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Reading this month’s article from The Economist, was a bit jarring, though not surprising as they discussed the marketplace for human bodies and body parts used in academic instruction.

Why the Cost of a Human Head has Plummeted

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VictoryXR is one of the world leaders in virtual reality educational product development. To date, we have created over 240 unique VR experiences spanning over 50 different learning units. With educational partners like Carolina Biological and Oxford University, we have been able to develop brand-new educational encounters for VR users across the globe. VictoryXR develops Virtual Reality content for the following systems: - HTC Vive - HTC Vive Focus - Windows Mixed Reality - Oculus Rift - Oculus Go - Oculus Quest - Pico - Lenovo Mirage (running Google Daydream) - Google Cardboard …as well as Augmented Reality (AR) content for both iPhones and Android phones

VictoryVR

Meet the Winners of Startups in North and Central America

What if historical figures lived today? Imagine, if you will, a world where Julius Caesar wasn’t just conquering lands but also the trending page, or Cleopatra wasn’t merely ruling Egypt but also the YouTube beauty community. I’ve reimagined some of the historical figures as today’s top influencers. Julius Caesar: The Empire Builder Instagram and Clubhouse Platforms: @TheRealEmperor Brand name: “From Senate to Start-up,” where he spills the tea on leadership skills. “From Gaul to Glory” — weekly adversity tales that rival the most dramatic telenovelas. Plus, tutorials on staying sharp in a toga. Topics: Limited edition gold-leaf Caesar crowns paired with a trendy beginner’s guide to Latin. Online course: “From Foe to Friend: The Caesar Charm School” because who said old-world charm is dead? And for the fitness fanatics, a workout plan with the catchphrase: “Conquer your workouts like you would Gaul.” Products: #JuliusJourneys #TogaTrends #GaulGains Hashtags: Cleopatra: The Original Queen Bee YouTube and Snapchat Platforms: @CleopatraCouture Brand name: Dive into queenly beauty hacks from the Nile that even the Kardashians would be jealous of. Weekly diplomacy diva sessions where Cleo drops truth bombs and gripping snakebite survival stories (move over, Bear Grylls). Topics: Adorn your desk with Cleopatra’s jewel-encrusted keyboard collection. DIY milk bath kits — “Soak Like a Queen” because self-care is always in. And, of course, an online summit: “From Pyramids to Platforms: Branding Like a Pharaoh.” Products: #QueenOfTheNile #CleoGlowUp #PharaohFabulous Hashtags: Sun Tzu: Your Strategy Guy Podcast and TikTok Platforms: @StrategistSun Brand name: Weekly “Art of War” business blitzes that make regular strategy sessions look like child’s play. “Mind Over Melee” mental challenges to train your brain. Plus, peace-time power play sessions for when you want to conquer, but keep it chill. Topics: Start your day right with the “Be the General of your Day” morning routine box. Plan your empire with the “War Room Wisdom” monthly planners and, of course, stealth-branded hoodies to awaken the ninja. Products: Hashtags: #WarriorWisdom #SunSessions #TzuTactics Socrates: The OG Question Master Medium and Twitter Platforms: @QuestionThisLife Brand name: Daily brain-twisting questions designed to elevate your existence and turn your morning coffee contemplative. Dive into “Plato’s Playlist,” a curated list of ageless wisdom from the ancient world. Plus, interactive, hemlock-free debate zones. Topics: “Think Deep, Drink Deep” philosophy over wine glasses. Subscribe to a box of monthly mind-benders because who needs Sudoku? Plus, “Dialogues with Socrates” mentorship webinars for the thousand true fans. Products: #SocraticQueries #DeepDiveDaily #PonderWithPlato Hashtags: Joan of Arc: The Fearless Femme LinkedIn and IGTV Platforms: @JoanJolts Brand name: Weekly “Armor in the Boardroom” sessions — being female, fearless, and breaking glass ceilings (with a sword). “Visionary Vibes”: Turn your midnight dreams into world-changing realities. And chill fireside chats (literal fire not included for safety reasons). Topics: Collaboration with Alicia Keys — “She’s on Fire” motivational cassette. Visionary leadership webinars (and, for an extra fee, real armour for those tough board meetings). Plus, a Saint Joan medallion because we all need a little divine on our side. Products: #ArmorAndAmbition #JoanJams #FearlessFemale Hashtags: Leonardo da Vinci: The Genius Pinterest, YouTube, and Skillshare Platforms: @LeosLounge Brand name: Dive into “Renaissance Routines” tailored for the modern creator. Bi-weekly chopper talks where Da Vinci muses on flying machines. And a revamped “Vitruvian Man” series for the 21st-century human, exploring the intersection of art, science, and the human body. Topics: DaVinci doodle drawing kits that make stick figures a thing of the past. “Mona Lisa Smile” morning affirmation cards to start your day with mystery and allure. And workshops titled “Unleashing your Inner Polymath” because why master one field when you can master them all? Products: #DaVinciDesigns #MonaMagic #PolymathPaths