Generate Voronoi Polygon from the GIS data

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 point to polygon in IGISMap is based on 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. The Voronoi polygon created for each point 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. Here we generate Voronoi polygon from the gis data.

IGISMap is a web-based platform that powers many of the most important GIS applications in the field of geospatial analysis. The uniqueness of IGISMap in the GIS industry is that it’s UI/UX helps users to perform geospatial operations easily. In IGISMap, you can upload your GIS data and perform geospatial analysis.

In this article, we will see how to make use of the point GIS data from the IGISMap GIS data collection for creating polygon GIS data.

Voronoi Polygons
Voronoi Polygons

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 Point to Polygon tool, 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

Among these options, we will choose Add GIS Data to add a point GIS data from IGISMap GIS data collection.

Add GIS Data
Add GIS Data

Add GIS Data option will be selected as default. Thus we will continue to add the required point GIS data for creating voronoi polygons.

Adding the GIS data

In this article, we will elaborate about the entire process for generating Voronoi polygon from the GIS data which will add from Add GIS Data in Point to Polygon tool. So we have to select the country which we want to add for creating a polygon after appearing in the Add GIS Data section. we can easily search the required country by the Search Country section.

For demonstration, let’s choose point GIS data of Airport locations in France for the demonstration. Browse for France in the Search Country search bar.

Add GIS Data-Select Country From Add GIS Data
Select Country From Add GIS Data

Otherwise, scroll down and choose France from the list of countries and click Select Country.

Add GIS Data-Select France From Country List
Select France From Country List

After selecting the country, browse airport point data from the list of data provided for France. You can also use Search Layer option for searching the data. After finding the required data, click on the name of the layer to preview the layer in the map. Click Add Layer icon to continue with the data.

France Airport Points
France Airport Locations

Moving on, the Crop Layer option will appear. Since we are going to add the whole data, let’s select Add Layer option to publish the GIS data of airport points on the map.

Add Layer From IGISMap
Add Layer From IGISMap

Download France Airport Points Shapefile

Converting the point data

Now we have added the required data to the map, let’s continue to create Voronoi polygons from the input points GIS data. In the Convert Layer section, click Convert button to start the conversion.

Generate Voronoi Polygon from the GIS data
Convert Layer

As you can see below, voronoi polygons are created for each point in the point GIS data.

Generate Voronoi Polygon from the GIS data
Download In GIS Formats

You can download this polygon GIS data in any important GIS format such as shapefile, KML, GeoJSON or CSV file. Or you can choose to use this data for further processing in IGISMap itself for visualization and analysis.

Upload GIS data and label the features – IGISMap Tool

Labeling is the art of arranging text on a map in relation to map symbols, which together represent features and attributes in the real world. It specifically refers to the process of automatically generating and setting descriptive text for features in a map. So here in this article, steps are provided on how to upload gis data and label the features.

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

IGISMap is a web platform providing multiple GIS applications that are most important in the field of geospatial analytics. Label Feature tool from IGISMap is designed to label the region’s GIS data. In this IGISMap tool, we can easily plot the text data. Users can format text data according to presentation requirements. The color of the text, its size, everything can be adjusted.

In IGISMap there is using the Label Feature tool which is a powerful GIS tool to plot text data of the point GIS data. Let’s see the process of labeling the text data of a region as shown below.

Labeling of German universities
Labeling of German universities

If you have data then upload using the following steps if not download from gis data. For Adding data from IGISMAP check this – Add GIS data and label features in map.

How to upload GIS data and label the features

In this article, we will discuss the labeling of points GIS data. For this, we will upload the GIS data by using the Upload Vector File tool of IGISMap. Here we describe labeling the University locations in Germany using the Label Feature tool of IGISMap.

to assess the Upload Vector File tool directly click-https://map.igismap.com/upload-vector-files.

Upload the point GIS data

After login in to the IGISMap on the dashboard, there are many tools. From them, we have to click on the Upload Vector File tool.

Dashboard
Dashboard

That will open the Upload Vector File tool. First step is Select Layer.


