Owner and Director of a Private Limited company which serves individual to large scale industries in the field of Maps and GIS. He is a Gold Medalist in M.Tech(Spatial Information Technology) and owns some famous Technology blogs and website... Know more
When do you need to add Custom CRS projection to add in QGIS? After all QGIS supports more than 2700 predefined CRS – Coordinates Reference system. Which is very common and is also installed in PostGIS database. But there are times when you receive a GIS data files in different CRS or projections or when somebody or your clients wants the GIS data files in a different CRS. At this time you may enquire to look into Custom CRS.
I got the same case, when one of my client was trying to convert a GML file to KML file. It would be a different topic to understand or find the CRS of GIS file. When my client asked for the problem they were facing while using the tool, I had jumped over to find the issue to solve it. As the file the user was trying to convert was GML file, which can also be opened in Text editor, I was able to easily figure out the projection the file is in. Which I found is very rarely used and it was not supported by the tool then. Finally we had converted the file from backend and was able to successfully resolve the clients problem.
Let me give you step by step procedure to make a file supports custom CRS and render it accordingly in QGIS.
Steps to Add Custom CRS projection in QGIS
1.) Open up QGIS. On the top Navbar of QGIS, select Settings option and click on Custom CRS or Custom Projection option. (In both version of QGIS 2.x or QGIS 3.x you will be getting this options for Custom CRS projection). This will open up a new Window in QGIS with different options.
Setting option – Add Custom CRS projection in QGIS
2.) In the window, click on + or plus sign and give a name to the CRS. And under parameter option, put the values in proj4 definition of CRS.
Option to add – Add Custom CRS projection in QGIS
Most of the time, you will be able to get the projection value in WKT format and not in proj4 format. While to add custom CRS QGIS supports proj4 format to be added.
For example here, in my case, I was know that the GML file is having the PCS_Lambert_Conformal_Conic projection. And for the same to support in QGIS, I wanted get to the proj4 value of PCS_Lambert_Conformal_Conic. So I was able to find out the link to get the wkt of PCS_Lambert_Conformal_Conic. Somehow I was not able to get the proj4 which this website support.
So I converted wkt to proj4 format of CRS with gdalsrsinfo open source tool of GDAL.
gdalsrsinfo -o proj4 example.prj
Example – Add Custom CRS in QGIS
Once done save the changes. QGIS also provides a testing tool, where we can provide the WGS 84 coordinates and get the coordinates of newly added custom CRS projection.
3.) Now after adding the custom projection or custom CRS, you can find the option to change the CRS of the layer or file added. That is, right click on layer and click on Set layer CRS. Search and Select the custom CRS or projection Added.
Selection – Add Custom projection in QGIS
This would make your file to work properly, as how you want it.Hope this tutorial helps you to Add Custom CRS or Custom Projection in QGIS, and render or display the file properly. If you found any issue while performing the steps please comment below.
The Map Analysis tool of IGISMAP is the number one alternative of Carto Platform. Carto is one of the GIS Cloud Software as a service platform, which provides many functionality, but you will get many other reasons for which you might be looking for the alternative of Carto. Either looking for effective pricing and team management without enterprise plan, IGISMAP has many benefits over carto.com. In general both tends to achieve the same purpose, i.e., either creating and sharing or embedding maps without writing any code or getting it achieved through the use of APIs. But there are few points which you might look into IGISMAP as a preference over Carto.
Lets find out all the best possible reasons why IGISMAP can be a better choice for you in comparison to Carto Database.
Cost Effective:
IGISMAP is 10 times cheaper than Carto. Carto cost you $299 for a month subscriptionfor 500MB of data, IGISMAP cost you just $19 per month for the same 500MBof data. Similarly if you look for annual subscription, carto will cost you $2388 while IGISMAP will cost you just $190, i.e., you will save $2198. Here we only talked about one paid plan named as Basic, just to compare with Carto. IGISMAP has 3 more plans other than Basic and Free. Check IGISMAP Pricing Page to more about their features. IGISMAP data plans are developed based on the present day requirements of users in various business firms. IGISMAP tool covers all features that all major GIS cloud solutions as well as desktop applications provide.
What else? IGISMAP Analysis provides multiple users add supports, i.e., adding Administrators, Developers and Business user to access map where only Administrator can make changes and others can perform analysis and extract information. The secret of IGISMAP USP is the effective Pricing with more features.