Hashtags: Queen Elizabeth II: The Monarch of Modern Times Instagram Live and Pinterest Boards Platforms: @LizTwoTrue Brand name: A window into “Windsor Whispers”: candid moments from Buckingham to Balmoral. Discover “Crown & Country,” a series showcasing the balance of tradition and progress. And for fashionistas, dive into “Hats & Handbags,” where timeless elegance meets modern flair. Topics: Elevate your style with the “Regal Radiance” accessory line, featuring brooches and scarves inspired by Her Majesty’s iconic looks. Dive into “Palace Protocols,” an online etiquette masterclass. And, for dog lovers, follow the “Corgi Chronicles” — an IG account, dishing on the royal pups’ adventures. Products: #LizLives #CrownChronicles #CorgyLife Hashtags: Confucius: The Sage of Social Media TikTok and In-Person Workshops Platforms: @ConfuciusClips Brand name: Start your day with “Wise Up With Confucius” daily bytes, offering bite-sized wisdom in between your cat videos. Dive deep into “Harmonize Your Hustle,” ancient strategies adapted for the 9–5 grind. Topics: Need advice? Introducing the “Ancestors’ Answer” oracle cards. Get your hands on harmony-at-home kits for that perfect Feng Shui living space. And don’t miss out on the “Family First” online workshop series — because if there’s one thing more complex than office politics, it’s family! Products: #ConfuciusConfessions #HarmonyHustle #NoodleNotes Hashtags: Marcus Aurelius: The Tim Ferriss of The Past Spotify and Patreon Platforms: @StoicStudio Brand name: Deep dive into modern stoicism tailored for the weekend warrior with “Meditative Musings for Metro Lives.” Sip on some candid “Coffee Thoughts” episodes. Let’s not forget the “Biohack Your Productivity Into Better Psychodelic Trip.” Topics: “Empire State of Mind” audio journaling prompts. Join “The Stoic Start-Up” online boot camp — resilience training with a touch of Roman flair. And jot down your daily reflections on “Meditations” themed notepads — old world charm, new world insights. Products: #MarcusMentions #StoicSips #EmpireEssentials Hashtags: Winston Churchill: The Bulldog of Branding Instagram Live and Podcasts Platforms: @ChurchillCharisma Brand name: Catch “Churchill Chats,” where Winston spills tea (or rather, whisky) on leading during tumultuous times and his candid takes on modern politics. Dive into “War Room Whispers,” a segment where he dishes on secrets from the historic bunkers. And don’t miss “Cigar Sessions” — smoky, insightful tales on diplomacy, decisions, and daring. Topics: Elevate your office with the “Churchill Choice” — a curated monthly box of Winston’s favourite cigars paired with tasting notes. Hungry for some leadership finesse? Sign up for “Victory Vignettes,” an online course on triumphing over adversity. If you’re feeling particularly cheeky, snag a limited edition “Winston’s Witticisms” calendar, keeping you chuckling and charged all year long. Products: #ChurchillChuckles #BulldogBranding #VictoryVibes Hashtags: Marie Curie: Radioactive Radiance Instagram Stories and TED Talks Platforms: @SassyScientist Brand name: Tune into “Curie’s Lab Chronicles,” where she demystifies the magic behind her glowing discoveries. Marie’s “Periodic Pointers” break down complex science into bite-sized, easy-to-digest content for budding chemists. And for those who appreciate a touch of drama, enjoy “Luminous Legacies” — candid stories of trials, triumphs, and the constant quest for knowledge. Topics: Grab the “Curie Kit” — a monthly science box with experiments you can conduct at home. Hungry for more? Join a masterclass: “From Pitchblende to Nobel Prizes.” And for those looking to add some sparkle to their wardrobe, check out the limited edition “Glow with Curie” line of luminescent jewellery. Products: #GlowGetter #CurieCraze #ScienceSass Hashtags: Jesus: The “Compassionate” Catalyst Instagram Live & Podcasts Platforms: @MiracleMentor Brand name: Dive deep with “Parable Perspectives,” where Jesus uses modern analogies to shine a light on age-old wisdom. “Mount Talks” are weekly heart-to-heart sessions where he delves into questions of faith, love, and transformation. And don’t miss out on “Miracle Moments” — astonishing real-life stories from followers who’ve found hope and healing. Topics: Elevate your spiritual journey with the “Blessed & Grateful” journal, designed to nurture gratitude and mindfulness. Craving deeper connections? Enrol in the “Walking on Water” meditation workshop series. Explore the “Nazareth Nurtured” collection: handcrafted sandals made in the very heart of where it all began. Products: #BlessedBeyondBelief #HealingHugs #ParablePerspectives Hashtags: Concluding The Digital Time Travel And there we have it — a peek into a world where history’s luminaries trade their traditional tools for smartphones. In all seriousness, we’re reminded that every age has its icons, its mediums, and its messages. The platforms may change, and the methods may evolve, but the quest to inspire (and sell) remains timeless. So, if you’re an influencer in the making, remember that the key to lasting influence isn’t just about trending — it’s about transcending. P.S. Who would you follow? Also published . here

