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Merge polygons features online using IGISMap

In GIS data, a geographic area is represented in a polygon shape. Geospatial features such as administrative boundaries are digitized in the polygon vector model. In some cases, we need to merge the polygon features based on attribute values or location. After merging, input polygons will merge into a single polygon feature assigned with a single row to store attribute values. When the adjacent polygons with common border lines are merged, they combine to form a single polygon. Through merge functionality, we can create any primary-level administrative boundaries like national boundaries from the secondary level divisions like state or district level boundaries. So here in this article, we are providing steps to merge polygons features online in a single layer.

Merging is a common geoprocessing used in GIS projects for two important cases. One is to merge multiple GIS features into single GIS feature within a GIS data itself. Another application is to merge multiple GIS data into single GIS data. In both cases, geometry entity of the input GIS feature or GIS data should be same ie., either point, polyline or polygon.

IGISMap provides Merge Polygons tool to merge multiple polygon features of a polygon GIS data into single polygon feature. IGISMap is a GIS-based web platform, that provides multiple GIS applications that are most important in the field of geospatial analytics. The peculiarity of IGISMAP in the GIS Industry is its user interface which helps the user to perform effortless geospatial operations. Merge Polygons tool is very easy to use and you can merge the required polgons in just two steps.

In this article we will create the national boundary of USA by merging the polygons of state boundaries. Without further due, lets dive into Merge Polygons tool.

Click https://map.igismap.com/merge-polygon to open Merge Polygons tool.

Add your data

After opening Merge Polygons tool, first step is to add or upload polygon GIS data. Here we will choose Upload Data option to upload the data from your personal computer. Then, click on the Browse button to open the browsing box, where you will choose the file from your pc. In this article, we will be uploading a polygon GIS data of USA state level boundaries.

After opening the file, click the Upload button to start the upload process.

Check the article Add / Upload polygon GIS data and merge required polygon features to understand how to use IGISMap GIS data in Merge Polygons tool.

Select polygons using Lasso Tool

When uploading is complete, polygon GIS data of USA state level boundaries will be published in the map. This data will be selected as the input data for carying out the merge operation.

You can access this same data from IGISMap GIS Data collection through Add GIS Data option provided in the Data Selection section.

Click https://map.igismap.com/add-gis to access Add GIS Data tool directly

Click below to download polygon GIS data of USA state level boundaries

Download USA State Level Boundaries Shapefile

Next step is to select the required polygon features from the input polygon data. IGISMap provides two options to select the polygons. They are – Lasso Tool and Select Manually. Lasso Tool option is suitable to selecte large number of polygon features, hence we will select Lasso Tool tab.

Lasso Tool will open the list of modes to draw a polygon over the required polygon features. These are Draw Polygon With Free Hand, Draw Circle, Draw Rectangle, and Draw Polygon. Select Draw Polygon and draw a polygon intersecting all the polygons of the states.

Draw Polygon using Lasso Tool — Draw Polygon using the Lasso Tool

Polygon features of the input polygon GIS data that intersected by the lasso polygon will be selected for merging. Then click Submit to start merging.

Output polygon

After submitting, merged polygon GIS data of USA national ouline boundary is published in the map, as shown below

In the above article we uploaded polygon GIS data and merge polygons features online. But if you have point data you can also convert it into polygon by point to polygon conversion feature of IGISMap Tool. This is good if you have point data. If you don’t have data you can Create Point Data using our tool.

Check the article Share your Map to understand the Share Map feature of IGISMap.

Check other articles:

Check the following IGISMap tools:

Add / Upload polygon GIS data and merge required polygon features

For a GIS project, accessing the required data is the first step that determines the further workflow of the project. Online sources either provides the data or provide tools to work with data. There are very few web tools that provides important data and services to work with the data in a single platform. Yes, that is right – IGISMap is one of that kind, where you can find most demanding GIS data in vector formats with a number of tools to carry out analysis and other operations over the GIS data. In the article below we will how to add/upload data and merge polygons. In addition, to merge the feature you can add GIS Data i.e shapefile, kml, kmz, geojson etc.

