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Related Concept Videos

Plotting of Topographic Maps01:29

Plotting of Topographic Maps

Topographic maps represent the Earth's surface features using contour lines, which connect points of equal elevation to create a two-dimensional representation of three-dimensional terrain. Creating a topographic map requires a systematic approach.Begin by plotting a scaled grid and marking intersections corresponding to the survey's elevation data points. Assign elevation values at these intersections to build the base map. Next, determine contour levels using a consistent contour interval,...
Multiple Bar Graph01:07

Multiple Bar Graph

As the name suggests, a multiple bar graph is the same as a bar graph but has multiple bars to depict relationships between different data values. One can include as many parameters as possible. However, each parameter must have the same unit of measurement.
Each bar or column in the multiple bar graph represents a data value. These graphs are used primarily in interrelating two or more sets of data. The categories of different kinds of data are listed along the horizontal or x-axis, whereas...
Streamlines, Streaklines, and Pathlines01:18

Streamlines, Streaklines, and Pathlines

A streamline represents the trajectory that is always tangent to the fluid's velocity vector at any given point. The velocity of a fluid particle is always directed along the streamline, ensuring the particle continuously follows the streamline's path. Streamlines are particularly useful for visualizing the overall direction of flow in a fluid system, and they provide an instantaneous representation of the flow's velocity field. In steady flow, where conditions do not change over time,...
Thematic Layering in GIS01:30

Thematic Layering in GIS

In the past, planning projects such as schools or public facilities required extensive manual effort to gather and compile data. Information such as property boundaries, soil characteristics, road networks, zoning regulations, and flood zones had to be sourced individually from courthouses, utility providers, and registry offices. Assembling these datasets into a coherent format often took several months, delaying project timelines.The introduction of Geographic Information Systems (GIS)...
Design Example: Maintaining Level of an Embankment01:19

Design Example: Maintaining Level of an Embankment

Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
Scatter Plot01:15

Scatter Plot

The most common and easiest way to display the relationship between two variables, x and y, is a scatter plot. A scatter plot shows the direction of a relationship between the variables. A clear direction happens when there is either:

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Related Experiment Video

Updated: Jun 7, 2026

Visualizing Oceanographic Data to Depict Long-term Changes in Phytoplankton
08:15

Visualizing Oceanographic Data to Depict Long-term Changes in Phytoplankton

Published on: July 28, 2023

Stacking graphic elements to avoid over-plotting.

Tuan Nhon Dang1, Leland Wilkinson, Anushka Anand

  • 1Department of Computer Science, University of Illinois at Chicago, USA. tdang@cs.uic.edu

IEEE Transactions on Visualization and Computer Graphics
|October 27, 2010
PubMed
Summary
This summary is machine-generated.

Information visualization struggles with over-plotting. A new stacking technique preserves data density, overcoming limitations of area, color, or aggregation methods for better visual analysis.

Related Experiment Videos

Last Updated: Jun 7, 2026

Visualizing Oceanographic Data to Depict Long-term Changes in Phytoplankton
08:15

Visualizing Oceanographic Data to Depict Long-term Changes in Phytoplankton

Published on: July 28, 2023

Area of Science:

  • Information Visualization
  • Data Analysis
  • Human-Computer Interaction

Background:

  • Over-plotting is a persistent challenge in information visualization, limiting the effective use of display space.
  • Current methods like bubble plots, treemaps, heatmaps, and histograms use area, color, or aggregation to represent data density, but have perceptual and interaction limitations.

Purpose of the Study:

  • To introduce a novel technique for visualizing and interacting with datasets that addresses over-plotting by stacking overlapping cases.
  • To preserve local data density information effectively in visualizations.

Main Methods:

  • Developed a stacking paradigm to visualize overlapping data points, lines, or other geometric elements.
  • Applied the stacking technique to real-world datasets.
  • Compared the new stacking method against existing over-plotting solutions in high-dimensional displays.

Main Results:

  • The stacking technique effectively preserves density information, overcoming limitations of traditional methods.
  • Demonstrated successful applications across various data types (points, lines).
  • Showcased improved visualization and interaction capabilities compared to existing solutions.

Conclusions:

  • The stacking paradigm offers a viable new approach to managing over-plotting in information visualization.
  • This method enhances the ability to perceive local data density and interact with individual data cases.