You must master the basic design principle of data visualization (below)

Lead: In the completed “This article” series, the author describes the huge data system from a number of data sources, acquisition, and cleaning, etc.; after the series of articles, many workplace work Friends are very interested in data on the data of “top”, I hope to understand the workplace, how to perform data on the industry, then, then, the author will start from scratch, take you into the data visual design!

I. Introduction

In the previous article, we have systematically explained the definition of data visualization, what is good data visualization? And the first principle of data visualization design – letter; second principles – reached.

Today, let’s first explain the basic principles of the last 1 data visualization – Ya.

Second, data visualization Third basic principle – Ya

Data visualization The third basic principle – Ya, that is, design can make people pleasing visualization.

If, “letter” and “Da” are to be able to achieve the initiator, then the implementation of “Ya” needs long-term precipitation and aesthetic influence!

Here, the author takes everyone to appreciate some data visualizations that can be called “Ya”:

1. Orderly intertwined color and density

See the picture below, is it full of senior?

This is Fairland Vivias and Martin Vartenberg’s work “Wind Map”, they use visualization as tools and expression, plotting the flow mode of the wind in the United States.

It is not difficult to see that this American wind speed visual chart will only outline the information only through two elements (color, lines).

For color, we know that the high-end feeling of charts is usually needed: black, gray + gradient / light-like color matching, in this example, the US land is subjected to pure black, while the white line is concentrated on the wind speed. , Wind direction and other information, no excessive color is dotted to give people a slogging redundancy.

In terms of density, the more concentrated places on the white lines on the map, the greater the wind speed. The wind direction can also be visualized through the line trend.

On the basis of focus on the above information, Fairland Vivas and Martin Vartenberg began to do the interaction efficacy of visual charts, and they have weather data from the National Forecast Database (National Forecast Database). Collect, then on the basis of visualization chart, access real-time data, update each hour, and the people can directly view the location wind speed through the interactive chart on the website, just hover the mouse to somewhere, interactive chart Displays the wind speed and direction of the ground.

From the above example, we are not difficult to see the extreme utilization of the authors of color, density, etc., and the full picture is natural, there is no redundant coordinates, text prompts; and this also mentioned in the previous article Visualization Second Basic Principle – Daxie, Eointle Negative (a good visualization) should maximize the prior data ink, remove all unnecessary parts).

2. Effective and interaction, let your graph move

As shown below, the pyramid diagram of the deaths selected from the US statistical mapbook published in 1874, using the length to show the distribution of different ages and gender deaths in the state; the horizontal axis of each picture is derived The number of people, the vertical axis, uses a digital classification to represent the age.

Although we can get through the pyramids of each year, we can get the number of deaths in the year, the changes in death age, but the overall change in the US death in more than 20 years is still very difficult (this requires horizontal contrasting every year. The trend of the pyramid map, compared 20 years, this visual fatigue is not a little bit …).

At this point, let your pyramid graphic move, it is necessary. After reading this picture, look at this case, is it clear?

The picture below comes from the “Future US” project of PEW, which has a comprehensive review of the US demographic data, which is prepared into a large and beautiful interactive data visualization project, which is made of direct visuality “chapter” “composition.

The same is the pyramid map, there is no movement and no movement difference, is it an eye? Obviously, it is – through the energy efficiency to show the change of the trend of demographic trends in the year, which effectively reduces the visual fatigue of the audience, which is one of the connotations of “Ya”, allowing the audience to get the most in the shortest time. Potential information.

These two books can be referred to:

The Visual Display of Quantitative Information [by Edward Tufte]; Simple but classic book, we have previously been submitted by the author Edward Tufte of the book by the author Edward Tufte in the “Letter”. The measurement of the clarity and data use of the work has a more clear and reliable quantization standard.

Information Visualization, Third Edition: Perception For Design [By Colin Ware]; Book is old, but the classic content is still very reference value, such as psychological perception, human vision and brain work mode have the design of today’s data visualization.great help.Fourth, conclusion

The author has brought you the last found principle of data visual design – Ya, I believe everyone has some mastery, and the other 2 basic principles, I have explained it for everyone in the previous 2 articles.

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