GIS Data in IGISMap contains administrative boundaries such as country, states, districts, roads, railway lines, and other geographical features such as roads, farmlands, waterbody, etc. IGISMap gis data tool provides you data for 30+ countries, and 51 US states. Also, a few spatial data on a global level are also provided. These data can be directly accessed using Add GIS Data tool from the dashboard or from the map tools. Add GIS Data is also made available in certain IGISMap tools to help users access GIS data directly within the tool itself.

In Merge Polygons tool, Add GIS Data option is provided to access polygon GIS data of various administrative level boundaries of each country. Users can add any polygon data from IGISMap collection and merge the required polygon features. In this article we are going to see how this is done.

Click https://map.igismap.com/merge-polygon to open the Merge Polygons tool or click Merge Polygons tab from the dashboard.

Add/Upload GIS Data

There are multiple options in Merge Polygons tool to add the input data. In this article, we will select Add GIS Data option to add the required data from IGISMap data collection. For demonstration, we will use the GIS data of local government area boundaries of South Australia. Thus we will select Australia from the Select Country list.

Add/Upload data and merge polygons — Add GIS Data – Select Country

After selecting the country, list of GIS data associated with Australia will open.

Scroll down or search for local government area in the search bar to filter the list to the required data. Select administrative local government area boundaries data from the list and click Add Layer icon.

Local Government Area Boundaries of Australia

Add Layer will preview the selected layer in the map and the options to crop the layer will be available in the tool. Since we only want the LGA boundaries of South Australia. Thus click the Crop Layer button and start drawing a polygon completely enclosing the LGA polygon features of South Australia and click Add Layer button.

Add Layer button will publish the cropped LGA boundaries of South Australia on the map and the Select Polygon section of the Merge Polygons tool will open.

Check this article Merge polygons features online using IGISMap to understand how to upload data and merge polygons in Merge Polygons tool.

If you have Point data then use our feature points to polygon converter. You can directly upload the point GIS data or convert addresses from spreadsheets to points.

Merging Polygons

There are two options to select the required polygon features – Lasso Tool and Select Manually. We will use Select Manually option. After selecting Select Manually, click Select Multiple Polygon button. Now select the polygon features of Roxby Downs, Coober Pady, and Unincorporated SA boundaries, which we want to merge the polygons together. After selecting the polygons, click on the Submit button to start the process of merging the selected polygon features.

Select Polygon - Select Manually — Select Polygon – Select Manually

In a few seconds, a new layer of the input GIS data of LGA boundaries gets published. In this layer, the selected polygon features are merged into a single polygon as shown below.

Check the article Share your Map to know how to share your map with others using Share Map feature.

Check other articles:

Check the following IGISMap tools:

Online conversion of GIS points to polygon

Developing polygon boundaries from GIS points is an important geostatistical process. IGISMap provides a Point to Polygon tool to create polygons from the point of input point GIS data. Conversion of GIS points to polygon in IGISMap is based on the Voronoi theorem. These polygons are called voronoi polygons. In mathematics, a Voronoi diagram is a division of a plane into regions close to each of a particular set of objects. Voronoi polygon represents the area of influence from the input point location such that any position within the polygon is closer to that point than any other point.

IGISMap is a web platform providing multiple GIS tools that are most important in the field of geospatial analytics. The uniqueness of IGISMap in the GIS industry is that it’s UI/UX that helps users to perform effortless geospatial operations. In IGISMap, you can upload your GIS data or use data from IGISMap collection to perform GIS analysis.

In this article , we will convert a point GIS data to polygon GIS data and publish in the map as follows.

Conversion of GIS points to polygon — Voronoi Polygons

Let’s look into the steps to use the Point to Polygon tool of IGISMap.

Click the below link to open the Point to Polygon tool directly

https://map.igismap.com/point-to-polygon

Add input point data

After opening the Point to Polygon tool, the first step is to add the required point GIS data. There are multiple options to add the required data, which are:

Select
Create Points
Upload Vector
Upload CSV/Excel
Add GIS Data

Upload the point data

For this article, we will upload the required point GIS data using the Upload Vector option. After selecting the Upload Vector tab, click the Browse button to browse and select the data from the system.

Select the right data and click the Upload button to start uploading the file. In this demonstration, we are going to use the KML file of GIS points representing locations from each state of USA. The name of the file is point USA.

Input point data will get published in the map after uploading.