Supporting both Vector and Raster Data Formats:
Data formats used in geospatial technology can be categorized into raster and vector formats. IGISMAP supports both raster and vector data formats whereas Carto does not support the raster files. This makes stand out of Carto. While both tool are capable to supports all kinds of vector data like CSV, Excel, ESRI Shapefile, KMZ, KML, GeoJSON (TopoJSON which only IGISMAP Supports), MapInfo, GPX and many more.
IGISMAP Data support – Carto alternative
Digitize and Create your Map in IGISMAP:
IGISMAP Analysis tool supports to digitize and create point, line and polygon layer separately. Unlike Carto and other online mapping system tool. Generally you will get this functionality in GIS desktop application like QGIS, ArcGIS etc. Here at IGISMAP Analysis you will also be able to add the data to existing layer, edit the attribute and delete the layers. You can also create a survey system with the layers you provide so that the your developers can add more data on your layer and can contribute easily.
Click to learn more about creating point, line and polygon in IGISMAP
More Data Storage:
IGISMAP provides 30 times more storage as compare to Carto plan. The basic paid service of Carto charges $299 per month and provides 512 MB of storage, whereas the highest monthly plan of IGISMAP is just $99 providing 10 GB storage service. Along with such a huge difference in pricing and storage, This efficient storage at this cheaper rate is provided with no compromise in security for the data of customers. IGISMAP Analysis Cloud system is hosted on AWS servers with the premium infrastructure used and with 100% uptime and availability of server.
Dedicate Support Service:
IGISMAP support is responsive and make sure to solve each and every query of the customer. Along with that, we at IGISMAP also supports and helps to create Maps for you. A dedicated customer support manager is assigned to every one of the customer and customer will be able to communicate easily if they face any issue. We can be contacted by email or our personalized chat box 24/7. While Carto support basic customer support at specific timing. For a dedicated support you need to be Carto Enterprise customer.
Comparison table between IGISMAP and Carto plans: Alternative of Carto – IGISMAP Analysis Tool
This table will provide only key difference between IGISMAP and Carto which we feel should be highlighted. Rest other major features are supported by both the platform.
IGISMAP $19/month plan
IGISMAP $99/month plan
Carto $299/month plan
Storage
500 MB
8 GB
500 MB
Maps
Unlimited public/private maps
Unlimited public/private maps
10 Public Maps/ Unlimited Private Maps
Raster Data Support
Yes
Yes
No
Additional Users
Yes (Admin, Developer, Business User)
Yes (Admin, Developer, Business User)
No
Access Control
Yes
Yes
No
Support
Dedicated Email support
Dedicated Email support
Basic Support
Price (Yearly Plan)
$16/month
$82/month
$199/month
IGISMAP Analysis TOOL stands as best alternative of Carto – Here are more points to cover:
No coding skills required – Just drag and drop your data and few clicks to create your Map
Simple and Easy User Interface
Multiple Base map supports
Ultimate Query and Analysis Tool
Best Data security and User access control feature
Multi roles support – Admin, Developer or Business User
User Cloud data security is our first priority – Scalable and reliable
Are you looking location and spatial based solution for your business such as map your stores, regional analysis of sales data, estimate real estate properties behavior, customer territory design, catastrophic analysis for insurance companies, generating routes for your logistic business and what else. You can easily create your map with IGISMAP Cloud platform. And you can do it yourself or ask a team of our expert to help you in consulting for doing the same. You don’t need any other third party GIS Team or in house team to be expert in GIS nor require any developer who is expert with Coding skills.
Try for Free – IGISMAP Analysis – Carto Alternative:
Give IGISMAP a try. Evaluate the tool for free without giving credit card details. Also contact with team of IGISMAP if you found any issues or have just an idea for creating map. We at IGISMAP will look forward to help our customer.
The Map Analysis tool IGISMAP is one of the best alternative to ArcGIS Online. There are many benefits of using IGISMAP over ArcGIS Online. Likewise both tend to achieve the same purpose, i.e., even without GIS Skills you can make a map with your data, share the map and can embed in your website, directly without having external team of GIS specialist. But there are few aspect of which you might be looking for alternative of ArcGIS online especially when it comes to pricing and easiness to use.
