Human Geometry Mac OS

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Data Entry

Whether using a keyboard, mouse, trackpad, or your voice, inputting information can be a tedious and sometimes error-prone process. When an app asks for lots of input before doing anything useful, people can get discouraged quickly.

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Human Geometry Mac OS

Let people make choices whenever possible. Consider using a table, pop-up button, or set of radio buttons instead of a text field. The ability to choose from a list of predefined options rather than type a response makes data entry quicker and more efficient.

Simplify navigation of value lists. In controls like tables and pop-up buttons, make it easy to locate a specific value. Consider sorting values alphabetically or in another logical manner that facilitates speedy scanning and selection.

Use an introductory label or placeholder text to help communicate purpose. A label helps users understand what type of information they should enter. A text field can also contain placeholder text—such as Email or Password—when there's no other text in the field. A label is often unnecessary when placeholder text is present. Generally, labels should use title-style capitalization and end with a colon, while placeholder text should use sentence-style capitalization and no punctuation. For related guidance, see Labels.

Adjust text field line breaks accordingly. By default, any text extending beyond the bounds of a text field is clipped. A text field, however, can be set to wrap text to a new line at the character or word level, or to be truncated (indicated by an ellipsis) at the beginning, middle, or end.

Consider using an expansion tooltip to show the full version of clipped or truncated text. An expansion tooltip behaves like a help tag and appears when the user places the pointer over the field.

Use secure text fields when appropriate. Always use a secure text field when your app asks for sensitive data, such as a password.

Let the user adjust text attributes if it makes sense. If your text field contains styled text, it may add value if the user can adjust the font, size, and color of the text.

Prepopulating Data

Get information from the system whenever possible. Don't force people to provide information that can be gathered automatically or with the user's permission, like contact or calendar information.

Provide reasonable default values. To the extent possible, prefill fields with the most likely values. Providing good defaults minimizes decision making and speeds up data entry.Whenever possible, use autocomplete to offer suggestions as the user types. Autocomplete uses any text the user has entered so far to provide one or more suggested entries. The user can accept a suggestion or continue typing. Suggestions continue to be refined as more typing occurs.

Human Geometry Mac Os Catalina

Never prepopulate a password field. For security, the user should be asked to enter their password, use Touch ID, or authenticate using a keychain. For related guidance, see Authentication.

Ensure the accuracy of data populated by your app. People appreciate the convenience of having some information supplied for them, as long as it's correct. If you can't guarantee the accuracy of the information you provide, it's better to leave fields empty.

Validating Data

Require field values only when necessary. Use required fields only for information that is truly necessary to proceed.

Human Geometry Mac Os Download

Defer showing a required indicator next to a required field until the user tries to proceed without entering a value. Preemptively displaying an asterisk or a custom icon next to each required text field and selection control can make your interface appear cluttered and unappealing. Assume people know what they're doing and will enter all required values. If they forget one, show an indicator next to the forgotten field when they try to exit the current context.

Dynamically validate field values. It's frustrating when you have to go back and correct mistakes after filling out a lengthy form. Whenever possible, check field values immediately after entry so users can correct them right away.

Perform appropriate field validation. Let the user know if they've entered an invalid value. If the only legitimate value for a field is a string of digits, for example, your app should alert the user if they've entered characters other than digits. In most cases, the appropriate time to check the data is when the user clicks outside the field or presses the Return, Enter, or Tab key.

Use a number formatter to aid with numeric data entry. A number formatter automatically configures the text field to accept only numeric values. It can also be set to display the value in a specific way, such as with a certain number of decimal places, as a percentage, or as currency.

Enable advancement only after collecting required values. Before enabling a Next or Continue button, make sure all required fields have values. The enabled button provides a visual cue that it's OK to proceed.

(Redirected from The Geometry Center)

The Geometry Center was a mathematics research and education center at the University of Minnesota. It was established by the National Science Foundation in the late 1980s and closed in 1998. The focus of the Center's work was the use of computer graphics and visualization for research and education in pure mathematics and geometry.[1]

The Center's founding director was Al Marden. Richard McGehee directed the Center during its final years. The Center's governing board was chaired by David P. Dobkin.[1]

Geomview[edit]

Much of the work done at the Center was for the development of Geomview, a three-dimensional interactive geometry program. This focused on mathematical visualization with options to allow hyperbolic space to be visualised. It was originally written for Silicon Graphics workstations, and has been ported to run on Linux systems; it is available for installation in most Linux distributions through the package management system. Geomview can run under Windows using Cygwin and under Mac OS X. Geomview has a web site at www.geomview.org.