Conversion of GIS points to polygon

Convert Layer section opens when data is added. In this section, input point GIS data will be provided in the name Active Data. Input data can be changed by clicking the Edit icon. Users can zoom into the layer by clicking the lens icon.

Click the Convert button to start the process of converting the input points to polygons.

A few seconds after clicking the Convert button, polygon GIS data based on the Voronoi polygons will be published on the map. For making polygon maps appealing you can try the style polygon map feature of IGISMap Tool. Voronoi based polygon GIS data will be created

Export the data

You can export the data published in a map in any GIS format such as ESRI Shapefile, KML, GeoJSON or CSV and use it for external applications. In the More option beside the layer name, click Export Layer to open the following popup where you can choose the desired format and export the file in your system.

For sharing this map with others or embedding it in a website, click the Share Map button from the map to open the Share Map interface. In the Share Map window, edit the components to be provided in the shared map and click Next.

Converting GIS points to polygon — Share Map

Now select the Share Map option and choose Public to share this map publicly. Click the Share Map button to generate the link to the map.

Copy this link and share it with others to access this map.

Upload and view rendered raster images in IGISMap

Raster data in GIS are pixelated data format or images that are georeferenced. Here each pixel represent a geographic area storing the values of any parameter associated with that area. Parameters represented by raster images are mostly continuous in geography such as precipitation, elevation, temperature, vegetation indices etc. Raster images also represents categorical features such as land use land cover.

The conversion of an object’s geometry, color, texture, lighting, and other attributes into a display image is called the rendering of an image. It is the technique of creating a photorealistic or non-photorealistic image from a 2D or 3D model using a computer program. A geospatial raster is only different from a digital photo in that it is accompanied by spatial information that connects the data to a particular location. A raster image can be visualized in different styles such as categorical, quantitative, paletted, multiband etc. These visualization can be stored and saved, so that to be used in other platforms for image interpretations for remote sensing analysis.

IGISMap Upload Raster File tool can add the rendered raster image in GeoTIFF format. IGISMap is a GIS-based web platform, that provides multiple GIS applications that are most important in the field of geospatial analytics. The peculiarity of IGISMap in the GIS Industry is its UI/UX, which helps the user to perform effortless geospatial operations.

Click https://map.igismap.com/upload-raster to open Upload Raster File tool

Let’s see how this can be done.

Uploading the Rendered Raster Image

After opening Upload Raster File tool, Browse your system folder and select the rendered raster file. Then click on the Upload option.

About the rendered raster data

As we said in the introduction, the conversion of an image’s geometry, color, texture, lighting, and other attributes into a display image is called the rendering of an image. When it comes to GIS raster images, the alteration in geometry and style of visualization depends on pixel values.

The image that we have uploaded here is a stacked image of Landsat bands – Green, Red, and Near Infrared. And this stacked image is rendered into the style of False Color Composite, which we have uploaded here.

Raster image visualized

After successfully uploading, the rendered raster image is published on the map, which can be further analyzed through image interpretations.

Viewing of Rendered Raster image — Viewing of the Rendered Raster image

Sharing Map

Share Map will also work with map conatining raster image uploaded. For this, first click Share Map button at the map.

The Map Operation menu will open up to enter and enable the details for the shared map. Click Next button after completing the settings.

Now two options will appear – Share Map and Embed Map. Here we will simply share the map without any security. So click Share Map and click Public.

Then select Share Map button to open the popup containing a link. Copy this link and share with anyone whom you want to share your map with raster data.

Convert addresses from spreadsheet to points on Map in two steps

Consider a customer service manager working for a supermarket company wants to connect with some of their best customers for giving winning prizes and to promote their business. The manager has a list of contacts along with their address which is located all over America. In order to deliver the winning prizes to their doorstep, he has to find the best route which takes a minimum number of days to receive it. Hence he has to give the delivery partner the best route which is easier and less time-consuming.

In such cases, Geocoding helps to make the process easier. Geocoding is the process of converting one or more valid address with location details into GIS points.Geocoder tool of IGISMap can be used for converting address details to point GIS data in a few steps. You only need to upload the spreadsheet file with address columns and assign the address columns to start plotting. Option to review the plotting and edit the points are also available in this tool.