Are you looking for an alternative to ArcGIS online? Here are the few reasons why you should choose IGISMAP Tool over ArcGIS online.
Cost Effective:
IGISMAP pricing and cost can be seen online from here. Price are transparent, fixed and affordable. While we don’t see the pricing directly in ArcGIS online website. As ArcGIS online didn’t provide any direct cost to view, but we can research the price over the internet and is expected to have the price between $300 to 500 per month or $2500 for annual subscription, whereas the pricing of IGISMAP starts from just $15 per month.
You see, the pricing of ArcGIS online tool is 20 times the price of IGISMAP tool. That’s a huge sum of amount from ArcGIS online, where IGISMAP Analysis tool has almost all important features for creating, analyzing and sharing maps that ArcGIS Online also cover. IGISMAP tool plans typically offer 5x more upload storage than similarly priced ArcGIS plans. This makes a clear win of IGISMAP over ArcGIS online.
Supports More Data Formats
Data formats supported by arcgis
Shapefile (ZIP archive containing all shapefile files)
CSV or TXT files with optional address, place or coordinate locations (comma, semi-colon or tab delimited)
GPX (GPS Exchange Format)
GeoJSON (open standard format for simple geographical features)
data formats supported by IGISMAP
ESRI Shapefile
CSV /Excel
These formats should have location information either as Latitude and Longitude values in separate columns or should be in WKT Format in a single column
MapInfo TAB Format
MapInfo Interchange Format
KML/KMZ
GML
GeoJSON
AutoCAD DXF
GPS/GPX
TopoJSON
GPKG
SQLite
SBF
File formats like ESRI Shapefile and Map Tab Format with multiple supporting files can be uploaded in two ways:
Compress all the format files into a zip file and upload
Select all the format files while browsing and upload
Uploading multiple layers of multiple formats or same formats in a single upload is possible in in two ways:
Compress them in a single zip file and upload
Gather the layers in a single folder and upload
Click here to check more Vector Data file formats list in GIS
Create Unlimited Number of Maps and Upload Unlimited Number of Dataset Layers
You can create unlimited number of Maps and unlimited number of dataset in IGISMAP, with broad level of spatial data support. Instead of credit limits, in data limitation in IGISMAP is based on total number of storage space used. If the layers are not used further, you can just delete the layers or maps which free up the space in your account.
Digitize and Create Your Map in IGISMAP:
IGISMAP Analysis Supports to add and create point, line and polygon layer separately and digitized the data. Unlike ArcGIS online and other online mapping system tool, we at IGISMAP tend to provide the same functionality as provided in Other Desktop GIS tools like QGIS and ArcGIS. You can also create a survey system with the layers you provide so that the your developers can add more data on your layer and can contribute easily.
Dedicate Support Service:
IGISMAP support is responsive and make sure to solve each and every query of the customer. Along with that, we at IGISMAP also supports and helps to create Maps for you. A dedicated customer support manager is assigned to every one of the customer and customer will be able to communicate easily if they face any issue. We can be contacted by email or our personalized chat box 24/7. Products such as ArcGIS can only be contacted via email or telephones at specific timing to provide product and server support.
IGISMAP Allows Unlimited Transactions with Querying and Analysis Tools along with Map loading, freeing you from credit limits and additional charges
IGISMAP Analysis tool delivers multiple tools to extract the information or query the data in your map application with a single click. Under Map tools you will be able to do single click customized ways to change the Base Map or remove Base Map, Querying the Database, carry out Proximity analysis over single layer or multiple layers, search on data, search on map and finally print share your map. And It provides unlimited spatial analysis queries per month which is way ahead than ArcGIS online.
Here is the video demonstrating the Query Tool and Proximity Tool in IGISMAP.
Easy to Use User Interface – Simple and Quick Map Creation
User Interactivity is one of the base motive at IGISMAP Tool. Our developers have reached at all extends to create the tool quick and as simple as possible for the user. User can easily create interactive and beautiful web maps quickly within a few clicks. There are no such complex functions while uploading data sets or publishing your web maps.
