Shapefile shp can be converted in pgsql file using shp2pgsql command line tool. Sometimes you have a shapefile and want to upload the same in postgresql database, you can directly use shp2pgsql command and upload shapefile to postgis. While there might be possibilites that you would not be having access to your production server to install shp2pgsql command line tool, so you can convert shapefile into a sql file and then upload the same to Database. Lets check how to convert shp to sql file.
For executing this command you need to have shp2pgsql utility in your system. You can check the presence of utility by typing shp2pgsql in terminal. If this utility is present then you will see the following result.
Convert- Shapefile Shp to SQL postgersql file
Shp2pgsql has some option, some for them are used here. Option -I creates a spatial index on the geocolumn. Option -s specifies the SRS (Spatial Reference system) in EPSG (European Petroleum Survey Group) number.
After executing this command, you can run the sql file in postgres to insert data in table.
Code – Convert- Shapefile Shp to SQL postgersql filE
If you know to read binary files by knowing its format, you can easily read and convert shapefile to sql, as shapefile has an open standard file format. For instance, you can look over tutorial I had created in how to read shapefile bounding box using c++ or reading shapefile header.
In codeigniter framework of php, we can use shell_exec() by providing command as input. In command we need to export PGPASSWORD, where password is supplied.
While writing command in PHP, we need to take SRS (Spatial Reference system) of shape file, input shapefile and output file name from the user. The passwrThen query is written in string format and supplied to shell_exec() method. This method returns output as string and generates file in folder.
PGPASSWORD behaves the same as the password connection parameter. Use of this environment variable is not recommended for security reasons, as some operating systems allow non-root users to see process environment variables via ps; instead consider using the ~/.pgpass file. For more detail you can visit https://www.postgresql.org/docs/9.1/static/libpq-envars.html link.
public function shptosql($shpfilepath,$output){
$srs=4326;
$query=”export PGPASSWORD=’download1′; shp2pgsql -I -s $srs $shpfilepath $output > $output.sql”;
shell_exec($query);
}
You can check for SQL file in the same folder where shapefile is kept. The generated result will look like-
Convert- Shapefile Shp to SQL postgersql file
Change coordinate system – shp to sql
While converting shapefile into sql, you can not change the coordinate system. But you can execute this process in two steps as-
Hope you enjoyed the conversion and executed it successfully. Let us know you face any difficulty during execution of this tutorial via commenting in provided box.
Many people uses MapServer as their Server, so they might need to store shape file as MIF (Map Info File) file on server. The OGR Simple Features Library allows MapServer users to display several types of vector data files in their native formats. For example, MapInfo Mid/Mif and TAB data can be seen on MapServer when using OGR support with it. So lets see how to convert Shapefile shp to mif or map info file.
Lets look what is MIF ( MapInfo Interchange Format) Before converting shp to Mif
MIF (Map Info File) File format used by MapInfo mapping and geographic analysis software. This stores a map visualization in a format that can be recognized by third party applications. Also used as an exchange format between GIS applications. This sometimes accompanied by a .MID (MapInfo data) file that contains additional spatial data. MID files are GIS data files created by MapInfo, a spatial data analysis and visualization software, saves spatial data for a corresponding .MIF (MapInfo Interchange Format) file. Also used for storing larger data sets not expressed in the MIF file. What is Shapefile – collection of geometry with other supported files as shx, dbf, prj ect.
MIF file show some general property when open with QGIS software, as like :
i.) Storage type of this layer
–> MapInfo File
ii.) Description of this provider
–> OGR data provider (compiled against GDAL/OGR library version 2.2.2, running against GDAL/OGR library version 2.2.2)
iii.) Source for this layer
–> /var/www/html/PHP_pgrouting/public/shpfolder222/newwhello.mif
iv.) Geometry type of the features in this layer
–> Line
v.) The number of features in this layer
–> 19148
vi.) Capabilities of this layer
–> Fast Access to Features at ID, Presimplify Geometries, Presimplify Geometries with Validity Check
vii.) In layer spatial reference system units
–> xMin,yMin 68.4982,7.92528 : xMax,yMax 97.3348,35.5013
viii.) Layer Spatial Reference System
–> +proj=longlat +datum=WGS84 +no_defs
Convert Shapefile SHP TO MIF format using ogr2ogr utility-
ogr2ogr supports some file format MIF is one of them. You can write a simple command to convert your shapefile. Before this you must check for ogr2ogr utility. That can be done by typing ogr2pgr in your terminal.