Upload Vector File tool

Upload Vector File tool

After opening the Upload Vector File tool, we can upload the vector file of various file formats that we have e.g. GML, KML, KMZ, GeoJSON, TopoJSON, GPX, GPS, GPKG, ODS, MAPINFO, SOLITE, ESRI SHAPEFILE DXF MID, MIF, PDF. In the Select Layer section we can Drag &Drop the file or we can Browse the file. For this article, we Browse the file by clicking Browse and selecting the file (german _universities shapefile) from the desktop and then Upload it.

Upload Vector File-Upload the shapefile
Upload the shapefile

After uploading the data point layer is visible on the screen of IGISMap.

Successfully plotted the point data
Successfully plotted the point data

Opening Label Feature tool

After uploading the point GIS data from Upload Vector File, we can label the German university’s point GIS data using the Label Feature tool. For accessing the tool, click the Tools button at the upper left side of the screen to open the map tools popup. Then select the Label Feature tool listed under the Style Your Data section.

Label Feature from Tools
Label Feature from Tools

We can also open the Label Feature tool by going to the More option of the polygon GIS data and choosing the Label Feature tool.

Label Feature from More section
Label Feature from More section

Labeling the point GIS data

Then the tool appears on the screen of IGISMap.

Label Feature tool
Label Feature tool

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

Label Feature-Select the point GIS layer
Select the point GIS layer

After clicking Next, in the Select Field section, Here we have to select the appropriate field in the Feature Name section from the drop-down box as required.

Label Feature-Choose the Feature Name
Choose the Feature Name

We can change the size of text which will be plotted on the map by Font Size and select the appropriate color from the drop-down box as required by the Color section. Then we have to click OK.

Label Feature-Select the Color and Font Size
Select the Color

After selecting the features name and changing the color and size of the features we have to click on Save Label for labeling the German Universities point GIS data.

Label Feature-Save the Label of point GIS data
Save the Label of point GIS data

Following all steps properly we get the desired output of universities point GIS data on the screen of IGISMap.

Successfully added Label style of German universities point data
Successfully added Label style of German university’s point data

In the above steps, you learn how to upload gis data and label the features of the map. If you want to share, export, or embed the map on your website.

Try our online polygon merge feature in one layer.

Add GIS data from IGISMap and label each feature

GIS helps users to understand patterns, relationships, and geographic context. Its benefits include improved communication and efficiency which helps in improved management and decision-making. GIS combines datasets with maps, and integrates regional datasets with any type of descriptive information or data. It provides mapping and assessment prerequisites for technology and almost every industry. In this article, we add gis data and label features in map. After labeling you can share or embed the map on website.

Labeling is the craft of placing text on a map in relation to the map symbols, together representing features and properties of the real world. It refers specifically to the process of automatically generating and placing descriptive text for features in maps. Labeling the features of the map is important in presentations to identify the feature or its properties. IGISMap has a Label Feature tool to label each feature of GIS data based on the value from a particular attribute field.

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 which helps the user to perform the effortless geospatial operation. Using Label Feature, you can easily label the spatial features of your GIS data based on the values from any attribute field of the data table, whether it’s integer, word, date, or any other data type. This labeling functionality works with point, line and polygon GIS data.

Let us look at the process of labeling GIS data like the following.

London Boroughs
London Boroughs

Add a GIS data from IGISMap

In this article, we will try to add data from IGISMap GIS data collection and label it’s features. For demonstration, let us use a polygon GIS data of London Borough boundaries from IGISMap GIS data collection.

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

After opening the tool, first step is to select the country. Here we will select united kingdom

Add GIS Data tool
Add GIS Data tool

Then Search Layer section opens with the list of GIS data of UK, where we need to select ‘administrative london borough boundaries’. First click the download icon beside the data name and click the Add Layer button in the next section that opens.

Add the London borough boundaries layer
Add the Layer

After clicking Add Layer button, polygon GIS data of London borough boundaries will be published in the map.

Successfully added the layer
Successfully added the layer

You can access the GIS data of London boundaries by clicking https://map.igismap.com/add-gis

Download London Borough Boundaries Shapefile

Opening the Label Feature tool

After adding the input GIS data from Add GIS Data, we can label the polygon GIS data using Label Feature tool.

Click https://map.igismap.com/label-feature to access Label Feature tool directly.