If History Had Wi-Fi: Yesterday's Leaders, Today's Influencers

ইতিহাসে ওয়াই-ফাই থাকলে: গতকালের নেতারা, আজকের প্রভাবশালীরা

Wenn die Geschichte WLAN hätte: Die Führungskräfte von gestern, die Influencer von heute

Si la historia tuviera Wi-Fi: los líderes de ayer, los influyentes de hoy

Si l’histoire avait le Wi-Fi : les dirigeants d’hier, les influenceurs d’aujourd’hui

यदि इतिहास में वाई-फाई होता: कल के नेता, आज के प्रभावशाली व्यक्ति

もしも歴史に Wi-Fi があったら: 昨日のリーダー、今日の影響力者

역사에 Wi-Fi가 있었다면: 어제의 리더, 오늘의 영향력자

Se a história tivesse Wi-Fi: os líderes de ontem, os influenciadores de hoje

Если бы в истории был Wi-Fi: вчерашние лидеры, сегодняшние влиятельные лица

Tarihte Wi-Fi Olsaydı: Dünün Liderleri, Bugünün Etkileyicileri

Nếu lịch sử có Wi-Fi: Những nhà lãnh đạo của ngày hôm qua, những người có ảnh hưởng ngày nay

如果历史有 Wi-Fi：昨天的领导者，今天的影响者

In modern mobile application development, data visualization is a crucial part. Chart libraries play a key role in React Native applications, helping developers present and analyze data visually. There are many excellent chart libraries available in the React Native ecosystem. In this article, we will compare three popular chart libraries in the React Native community. Let's begin this comparative journey to delve into the differences between React Native ECharts, Victory Native, and React Native Chart Kit. Chart Library Introduction React Native Chart Kit was developed in 2018, it has been 5 years since its inception. With a cumulative download count of 2,840,757, it has garnered 2.5k+ stars on GitHub. It has become a highly popular library in the React Native community. React Native Chart Kit Victory Native is a chart library that was developed in 2015. It has been 7 years since its inception. With a high cumulative download count of 7,434,044, it has garnered an impressive 10.3k+ stars on GitHub. It is the longest-standing and most widely used chart library in the history of React Native. Victory Native React Native ECharts is a newly released chart library this year. It currently has 2,565 downloads and has received 363 stars on GitHub. As a rising star among React Native chart libraries, it holds great potential. With time, it is believed that will become one of the most popular chart libraries. React Native ECharts React Native ECharts Here is the comparison table for the basic data: React Native Chart Kit Victory Native React Native ECharts Creation Date 2018 2015 2023 Downloads 2,840,757 7,434,044 2565 Unpacked Size 399kB 78.4kB 169kB Github star 2.5k+ 10.3k+ 363 Last publish a year ago a month ago a month ago Comparison of Basic Principles The main approach is to utilize React Native's native view components to create the basic structure and layout of the charts, such as View, Text, etc. Additionally, libraries like react-native-svg and paths-js are used for rendering the charts with vector graphics. React Native Chart Kit also relies on React Native's native views combined with SVG for rendering. It also draws inspiration from D3 (Data-Driven Documents) by mapping data to chart elements and using scales to transform data values and positions. Victory Native fetches the SVG graphic data of ECharts charts and rewrites the SVGPainter of ECharts. By utilizing the existing chart data of ECharts, it renders the charts on the React Native side using either react-native-svg or react-native-skia. React Native ECharts Code Writing Comparison Let's take the commonly used area chart as an example. Now, let's see how they are implemented using the following code snippets: React Native Chart Kit import { LineChart } from"react-native-chart-kit";
import { StyleSheet, View, Text } from 'react-native';
const chartConfig = {
    backgroundGradientFrom: "#fff",
    backgroundGradientFromOpacity: 0,
    backgroundGradientTo: "#fff",
    backgroundGradientToOpacity: 0.5,
    color: (opacity = 1) => `rgba(14, 17, 22, ${opacity})`,
    strokeWidth: 2, // optional, default 3
    barPercentage: 0.5,
    useShadowColorFromDataset: false // optional
};
export const LineChart1 = props => {
    const data = {
        labels: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
        // labels: props.date,
        datasets: [
          {
            data: [150, 230, 224, 218, 135, 147, 260],
            // color: (opacity = 1) => `rgba(134, 65, 244, ${opacity})`, // optional
            strokeWidth: 2 // optional
          }
        ],
      };
    return (
        <View style={styles.container}>
            <Text>React Native Chart Kit</Text>
            <LineChart
                data={data}
                width={400}
                height={200}
                yAxisInterval={1}
                animate
                chartConfig={chartConfig}
                withDots={false}
            />
      </View>
    )

} Victory Native import { StyleSheet, View, Text } from "react-native";
import {
  VictoryArea,
  VictoryChart,
  VictoryLine,
  VictoryTheme,
  VictoryScatter,
} from "victory-native";