IGISMap is a GIS-based web platform, that provides multiple GIS applications that are most important in the field of geospatial analytics. The peculiarity of IGISMap in the GIS Industry is its UI/UX, which helps the user to perform effortless geospatial operations. IGISMap allows users to edit the data table of vector data by editing the name of the columns, deleting the columns, and adding new columns. The Geocoder tool on the IGISMap increases efficiency by enabling different companies to better coordinate their sales in both domestic and foreign marketing activities.

Open Geocoder tool using the following link https://map.igismap.com/geocoder

Upload spreadsheet file

For uploading the input file, click on the Browse option, select the excel/CSV file from your system that you want to visualize on IGISMap, and click on the Upload option.

Geocoder - Upload Excel/CSV file — Upload Excel/CSV file

Match the Columns

After successfully uploading the file, the next step is to assign the address columns in your file to be used for geocoding. There are 2 options to match the columns – Full Address and Other. Full Address option is used for files with address information provided in a single column. In our case, we have address distributed in several columns, thus we will choose Other option. Click Other option and select the right address columns from you file at the right address types such as address, city, zip, state. Then select the country and click Submit button to geocode the address.

Review the geocoded locations

A GIS layer gets published after submitting, with point locations based on the address information from the input spreadsheet file. Result section also opens with datatable and Relevance_score column.

Relevance_score is a value ranging between 0 to 10 provided for every row depicting the accuracy of the plotted locations after the geocoding each address, where 10 being the highest accuracy. User can check the relevance score for each row and edit the point location if needed. Rows of the point features will be highlighted in red color if the relevance score is below 8. This is to notify the user to confirm the location plotted.

Result - Relevance Score — Relevance Score

How to edit location by checking relevance score

The user can delete any feature by using the Delete Feature button present on the Relevance_score table. Click Edit Attribute button of any required feature to start editing the attribute values of that feature and then click Save icon.

The user can edit the location of any point feature by using the Edit Location button. After clicking the Edit Location button in the row of any point feature, a pop-up menu with the options to edit the location.

Search Address – Enter an appropriate address to replace the pin to that location
lat-lng – Enter latitude/longitude values to replace the pin to that coordinate
Current Location – To replace the pin to your current location
Add Point – Manually plot a point on the base map

Now click Submit button to save the changes in the point GIS data

User can further edit the style of the points or share the map publicly or privately

Create a Map of the Bank Locations in South India

Consider you are an operations manager at a bank. And you want to create a map of the bank locations in South India for managing and directing the operations and policies of your bank. Creating a map of the bank locations can help them expand their customer base and study market analysis. And without a doubt, GIS is the technology for this objective.

The applications of GIS are advancing in the field of information and computer science. The demand for mapping and geospatial analysis became important for almost all industrial sectors. Limited GIS software and online tools are available where you can do this job. Most GIS software are limited to the service of creating a map or hosting the map in a website, but IGISMap allows you to do both

IGISMap is a GIS based web platform providing multiple GIS applications that are most important in the field of geospatial analytics. The peculiarity of IGISMAP in the GIS Industry is its UI/UX that helps the user to perform effortless geospatial operations. GIS tools of IGISMap allows you to Add Your Data, Create Your Data, Map Your Data, Style Your Data, Process Your Data, Analyze Your Data and also help you to Share your map privately or publicly.

IGISMap GIS Data Collection

IGISMap provides GIS data based on countries level. These data are made available for more than 30 countries, 51 US states and few spatial data of globally distributed features. These data can be accessed by using Add GIS Data tool and Download GIS Data tools.

Click https://map.igismap.com/add-gis to access Add GIS Data tool

Click https://map.igismap.com/gis-data to access Download GIS Data tool

Using Add GIS Data tool, you can these data in your map in IGISMap application iteslf and apply IGISMap tool to perform various geospatial operations. Data are provided in two lists for each country or US states. They are Administrative Layer and Other Layer.

Administrative GIS data are polygon vector data of administrative boundaries such as national outline boundary, state boundaries, province boundaries, district boundaries, counties, postcode boundaries etc. Most of the data in IGISMap GIS data are from Open Street Maps. Administrative level data are collected from various government websites and other authentic online sources such as US Census Bureau, Humanitarian Data Exchange, Census India etc.

In this article we will Add GIS Data and Proximity Analysis tools of IGISMap to plot the locations of bank in south Indian states, like the following.