Convert- Shapefile Shp to MIF – Map Info File
If this utitlity is not available, you should run the given commands-
You must have shp along with .shx and .dbf file for proper conversion.
If you only have shp file you will got an error something like.
Convert- Shapefile Shp to MIF – Map Info File
And if you don’t have .dbf file, then you following error will appear
Code to Convert Shp to MIF
If you are aware of reading binary file by knowing the file format, you can easily read and parse shapefile and convert the same to any other format. You can check out one such tutorial which I had created to read header of shapefile using c++ or bounding box of shapefile using c++.
This same work can be done in PHP using shelll_exec() method, which execute the command and gives output as string. The following function describes the $query variable, which takes command as string and given to shell_exec(0 method.
public function shptomif($shpfilepath,$output) {
$query=”ogr2ogr -f ‘MapInfo file’ $output.mif $shpfilepath.shp”;
shell_exec($query);
}
Output of mif file from shp file-
The Output will contain .mif and .mid files. You can open MIF file in QGIS software.
If you are using Windows operating software than you can open .mif (Map Info File) with microsoft word. The following result will appear
Version 300
Charset “Neutral”
Delimiter “,”
CoordSys Earth Projection 1, 104
Columns 7
MED_DESCRI Char(254)
RTT_DESCRI Char(254)
F_CODE_DES Char(10)
ISO Char(7)
ISOCOUNTRY Char(54)
Length_km Decimal(11,2)
Latitude Decimal(11,2)
Data line(…..)
Change Coordinate System of MIF from shp format
Converting shapefile into MapInfo File with desired coordinate system can be done by using ogr2ogr utility. It has some options related to SRS (Spatial reference system), given below-
Sometimes we just need to see attribute details not geometry. So instead of carrying heavy shape files we can convert them in XLSX format. XLSX file contains on attribute detail or can say non spatial data. XLSX files are light in weight. Along with shp to xlsx convert you may also check for shp to ods, shp to csv conversion which also more focuses on attribute details.
KNOW ABOUT XLSX AND SHAPEFILE format -BEFORE CONVERTING SHP TO XLSX
An XLSX file is an Excel spreadsheet created by Microsoft Excel or another spreadsheet program. It stores data in worksheets, which contain cells arranged in a grid of rows and columns, and may also contain charts, mathematical functions, styles, and formatting. XLSX files create simple or complex mathematical models.
What is shapefile? Each object within a SHP file contains an individual geographic feature and its attributes.
Conversion from shapefile to XLSX using ogr2ogr utility-
In command -f is file format and XLSX is driver. Then you can specify the output file name with .xlsx extension and input shapefile. This command can be executed on terminal or using PHP code. Here you must look for the ogr2ogr utility in your system. If not available you can install it using given line of code.
Then you can check the presence of utility by typing ogr2ogr in terminal. The output will look like-
SHP to XLSX
Note that while converting shapefile to XLSX, you must check for .shx file. If shx file is not available you may get following error.
Shapefile has some supporting file like .dbf, .shx, .prj etc. So you must take all file whenever you perform conversion.
PHP CODE – SHP to XLSX
If you are aware of Shapefile Open description format, then you can easily access shapefile data through coding. As i have created one such shapefile minimum bounding box parser in c++. Below in the php code to execute ogr2ogr tool.
Here you can perform the conversion using shell_exec() method, which actually executes the command and returns string as output.
public function shptoxlsx($shpfilepath,$output) {
$query=”ogr2ogr -f XLSX $output.xlsx $shpfilepath.shp”;
shell_exec($query);
}
After execution of command you can check the specified folder to see generated xlsx file. The content of file will be something like-
Hope you enjoyed the article and successfully converted shape file into XLSX file. If you have any problem regarding conversion please feel free to write in comment box.
Shape file to ODS (Open Document Spreadsheet) conversion is required when you only need non spatial information i.e. only attribute information. This conversion need ogr2ogr utility. Or you may also you any other tool to convert shp to ods easily.