export const LineChart2 = props => {
  const data = [
      { x: 'Mon', y: 150 },
      { x: 'Tue', y: 230 },
      { x: 'Wed', y: 224 },
      { x: 'Thu', y: 218 },
      { x: 'Fri', y: 135 },
      { x: 'Sat', y: 147 },
      { x: 'sun', y: 260 },
    ];
  return (
    <View style={styles.container}>
      <Text style={styles.title}>Victory Native</Text>
      <VictoryChart
        theme={VictoryTheme.material}
        height={250}
        width={400}
      >
        <VictoryArea
          style={{ data: { fill: "rgba(230, 231, 231,0.8)" } }}
          data={data}
          animate={{
            duration: 2000,
            onLoad: { duration: 1000 },
          }}
        />
        <VictoryLine
          data={data}
          style={{ data: { stroke: "#d6d6d7", strokeWidth: 2 } }}
        />
        <VictoryScatter
          data={data}
          size={4}
          style={{ data: { fill: "#24262a" } }}
        />
      </VictoryChart>
    </View>
  );
}; React Native ECharts import { StyleSheet, Text, View } from 'react-native';
import { useRef, useEffect } from 'react';
import * as echarts from 'echarts/core';
import { LineChart } from 'echarts/charts';
import { GridComponent } from 'echarts/components';
import { SVGRenderer, SkiaChart } from '@wuba/react-native-echarts';
echarts.use([SVGRenderer, LineChart, GridComponent]);
export const LineCharts = props => {
  const skiaRef = useRef(null);
  useEffect(() => {
    const option = {
      xAxis: {
        type: 'category',
        data:  ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
        splitLine: {
          show: true,
          lineStyle: {
            type: 'dashed',
          },}
      },
      yAxis: {
        type: 'value',
        min: 'dataMin',
        splitLine: {
          show: true,
          lineStyle: {
            type: 'dashed',
          },}
      },
      series: [
        {
          data: [150, 230, 224, 218, 135, 147, 260],
          type: 'line',
          areaStyle: {
            color: 'rgba(230, 231, 231,0.8)'
          },
          lineStyle: {
            color: '#d6d6d7'
          },
          symbol: 'circle',
          symbolSize: 8,
          itemStyle: {
            color: '#24262a',
          },
        },
      ],
    };
    let chart;
    if (skiaRef.current) {
      chart = echarts.init(skiaRef.current, 'light', {
        renderer: 'svg',
        width: 400,
        height: 300,
      });
      chart.setOption(option);
    }
    return () => chart?.dispose();
  }, []);
  return (
    <View style={styles.container}>
        <Text style={styles.title}>React Native ECharts</Text>
        <SkiaChart ref={skiaRef} />
    </View>
  );
} The effect is displayed as follows: From a code-writing perspective, is data-driven, so you typically pass in data and configure related styles through props. Most importantly, it acts more like a set of tools that you can DIY. You can use various components exposed by Victory to customize the charts according to your needs. For example, if you want to add a line and data points to the area chart, you would need to additionally include VictoryLine and VictoryScatter components. Victory Native React Native Echarts and are similar in usage. Both libraries centralize data and styles within the configuration options. They are more like fully featured tools that allow you to transform the charts by modifying the configurations. Comparatively, the configuration code for is simpler, but it may lack some advanced customization options. For example, enabling animation or setting a specific starting value for the y-axis might not be achievable. React Native Chart Kit React Native Chart Kit In terms of writing code, I prefer the configuration-based approach. It is straightforward, easy to grasp, and can improve development efficiency for developers. Development Experience Comparison of Rendering Performance When it comes to regular charts such as area, bar, and pie charts, all three libraries perform well with small datasets, providing smooth rendering. However, as the data size reaches the order of thousands, noticeable performance differences become apparent. and experience significant lags and, in the case of larger datasets, Victory may even crash. On the other hand, benefits from ECharts' default data sampling mechanism, which reduces the number of data points when rendering large amounts of data. This helps avoid overcrowding the chart and performance degradation. ECharts automatically sample a relatively small number of data points based on the width of the plotting area and the number of data points, reducing computational and rendering time. Victory Native React Native Chart Kit React Native ECharts Leveraging this mechanism, demonstrates significantly better rendering performance when dealing with large datasets. React Native ECharts Here is an example of rendering an area chart using randomly generated 200 data points: As we can see, still maintain relatively good rendering performance. On the other hand, adjustments to data and coordinates are required when using the other two libraries to meet specific business requirements. React Native ECharts When we increase the test data to 2000 points, exhibits noticeable rendering lag, while throws an error stating Maximum call stack size is exceeded. Meanwhile, , benefiting from data sampling, still deliver satisfactory rendering results: React Native Chart Kit Victory Native React Native ECharts Comparison of Chart Variety Currently, supports a relatively limited number of chart types. It mainly covers six specific types of charts, which can fulfill most basic business requirements. However, if there is a need for other types of charts, additional libraries may need to be introduced. React Native Chart Kit React Native Chart Kit The following image shows most of the chart types that can cover, and it can be seen that the variety is relatively limited. 😭 Currently, the developers are continuously maintaining the library and may add more chart types in the future. React Native Chart Kit When it comes to chart variety, offers a greater range compared to . However, due to the nature of Victory's approach, which involves assembling components to create different types of charts, developers need to have a good understanding of component composition and possess solid coding skills. Additionally, the examples provided on the official Victory website may not be beginner-friendly, as the supported chart instances may not be immediately intuitive. Overall, using requires a higher level of coding proficiency and logical thinking. Victory Native Victory Native React Native Chart Kit Victory Native The following image showcases the main components provided by Victory on their official website. It can be observed that there are significantly more options available compared to . Moreover, primarily relies on combining these components, such as points, lines, areas, and axes, to create various types of charts. This allows for a broader range of supported chart types. React Native Chart Kit Victory Native You can directly refer to the examples on the ECharts official website, where various types of charts are showcased in a highly intuitive manner. Developers can use the configuration options to customize the charts according to their needs. Currently, supports rendering most of the chart types that ECharts offers. React Native ECharts React Native ECharts utilizes the SVG data from ECharts, which means users can render a wide range of different chart types by simply following the examples provided on the ECharts website and configuring their settings😍 React Native ECharts The following image showcases some chart types that cannot be easily implemented or require complex combinations using other libraries. However, with , you can effortlessly achieve these charts by referring to the documentation🚀 React Native ECharts Comparison of Guide Getting started with primarily involves using the documentation and configuration options provided by the library's authors, which can be found on GitHub or npm. By referring to these resources, developers can easily implement chart rendering in their projects. React Native Chart Kit On the other hand, has its , where developers can assemble charts by referring to the provided components and related code in the documentation. However, the website offers a large number of components and elements, making it difficult for developers to quickly find the desired examples. Implementing complex charts often requires developers to think of their implementation methods, which can lower development efficiency. Victory Native website Compared to and , has several advantages: Victory Native React Native Chart Kit React Native ECharts Documents The description provided in the of is more clear, comprehensive, and provides ready-to-use examples. Developers can easily understand the library's features, configurations, and usage through the documentation. Additionally, there are numerous available on the official ECharts website, which further assists developers in quickly implementing various types of charts. official documentation Victory Native usage examples Online Preview Just like the ECharts library, provides an online preview and testing support. You can directly copy the chart configuration to see how it renders in React Native. React Native ECharts Click here for an online preview Multiterminal code also support component reuse on the web, enabling cross-platform requirements and achieving code sharing across multiple platforms. It effortlessly achieves code uniformity and ensures consistency of charts across different platforms, thus enhancing our development efficiency. React Native ECharts Support for two rendering modes supports two rendering modes: Svg and Skia. It is implemented based on react-native-svg and react-native-skia. react-native-skia utilizes the Skia Graphics Library, which is a high-performance graphics rendering engine that provides faster drawing and rendering speeds. It is a boon for developers who want to experience Skia's capabilities. React Native ECharts Conclusion Finally, let's compare the performance of these three chart libraries from the following perspectives: React Native Chart Kit Victory Native React Native ECharts Basic Chart Suitability ✅ ✅ ✅ Chart Variety ➖ ✅ ✅ Rendering for Large Data ➖ ➖ ✅ Ease of Development ✅ ➖ ✅ Multiterminal code ➖ ➖ ✅ It is undeniable that both and are excellent chart libraries for React Native. However, the newly introduced has certain advantages in terms of applicability and ease of entry. Especially in some relatively complex but common charts, such as path charts, radar charts, and candlestick charts, provides examples that allow developers to easily implement them by simply modifying the data in the example code. Victory Native React Native Chart Kit React Native ECharts React Native ECharts In these scenarios, is highly recommended as it greatly improves development efficiency. Additionally, for projects with a high demand for various types of charts, the rich collection of chart examples provided by makes it easier for us to handle diverse chart requirements😁 React Native ECharts React Native ECharts Author: xuanweiH Also published . here