For accessing the tool from the map, click Tools button at the upper left side of screen to open the map tools popup. Then select Label Feature tool listed under Style Your Data section.

Label Feature from Tools
Label Feature from Tools

We can also open the Label Feature tool by going to the More option of the required GIS data and choose the Label Feature tool.

Label Feature from More section of the layer
Label Feature from More section

Labeling the polygon GIS data

Now the tool is opened in the map, let’s label our GIS data.

Add GIS data and label features in Map
Label Feature tool

First step is to select the input data from Layer Selection section. Select ‘united_ kingdom_london_borough_bounaries‘ from the dropdown and click Next.

Add GIS data and label features in Map
Select the layer

Then Select Field section opens. Here we need to select the attribute field from which the label values to be taken for each polygon feature of the input GIS data. In our case, select name from the dropdown.

Add GIS data and label features in Map
Select the Feature Name

In this section we can also change the style of label by changing the Font Size and Color.

Add GIS data and label features in Map
Choose the color

After selecting the attribute field and fixing the Font Size and Color, click Save Label to apply the labels on our GIS data.

Add GIS data and label features in Map
Save the Style

Following all steps properly we get the desired output of polygon GIS data with labelled features.

Add GIS data and label features in Map
Successfully labeling of the polygon GIS data of London

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
Conversion of GIS points to polygon
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.

Conversion of GIS points to polygon
Upload Vector

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

Conversion of GIS points to polygon
Convert Layer

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.

Conversion of GIS points to polygon
Convert Layer

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

Conversion of GIS points to polygon
Voronoi Polygon Data Published

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.

Conversion of GIS points to polygon
Export Layer

Sharing the Voronoi polygon map

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.

Converting GIS points to polygon
Share Map Link

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

other link:

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
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‘.

Add GIS Data
Add GIS Data

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.

Add GIS Data - Add Layer
Add Layer

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

Data published
Data published from Add GIS Data

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.

Map Tools
Map Tools

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.

Category Style
Category Style

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.

Select Attribute Field
Select Attribute Field

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.

Save style
Save the Style

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

Polygon GIS data categorized
Polygon GIS data categorized

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

Make Interactable
Make Interactable

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.

Interactable Map
Interactable Map

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.

Other articles:
Check the following IGISMap tools:

How to style point 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:

  • 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

Administrative Locations in London
Administrative Locations in London

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

Upload Vector File tool
Upload Vector File

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 popup
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.

IGISMap More options
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.

Setting Icon and Marker Size
Setting Icon and Marker Size

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

Save the Style after Edit Layer
Save the Style after Edit Layer

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

Point Map by Icon Style
Point Map by Icon Style

Create point data and convert it into polygons

Voronoi polygon is an area representing the influence from a particular point location. A Voronoi polygon is actually a systematic way to divide spaces into a number of regions using a set of input points. For each point there will be a corresponding area that consists of the locations closer to that point than any other. These areas are called Voronoi cells.

IGISMap provides a Point to Polygon tool to create Voronoi polygons out of point from input point data. IGISMap is a web platform providing multiple GIS applications that are most important in the field of geospatial analytics. In IGISMap, you can upload your GIS data and perform geospatial analysis.

In IGISMap, Point To Polygon tool will convert input point data into polygon data by creating a polygon shape for each point in the input point data, like the following.

Voronoi Polygon
Voronoi Polygon

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

Click https://map.igismap.com/point-to-polygon to open Point to Polygon tool directly

Point to polygon

After opening Point to Polygon tool, first step is to add the data using any of the following options:

  • Select
  • Create Points
  • Upload Vector
  • Upload CSV/Excel
  • Add GIS Data
IGISMap Point To Polygon tool
Point to Polygon

Here we are going to choose the option to Create Points and then convert the point to polygons through voronoi conversion. Thus lets first create and publish point GIS data.

Creating point data

Select Create Points tab which open Add Points section to plot points on the map at the desired locations.

Create Points
Create Points

Points can be plotted through any of the following options that can be used anytime in this section. They are:

  • Add Points
  • Search Address
  • Lat Lon Values

After finish the plotting, click Save and Publish button to publish the point GIS data.