Adding data from Add GIS Data tool

For the requirement of mapping bank locations in south India, let us use the point data of bank locations and polygon data of state level boundaries of India from the IGISMap GIS database of India.

When Add GIS Data is opened, select the country from the list. You can search the name in the search box. Here we will select India and the list of GIS data associated with India will be opened

Adding state level GIS data of India

From the list opened, select administrative boundaries state level to preview the data. After confirming the data, click Add Layer icon. This will open the options to Crop Layer and Add Layer.

Based on our requirement, we only need to map the bank locations of south Indian states. Even though there is no official South India or North India division for the Republic of India, cetain states are commonly considered as south Indian states, north Indian, north east Indian states etc based on their geographical position. Kerala, Tamil Nadu, Karnataka, Telungana, Andhra Pradesh and Goa are considered to be south Indian states.

Thus lets use the Crop Layer functionality to select these states from the data we added. For this, select Crop Layer tool and draw a polygon intersecting all the south Indian states, as shown below.

After the polygon is completed, click Add Layer button to publish the polygon GIS map of south Indian states to the map.

GIS Data added successfully — GIS Data Published

Click the below link to download the GIS data of India state level boundaries

Download India State Level Boundaries

Adding GIS data of bank locations in India

So, the GIS data of south Indian state is added from Add GIS Data tool. Now lets hunt for the GIS data of bank locations of India.

Follow the same steps to add another layer in the existing base map. Select the country from the list and search bank in the Search Layer bar to filter the data list. When you see the data bank point, select the data – preview the map – select Add Layer icon.

Use Crop Layer tool to select bank points in the southern part of India and click Add layer to add the selected bank points.

Now we got both GIS data of the administrative boundaries of southern states and location points of bank added in the map.

Click the below link to download the GIS data of bank locations in India

Download GIS Data of Bank Locations in India

Proximity Analysis

Cropping the point GIS data by drawing polygon may not filter the data points accurately. Some points outside the area of interest may still remain. Thus let’s make use of Proximity Analysis tool of IGISMap.

Proximity Analysis can be accessed only from a map. Click onfrom Map Tools to get the list of IGISMap tools from which you need to select Proximity Analysis tool.

In the tool, the user needs to select layers for performing proximity analysis. Here we need to click the Two Layer option as we want to select the bank locations within the polygon boundaries of south Indian states.

In Step 2, first select the input layer, which is the layer you want the features selected from – india_banks_points. Then select the mode of spatial intersection – are within and intersect. Here we want all bank locations that are within the south Indian states polygon boundaries. Thus select within as the mode of spatial intersection. In the next box, select the india_administrative_boundaries_state_level from the dropdown.

Click Next. Search Custom Filters step opens next, but we done need any further filter requirements. So click Get Result button and see the resulting points highlighted on the map

Click Publish which will publish the GIS data of bank locations only in the added south Indian states.

Check the article Share your Map to understand how to share this map with your team.

Also check the article Perform Proximity Analysis over data from Add GIS Data

Check other articles:

Check the following IGISMap tools:

How to style your polygon GIS data categorically

GIS helps users to understand patterns, relationships and geographic context. It benefit includes improved communication and efficiency, as well as improved management and decision-making. GIS combines datasets with maps, integrated regional datasets with any type of descriptive information or data. It provides mapping and assessment prerequisites for technology and almost every industry.

Visualization and intepretaion of data is what makes GIS a beautiful and interesting fields in data analytics. Science of visualization is the core essence in the art of cartography and mapping. Any type of geospatial features presented in the map with proper color combination, accurate size and location helps in better image interpretation. Quantity and category based representation of spatial features are the common visualization styles used in GIS.

IGISMap Styling Tools

IGISMap is a web platform providing multiple GIS applications that are most important in the field of geospatial analytics. The peculiarity of IGISMap in the GIS Industry is its UI/UX that helps the user to perform effortless geospatial operations. IGISMap provides the following styling tools:

Among the styling options listed above – Basic, Category and Quantity styling options are used to style polygon and points, whereas Bubble Style and Icon Style are used to symboloze point GIS data. Basic Style will give any single color for the while GIS layer. Quantity Style is used to visualize the GIS data quantitatively. And Category Style will style your GIS map with separate colors assigned to each category of features

In this article we will talk about Category Style tool of IGISMap and how it can be used to categorically visualize your polygon GIS data like the following.