React Native ECharts VS Victory Native VS React Native Chart Kit: Which Solution is Better?

While working on , we’re seeing a lot of different visualization libraries. Given that Cube.js provides an API layer for analytics on top of an SQL database and doesn’t play on the visualization field, any charting library can be used to build dashboards with it. That’s why we’re always on a search for a nice and developer-friendly visualization library. Cube.js The list below is for React-specific libraries. I’ll try to build almost the same stacked bar chart with axes formatting, legend and tooltip using every one of it. For the data backend, we’ll use Cube.js hosted on Heroku. I’ll also use , which uses the technique and doesn’t render anything itself, letting us build whatever we want with any charting library. Cube.js React binding render props Along the way, I’ll also use two very handy libraries— and for dates and numbers formatting, respectively. moment.js numeral.js As a data input, we are going to use the method from the Cube.js Javascript client. It returns an array of data, and in our case, it looks like this: resultSet.chartPivot() [
  { : , : , : , : },
  { : , : , : , : },
  …
] "x" "2017-01-01T00:00:00.000" "completed, Orders.count" 208 "processing, Orders.count" 252 "shipped, Orders.count" 233 "x" "2017-02-01T00:00:00.000" "completed, Orders.count" 188 "processing, Orders.count" 209 "shipped, Orders.count" 222 Now, let’s jump to the list. If you don’t see your favorite library or just want me to add one more—just ping me in this Public Slack Community . I’m happy to add as many libraries as I can to the list. Recharts provides a set of modular charting components and does a great job by letting you mix those components together to easily build things like a . Recharts composed line and bar chart It is the most popular library to date. It has more than 11k stars on Github, but a huge number (600 to date) of open issues as well. The documentation is quite extensive but lacks details in some parts. You can find a bunch of examples at , which could be a good starting point to building your own charts. Rechart’s website Recharts has a bunch of options for customization. Besides that, it allows low-level customization via custom SVG elements. Here is how to build our stacked bar chart in Recharts: In this and all the following examples I'm using colors, dateFormatter, and numberFormatter variables. Here is how they are defined: numberFormatter = numeral(item).format( ); dateFormatter = moment(item).format( ); colors = [ , , ]; const => item "0,0" const => item "MMM YY" const "#7DB3FF" "#49457B" "#FF7C78" ({ resultSet, colors, dateFormatter, numberFormatter }) => ( <BarChart data={resultSet.chartPivot()}>
      <XAxis tickFormatter={dateFormatter} dataKey="x" />
      <YAxis tickFormatter={numberFormatter} />
      {resultSet.seriesNames().map((series, i) => (
        <Bar
          stackId="a"
          dataKey={series}
          name={series.split(",")[0]}
          fill={colors[i]}
        />
      ))}
      <Legend />
      <Tooltip labelFormatter={dateFormatter} formatter={numberFormatter} />
    </BarChart>
  </ResponsiveContainer>
); export default < = = > ResponsiveContainer width "100%" height {300} Give it a try in the CodeSanbox. Victory follows the same composable pattern as Recharts. It is developed by , which has other solid open-source libraries besides Victory as well. It is the only library on the list that also works with React Native. Victory Formidable It’s the second most popular library after Recharts with more than 7K stars on Github, but has 5 times less open issues than Recharts. Victory has a . community chat on Spectrum It is and has an . well documented examples gallery Victory comes with two themes: grayscale and material, and allows you to create customer themes to have a consistent look across all the charts. Below you can see the code for our stacked bar chart with Victory: transformResult = resultSet.chartPivot().map( ({ : element.x, : element[series] })); ({ resultSet, dateFormatter, colors, numberFormatter }) => ( <VictoryChart
      containerComponent={
        <VictoryVoronoiContainer
          voronoiDimension="x"
          labels={(d, i) => `${resultSet.seriesNames()[i]}: ${d.y}`}
          labelComponent={
            <VictoryTooltip cornerRadius={0} flyoutStyle={{ fill: "white" }} />
          }
        />
      }
      domainPadding={{ x: 20, y: [0, 20] }}
    >
      <VictoryLegend
        colorScale={colors}
        data={resultSet.seriesNames().map(series => ({
          name: series.split(",")[0]
        }))}
        orientation="horizontal"
        y={275}
        x={130}
      />
      <VictoryAxis tickFormat={dateFormatter} tickCount={8} />
      <VictoryAxis dependentAxis />
      <VictoryStack colorScale={colors}>
        {resultSet.seriesNames().map((series, i) => (
          <VictoryBar key={i} data={transformResult(series, resultSet)} />
        ))}
      </VictoryStack>
    </VictoryChart>
  </div>
