Ternary triangular plot phase diagrams


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Introduction

In chemistry Ternary Diagrams are used for depicting chemical compositions - phase diagrams. These diagrams are three-dimensional but is illustrated in two-dimensions for ease of drawing and interpretation. In ternary diagrams the relative percentage (normally weight %) of three components are represented by A, B and C. The only requirement is that the three components have to sum to 100%. If they don't, you have to normalize them to 100%



Fig. Ternary Plot

Ternary phase diagram



Data Entry

Both symbol and text can be inserted in CHEMIX ternary diagrams. A and B can only be inserted as % (e.g.0-100). Text fragments in which may follow the numbers A and B must only partly contain numbers e.g. 10 10 L1 where L1 is the text fragment.

Data Entry Commands: There are seven commands that can be inserted in the end of each text string, these are:
[sf] = small font
[bf] = big font
[-s] = hide symbol
[-t] = hide text
[ih] = ignore hide (will ignore a "global" check box hide if  HideText/Symbols- has been selected).
[il] = ignore limits - This is a way to put text or/and symbols outside the triangular frame.
[_???]  = Angled text in degrees e.g. [_180]    (180 deg).

Examples:
20 50 Comment[-t]               Symbol only (no text)
30 40 Text Only[-s]               Text only (no symbol)
20 50 Text Only[sf]               Small Font
30 30 Text Only[bf]               Big Font
40 40 Big Text Only[-s][bf]   Big Font (no symbol)
20 50 Comment[-t]                Symbol only (no text)
40 40 Text Only[-s][-t]         Absolutely nothing (no symbol and no text)
20 15 Text Only [-s][ih]         View the text (Text Only) even if Hide - Text (check box) has been  selected
10 10 [180]degrees text[_180][-s]    180 degrees text (no symbol)
-5 -5 Text outside frame[il][-s]         Text outside triangular frame (no symbol)     


Text Insertion: Insert two numbers (A and B normally weight %) and text representing a phase (e.g. L1) separated by spaces. Because L1 is not a number it will be identified as text in which always must be placed after the two numbers A and B e.g. 20 35 L1 (A=20% , B=35% Text=L1).
Negative numbers are not allowed. C will be calculated as C=100%-A-B. The sum (A+B) must not exceed 100%.

Identify a number as text: A number can be identified as text if it is enclosed in square brackets.

SAMPLES:
20 20 number [10][sf] --> number 10 (small font)
25 25 number[11]       --> number 11 (normal font)
30 30 number [12][bf] --> number 12 (big font)


Calculate: After inserting or changing the content in the A(%) B(%) Text-field, you have to re-calculate

Normalization: This is a way to convert e.g. A  B  C   into  A%  B%. Before normalization make sure that data has been inserted in A B C format. Normalization will change inserted A B C values into A and B percent values.

SAMPLE Normalization: Converting 4 points in A B C format into A% B% format

 A       B       C
_____________
2.3    9.1    7.3
4.1    6.0    3.11
8.2    7.5    1.3
1.4    4.6    3.2

As we see below these values will be converted into A% B% format:

  A%       B%
_____________
12.30    48.66
31.04    45.42
48.24    44.12
15.22    50.00

Legend

There are three options regarding the graphical content of a legend box. These are: 1) Symbol 2) Symbol + Line and 3) Line.

Spline mode and Fill mode

Spline mode

Splines: By selecting spline mode you will be able to create splines. Spline points may be created interactively by clicking the mouse pointer (cross) within the triangular/frame area (making small rectangles). First and last point may be connected by selecting connect. You may move spline points by hand. Simply locate the mouse pointer within a small rectangular area, click the left mouse button and move the mouse pointer/rectangle. Spline points may be removed by clicking the right mouse button with the mouse pointer located within a rectangular area. A thick lined rectangle/(spline point) indicates that the spline point belongs to current selected set of spline points (1 spline 2 spline). Also, every set of spline points has a number located on the right side of the first created spline point . This number is the spline set number. 30 independent sets of splines each containing up to 50 spline points may be selected/created from the splines - drop down selection box.

Spline options

Thin spline: Thin spline if checked. Thick spline if unchecked.

Connect : Connect first and last point.

Delete :  Removes all spline points for current selected set of spline points. 

1 spline 2 spline ... :  Sets of spline points. Select one of these from the drop down selection box. Spline sets that are in use has IU (In Use) located on the right side ( 1 spline  IU     2 spline  IU ...)

Black, Red , Green ... : Select spline color.

Fill mode

Fill mode enables you to insert fill points. First select a color from the drop down selection box. Insert a fill point by clicking left mouse button inside the frame. Fill points can be moved around inside the frame using left mouse button. You can remove fill points (cross) by locating the mouse cross inside a fill-point and right-click it. You can also remove a fill point by the Delete push button.  

Fill options

1 fill 2 fill... :  Select one of these (Note: Fill points that are in use has IU (In Use) located on the right side.

Black, Red , Green ... : Select fill color.

Legend box

Place the mouse cursor over the legend box an click left mouse button. Keep holding left mouse button down and move the box  around. Note: The legend box can not be seen before text has been inserted in the legend text field.

Check boxes - Global selections

Symbols : Uncheck to hide all symbols (Note: It will not hide symbols for entries containing a [ih] (ignore hide) command).

Text : Check to view all text (Note: It will not hide text in entries containing a [ih] (ignore hide) command).

Legend: Check to view legend box.

Spline rectangles : Check to view all spline rectangles.

Splines : Check to view all splines.

Fill colors : Check to view all fill colors.

Scale : Check to view scale numbers.

Grid : Check to view grid.

Dot : Check to select a dotted line grid - Uncheck to select a solid line grid.

Frame : Check to view frame.

Copy to Clipboard : By clicking the "copy to clipboard" push button (two triangles) located bottom right, the image will be copied to the clipboard. The image can thereafter be used by other applications (word processors etc.) that has the paste option.

Print : Send image to printer (printer image on push button).

How to change print quality and bitmap size

It is possible to change print quality and "copy to clipboard" bitmap size. Simply go to "Setup" and select print quality and bitmap size by checking/unchecking proper check boxes.


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