Geomview is built on the Object Oriented Graphics Library (OOGL). The displayed scene and the attributes of the objects in it may be manipulated by the graphical command language (GCL) of Geomview. Geomview may be set as a default 3-D viewer for Mathematica.[2]

Geomview source is available at www.sourceforge.net, which also has a required Motif download. For Mac OS X users, www.macports.org provides a direct route to download and compile geomview.

Videos[edit]

Geomview was used in the construction of several mathematical movies including:

  • Not Knot, exploring hyperbolic space rendering of knot complements. [1]
  • Outside In, an award-winning movie about sphere eversion. [2]
  • The shape of space, exploring possible three dimensional spaces. [3]

Other software[edit]

Versions

Let people make choices whenever possible. Consider using a table, pop-up button, or set of radio buttons instead of a text field. The ability to choose from a list of predefined options rather than type a response makes data entry quicker and more efficient.

Simplify navigation of value lists. In controls like tables and pop-up buttons, make it easy to locate a specific value. Consider sorting values alphabetically or in another logical manner that facilitates speedy scanning and selection.

Use an introductory label or placeholder text to help communicate purpose. A label helps users understand what type of information they should enter. A text field can also contain placeholder text—such as Email or Password—when there's no other text in the field. A label is often unnecessary when placeholder text is present. Generally, labels should use title-style capitalization and end with a colon, while placeholder text should use sentence-style capitalization and no punctuation. For related guidance, see Labels.

Adjust text field line breaks accordingly. By default, any text extending beyond the bounds of a text field is clipped. A text field, however, can be set to wrap text to a new line at the character or word level, or to be truncated (indicated by an ellipsis) at the beginning, middle, or end.

Consider using an expansion tooltip to show the full version of clipped or truncated text. An expansion tooltip behaves like a help tag and appears when the user places the pointer over the field.

Use secure text fields when appropriate. Always use a secure text field when your app asks for sensitive data, such as a password.

Let the user adjust text attributes if it makes sense. If your text field contains styled text, it may add value if the user can adjust the font, size, and color of the text.

Prepopulating Data

Get information from the system whenever possible. Don't force people to provide information that can be gathered automatically or with the user's permission, like contact or calendar information.

Provide reasonable default values. To the extent possible, prefill fields with the most likely values. Providing good defaults minimizes decision making and speeds up data entry.Whenever possible, use autocomplete to offer suggestions as the user types. Autocomplete uses any text the user has entered so far to provide one or more suggested entries. The user can accept a suggestion or continue typing. Suggestions continue to be refined as more typing occurs.

Human Geometry Mac Os Catalina

Never prepopulate a password field. For security, the user should be asked to enter their password, use Touch ID, or authenticate using a keychain. For related guidance, see Authentication.

Ensure the accuracy of data populated by your app. People appreciate the convenience of having some information supplied for them, as long as it's correct. If you can't guarantee the accuracy of the information you provide, it's better to leave fields empty.

Validating Data

Require field values only when necessary. Use required fields only for information that is truly necessary to proceed.

Human Geometry Mac Os Download

Defer showing a required indicator next to a required field until the user tries to proceed without entering a value. Preemptively displaying an asterisk or a custom icon next to each required text field and selection control can make your interface appear cluttered and unappealing. Assume people know what they're doing and will enter all required values. If they forget one, show an indicator next to the forgotten field when they try to exit the current context.

Dynamically validate field values. It's frustrating when you have to go back and correct mistakes after filling out a lengthy form. Whenever possible, check field values immediately after entry so users can correct them right away.

Perform appropriate field validation. Let the user know if they've entered an invalid value. If the only legitimate value for a field is a string of digits, for example, your app should alert the user if they've entered characters other than digits. In most cases, the appropriate time to check the data is when the user clicks outside the field or presses the Return, Enter, or Tab key.

