COMSOL 6.3 - Plot Titles for Plot Groups and Plots

Plot Titles for Plot Groups and Plots

Every plot group and plot type have a section where the is selected and set. The options are (the default), (if available), , , or . An title is generated based on the type of plot or plots selected. Select to make the title display the plot group’s label. Select for no title. Select to add existing information combined with custom prefix and suffix text to the title as described below, or select to enter free text in the field, including optional evaluation of variables, include the current date and time and the filename (see Manual Plot Titles below).

Number Formats

For all title types (except ) in the plot groups’ settings, you can choose the following formats from the list:

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: Numerical values that come from the solvers are presented as-is. Numbers formatted during postprocessing use the preference setting.

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: All numbers are formatted using the specified precision that you enter in the field (default: 6). Select the checkbox if you what to display trailing zeros.

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: All numbers are formatted using engineering notation (such as 31.416E-6; it is similar to scientific notation but with the powers of ten as multiples of three) using the specified precision that you enter in the field (default: 6). Select the checkbox if you what to display trailing zeros.

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: All numbers are formatted using scientific notation (such as 3.1416E-5) using the specified precision that you enter in the field (default: 6). Select the checkbox if you what to display trailing zeros.

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: All numbers are formatted in decimal notation with a specified number of integer digits and decimals, which you enter in the field (default: 3) and field (default: 2), respectively. Unnecessary zeros are always shown. For example, with the default settings, 17.1 would be formatted as 017.10. The specified number of integer digits is not respected if the number is too large or if it is NaN or Inf. Select the checkbox to keep the width from changing for a sequence that includes both positive and negative values. Select the checkbox to keep the width from changing for a sequence that includes both real numbers and numbers with a nonzero imaginary part.

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: All numbers are formatted in scientific notation with one integer digit and a specified number of decimals and exponent digits. For example, with the default settings, 17.1 would be formatted as 1.71E1. The settings are the same as for the format, with the addition of an checkbox. Select it to keep the width from changing for a sequence that includes both positive and negative exponents.

Custom Plot Titles

Solution

These settings are only available for the main plot groups. Under , select the checkboxes as needed.

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Select to include details about the dataset used for the plot.

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Select to include information about the phase (when applicable).

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Select to include the details about the solution (the time step or parameter values, for example) for the plot (when applicable).

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Select to include the name of the MPH-file for the model that the plot belongs to.

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Select to include the current date (using a format like , for example).

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Select to include the current time (using a format like , for example).

The title includes dataset settings taken from a plot if there is exactly one dataset that is taken from a plot, and the plot group’s dataset is not used anywhere. The plot group’s dataset has precedence over the plots’ datasets.

Type and Data

Under , select the checkboxes as needed.

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Select to include the plot type in the title.

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Select to include the variable details.

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Select to include the variable expression in the title.

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Select to include the variable unit.

User

Under , enter text as needed:

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Enter text in the field to add free text at the front of any Solution title text string. For example, if all the , , and checkboxes are selected, this text is first.

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Enter text in the field to add free text at the end of any Solution title text string. For example, if all the , , and checkboxes are selected, this text is at the end of this information.

Layout

The checkbox is selected by default to display the solutions time, parameter value, or phase for the currently selected plot in the upper-left corner of the window.

Manual Plot Titles

For all manual plot titles, enter the plot title in the field. If the title is longer than the available width in the plot window, the title is automatically wrapped to another line. You can also use newline (carriage return) in the field to add new lines in the plot title. You can also use these two formatting modes for adding mathematical expressions to plot titles:

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Using LaTeX Display math mode. To do so, put \[ \] around the LaTeX mathematical expression in the field. This mode uses more vertical space for the math expression. For example, to plot the expression

add the following LaTeX text to the field: \[u+\frac{\log x^2}{4 \pi}\]

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Using LaTeX Inline math mode: To do so, put \$ \$ around the LaTeX mathematical expression in the field. This mode is meant to be included in line in the text (in normal LaTeX) and has a more compact presentation. To use the same mathematical expression as in the other mode, add the following LaTeX text to the field: \$u+\frac{\log x^2}{4 \pi}\$

See also Mathematical Symbols and Special Characters for information about available LaTeX characters.

The LaTeX formatting modes are also available for color legend titles in plots.

In the section for plot groups, you can use these additional settings for including the date, the time, the filename, or values of scalar variables, for example:

The field contains a parameter indicator, such as the time for the current plot of a time-dependent solution, which appears in the upper-left corner of the window. You can edit the indicator if desired.

You can evaluate and display values in the title and the parameter indicator. You can type, for example, eval(t,min) to evaluate the time t (in minutes). In addition to available scalar variables in the model, you can use the following variables to display date, time, filename, and so on:

Table 21-3: Variables for Plot Titles.
Variable Name	Description
FILENAME	The filename as the last part of the file path,
PATH	The full file path,
DATE	The current date, in the format Dec 8, 2016.
TIME	The current time, in the format 10:56:59 AM.
YEAR	The current year.
MONTH	The current month as a two-digit number.
DAY	The current day of the month as a two-digit number.
HOUR, HOUR24	The current hour as a two-digit number between 0 and 23.
HOUR12	The current hour as a two-digit number between 0 and 11.
AMPM	The AM/PM marker (AM or PM).
MINUTE	The current minute as a two-digit number.
SECOND	The current second as a two-digit number.

For example, use eval(DATE) to include the current date in the plot title or parameter indicator.

You can also use printf-style number format specifiers of the form %[flags][width][.precision]type as the last argument using the syntax eval(expr,unit,precision), where the unit is optional. Allowed types are {d, f, e, E, g, G}. Two examples are eval(pi,,%05d), which appears as 00003, showing the number as a rounded integer with the width of 5 and zero padding, and eval(pi*1e10,,%+.3e), which appears as +3.142e+10, a number with scientific format with 3 decimal values and with the sign of the number shown.


	Using Special Formats and Symbols in Titles