USA County Boundaries Data Categorized Based On States

Add your GIS data

For the demonstration, let’s add county boundary polygon data of USA from IGISMap GIS data collection. For this let’s use Add GIS Data tool of IGISMap.

Click https://map.igismap.com/add-gis to open Upload Vector File tool.

After opening the Add GIS Data tool, in the Select Country section we will select United States of America. Then Search Layer section opens with the list of GIS data of USA, where we need to select ‘administrative county boundaries‘.

Before adding this data, lets check the data table of this data and verify the attribute field which we need to categorize this data. Switch the view from Map to Datatable and review the attribute fields. Here we are going to categorize the polygon features of county boundaries based on the state which it belongs to.

As you can see below, we have the attribute field for counties and the attribute field with states it belongs to.

Add GIS Data - Datatable — Datatable in Add GIS Data

Since we have confirmed the data, lets continue downloading. First click the download icon beside the data name and then click the Add Layer button in the next section that opens.

Now the layer is published in the map with the name ‘united_states_administrative_county_boundaries‘

Click here – Download USA County Boundaries GIS Data

Open IGISMap Category Style tool

After adding the input GIS data from Add GIS Data, we can style the counties categorically using Category Style tool. For accessing the tool, click Tools button at the upper left side of screen to open the map tools popup. Then select Category Style tool listed under Style Your Data section.

We can also open the Category Style tool by going to the More option of input point data and choose the Category Style from the Edit Style option.

More options - Category Style — More options -Edit Style – Category Style

Styling GIS data categorically

Then the tool is appeared on the screen of IGISMap.

Then the tool appears and we have to select the layer from Select Layer section which is the ‘united_states_administrative_county_boundaries‘ data that is published in this map and then we have to click Next option.

Category Style - Select Layer — Select Layer

After clicking Next, in the Edit Layer section, we can change the style as we want. In this section we can can change Opacity and change the Border Width as required. Now in the Attribute field, select state field to categorize the counties based on its individual attributes values.

Category Style - Edit Layer — Edit Layer

After selecting the required attribute field, all individual values will be listed with different colors assigned for each category.

We can change the color for each category by the color and choosing the right color. Then we have to click OK.

Category Style - Assign Color — Assign color to each category

After changing all color of the attributes we have to click on Save Style for styling the map categorically.

Now as you can see the map is converted into categorical style and the output map is shown.

For better view and make your data more interactive in the map, go to More and enable Make Interactive option.

Now as you see below, the USA county level boundaries GIS data is better visualized in state based categories and the map got more interactive.

You can share your map with others in public or private mode. Article Share your Map will help you understand more about Share Map feature of IGISMap.

Check the following IGISMap tools:

How to style point GIS data categorically

IGISMap Styling Tools

Basic Style
Category Style
Quantity Style
Bubble Style
Icon Style

Among the styling options listed above, Bubble Style and Icon Style are used to symboloze point GIS data, whereas Basic, Category and Quantity styling options are used to style polygon and polyline GIS data. Bubble Style is used to style the point GIS data quantitatively and Icon Style is used to style point GIS data with the icon or categorically by assigning separate icon for each categories.

In this article, we will talk about how to categorically represent point GIS data using Icon Style tool of IGISMap and will walk through the steps to style your data categorically like the following

Uploading the data

For the demonstration, we will upload the point GIS data of administrative buildings locations in London city and categorize it based on types. First lets upload this data using Upload Vector File tool of IGISMap.

Click https://map.igismap.com/upload-vector-files to open Upload Vector File tool.

After opening the Upload Vector File tool, here we can upload required the vector data in any of the following vector formats.

GML, KML, KMZ, GeoJSON, TopoJSON, GPX, GPS, GPKG, ODS, MAPINFO, SOLITE, ESRI SHAPEFILE DXF MID. MIF, PDF

In the Select Layer section we have to click on Browse and select the input file from the system, which is the GIS data of administrative building locations in Lonndon named as London_admins. After opening the file, click Upload.

Upload Vector File - Select Layer — Uploading the file

After uploading, input GIS data will be visible on the IGISMap screen, represented by default icon style as shown below.