What Else Makes IGISMAP Analysis Tool a Better GIS platform
Zero coding skills required
Data security and User access control
Easy to work for everyone
Multi roles support – Admin, Developer or Business User
User Cloud data security is our first priority
Scalable and reliable
IGISMAP is flexible enough to create a mapping project like Store mapping, Real Estate properties Mapping, Analyzing the property Behavior, Checking the value of property for insurance assistance by mapping disaster spatial data through raster or vector data, mapping your own customer through your CMS or by general Excel file, Creating routes for your logistic business from your vehicle to warehouse to the delivery addresses. You don’t need to have a GIS team sitting with you, neither you need a Developer or Designer. Manage add and assign different roles to users in your organization, so as to make proper and secure access to your data and maps. IGISMAP is accessible to all and can be operated very easily and all the tools and features are available right in front of you.
Try it for free, Enjoy for Yourself!
Go to the IGIS Map Tool and try it once for free, no obligation 30 days trial of Our Free service plan. You will not be looking back once you used IGIS Map Tool.
Switching between Google Maps and OpenStreetMap in React Native : In this post I am going to discuss about Google Maps and OpenStreetMap in react native with one example.This example code will just show the Google Maps and OpenStreetMap on the screen of mobile ,but before going to detail of this article I suggest you to read the following page:
Add your API key to your manifest file (android/app/src/main/AndroidManifest.xml):
<application>
<!-- You will only need to add this meta-data tag, but make sure it's a child of application -->
<meta-dataandroid:name="com.google.android.geo.API_KEY"android:value="Your Google maps API Key Here"/>
</application>
In our example ,there are four java script file as follow:
index.js
App.js
GoogleMapScreen.js
OpenStreetMapScreen.js
index.js:
import {AppRegistry} from 'react-native';
import App from './App';
import {name as appName} from './app.json';
AppRegistry.registerComponent(appName, () => App);
In App.js java script file,we are importing component from native-base and React-Navigation 3.x ,we need to install:
Install NativeBase
npm install native-base --save
Install Peer Dependencies
react-native link
Install thereact-navigation package
npm install --save react-navigation
install react-native-gesture-handler :
npm install --save react-native-gesture-handler
Link all native dependencies:
react-native link
In this code , one drawer is created for two screen namely GoogleMapScreen and OpenStreetMapScreen , for more detail on drawer in react-navigation 3.x ,you can refer to following post:
When you will run above Project ,following output will come:
In the header ,we are having menu on left side. On the click of this menu,a drawer will open as shown below:
We are having two option in drawer 1)Google Maps 2)OpenStreetMap. When we will click Google Maps ,Google Map will be on screen as shown by first ScreenShot , now when we will click second option of OpenStreetMap then output will be as shown below:
So, this all about switch from Google Map to OpenStreetMap in react native. Please do comment if something’s missing.
Drawer React Navigation 3.x – react native: In this post we are going to learn about drawer navigation of React Navigation 3.x with one example,, but before going to detail of this article I suggest you to read the official documentation of React navigation 3.x as follow:
In our Project we are having two java script file as follow:
index.js
App.js
index.js :
import {AppRegistry} from 'react-native';
import App from './App';
import {name as appName} from './app.json';
AppRegistry.registerComponent(appName, () => App);
App.js :
import React, { Component } from 'react';
import { View } from 'react-native';
import { createDrawerNavigator,createAppContainer } from 'react-navigation'
import { Button,Container,Header,Left,Right,Icon,Text } from 'native-base';
class MyHomeScreen extends React.Component {
render() {
return (
<Container>
<Header>
<Left style={{ flexDirection: 'row'}}>
<Icon onPress={() => this.props.navigation.openDrawer()} name="md-menu" style={{ color: 'white', marginRight: 15 }} />
</Left>
<Right>
<Icon name="md-cart" style={{ color: 'white' }} />
</Right>
</Header>
<View style={{ marginTop:100,marginLeft:100}}>
<Button onPress={() => this.props.navigation.navigate('Notifications')} >
<Text>Go to notifications</Text>
</Button>
</View>
</Container>
);
}
}// End of MyHomeScreen class
class MyNotificationsScreen extends React.Component {
render() {
return (
<View style={{ marginTop:100,marginLeft:100}}>
<Button onPress={() => this.props.navigation.goBack()} >
<Text>Go back home</Text>
</Button>
</View>
);
}
}//End of MyNotificationsScreen class
const MyDrawerNavigator = createDrawerNavigator({
Home:{
screen: MyHomeScreen,
},
Notifications: {
screen: MyNotificationsScreen,
},
});
const MyApp = createAppContainer(MyDrawerNavigator);
class App extends React.Component{
render(){
return(
<Container>
<MyApp >
</MyApp >
</Container>
);
}
}//End of App class
export default App;