What is ODS (Open Document Spreadsheet) and Shapefile-Shp to ODS CONVERT
An ODS (Open Document Spreadsheet) file is a spreadsheet. It stores data in cells that are organized into rows and columns. ODS files are formatted using the OASIS Open Document XML-based standard. Whereas shape files are collection of geometry with non spatial data as attributes.
To install ogr2ogr utility you can follow the given lines of command.
Then check for presence of ogr2ogr utility by typing ogr2ogr in your terminal.
Conversion- Shapefile shp to ODS (Open Document Spreadsheet) using Ogr2ogr utility-
Here, in the command -f is the option for file format.
Note that while converting shx file should be present in same folder where shp file is kept. Otherwise you will get error like-
All the supported file (.shx, .prj and .dbf etc.) should be kept together while performing any conversion.
Code- Convert shp to ods
You can use any programming language to convert between shapefile to ods, if you know the format of shapefile and ods file. I have created one such minimum example of code to find the minimum bounding box of shapefile with c++ programming lanauage. Below is the php code.
public function shptoods($shpfilepath,$output) {
$query=”ogr2ogr -f ODS $output.ods $shpfilepath.shp”;
shell_exec($query);
}
The generated output can be seen in the same folder, where shapefile is kept. Output will look as-
Hope this post is helpful for you to convert shp to ods document. If you find any difficulty in implementing the conversion of shapefile to open document spreadsheet, let you know by commenting below in the box provided.
Shape file shp to GML conversion is required when you carry data from one place to another. Shapefiles are heavy as compared with GML (Geography Markup Language). On the other hand we can say that GML makes you able to do many of the same things that you would do with heavyweight desktop GIS files.
GML (Geography Markup Language) is about describing kinds of geographic objects. This is XML based language that contain two part- the schema that describes the document and the instance document that contains the actual data. GML schema allows users and developers to describe generic geographic data sets that contain points, lines and polygons. Using this schema user can differentiate between geometry primitives.
GMl format composed of geometry property and attribute detail in feature member tag. Here geometry defines which primitive is available in data. Whether it is point, line or polygon. These can be multilinestring or multipolygon. The given line of GMl defines the lineString, contains attributes as MED_DESCRI, RTT_DESCRI, F_CODE_DES, ISO and ISO_country in ogr tag. The srsName(Spatial reference system name) is given is file for each geometry as EPSG number.
LineString as Example of GML file Describing feature – Know Before performing shp to gml convert
Convert shapefile Shp to GML (Geography Markup Language) using Ogr2Ogr –
For converting shapefile in GML format you need to have ogr2ogr utility in your system. If this is not available you can follow the given procedure.
Convert Shapefile shp to GML – Geography Markup Language
After installing, you can check the availability of ogr2ogr in terminal by typing ogr2ogr, then you will be able to see the following result.
Command Line conversion – shp to gml-
Now, to convert Shapefile to GML you need to execute the following command-
In this command -f is the output file format i.e. GML then specify the output file name with .gml extension and after that input shapefile name with .shp extension. Note- while executing this command you must check for .shx file, which contains the positional index for geometry objects.
Code- Convert shp to GML
If you want the conversion using programing or don’t want to use terminal then this can also be done using PHP. You can create a function that defined this command as string and can give this string in shell_exec() method to execute. Shell_exec() actually execute the command and returns output as string.
public function shptogml($shpfilepath,$output){
$query=”ogr2ogr -f GML $output.gml $shpfilepath”;
print_r($query);
shell_exec($query);
}
The GML output file will be something like this-
Change coordinate system of GML file from shp-
Many of times, we need the output file in other coordinate system. For this we can use options of ogr2ogr utility. It has
-t_srs srs_def:
Reproject/transform to this SRS on output
-s_srs srs_def:
Override source SRS
So using these option, we can get the data in required coordinate system. So for this you can write the query as-
Shapefile shp can be converted into GPS ( Global Positioning System) using ogr2ogr utility. The GPS data is best option when routes and tracks are required in XML format. Here we will check how to convert shapefile shp to GPX / GPS.