Upload Vector File - Point GIS Data — Point GIS Data plotted on map

Open IGISMap Icon Style tool

After adding the input GIS data, we can style the points categorically using Icon Style tool. For accessing the tool, click Tools button at the upper left side of screen to open the map tools popup. Then select Icon Style tool listed under Style Your Data section.

Map Tools

We can also open the Icon Style tool by going to the More option of input point data and choose the Icon Style from the Edit Style option.

More options

Styling point GIS data categorically

After the tool appears, we have to select the layer from Select Layer section which is the London_admins data that is published in this map and then we have to click Next option.

Icon Style - Select Layer — Select Layer

Then the Edit Layer section is appeared. Here we have to choose Category Icon. Now in the Attribute field, select admin field to categorize the point data based on its individual attributes values. You can also assign a default icons size to applied for every icon style in the Set Market Size box.

Select the Attribute in Category Icon — Icon Style – Category Icon

In the Icon Overlap, you can change the option between True or False. Choose True if you want the icons to be overlapping when the map is zoomed out. Select False if you want to see every point icons any zoom extend of the map.

After selecting the required attribute field, all individual values will be listed with different icons assigned for each category, with default marker size. We can change the icons for each category by selecting the edit option and choosing the right icon from the list provided. We can also assign appropriate marker size for each category at Set Marker Size section.

After editing we have to click on Save Style for styling the point data.

Following all the process we get the desired output on the screen of IGISMap.

Create grid layer over England national boundary

GIS solutions are based on mathematical and geometrical models applied on location integrated data. Most GIS software have mapping platforms built on these models that support geospatial data and tools for creating, editing and analysing these data. Tools for creating new GIS data with respect to the input GIS data plays an important role in geospatial operation. Creating Voronoi polygons, polygon to point conversion, create buffer layer etc are some of the important tools. Developing grid strcuture over the area of interest is a process that has important application in GIS. Simply understanding grids are intersection of coordinates addressing latitude and longitude data. For example, if we add index to the boxes created by grid then we can easily identify agricultural lands, settlement area, parks, stadium, forests, etc.

Most GIS software provides the tool to create grids based on an input GIS data. But using these software require adequate traning and knowledge in GIS concept. Here is why IGISMap become an important tool in GIS industry.

IGISMap Create Grid tool

Create Grid tool of IGISMap lets you create grids over your GIS data in just two steps and lets you publish as a GIS layer in your map, where you can further download in any GIS format. You can create grid layer using GIS data of any spatial vector structure. In this article, we will talk about using Create Grid tool for creating grid, like the following.

Create Grid - Grid Layer Created — Grid Layer Created

To navigate directly to use this tool, refer link attached here. https://map.igismap.com/grid-polygon

IGISMap - Create Grid tool — Create Grid tool

Add GIS data to create grid layer

First step of the Create Grid tool is Select Layer, where you need to provide the input GIS data. There are three options to add your data:

Select
Create Data
Add GIS Data

Using Select option, you can input your data by selecting the data that is already uploaded in your map.

Create Grid - Select option — Select Data

If the user wants to add the vector data in the form of point, line or polygon then click on Create Data and select the option using Create Polygon, Create Line or Create Point.

Create Grid - Create Data option — Create Data

IGISMap provides you with Add GIS Data tool that provides GIS vector layers of administrative boundaries such as country, states, districts, provinces, postcode boundaries and other geographical features such as roads, farmlands, waterbody etc. These data are made available for more than 30 countries, 51 US states and few spatial data of globally distributed features.

In this article, we will use Add GIS Data option to add the data for working with Create Grid tool. And we will use National Outline Polygon GIS Data of England from Add GIS Data to demonstrate the steps. First let’s select the Country Name from the list below provided or you can search the name in the search box. Here we will select United Kingdom, from the list to add grid over country England.

Create Grid - Add GIS Data option — Add GIS Data

Add Input Data

In this article, lets add the GIS data of the national boundary of England from IGISMap GIS data collection as input data.

Select United Kingdom in the Select Country section and choose the data england national boundary from the administrative layer list and click add layer button.

Add GIS Data - Select Country — Add GIS Data – Select Country

If we need the desired portion of the selected GIS data, you can make use of the Crop Layer tool. Since this is a GIS data with single polygon feature of the national boundary of England, lets directly click Add layer to add the data as input layer for creating grid.