In above code of App.js file we have used component of native base ,and therefore we will install native base as follow :
Install NativeBase
npm install native-base --save
Install Peer Dependencies
react-native link
Explaination of App.js :
In this file App.js, we have define three class namely as follow:
MyHomeScreen
MyNotificationsScreen
App
and two constants as follow:
MyDrawerNavigator
MyApp
We are creating two screen with the help of two class MyHomeScreen and MyNotificationsScreen
In this class we are creating header of screen ,on left side of header we are creating Icon of “md-menu”,and onPress of this Icon we have open the drawer with the help of this code :
class MyNotificationsScreen extends React.Component {
render() {
return (
<View style={{ marginTop:100,marginLeft:100}}>
<Button onPress={() => this.props.navigation.goBack()} >
<Text>Go back home</Text>
</Button>
</View>
);
}
}//End of MyNotificationsScreen class
Explaination of MyNotificationsScreen class :
In this class we are creating a button ,and on press of this button we are going back to home screen from this notification screen ,for this we are using following code:
Using Heat map is very effective way of visualizing points data. To create Heat map, first of all you must know what is heat map. When map visual of a location data is so dense and tightly packed that it does not make much sense a heat map is used. Heat maps are ordinarily used when mapping “points”. In this article we are providing pictorial tutorial of Create Heat Map using IGIS Map Tool
To create Heat map with IGIS Map Tool, you also need to look over the IGIS Map Tool.
Heat Map allows user to display the density of the geographic points in a map. Heat map uses geographic points as a gradient color layer to style the map.
To create Heat Map with IGIS Map Tool you need to follow some steps as follows:
Go To IGIS Map Tool and login to your account or register if you are new user with name, email id, Organization name and role in examination.
Click on Create New Map and fill the tittle of map with its description.
Next screen will be redirected to the canvas where you can create, upload or use sample data for your heat map creation.
Upload a layer from data set.
Once the map is uploaded click on publish layer.
Select style layer by right click on the layer in side bar.
Now click on the Heat map section to create Heat map.
The distance between points for clustering is the merge radius here. The greater the number of points that fall within the radius, the greater the intensity of the heat map. While a radius set too small will generate isolated spots; a radius set to large will show no detail.
Now fill the opacity in the fill section to set the transparency of the heat map layer between 100% and 0%.
Heat map use red color to show high density of points and blue color for the low density of point area.
Below is the heat map of disaster management using sample data.
Use of Heat Map
This type of identification and visualization is useful for visualizing density of the geographic points and also used for business analysis and demographics mapping.
For example, Heat Map can be used by Disaster Management Firm. As when a DM needs to calculate the flood disaster data it uses the heat map.
While data and business analysis is the main reason to Create Heat Map, but it can also helps in understanding and comparing the data easily. It is also very common practice to use the Heat Map in Disaster and Risk management.
I hope this may help you in develop and Create Heat map with IGIS Map Tool. So if you find any problem in creating one such example do let us know by commenting below.
Here in this post we do PHP connection with pgRouting for shortest path. Here we have explained how we can add source and destination point in table and how can we query for shortest route. In this demo we have made a connection between pgrouting and PHP using code igniter using code igniter framework.
Here we have uploaded shape file in postgis. For doing this you need to install postgres and create a database. Everything is already explained in earlier tutorial.
You can also check Postgres with QGIS.
Now the same procedure is implemented using PHP in code igniter framework. As we have an idea about code igniter, which has three main component as view, model and controller.
VIEW-
In view section we will be adding PHP code for presenting the shapefile and the output shortest route.
Model-
In model section will be writing query for getting two end points and shortest path.
Controller-
In controller section we will make function for registration, login and distance.
First of all you need to render your shape file on map. The map can be Google map, Open street map or any other map. For rendering the shape file using leaflet you need to add plugin in your script, which can be downloaded from https://github.com/calvinmetcalf/leaflet.shapefile link. Passing shapefile in L.Shapefile() method and calling addTo(map) method we can add the shapefile on map. After that we need to create input boxes for user to enter end points latitude and longitude. Using ajax we have send these latitude and longitude of both start and end point to model and got the result back in view.