); const ( ) => series, resultSet => element x y export default < = > div height {300} Give it a try in the CodeSanbox. Nivo As well as Recharts and Victory, is built on top of D3 and is React-specific. But unlike previous libraries it is not composable. It provides one component per chart type and this component is configured via multiple props. Nivo is distributed as a set of packages for specific chart types, for example, @nivo/bar. So, one needs to install a specific package to use a specific chart type. Nivo The project itself is quite active; it has more than 5k stars on Github and almost 300 members in the . community chat It has interactive documentation, where you can build config for your chart. Although it is nice, It lacks a good old text API reference and search option. It also has a . It helped me a lot to shortcut the time to build the first chart. Same as Victory, Nivo lets you create your own theme to have a consistent look across all the charts. Storybook with examples We’re going to use the @nivo/bar package for our stack bar chart; you can find a code sample and demo below. CodeSandbox ticksFormmater = { valueIndex = data.map( i.x).indexOf(value); (valueIndex % .floor(data.length / ticksCount) === ) { dateFormatter(value);
  } ;
}; ({ resultSet, colors, dateFormatter, numberFormatter }) => ( <ResponsiveBar
      enableLabel={false}
      colors={colors}
      data={resultSet.chartPivot()}
      keys={resultSet.seriesNames()}
      indexBy="x"
      enableGridY={false}
      padding={0.3}
      margin={{ top: 60, right: 80, bottom: 60, left: 40 }}
      axisLeft={{
        format: numberFormatter
      }}
      axisBottom={{
        format: value =>
          ticksFormmater(8, value, resultSet.chartPivot(), dateFormatter)
      }}
      tooltip={({ id, value, color }) => (
        <strong style={{ color }}>
          {id.split(",")[0]}: {numberFormatter(value)}
        </strong>
      )}
      legends={[
        {
          anchor: "bottom",
          direction: "row",
          translateY: 50,
          itemsSpacing: 2,
          itemWidth: 150,
          itemHeight: 20,
          itemDirection: "left-to-right"
        }
      ]}
    />
  </div> //https://github.com/plouc/nivo/issues/138#issuecomment-373015114 const ( ) => ticksCount, value, data, dateFormatter const => i if Math 0 return return "" export default < = }}> div style {{ height: 300 ); Give it a try in the CodeSanbox. BizCharts is React-specific visualization library based on , a visualization grammar. It is backed by Alibaba and plays nicely with Ant Design Framework. BizCharts G2 It has almost 4k stars on Github, but the majority of development is in Chinese, same for most of the documentation. I think the team is doing a great job of translating the docs, but it is still a work in progress. Though, it lacks documentation in English the API is pretty straightforward. The only hard thing is to re-format the data into the specific format for the stacked chart. stackedChartData = { data = resultSet
    .pivot()
    .map( yValuesArray.map( ({ : resultSet.axisValuesString(xValues, ), : resultSet.axisValuesString(yValues, ), : m && .parseFloat(m)
      }))
    )
    .reduce( a.concat(b)); data;
}; ({ resultSet, dateFormatter, colors, numberFormatter }) => ( <Axis name="x" label={{ formatter: dateFormatter }} />
        <Axis label={{ formatter: numberFormatter }} name="measure" />
        <Tooltip />
        <Geom
          type="intervalStack"
          position={`x*measure`}
          color={["color", colors]}
        />
        <Legend itemFormatter={item => item.split(",")[0]} />
      </Chart>
    )}
  />
); const => resultSet const ( ) => { xValues, yValuesArray } ( ) => [yValues, m] x ", " color ", " measure Number ( ) => a, b return export default < = { } }} = = > Chart scale {{ x: tickCount: 10 height {400} data {stackedChartData(resultSet)} forceFit . Give it a try in the CodeSanbox React-vis is being developed by Uber and seems quite active with 5.4k Github stars, 150 open issues, and a lot of recent commits. It is modular, like most of the libraries on the list. It comes with some nice default styles, which should be imported separately as CSS files. React-vis Same as Nivo, it has Storybook with examples. The components API is also well documented. On the customization side you can control the look and feel via custom CSS styles. React-vis also provides a specific component for building custom SVG charts— . CustomSVGSeries The API is similar to Victory's. You can see I'm using almost the same transformResult from Victory's snippet. transformResult = resultSet
    .chartPivot()
    .map( ({ : .parse(element.x), : element[series] })); ({ resultSet, dateFormatter, colors, numberFormatter }) => ( <XAxis tickFormat={dateFormatter} tickSize={8} />
    <YAxis />
    {resultSet.seriesNames().map((series, i) => (
      <VerticalBarSeries
        cluster="stack 1"
        key={i}
        color={colors[i]}
        data={transformResult(series, resultSet, dateFormatter)}
      />
    ))}
    <DiscreteColorLegend
      colors={colors}
      items={resultSet.seriesNames().map(i => i.split(",")[0])}
      orientation="horizontal"
      style={{ position: "absolute", left: 130, bottom: -30 }}
    />
  </XYPlot>
); const ( ) => series, resultSet, dateFormatter => element x Date y export default < = = = = > XYPlot xType "time" height {300} width {500} stackBy "y" . Give it a try in the CodeSanbox If you don’t see your favorite library or just want me to add one more—just ping me in this Public Slack Community . I’m happy to add as many libraries as I can to the list.

