Skip to content
  • Home
  • About
    • Privacy Policy
    • Disclaimer
    • Terms and Conditions
  • Contact Us
Geoscience.blogYour Compass for Earth's Wonders & Outdoor Adventures
  • Home
  • About
    • Privacy Policy
    • Disclaimer
    • Terms and Conditions
  • Contact Us
Posted on December 26, 2022 (Updated on July 21, 2025)

Custom marker colours in leaflet based on attribute

Hiking & Activities

Level Up Your Leaflet Maps: Custom Marker Colors Based on Data

Leaflet? It’s the go-to JavaScript library when you want to whip up interactive maps that don’t just sit there, but actually do something. And while Leaflet’s great out of the box, the real magic happens when you start bending it to your will. One of my favorite tricks? Ditching the boring default markers and using color to tell a story with your data. Trust me, it’s a game-changer.

Why Bother with Custom Colors?

Think about it: a map crammed with identical markers is just… noise. But color-coded markers? Now you’re talking! Suddenly, patterns jump out, insights become crystal clear, and your map transforms from a static image into a dynamic data dashboard. It’s like giving your map a superpower – the ability to communicate complex information at a single glance. Plus, let’s be honest, it just looks way cooler.

Okay, How Do We Do It? A Few Cool Methods

Alright, let’s get down to the nitty-gritty. There are a few ways to make this color magic happen in Leaflet, and I’ll walk you through some of the most effective:

  • The if…else Tango (Conditional Statements): This is your bread-and-butter approach. You basically tell Leaflet, “Hey, if this data point is this, make the marker this color; otherwise, make it that color.” Simple, right?

    javascript

    You may also like

    Field Gear Repair: Your Ultimate Guide to Fixing Tears On The Go

    Outdoor Knife Sharpening: Your Ultimate Guide to a Razor-Sharp Edge

    Don’t Get Lost: How to Care for Your Compass & Test its Accuracy

  • Disclaimer

    Our goal is to help you find the best products. When you click on a link to Amazon and make a purchase, we may earn a small commission at no extra cost to you. This helps support our work and allows us to continue creating honest, in-depth reviews. Thank you for your support!

    Categories

    • Climate & Climate Zones
    • Data & Analysis
    • Earth Science
    • Energy & Resources
    • Facts
    • General Knowledge & Education
    • Geology & Landform
    • Hiking & Activities
    • Historical Aspects
    • Human Impact
    • Modeling & Prediction
    • Natural Environments
    • Outdoor Gear
    • Polar & Ice Regions
    • Regional Specifics
    • Review
    • Safety & Hazards
    • Software & Programming
    • Space & Navigation
    • Storage
    • Water Bodies
    • Weather & Forecasts
    • Wildlife & Biology

    New Posts

    • The Unsung Hero of Cycling: Why You Need a Cycling Cap
    • Rainbow Running Lightweight Breathable Sneakers – Review
    • Appreciation Bracelet Sarcasm Birthday equipment – Review 2025
    • Riding Brakeless: Is it Legal? Let’s Brake it Down (Pun Intended!)
    • Zebra Stripes and Tiny Trips: A Review of the “Cute Backpack”
    • Honduras Backpack Daypack Shoulder Adjustable – Is It Worth Buying?
    • Decoding the Lines: What You Need to Know About Lane Marking Widths
    • Zicac DIY Canvas Backpack: Unleash Your Inner Artist (and Pack Your Laptop!)
    • Salomon AERO Glide: A Blogger’s Take on Comfort and Bounce
    • Decoding the Road: What Those Pavement and Curb Markings Really Mean
    • YUYUFA Multifunctional Backpack: Is This Budget Pack Ready for the Trail?
    • Amerileather Mini-Carrier Backpack Review: Style and Function in a Petite Package
    • Bradley Wiggins: More Than Just a British Cyclist?
    • Review: Big Eye Watermelon Bucket Hat – Is This Fruity Fashion Statement Worth It?

    Categories

    • Home
    • About
    • Privacy Policy
    • Disclaimer
    • Terms and Conditions
    • Contact Us
    • English
    • Deutsch
    • Français

    Copyright (с) geoscience.blog 2025

    We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of ALL the cookies.
    Do not sell my personal information.
    Cookie SettingsAccept
    Manage consent

    Privacy Overview

    This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
    Necessary
    Always Enabled
    Necessary cookies are absolutely essential for the website to function properly. These cookies ensure basic functionalities and security features of the website, anonymously.
    CookieDurationDescription
    cookielawinfo-checkbox-analytics11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics".
    cookielawinfo-checkbox-functional11 monthsThe cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional".
    cookielawinfo-checkbox-necessary11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary".
    cookielawinfo-checkbox-others11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other.
    cookielawinfo-checkbox-performance11 monthsThis cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance".
    viewed_cookie_policy11 monthsThe cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data.
    Functional
    Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features.
    Performance
    Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors.
    Analytics
    Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
    Advertisement
    Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. These cookies track visitors across websites and collect information to provide customized ads.
    Others
    Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet.
    SAVE & ACCEPT