to copy data from a shapefile to a postgis database. postgis comes with a CommandLine-tool for this (shp2pgsql.exe ), but all it does is generate a huge SQL-textfile that you will need to run afterwards-not very efficient I think-especially with the ascii-Representation of the geometry. furthermore I 've had several problems with

Problem with label layer Tags: General Topics Iako1May 30 2007At 4: 46 PMEdited May 30 2007At 11: 16 PM Hi there, I 've got a map that shows the provinces of a region. my map is composed of 2 layer: a vector layer and a label layer. I 've a problem with the label layer, because sometimes I 've got a province's name that appear in great measure in another province. is there a way to put a name inside the province's boundary? I 've got only a

Data is the basis of GIS, and data access is also the prerequisite for any complex spatial analysis and spatial visualization. ArcGIS supports a wide range of data formats, and supports a wide range of data formats. This article describes how to access the following eight data formats in ArcGIS Engine. Readers who have some knowledge about ArcGIS desktop applications are more suitable for reading this article. The sample code in this article is written in C. *

Note: most of this part of content or information is collected on the Internet. It was previously stored on your computer, and you do not know the source! Summarize and share it with the people who need it, because some of the knowledge is used in the project development (such as the question. The project supports the conversion between ArcSDE, shape, and rdmbs (based on Oracle10g). This function module is available in space data management, if you want to implement the mutual conversion between

situations are appropriate for each method: IFeatureDataConverter-Use when copying a single dataset or feature dataset and fine-grained control is necessary. this operation des applying a query filter to restrict the rows that are copied, modifying the geometry definition, and applying a configuration key. also useful for transferring datasets from one data source to another.IGeoDBDataTransfer-Use when copying one or more geodatabase datasets within the same geodatabase or to another geodatab

The geomedia database is in the shapefile format. The field name is truncated. The shapefile specifies that the field name must be less than 10 English characters long. Solution: import the shapefile to Supermap, create a new field, and copy the original content. Projection conversion: After Gaussian lüge projection is implemented in China, some stations cannot