Convert Shp to GPX – Using IGIS Map Tool
Go to Igis Map Conversion Tool . Login with registered id and password or if you are new then register with valid email id. Then tap on Switch To button select conversion in the drop down list.
Upload your file from system or drive or from drop box. After uploading the file choose the output format. And in the last click on Convert File button. You will be directed to the map where converted file is published.
Download the converted SHP to GPX file from the download icon. For detailed conversion watch the video provided below.
Details for GPX/GPS (GPS Exchange Format) and Shapefile Format Before Converting Shapefile to GPX GPS data-
GPX (GPS Exchange Format) is a light-weight XML data format for the interchange of GPS data (waypoints, routes, and tracks) between applications and Web services on the Internet. Shapefile is collection of geometry with attributes mainly comprised of three files .shp for which stores geometry, .shx which stores index and .dbf which stores data of respective attributes.
The example is given below for linestring feature of gpx version. Here metadata contains the bounding box with min (lat,long) and max (lat, long). The tag trk defines the tracks, which contains extension tag, trkseg tag and trkpt tag. Here extension tag contains all the attributes in ogr tag with values. Trkseg tag is the track segment, which is composed of track points with latitude longitude.
Convert- Shapefile shp to GPX / GPS- Global Positioning System
Convert shp to GPX /GPS using ogr2ogr utility-
Ogr2ogr utility has some options some of them are give below,
-dsco NAME=VALUE:
Dataset creation option (format specific)
-nlt type:
Define the geometry type for the created layer. One of NONE, GEOMETRY, POINT, LINESTRING, POLYGON, GEOMETRYCOLLECTION, MULTIPOINT, MULTIPOLYGON or MULTILINESTRING.
-f option:
format_name
GPX_USE_EXTENSIONS:
By default, the GPX driver will discard attribute fields that do not match the GPX XML definition (name, cmt, etc.).
If GPX_USE_EXTENSIONS=YES is specified, extra fields will be written inside the <extensions> tag.
If you don’t have ogr2ogr utility in your system please execute the given commands to install ogr2ogr,
Check the presence of utility by typing ogr2ogr in command prompt-
Code to Convert GPX GPS from Shp
The conversion thing can be done in PHP using shell_exec() method, given below-
public function shptogpx ($shpfilepath,$output,$type) {
$query=”ogr2ogr -f GPX -dsco GPX_USE_EXTENSIONS=YES $output.gps $shpfilepath.shp -nlt $type”;
shell_exec($query);
}
Change coordinate system of GPS/GPX file-
Changing coordinate system using ogr2ogr is a one of the simple task. It has various option, here two are given, which will help to convert the coordinate system into desired one.
-t_srs srs_def:
Reproject/transform to this SRS on output
-s_srs srs_def:
Override source SRS
So using these option, we can get the data in required coordinate system. So for this you can write the query as-
GeoPackage is an open, standards-based, platform-independent, portable, self-describing, compact format for transferring geospatial information. Whereas shapefile is collection of geometry with attribute detail. Here in this article, we will check how to convert Shapefile to GeoPackage or GPKG GIS format.
The GeoPackage Encoding Standard describes a set of conventions for storing the following within an SQLite database:
1. Vector features
2. Tile matrix sets of imagery and raster maps at various scales
3. Attributes (non-spatial data)
4. Extension
Convert Shapefile to GeoPackage – GPKG
You can open the gpkg (GeoPackage) file in QGIS software and see some of the general properties of gpkg (GeoPackage) file-
1. Storage type of this layer
–> GPKG
2. Description of this provider
–> OGR data provider (compiled against GDAL/OGR library version 2.2.2, running against GDAL/OGR library version 2.2.2)
3. Source for this layer
–> /var/www/html/PHP_pgrouting/public/outputllll.gpkg
4. Geometry type of the features in this layer
–> Line
5. The number of features in this layer
–> 19148
6. Capabilities of this layer
–> Add Features, Delete Features, Change Attribute Values, Add Attributes, Delete Attributes, Fast Access to Features at ID, Change Geometries, Presimplify Geometries, Presimplify Geometries with Validity Check
7. Extents
–> In layer spatial reference system units
xMin,yMin 68.4982,7.92528 : xMax,yMax 97.3348,35.5013
8. Layer Spatial Reference System
–> +proj=longlat +datum=WGS84 +no_defs
Convert Shapefile to GeoPackage – GPKG using OGR2OGR-
The command has some options, which can be seen by typing ogr2ogr in terminal. If this gives you error that means you don’t have ogr2ogr utility in your system. To install that you can follow the statements given below-
If Ogr2ogr utility is available, you will see the following result.