Add GIS Data - Select Data — Add GIS Data – Select Data

Enter the range for the grid

After selecting the input data, provide the range for each grid feature for your grid GIS data and click Submit.

The grid polygons in specified range are added successfully to the base map. Users can observe that the gird layer is added as a separate layer to perform other geospatial operations.

When you click on any of added grid layer polygon then the details of longitude, latitude, country, etc. are mentioned with added layer to map index accordingly. These details can help the user to locate easily anywhere on the base map.

To perform other geospatial options, click on More option present besides added grid layer. The geospatial options to Show Datatable, Show legend, Edit Style, Add/Merge/Split polygons, Export Layer and Delete Layer are available on IGISMap application.

More options to perform geospatial operations

How to use Add Existing File tool of IGISMap

The applications of GIS tools are expanding in the field of business, research, defense, etc. Thus the features and tools of every GIS software are updating abruptly for helping users in these industries to get the right information by performing complex analyses over GIS data. But working with most of the GIS software in the market requires adequate training and dense knowledge in geospatial concepts.

That is where IGISMap is useful. IGISMap is GIS based web platform providing multiple GIS applications that are most important in the field of geospatial analytics. The peculiarity of IGISMAP in the GIS Industry is its UI/UX that helps the user to perform effortless geospatial operations. In this article, we will discuss Add Existing File tool of IGISMap.

In IGISMap, GIS data is uploaded, created, edited and worked on a map. A map is a spatial interface that supports GIS data and give access to various tools to perform geospatial operations. As a user of IGISMap, you can create any number of maps and add GIS data of any formats.

Add Existing File is a tool that keeps the list of all data that are available on every map in your IGISMap account. Users can open this tool directly from the map or from the dashboard to view the list of data that are published in the maps. You can select any data from the list, preview it and add that data to the map. Thus you dont have to take effort on uploading the data again if it is available in any map.

Let’s look into the application of Add Existing File tool in IGISMap.

Get directed to Add Existing file tool using the following link https://map.igismap.com/your-data

Publish GIS data in the map

Let’s see how a data published in a map get listed in Add Existing Tool. So let’s first publish a data in a map. For this lets use Add GIS Data and publish USA county boundaries polygono data

Add data from IGISMap GIS data collection

Select united states of america from the list of countries and select the data administrative county boundaries and click Add Layer icon.

Download USA County Boundaries Shapefile

In the next step, since we dont need to crop the data, directly click Add Layer button as shown below.

Now, GIS data of USA county boundaries are successfully added in the map.

Add GIS Data - Data Published — Data Published

Publish data from Add Existing File

Now, we can add the USA County Level data layer using the Add Existing File. If you want add the data in a new map, open Add Existing File tool from the dashboard.

If you want to add the data from an existing map, click the Tools button below the layer list. This will open the list of all tools of IGISMap, as shown below.

In the section Add Your Data, click Add Existing File to open the tool.

Now Add Existing File tool is opened with the list of all images currently published in the maps of your IGISMap account. The data we added from Add GIS Data, which is administrative county boundaries data of USA is listed top of the list. Or you can search the data using Search Layer option.

You can click and preview the data like the following.

IGISMap Add Existing File tool — Add Existing File tool

Click Add Layer button to publish this layer in your new map.

Add your data

Select polygons using Lasso Tool

Output polygon

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Check the following IGISMap tools:

Add/Upload GIS Data

Merging Polygons

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Add input point data

Upload the point data

Conversion of GIS points to polygon

Export the data

Sharing the Voronoi polygon map

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Uploading the Rendered Raster Image

About the rendered raster data

Raster image visualized

Sharing Map

Upload spreadsheet file

Match the Columns

Review the geocoded locations

How to edit location by checking relevance score

IGISMap GIS Data Collection

Adding data from Add GIS Data tool

Adding state level GIS data of India

Adding GIS data of bank locations in India

Proximity Analysis

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IGISMap Styling Tools

Add your GIS data

Open IGISMap Category Style tool

Styling GIS data categorically

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Check the following IGISMap tools:

IGISMap Styling Tools

Uploading the data

Open IGISMap Icon Style tool

Styling point GIS data categorically

IGISMap Create Grid tool

Add GIS data to create grid layer

Add Input Data

Enter the range for the grid

Publish GIS data in the map

Add data from IGISMap GIS data collection

Publish data from Add Existing File

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