$.ajax({
type: 'POST',
url: "<?php echo base_url('index.php/User_Authentication/distance');?>",
data:{dlat1:lat1,dlong1:long1,dlat2:lat2,dlong2:long2},
dataType: 'JSON',
success: function (response) {
var data= response;
var latitude= parseFloat(response['latitude']);
var longitude= parseFloat(response['longitude']);
var geodata= GeoJSON.parse(data, {Point: ['longitude','latitude']});
geojsonLayer = L.geoJson(geodata).addTo(map);
},
error: function (errorThrown){
check_status= 0;
console.log(errorThrown);
}
});
Write Query in Model
In model section we have written an insert function, which will help us to insert the obtained latitude longitude points from user in query. The query takes latitude longitude as input. As given
insertLatLong($dlat1,$dlat2,$dlong1,$dlong2){}
Then take out the id for given source and destination point and saved them as result in variable start and end.
$start = $this->db->query("SELECT source FROM network1 ORDER BY geom <-> ST_SetSRID(ST_Point ($dlong1,$dlat1),4326) LIMIT 1")->result();
$end= $this->db->query("SELECT source FROM network1 ORDER BY geom <-> ST_SetSRID(ST_Point ($dlong2,$dlat2),4326) LIMIT 1")->result();
After completing this wrote query using pgr_dijsktra method. This is an algorithm to find out the shortest path. This takes shape file table, start point , end point, boolean result for directed/undirected route and boolean result for having/not having route cost. To get the geometry column from network table applied join. Take this result in calculation variable.
After this check for the number of row i.e. the result of query is not empty and take result in distance variable and return is to controller.
public function insertLatLong($dlat1,$dlat2,$dlong1,$dlong2) {
$calculation= $this->db->query("select seq, id1, id2, cost, geom, ST_X(ST_AsText(ST_StartPoint((ST_AsText(ST_LineMerge(ST_GeomFromText(ST_AsText(geom)))))))) as latitude, ST_Y(ST_AsText(ST_StartPoint((ST_AsText(ST_LineMerge(ST_GeomFromText(ST_AsText(geom)))))))) as longitude
from pgr_dijkstra('Select gid as id, source, target, st_length(geom::geography)/1000 as cost from network1',
$start ,$end ,false, false) as di JOIN network1 pt ON (di.id2 = pt.gid)");
if($calculation->num_rows()>0) {
$distance= $try->result();
return $distance;
} else {
return false;
}
}
Call Function in Controller
In the controller, we can call the insert function and pass the required input to called function and also can load the view. Here for this article we have made login session and registration of user. This distance function takes the data in variable in sends to insertLatLong function in Login_Database model.
Hey guys, in this post we are going to focus on one of the important topic of GIS world, which is the “DATA CONVERSION”. Data Conversion means converting computer data into another format. With huge amounts of GIS data available for use, it is more cost-efficient and effective to convert the GIS data from one format to another than recreating all of it.
GIS Data Conversion
There are many ways to convert GIS data and the conversion may use special conversion programs. Simply, it may involve complex data exporting or importing procedures. As we know there are many data file formats used in GIS, this time we will be converting them from one format to another.
To get the list of the various data file formats you can visit our previous posts.
To make datasets usable together in GIS, it is necessary to convert the both vector and raster geospatial file from one format to another. And for doing the Conversion we already have posts about the data conversion from GeoJSON to Shapefile and KML to shapefile and many more, but they all have a long way to convert the GIS data. The Alternative to that is some free and commercial converter software or tools available on the web. There are a Lots’s of tools available on the web, but I recommend you to use IGisMap converter. IGisMAP Converteris an online tool to convert GIS data from one format to another format.
IGisMap converter provides On-line conversion and transformation of both vector and raster geospatial data. In this on-line converter tool the uploaded data file is allowed to convert into various GIS data format.
IGisMAP converter can convert bulk amount of data into another format using any coordinates reference systems. And then you can download the converted data or store it into MyMapData.
This all about IGisMap Converter tool hope it will make your spatial study easy. If you face any problem in data conversion then please comment or chat with us.
Are you looking for converting your TAB data file into KML format for using it in your GIS project? Have you extracted and downloaded TAB file from Map Info, MID or MIF and want to render it with your Geo library which support KML format? If so, here is an article to convert TAB to KML format using this amazing online conversion tool. We will help you to convert your TAB file to a KML file online using IGIS Map Converter.
