Présentation

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GrafiCalc offers a collection of facilities that have been significantly enhanced over a period of five years to incorporate latest computing technology and valuable inputs from thousands of users and educators.

Following are GrafiCalc specifications.

User sensitive features

• Automatic unit checking and conversion
• Continuous discrete prompts for tools and commands
• Double precision floating point accuracy – accurate to ten decimal places
• Mouse controlled automatic constraint inference capability
• Multiple documentation interface for simultaneous display of multiple worksheets
• Multiple level user definable (up to 1000 steps) Undo/Redo capability
• On-line help and tips
• Sketch mode for creating printable drawings
• Windows standard graphical user interface
• Work with inch and metric units, as well as user defined unit system

Intelligent sketching tools

GrafiCalc includes a geometry behavior editor incorporating an ultra-fast constraint manager especially tailored for function modeling.  The powerful point and click constraint manager can resolve virtually unlimited number of circularities.  It tracks original design intents to automatically resolve plural solutions.  Initial geometry can be entered within GrafiCalc as well as imported from any DXF compliant CAD software using the built-in 2-way automatic translator.

Geometry definition tools: Line, Circle, Arc, Poly Line, Closed Boundary.  Initial geometry can also be imported from any DXF compliant CAD software.

Constraint tools: Free point, Concentric, Centroid, Endpoint, Proportional, Tangent, Intersection, Virtual Intersection, On-Entity/Slider, Parallel, Perpendicular, and at a fixed angle with respect to another line.

Automatic Constraint inferring facility: GrafiCalc 2007 includes an automatic constraint inference facility which, when turned on, allows you to snap automatically to center, endpoints, tangents, centroid, and on-geometry automatically.  Lines snap automatically to horizontal and vertical.

Text tool: Allows entering notes and annotations.  Use all available fonts in your computer.

View manipulation tools: Pan, Zoom, Zoom by 2X, Zoom by .5X, Zoom to fit, Show paper boundary.

Automatic calculations facilities

Formula Bar: GrafiCalc incorporates a "point and click" Excel type Formula bar that is used to establish bi-directional association between geometry, dimension, values, and calculations.

Several commonly used built-in functions are context sensitive and are automatically inserted in the Formula bar by simply pointing and clicking on the appropriate geometry, dimension, or input value cells.  You can also link the Formula bar to an Excel spreadsheet using the built-in 2-way dynamic data exchange facility.

"Smart" built-in functions

GrafiCalc includes a library of over 100 built-in functions to setup Algebraic, Mathematical, Trigonometric, Statistical, Logical and Control calculations in the Formula bar - simply by pointing and clicking on geometry, dimensions, and values in the worksheet.

Following categories of built-in functions are included:

• Binary Operators
• Control Functions including If and Else
• Geometry Access Functions
• Mathematical Functions
• Point and vector Functions
• Postfix Operators
• Statistical Functions
• Textual Components
• Trigonometric Functions

Often needed values such as area, moments of inertia, perimeter, centroid, section modulii, products of inertia, distance of neutral axis, radius of gyration, are calculated with a single mouse click.

Automatic measurements

GrafiCalc incorporates linear, radial, and angular dimensions that can be constrained to measure any aspect of the flexible model.  The measurements are updated automatically as design intents are altered.  The measurements can be directly included in calculations setup in GrafiCalc's Formula bar.

In several situations, GrafiCalc measurements allow you to simply “sketch and solve” complex design challenges without writing a single equation.

Automatic backsolving (Goalseek)

GrafiCalc allows users to stipulated any measured or calculated value as design target and then have the computer Goal Seek the characteristics of any geometry that participates in the result until the actual value of the measurement or the calculated value is equal to the stipulated target value.

Input Output

• GrafiCalc includes a built-in 2-way DXF translator
• You can print a drawing directly from GrafiCalc
• You can cut, copy, and paste information from GrafiCalc to Windows clipboard.
• You can cut, copy, and paste information from Windows clipboard into GrafiCalc
• GrafiCalc supports Windows standard Dynamic data exchange (DDE)

System and disk requirements

Personal computer running Windows 9X, 2000, NT, and XP.

<2 MB

If you can sketch it ? GrafiCalc can solve it!

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