The command is given as-
–> ogr2ogr -f GPKG outp_gpkg.gpkg India_raods.shp
The command contains Utility name, option for file format, name for format, output file with .gpkg extension and input shape file.
To install ogr2ogr utility-
Convert Shapefile to GeoPackage – GPKG
To check if ogr2ogr utility is working properly or not-
PHP Code to Convert Shapefile to GeoPackage – GPKG-
Using shell_exec() method, you can run the command in PHP. This return output as string.
public function shptogpkg($shpfilepath,$output) {
$query=”ogr2ogr -f GPKG $output.gpkg $shpfilepath.shp”;
shell_exec($query);
}
The output file can be open in QGIS software. I have converted Road File of one such country. Here is the output look in QGIS tool after Converting Shapefile to GeoPackage.
Change Coordinate system of Output-
Many of times, we need the output file in other coordinate system. For this we can use options of ogr2ogr utility. It has
-a_srssrs_def:
Assign an output SRS
-t_srs srs_def:
Reproject/transform to this SRS on output
-s_srs srs_def:
Override source SRS
So using these option we can get the data in required coordinate system. So for this you can write the query as-
ESRI shapefile are the binary vector data storage format for storing the location, shape, and attributes of geographic features. It is stored as a set of related files and contains one feature class. Whereas TopoJSON (topological geospatial data) is an extension of GeoJSON that encodes topology. The necessity of conversion is to reduce the size of data. While using Shapefile, you have to take care of all its mandatory files such as .shp, .shx, .dbf, .prj etc. Whereas GeoJSON and TopoJSON formats are single file formats.
There are many online and desktop application based solutions to do this conversion. But the method everyone looking forward is an easy way to convert a file to a preferred format. In this article we will see how easy is IGISMAP for the conversion process. Following are the methods to convert Shapefile to TopoJSON using IGISMAP Converter tool.
IGISMAP to Convert Shapefile to TopoJSON
Go to IGIS Map Tool, after logging in with your registered email and password. If you are a new user, click the Sign Up button in the Login popup and register to IGISMAP by filling the details.
There are three main steps for using GIS Converter:
Upload the data
Choose the format to which it should be converted
Download the converted file.
Step one is to upload your Shapefile which you want to convert. You can upload the file from your system or select from the Recent Files.
Upload Shapefile
Here we using the Shapefile of India state level boundaries with demographic information. You can find this data in IGISMAP GIS Data Collection –
Step two is to select choose the output format of the converted file, in this case its TopoJSON. You can also set the Coordinate Reference System of your preference. As a default CRS will set to WGS 84 (World) [EPSG:4326]. Click on the Convert File button.
Select TopoJSON as Output Format
Your Shapefile will then get converted to TopoJSON file after a few seconds and will be published in the map canvas. You can download the TopoJSON file of New York state boundary by clicking the Download Converted File button.
Download and Publish TopoJSON File
You can also choose to style the layer or continue with further conversion process by clicking the Convert Another File button.
Converted Files section from the dashboard contains the list of the details of all the conversion done in your account, providing both input and output data available for download their corresponding formats.
IGIS Map Converter Tool provides many benefits other then just conversion of data. This tool provides us to generate this published map in PDF or as image format.
Info GIS Map supports most of the commonly used GIS or AutoCAD files like Shapefile SHP, KML, KMZ, CSV, TopoJSON, GeoJSON, GML, DXF, GeoTIFF, NetCDF, GRIB, HDF5, OSM, PBF, and many more raster and vector files, along with that it support more than 4000 Coordinate Reference System.
Here are other two ways to convert shapefile to topojson
Offline Method : Convert Shapefile to topojson through GDAL and then through geo2topo tool npm:
To convert shape file to topojson format offline you need to download GDAL and Node.js. First step is to convert shapefile to geojson data format, which is done by using ogr2ogr command available in GDAL package. After successful installation check ogr2ogr availability by typing ogr2ogr in command prompt or by typing dir that will show all available directories.