IGIS Map Converter
IGIS Map converter is an incredible tool for data file conversions. It will translate an MapInfo file (in TAB format) to a shapefile or KML format. Even it can also convert from KML format to shapefile, or KML to TAB, or Shapefile to DXF. It Convert GIS files online without using complex and Enterprise Software like ArcGIS, QGIS, AutoCAD etc. IGIS Map converter is much easier to use then any other conversion software or tool.
IGISMAP to Convert TAB to KML
For TAB to KML conversion 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 TAB file which you want to convert. You can upload your file from system or select from the Recent Files.
Once the file is upload is completed, select the output file format that we want to convert it into i.e. KML.
Now for setting up the conversion process we have to set the CRS (Coordinate reference system), as KML converter strictly transforms input dataset to WGS 84 coordinate reference system (if needed). Please make sure that coordinate reference system of your input dataset is assigned correctly – otherwise the resulting KML file may be spatially shifted or wrong. KML converter strictly transforms input dataset to WGS 84 coordinate reference system (if needed).
Now click the Convert file button to convert the data file formats And you see a new dashboard with two partition, One for downloading or deleting your new KML file format. and other one which shows the file content area i.e bounding box area of TAB file.
You can Download your converted file here or delete it whatever you want, When you scroll down you can see My drive section where all of your converted data files stored. Here you can publish or delete them according to your requirement.
Now, you can also publish your KML file as map to see the content in the file or to check the conversion.
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.
You can also search locations, add new datasets, edit layers and style the map according to your choice and requirements.
IGIS Map Tool Other Conversions
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, TAB and many more raster and vector files, along with that it support more than 4000 Coordinate Reference System.
IGIS Map Converter is a online tool for converting GIS data files from one format to another. which helps you in easy data conversion and beautiful and incredible map creation in no time. IGIS Map converter online tool is recommended for better and easy conversions. If you want you can also use ogr2ogr offline conversion tool for convert TAB to KML format.
If you face any problem during implementing this tutorial, please let us know. Feel free to comment in given comment box.
In India there are many beautiful places to visit. Some of them are used here as information on map. In this demo we have shown only famous place in states but we have also show banks, hotels, companies or hospitals etc. and can have their information. This demo gives information of availability of sources around us.
Data Preparation:
Very first task to prepare any map is the data preparation. This demo shows various places in various state in India. For that we downloaded the data from various sites, arranged the images in folders with states name. Prepared one table with column names as States name, Place Name, Latitude, Longitude and Description. The folder name is same as first column of the table. All image names are same as second column of table. This is done so that data can be used in effective way.
Map has been shown using Leaflet java Script library. For using MarkerCluster in article added the leaflet Marker cluster plugin, which can be downloaded from https://github.com/Leaflet/Leaflet.markercluster website. getAllChildMarkers returns the array of total markers contained within that cluster.
var markers = L.markerClusterGroup({
maxClusterRadius: 120,
iconCreateFunction: function (cluster) {
var markers = cluster.getAllChildMarkers();
var n = 0;
for (var i = 0; i < markers.length; i++) {
n += markers[i].number;
}
//console.log("done");
return L.divIcon({ html: n, className: 'mycluster', iconSize: L.point(40, 40) });
}
});
for (var i = 0; i < addressPoints.length; i++) {
var a = addressPoints[i];
var s=a[0];
//console.log(a);
var n=a[1];
var gcon = L.icon({iconUrl: 'image/'+s+'/'+n+'.JPG', iconSize: [40,40]});
var title = a[4];
var marker = L.marker(new L.LatLng(a[2], a[3]),{ icon: gcon });
marker.bindPopup('<h2>'+n+'</h2><strong>'+s+'</strong><br><img src="image/'+s+'/'+n+'.JPG" height="150" width="300"><br>'+title);
markers.addLayer(marker);
}
map.addLayer(markers);
markers.on('clustermouseover', function(c) {
var popup = L.popup()
.setLatLng(c.layer.getLatLng())
.setContent('click to Zoom')
.openOn(map);
})
If you need to add any images or style in cluster icon so you should not add the default CSS. Add the MarkerCluster.css file in your document. Here in popup we have shown place name, image with description.
So its all about Markercluster with Leaflet if you face any problem in implementing this then comment below.