The <File> menu is for input and output operations. Here you can load, store and insert data, put data via mouse in, load and store graphs, load and store SimplexNumerica’s evaluations and template files. You can print out your results on paper or metafile and bitmaps.

• Load SampleData
  
• Save SampleData
  
• Insert SampleData
  
• Select with Mouse
  
• Pulldown-menu Edit
  
• Dimensions
  

Loads a data file from disk. All formats, which you can store in SimplexNumerica are recognized automatically while the loading of the file. There are several variants added, all formats got a header line placed in front. The old file formats of SimplexNumerica 4 can be naturally further read. Special formats, e.g. CSV can be loaded.

Saves a data file on disk. SampleData has the default Extension `*.DAT '. The Extension is attached to the file names when storing the data. If you put in another Extension, then this is accepted.

The header consists of the legend labelling text and the comment. Both, legend text (e.g. version) and comment can be edited in a dialogbox. Data can be stored in different file formats. In addition please click on the Combobox or in the describing text Button of the momentarily indicated format. The data can be stored as ASCII or binary format. In association with the ArrayEditor it makes sense to store the data in tabular form.

The difference between the table format and the other formats consists of the fact that with the table you can store selected columns instead only the actual data graph record. This is independent of the mode (EvaluationMode/TestMode). With the other formats in each case the current x/y data array is stored. The current array is always available in the TestMode.

Here an explanation of the formats:

A headline is in front posed to all formats, which identifies the format exactly.

Hint: 

There is the possibility of editing the simplex header indirectly. The header is the same as the labelling legend shows. 

If one stores the SampleData, then the legend is already registered as comment in the dialogbox and can be edited there.

Structure of the Combobox in the save dialogbox:

[ SimplexNumerica ] < x/y > < ASCII with headers >

[ SimplexNumerica ] < x/y/z > < ASCII with headers >

[ SimplexNumerica ] < x/y > < ASCII without headers >

[ SimplexNumerica ] < x/y/z > < ASCII without headers >

[ SimplexNumerica ] < x/y > < binary with headers >

[ SimplexNumerica ] < x/y/z > < binary with headers >

[ SimplexNumerica ] < x/y > < binary without headers >

[ SimplexNumerica ] < x/y/z > < binary without headers >

[ x(CR)y ] < without headers >

[ to BEGIN x y (CR) END ] < without headers >

[ x/y (CR) ] < without headers >

[ table ] < ', '-separation >

[ table ] < ' TAB' separation >

You can produce data with these headers in your own program and represent these afterwards in SimplexNumerica, or vice versa.

Here the data are loaded e.g. at the beginning or the end of the measured value array.

The number of reloadable measured values depends naturally on the storage location for the measured value array. If the storage location is not sufficient, then you get an error from SimplexNumerica in form of a message box.

Put in new measuring points with the help of a hair cross. With the left mouse button the points are set, and with the right mouse button the action will be cancelled.

You can also insert and delete points with the mouse.

Load CurveData

Load CurveData similar to the SampleData. 

Save CurveData

Save CurveData similar to the SampleData. 

Load Evaluation

Loads a new evaluation in place of the momentarily existing one and represents it afterwards. You do not have to be in the EvaluationMode, it will automatically switch to it.

To an evaluation belongs both the SampleData and CurveData additional arrays and the properties (like markers, inscriptions etc.) and many other entries.

The file Extension is `*.D2D ' and this is also adjusted as default. In addition, you can indicate a Extension of your own choice. The first D stands for Data, the two other indications of 2D (two-dimensional). Similar to it the 3D-Evaluation has the Extension ` * D3D'.

SimplexNumerica has a universal path indicator, which works separately for each Extension. This has the advantage that you do not have to go always through your directories to look for a file, SimplexNumerica noted the path.

Save Evaluation

An evaluation is exactly that what you will see on the screen. To an evaluation belongs e.g. also the Vector diagram. In order to store an evaluation, you must be in the EvaluationMode. 

Different graphs and measuring data can be drawn in the EvaluationMode into a chart or coordinate system. Each time, if you produce a new curve, accompanying dialogbox appears (see also Pulldown-menu Edit menu option EvaluationMode).

Regarding object-oriented representation of the evaluations the data and parameter are to be stored in a Record. Individual record fields contain e.g. also the line type, heading etc.

Save Metafile

First please indicate the appropriate file names for the Metafile in the Fileselectbox. After that, put in the framework dimensions and the resolution in the following dialogbox. The DPI number used by the program corresponds to the momentary screen resolution.

With CurveData Clipping you can cut the curve by Windows Region functions.

If the printer output of a SimplexNumerica’s Metafile in external application does not correspond to the expenditure quality, then this is due to the expressions in that application and not because of SimplexNumerica. If you import the SimplexNumerica Metafile e.g. into the Microsoft Publisher, so you will get the best quality.

Quit Program

An alert box will ask you to left for the program. You can also terminate the program, by clicking the Close Button of the 2D-Window. 

If you don’t have stored your evaluation before you quit the program, then it will be your problem.

The Pulldown-menu <Edit> turns around the charts properties, appearance and configuration. You can adjust e.g. how the coordinate system or the decimal points have to look like. 