Now you can convert shapefile to geojson data format by using given command
Ogr2ogr –f Geojson file_name.json input.shp
Here –f option is used to shows the file format, which shows output file format is geojson. GDAL takes name of output file prior to input file.
After this you need to install topojson-server for conversion of data that can be done by using
npm install topojson-server command
Now all setup is ready
Use geo2topo command to convert geojson data to topojson data
geo2topo –o geo.json topo.json
Here –o option is used to give the output. If command doesn’t run and gives error as no such file or directory. Then specify full path for file for both input and output. The older versions were having topojson as a command to convert geojson data format to topojson data format. Topojson is named as geo2topo command in new version.
Convert Shapefile to TopoJSON – Online Method
Mapshaper is an online tool that converts shape file to topojson data format directly. You only need to drag the shape file to http://mapshaper.org/ site. Then use export option to convert this data into topojson format. In Mapshaper there are many option are available to simplify the geometry, which you can explore.
I hope this article helped you in converting the file from Shapefile to TopoJSON. If you find any problem in performing operation do let me know by commenting below.
Convert GeoJSON to TopoJSON. GeoJSON is an open standard format designed for representing simple geographical features, along with their non-spatial attributes, based on JavaScript Object Notation. The need of conversion is to reduce the size of data, so that rendering of data on browser can be made faster. TopoJSON (topological geospatial data) is an extension of GeoJSON that encodes topology. Here we have explored two methods for conversion of GeoJSON to TopoJSON (i.e. online and offline).
Offline Method to Convert GeoJSON to TopoJSON:
You can directly convert GeoJSON to TopoJSON with the help of topojoson-server node package manager. For using this package you need to first install node js in your system (can be installed in windows, linux based operating system or Mac).
NPM (Node Package Manager) is a command-line utility that aids in package installation, version management, and dependency management or can be considered npm as a tool that helps to install another tools like topojson-server.
For this method you need to download node.js which is available https://nodejs.org/en/ here. After successful installation you need to check npm availability using command
npm –check.
If not available use
npm install -g npm-check
convert geojson to topojson
After this you need to install topojson-server for conversion of data that can be done by using
npm install -g topojson-server
Now all setup is ready
Use geo2topo command to convert geojson data to topojson data
geo2topo –o geo.json topo.json
Where geo.json is the geojson file i.e input file and topo.json is the file we are creating with the name topo as topo.json file i.e output file.
Here –o is output. If command doesn’t run and gives error as no such file or directory. Then specify full path for file for both input and output. It is recommended that you run this command from the same directory where geo.json file is stored.
If you don’t have any input files ready or any geojson or shapefile then you can download free GIS data fromat for testing this article.
Online method: Convert GeoJson to TopoJson
This is the simple and fast method. For the conversion you just need to drag the geojson file in http://mapshaper.org/ site. Then use export option to convert this data into topojson format. Map shaper website render and convert the file in the browser itself, but it you might face problem while converting a big geojson file.
I hope that this methods listed above to convert geojson to topojson would have helped you in achieving result. If you find any problem or know any other method to perform this operation and want to share with us, then do let us know by commenting below, in the box provided.
Convert Shapefile to GeoJSON. Shapefile, ESRI made a standard vector file format which is largely adopted in the field of GIS by programmers and geographers . While GeoJSON is also an open standard format designed for Web which largely supported with GIS JavaScript API, other programming API and with GIS (Geographic Information System) software tools too, for easily rendering. GeoJSON is based on JavaScript Object Notation. Here we will explore different methods to convert the files online, or offline or with the help of API which programmers can make use of.
You may be interested to refer following articles:
The simplest and fast way to access the internet is through the online method, as you don’t need to install and configure any tool on your PC. Just drag the Shapefile files, one click on button and convert to GeoJSON. There are many website which provides the tool to convert the files by browsing them to server side and convert and also some client side conversion too. Lets explore the list, which is only client side as client side conversion will secure your file and doesn’t take your data pack for uploading the file:
If you are already registered then login otherwise sign up.
Once get register tap on Converter Button Shown in figure.