Five Trending React Visualization Libraries 

JOHN CRUMB'S VICTORY

On the Culminating Point of Victory

Strategic Means of Utilising Victory

On War by Carl Von Clausewitz, is part of the HackerNoon Books Series. You can jump to any chapter in this book here . Effects of Victory Book IV: Chapter X. Effects of Victory According to the point from which our view is taken, we may feel as much astonished at the extraordinary results of some great battles as at the want of results in others. We shall dwell for a moment on the nature of the effect of a great victory. Three things may easily be distinguished here: the effect upon the instrument itself, that is, upon the Generals and their Armies; the effect upon the States interested in the War; and the particular result of these effects as manifested in the subsequent course of the campaign. If we only think of the trifling difference which there usually is between victor and vanquished in killed, wounded, prisoners, and artillery lost on the field of battle itself, the consequences which are developed out of this insignificant point seem often quite incomprehensible, and yet, usually, everything only happens quite naturally. We have already said in the seventh chapter that the magnitude of a victory increases not merely in the same measure as the vanquished forces increase in number, but in a higher ratio. The moral effects resulting from the issue of a great battle are greater on the side of the conquered than on that of the conqueror: they lead to greater losses in physical force, which then in turn react on the moral element, and so they go on mutually supporting and intensifying each other. On this moral effect we must therefore lay special weight. It takes an opposite direction on the one side from that on the other; as it undermines the energies of the conquered so it elevates the powers and energy of the conqueror. But its chief effect is upon the vanquished, because here it is the direct cause of fresh losses, and besides it is homogeneous in nature with danger, with the fatigues, the hardships, and generally with all those embarrassing circumstances by which War is surrounded, therefore enters into league with them and increases by their help, whilst with the conqueror all these things are like weights which give a higher swing to his courage. It is therefore found, that the vanquished sinks much further below the original line of equilibrium than the conqueror raises himself above it; on this account, if we speak of the effects of victory we allude more particularly to those which manifest themselves in the army. If this effect is more powerful in an important combat than in a smaller one, so again it is much more powerful in a great battle than in a minor one. The great battle takes place for the sake of itself, for the sake of the victory which it is to give, and which is sought for with the utmost effort. Here on this spot, in this very hour, to conquer the enemy is the purpose in which the plan of the War with all its threads converges, in which all distant hopes, all dim glimmerings of the future meet, fate steps in before us to give an answer to the bold question.—This is the state of mental tension not only of the Commander but of his whole Army down to the lowest waggon-driver, no doubt in decreasing strength but also in decreasing importance. According to the nature of the thing, a great battle has never at any time been an unprepared, unexpected, blind routine service, but a grand act, which, partly of itself and partly from the aim of the Commander, stands out from amongst the mass of ordinary efforts, sufficiently to raise the tension of all minds to a higher degree. But the higher this tension with respect to the issue, the more powerful must be the effect of that issue. Again, the moral effect of victory in our battles is greater than it was in the earlier ones of modern military history. If the former are as we have depicted them, a real struggle of forces to the utmost, then the sum total of all these forces, of the physical as well as the moral, must decide more than certain special dispositions or mere chance. A single fault committed may be repaired next time; from good fortune and chance we can hope for more favour on another occasion; but the sum total of moral and physical powers cannot be so quickly altered, and, therefore, what the award of a victory has decided appears of much greater importance for all futurity. Very probably, of all concerned in battles, whether in or out of the Army, very few have given a thought to this difference, but the course of the battle itself impresses on the minds of all present in it such a conviction, and the relation of this course in public documents, however much it may be coloured by twisting particular circumstances, shows also, more or less, to the world at large that the causes were more of a general than of a particular nature. He who has not been present at the loss of a great battle will have difficulty in forming for himself a living or quite true idea of it, and the abstract notions of this or that small untoward affair will never come up to the perfect conception of a lost battle. Let us stop a moment at the picture. The first thing which overpowers the imagination—and we may indeed say, also the understanding—is the diminution of the masses; then the loss of ground, which takes place always, more or less, and, therefore, on the side of the assailant also, if he is not fortunate; then the rupture of the original formation, the jumbling together of troops, the risks of retreat, which, with few exceptions may always be seen sometimes in a less sometimes in a greater degree; next the retreat, the most part of which commences at night, or, at least, goes on throughout the night. On this first march we must at once leave behind, a number of men completely worn out and scattered about, often just the bravest, who have been foremost in the fight who held out the longest: the feeling of being conquered, which only seized the superior officers on the battlefield, now spreads through all ranks, even down to the common soldiers, aggravated by the horrible idea of being obliged to leave in the enemy’s hands so many brave comrades, who but a moment since were of such value to us in the battle, and aggravated by a rising distrust of the chief, to whom, more or less, every subordinate attributes as a fault the fruitless efforts he has made; and this feeling of being conquered is no ideal picture over which one might become master; it is an evident truth that the enemy is superior to us; a truth of which the causes might have been so latent before that they were not to be discovered, but which, in the issue, comes out clear and palpable, or which was also, perhaps, before suspected, but which in the want of any certainty, we had to oppose by the hope of chance, reliance on good fortune, Providence or a bold attitude. Now, all this has proved insufficient, and the bitter truth meets us harsh and imperious. All these feelings are widely different from a panic, which in an army fortified by military virtue never, and in any other, only exceptionally, follows