Use a number formatter to aid with numeric data entry. A number formatter automatically configures the text field to accept only numeric values. It can also be set to display the value in a specific way, such as with a certain number of decimal places, as a percentage, or as currency.

Enable advancement only after collecting required values. Before enabling a Next or Continue button, make sure all required fields have values. The enabled button provides a visual cue that it's OK to proceed.

(Redirected from The Geometry Center)

The Geometry Center was a mathematics research and education center at the University of Minnesota. It was established by the National Science Foundation in the late 1980s and closed in 1998. The focus of the Center's work was the use of computer graphics and visualization for research and education in pure mathematics and geometry.[1]

The Center's founding director was Al Marden. Richard McGehee directed the Center during its final years. The Center's governing board was chaired by David P. Dobkin.[1]

Geomview[edit]

Much of the work done at the Center was for the development of Geomview, a three-dimensional interactive geometry program. This focused on mathematical visualization with options to allow hyperbolic space to be visualised. It was originally written for Silicon Graphics workstations, and has been ported to run on Linux systems; it is available for installation in most Linux distributions through the package management system. Geomview can run under Windows using Cygwin and under Mac OS X. Geomview has a web site at www.geomview.org.

Geomview is built on the Object Oriented Graphics Library (OOGL). The displayed scene and the attributes of the objects in it may be manipulated by the graphical command language (GCL) of Geomview. Geomview may be set as a default 3-D viewer for Mathematica.[2]

Geomview source is available at www.sourceforge.net, which also has a required Motif download. For Mac OS X users, www.macports.org provides a direct route to download and compile geomview.

Videos[edit]

Geomview was used in the construction of several mathematical movies including:

  • Not Knot, exploring hyperbolic space rendering of knot complements. [1]
  • Outside In, an award-winning movie about sphere eversion. [2]
  • The shape of space, exploring possible three dimensional spaces. [3]

Other software[edit]

Other programs developed at the Center included:

  • WebEQ, a web browserplugin allowing mathematical equations to be viewed and edited. [4]
  • Kali, to explore plane symmetry groups. [5]
  • The Orrery, a Solar system visualizer. [6]
  • SaVi, a satellite visualisation tool for examining the orbits and coverage of satellite constellations. [7]
  • Crafter, for structural design of spacecraft. [8]
  • Surface Evolver, to explore minimal surfaces. [9][10]
  • SnapPea, a hyperbolic 3-manifold analyzer. [11]
  • qhull, to explore convex hulls. [12]
  • KaleidoTile, to explore tessellations of the sphere, Euclidean plane, and hyperbolic plane. [13]

Website[edit]

Richard McGehee, the center's director, has stated that the website was one of the first one hundred websites ever published.[3]Despite the Center being closed, its website is still online at [14] as an archive of a wide range of geometric topics, including:

  • Geometry and the Imagination handouts for a two-week course by John Horton Conway, William Thurston and others. [15]
  • Science U, a collection of interactive exhibits. [16]
  • The Geometry Forum, an electronic community focused on geometry and math education. [17]
  • Preprints, 99 preprints from the center. [18]
  • The Topological Zoo, a collection of curves and surfaces. [19]

Geomview is supported through the dedicated Geomview website.

Support for software developed at the Geometry Center is available through Geometry Technologies.

Research[edit]

During its time of operation, a large number of mathematical workshops were held at the Center. Many well-known mathematicians visited the Center, including Eugenio Calabi, John Horton Conway, Donald E. Knuth, David Mumford, William Thurston, and Jeff Weeks. There were over thirty postdocs, apprentices and graduate students.

References[edit]

  1. ^ ab'Post-mortem on the Geometry Center' Math in the Media (AMS)
  2. ^'Geomview, Linux Journal, March 1, 1996
  3. ^*Mervis, Jeffrey (26 July 2002), 'The Geometry Center, 1991-1998. RIP.', Science, 297 (5581), p. 508, doi:10.1126/science.297.5581.508, PMID12142514, retrieved January 5, 2008

Coordinates: 44°58′25″N93°14′02″W / 44.973606°N 93.233844°W

Retrieved from 'https://en.wikipedia.org/w/index.php?title=Geometry_Center&oldid=1020378830'




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