SimplexNumerica has different coordinate systems from the physically technical area.  With the mathematical system the origin moves dependent on the input measuring points. With the physical system the x-coordinate and ordinate scaling are underneath and left from the system, whereby with the mathematical system these move relative to the origin.  A further coordinate system is the logarithmic system, in which the measured values can be represented logarithmically.  The mathematical, the physical and the logarithmic systems x-log/y-logs, x-lin/y-logs and x-logs / y-lin are Cartesian systems.  Another type of the mathematical coordinate system is the polar coordinates system.  The Smith diagram is used e.g. in electro-technology with centric technique.  Triplots are used in biology and chemistry for three component systems.  You can find Contour plots drawn in almost on each map.

With help of control plus single-click into the inside of the coordinate system (see above) one can determine the place and the dimensions of the coordinate systems. In this way a coordinate system can be arranged on the display.  Additionally the possibility exists of setting and re-setting several axes.  In addition the Pulldown-menus around the Axes shows several possibilities.

The administration of the two modes TestMode and EvaluationMode can be done with the Memory Record dialog.

Properties

The properties concern to the charts or coordinate systems. They are different in terms of the chart. For the physical coordinate system the following dialogbox appears:

The basic properties refer to the scaling at the coordinate system. The Tickmark length is the length of the lines in points. For the line colour and scale font a separate dialogbox is called. These correspond to the standard Windows Dialogbox. 

The auto scaling of the axis can be done with minimum/maxima scale or with a special SimplexNumerica optimized Scaling, called AutoScale. With minimum/maxima only the interval is computed, thus the value of x_min and x_max are places. The AutoScale routine finds still ideal values (e.g. whole numbers) in addition. The AutoScale routine works very effectively and can remain in most cases switched on. A manual organization is more meaningful only sometimes. The above properties affect also the axes partitioning (dx and dy). 

The parameter <Expand> causes the relative expansion of the coordinate system. If one draws e.g. a sine wave, then mountain and valley can knock against the coordinate system edge. The expanding factor avoids this unpleasant effect. A Expand factor of e.g. 10 % means that the coordinate system is expanded to the left and right and/or upward and down around 5 %. To the axes the following relationship applies: 

x ₁  = x ₁  - z _x

and

x ₂  = x ₂  + z _x

y ₁  = y ₁  z _y

and

y ₂  = y ₂  + z _y

with

z _x  = expand/100 * (x ₂  - x ₁)/2

Number Format

This dialogbox shows you the number format of the coordinate systems text scaling.

First, select the right axis for the specified format.

In this case the 2D x-Axis on the bottom. The format in the dialog is Date & Time. You can change more than one axis when you push the <Apply> button afterwards.

The following formats are available:

<Automatic Decimal Places> sets the <Decimal Places> automatically via program. If you don’t like that, then unhook the checkbox and set the value for the right axis manually.

The date format can be changed with the help of the right Combobox.

The button <Apply> applies the setup without to leave the dialog.

The <Exponent> is for the number of places behind the <E> (e.g. 123.4E02).

The Power of ten can be shown either e.g. as 123.4E02 or 123.4 10², respectively.

The <Decimal Separation Character> can be set to <Comma> or <Point> (Dot).

Configuration

The configuration depends on the utilized coordinate system or chart. For the physical coordinate system the following dialogbox is used:

The common settings refer to the framework of the coordinate system. The frame content can be filled with different colour styles either as normal background, picture or Dithering colour. The button <Background Picture> brings up the following dialogbox:

Here you can put in the path for the picture bitmap. Afterwards the bitmap can be adjusted to the Coordinate System size or vice versa.

Next table explains shortly the <Common Settings> of each one:

<Distance from Tick-Marks>: means the gap between Tick-Mark and Scaling Text in x/y-directions.

<Outline> Colour for the outline rectangle.

Set new with Mouse

Here you can set new dimension from ground up for the available chart on the screen. Move the hair cross to the right place. Click once. Draw with the rubber band the outline of the chart and click to fix it.

Change with left mouse

To select an object on the screen hold down the control key and click with the left mouse button on it. Let the control key up. Then change the size or move it around the screen. This common method will be used also in general for other objects.

Outline Metrics

Call of the following dialogbox for the direct numeric input of the dimensions in mm units.

For the Cartesian coordinate systems comes up:

The Smith diagram e.g. will show this one:

The x and y-center points are the positions of the center of the circle. The radius is the radius of the outside circle, thus not the edge circles. The edge circles are dimensioned now in per cent relative to this outside circle, whereby the radius of this circle corresponds to hundred percent. Also the text positions can be accordingly specified.

Scaling Factor

The chart scaling factor is the yardstick for a coordinate system or chart. An x-factor of two means double width and e.g. a y-factor of 0.5 half height.

Grid

The most common display unit in statistics visualisation is a two dimensional ScatterPlot. Simple grid lines are drawn for enhancement of pattern perception, not for plotting accuracy. Grids are drawn in equal intervals instead of numerical values. These reference lines are particularly powerful when we need to do scanning and matching of a matrix of ScatterPlots.

Grid lines are separated in some coordinate systems into rough and fine grid. The grid e.g. in the Smith diagram also depends on their properties and the axes type. 

Switching off and on the grid is also possible for both axes with control key < Ctrl + C > and of course with the popup menu <Switch on>.