the loss of a battle. They must arise even in the best of Armies, and although long habituation to War and victory together with great confidence in a Commander may modify them a little here and there, they are never entirely wanting in the first moment. They are not the pure consequences of lost trophies; these are usually lost at a later period, and the loss of them does not become generally known so quickly; they will therefore not fail to appear even when the scale turns in the slowest and most gradual manner, and they constitute that effect of a victory upon which we can always count in every case. We have already said that the number of trophies intensifies this effect. It is evident that an Army in this condition, looked at as an instrument, is weakened! How can we expect that when reduced to such a degree that, as we said before, it finds new enemies in all the ordinary difficulties of making War, it will be able to recover by fresh efforts what has been lost! Before the battle there was a real or assumed equilibrium between the two sides; this is lost, and, therefore, some external assistance is requisite to restore it; every new effort without such external support can only lead to fresh losses. Thus, therefore, the most moderate victory of the chief Army must tend to cause a constant sinking of the scale on the opponent’s side, until new external circumstances bring about a change. If these are not near, if the conqueror is an eager opponent, who, thirsting for glory, pursues great aims, then a first-rate Commander, and in the beaten Army a true military spirit, hardened by many campaigns are required, in order to stop the swollen stream of prosperity from bursting all bounds, and to moderate its course by small but reiterated acts of resistance, until the force of victory has spent itself at the goal of its career. And now as to the effect of defeat beyond the Army, upon the Nation and Government! It is the sudden collapse of hopes stretched to the utmost, the downfall of all self-reliance. In place of these extinct forces, fear, with its destructive properties of expansion, rushes into the vacuum left, and completes the prostration. It is a real shock upon the nerves, which one of the two athletes receives from the electric spark of victory. And that effect, however different in its degrees, is never completely wanting. Instead of every one hastening with a spirit of determination to aid in repairing the disaster, every one fears that his efforts will only be in vain, and stops, hesitating with himself, when he should rush forward; or in despondency he lets his arm drop, leaving everything to fate. The consequence which this effect of victory brings forth in the course of the War itself depend in part on the character and talent of the victorious General, but more on the circumstances from which the victory proceeds, and to which it leads. Without boldness and an enterprising spirit on the part of the leader, the most brilliant victory will lead to no great success, and its force exhausts itself all the sooner on circumstances, if these offer a strong and stubborn opposition to it. How very differently from Daun, Frederick the Great would have used the victory at Kollin; and what different consequences France, in place of Prussia, might have given a battle of Leuthen! The conditions which allow us to expect great results from a great victory we shall learn when we come to the subjects with which they are connected; then it will be possible to explain the disproportion which appears at first sight between the magnitude of a victory and its results, and which is only too readily attributed to a want of energy on the part of the conqueror. Here, where we have to do with the great battle in itself, we shall merely say that the effects now depicted never fail to attend a victory, that they mount up with the intensive strength of the victory—mount up more the more the whole strength of the Army has been concentrated in it, the more the whole military power of the Nation is contained in that Army, and the State in that military power. But then the question may be asked, Can theory accept this effect of victory as absolutely necessary?—must it not rather endeavour to find out counteracting means capable of neutralising these effects? It seems quite natural to answer this question in the affirmative; but heaven defend us from taking that wrong course of most theories, out of which is begotten a mutually devouring Pro et Contra. Certainly that effect is perfectly necessary, for it has its foundation in the nature of things, and it exists, even if we find means to struggle against it; just as the motion of a cannon ball is always in the direction of the terrestrial, although when fired from east to west part of the general velocity is destroyed by this opposite motion. All War supposes human weakness, and against that it is directed. Therefore, if hereafter in another place we examine what is to be done after the loss of a great battle, if we bring under review the resources which still remain, even in the most desperate cases, if we should express a belief in the possibility of retrieving all, even in such a case; it must not be supposed we mean thereby that the effects of such a defeat can by degrees be completely wiped out, for the forces and means used to repair the disaster might have been applied to the realisation of some positive object; and this applies both to the moral and physical forces. Another question is, whether, through the loss of a great battle, forces are not perhaps roused into existence, which otherwise would never have come to life. This case is certainly conceivable, and it is what has actually occurred with many Nations. But to produce this intensified reaction is beyond the province of military art, which can only take account of it where it might be assumed as a possibility. If there are cases in which the fruits of a victory appear rather of a destructive nature in consequence of the reaction of the forces which it had the effect of rousing into activity—cases which certainly are very exceptional—then it must the more surely be granted, that there is a difference in the effects which one and the same victory may produce according to the character of the people or state, which has been conquered. About HackerNoon Book Series: We bring you the most important technical, scientific, and insightful public domain books. This book is part of the public domain. Carl von Clausewitz (2006). On War. Urbana, Illinois: Project Gutenberg. Retrieved https://www.gutenberg.org/cache/epub/1946/pg1946-images.html This eBook is for the use of anyone anywhere at no cost and with almost no restrictions whatsoever. You may copy it, give it away or re-use it under the terms of the Project Gutenberg License included with this eBook or online at www.gutenberg.org , located at https://www.gutenberg.org/policy/license.html .

VictoryVR

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VictoryVR

VictoryVR

victoryvr.biz

31 employees

Since 2016

COMPANY RANKING

VictoryVR

EVERGREEN INDEX #2088

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