Upload the Shapefile from data set or Google Drive or Drop Box or already added in drive then choose the file. Lets we want to convert already uploaded file from My Drive then select the file.
Tap the file and new window will appear shown below.
Select the desired Output in our case choose Geojson. You can also change CRS. Now tap on Convert file button.
It will so the table in the next step. You can directly download the converted file or you can check it through clicking on publish button.
Below is the screen of published Geojson file.
Whole process is same from new uploaded file from data set or from google drive or from drop box. If you face any problem ping us at website.
You might be interested in Query on Geojson data file then try our tool IGIS Map tool.
This is presented by Engineer Philosophy pvt. ltd, working in GIS Sector an IT company. What you need to do is to just Register, login and upload only .shp and .dbf file and then export the uploaded layer to GeoJSONfile by just selecting the option which appear at upper right corner in Navigation bar. You can also explore the attribute table from the website directly and filter the same which no other online tool provides.
different ways to convert Shapefile to Geojson – Online or Offline or API
Not only this, but you can classify the Map according to the shapefile dbf attributes and automatically classify and color it. The classified map can be exported as Scalable Vector Graphics i.e svg file.
Disclaimer: The above project is handled by me and my team and the project is in beta phase while you can definetly convert the shapefile to GeoJSON at client side securing your shapefile data. I would welcome your suggestion to improve the tool by commenting below or contacting me.
Map Shapper is the best tool which we should refer first. It is the best online tool which also handles large shapefiles and renders it quickly. Its an open source project and is licensed under MPL 2.0. Just drag the shapefile or zipped shapefile which will render the shapefile on map and can be further exported as geojson file with the option provided in tool itself.
With No doubt Map Shaper is much more better than any other tool for now, while the only reason why I placed this tool in second place just because the first tool was my own tool which provides more option for classifying the map, see all attributes in the data table and also exported as svg file.
2.) Offline Method – Convert Shapefile to GeoJSON in QGIS:
1.) Open QGIS Desktop and Select Layer -> Add Layer -> Add Vector Layer or click on Add Vector layer icon appears at the upper left in the application.
different ways to convert Shapefile to Geojson – Online or Offline or API
2.) Select the zipped shapefile or any of file i.e .shp or .dbf or .shx by browing the folder. Note, that all the three files i.e .shp, .dbf and .shx file should be present in the same foder with same name.
3.) Once uploaded, the map will be rendered and showed in QGIS application. Now navigate to Layer menu and select Save As option or just from the layers panel select the layer and right click from it to select Save As option.
4.) A window pop up will opne up. From the window just select the GeoJSON format and provide the name of the file in the input box as shown in the image provided below. Save the file. It will export the file in GeoJSON format.
3.) Offline Method – Convert Shapefile to GeoJSON with command line ogr2ogr tool:
Firstly you need to install an ogr2ogr tool of GDAL which is a GIS utlitly command line tool so as to convert one file to another. Now if the ogr2ogr is installed globally check by simple tying the ogr2ogr in command line if it is working or not. Or if it residing in some file system you need to navigate to ogr2ogr file and type in the same in command line. Now Just type in the following:
To get more option list and format you may see this gdal org link.
This tool will be helpful if you want to convert bulk files from shapefile to geojson. You can refer the .sh script found at github.
4.) Convert Shapefile to GeoJSON -API or library:
Shapefile is a binary file and cannot be viewed directly in notepad or textpad as like with GeoJSON file. So if you want to create your own API, to convert Shapefile to GeoJSON you should first have a knowledge of how to read the binary shapefile. You may refer to some of the articles which I have written some post which would help you to get the basic knowledge to know the format of files and read.
https://github.com/gipong/shp2geojson.js : This library is also MIT Licensed and is inspired by the above wavded library which uploads zipped file of shapefile. The library provided an example to use with leaflet js.
https://github.com/mbloch/mapshaper : Map Shaper as desricbed above is licensed under MPL 2.0 and can be very useful if you want to convert to GeoJSON as well as TopoJSON.
Hope this article helped you. If are facing some problem in converting the shapefile to geojson do comment below with the problem statement. We will definitely look over that. Also you can provide your valuable comment below if you are using any other library or tool to cover the same.