Add Points
Add Points

Check the article Plot ATM locations on a map and embed in your website to know how to create point GIS data using Create Point Data tool.

Converting the Point data to Polygon data

After saving the point data, Convert Layer section is appears to carry out the point to polygon process.

Now click Convert button to run the point to polygon process.

Convert the Point Layer
Convert the Point Layer

As you can see, voronoi polygon layer is created and published in the map.

Voronoi Polygon
Voronoi Polygon

Sharing the voronoi polygon map

For sharing this map we have to click on Share Map button from the map. In the Share Map window, you can give the map name at the map title and  click on Next. Then a share map section appears.

Share Map
Share Map

Choose the option between Share Map as a link or Embed Map to get the html iframe to attach in the webpage. Here you can also two security of the map by selecting Public or Private.

Embed Map
Embed Map

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

Check other articles:
Check the following IGISMap tools:

How to create Bubble Map for point GIS data

GIS helps users to understand patterns, relationships and geographic context. It’s benefits includes improved communication and efficiency that helps in 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 methods makes GIS an 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. Common visualization methods used in GIS are Quantity and Category stylings.

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:

In IGISMap, Bubble Style and Icon Style are the styling tools for point GIS data, whereas Basic, Category and Quantity styling tools can be applied on polygon and polyline GIS data. Bubble Style visualizes point GIS data quantitatively, while Icon Style will provide proper icons for the points based on the property. Icon Style also has the option to style the points categorically by assigning separate icon for each categories.

In this article, we will talk about how to quantitatively represent point GIS data using Bubble Style tool of IGISMap. We will walk through each steps to create a map like the following.

Population Diversity in USA States
Population Diversity in USA States

Check the following article to know how to style the pins based on categories.

Uploading the data

For the demonstration, we will upload a point GIS data into IGISMap. We can either add it in vector format using Upload Vector File tool or in spreadsheet format using Upload CSV/Excel File tool. Here, let’s upload the GIS data of state wise population details of the USA in spreadsheet format with latitude and longitude fields containing the state centroid coordinates.

Click https://map.igismap.com/upload-excel-csv-files to open Upload Excel/CSV File tool.

After opening Upload Excel/CSV File tool, click on Browse and choose the file final_usa_popuplation showing USA state wise population map from the desktop and then Upload it.

Upload Excel/CSV File
Upload Excel/CSV File

After Upload we have to define the location fields in Define Location Fields section. In the IGISMap there are three options to Define Location Fields from the spreadsheet file:

  • Latitude/Longitude
  • WKT
  • Geocode

Coordinates in our data is saved in separate latitude and longitude columns. Thus we have to select latitude and longitude attribute fields in our data from the dropdown list at appropriate boxes. Then click on Publish to publish the data in the map.

Define Location Fields
Define Location Fields

Now the data is published and point is plotted in the map with a default blue pins as shown below.

Point Data Published
Point Data Published

Open IGISMap Bubble Style tool

Lets now open the Bubble Style tool to style the uploaded point data. To access the tool from the map itself, click Tools button from Map Tools section below Base Map tab. This opens a popup with Map Tools where you can select Bubble Style tool listed under Style Your Data section.

Map Tools
Map Tools

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

More options
More options

Convert pins to bubbles

In Bubble Style tool, first step is to select the layer from Select Layer section which is the final_usa_popuplation in our case and click Next.

Bubble Style - Select Layer
Select Layer

Now the Edit Layer section is opened. Here you can fix the Opacity and choose the Attribute field from which you need to take values for quantitative visualization. Select population_2020 as we need to understand the population distribution in every states of USA in 2020.

Bubble Style - Select Attribute Field
Select Attribute Field

When required attribute field is selected, four class of value ranges get listed as default with different color and bubble radius. We can change the Color and bubble Radius for each class by selecting the color, that opens a palette to choose the right color of your choice. After making all changes, click Save Style button to apply this style to the point GIS data.

Assign color to each class
Assign color to each class

Bubble Style is applied in the point GIS data like the following.

Bubble Map
Bubble Map

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

Also check the article Create GIS Bubble Map – IGIS Map Tool

Check other articles:
Check the following IGISMap tools: