This item pops up a window that allows you to set plot attributes for contour plots. If you select a contour plot from the Active plots list in the MeshTV Main window, then attributes you change and apply will be applied to the selected plot. Unselected contour plots will not be changed. If you select this item without selecting a contour plot first, you will have to select a contour plot before you can apply the changes. Note that if you make any changes and then select a contour plot, you will lose your changes since the window will update with attributes from the selected plot.
You can modify the default settings for attributes of future plots by opening this window, making your changes, and then pressing the Make default button. This affects only future plots, not existing ones, and stays in effect only for the remainder of the current MeshTV session unless you also select Save settings from the File menu.
The
Contour plot attributes
window looks like
Contour plot attributes
, if you are using MeshTV's defaults. If you aren't, the values might be different.
This window allows you to set the attributes assigned to existing or future contour plots. The attributes include things like contour color and whether a legend should be plotted.
If you don't see a description for an item in this window, check in the Shared items section near the front of the chapter.
These color buttons display the colors for each contour. To change contour colors, click on a contour color button to activate the Palette editor . Selecting a new color for a contour in the Palette editor will update the contour color in this window. The number displayed on a contour color button represents the index of the color that is currently assigned to the given contour.
Be default, MeshTV constructs 10 levels into which the data fall. These levels are linearly interpolated between the data minimum and data maximum. However, you can set your own number of levels, specify the levels you want to see, or indicate percentages for the levels.
Three options exist for specifying how levels are determined. These are N levels , Levels , and Percent . N levels , the default method, allows you to specify the number of levels which will be generated, with 10 being the MeshTV default. Levels requires you to specify real numbers for the levels you want to see. Percent takes a list of percentages, like 50.5, 55, 60, and 75. Using the numbers just mentioned, the first contour would be placed at the value which is 50.5% of the way between the minimum and maximum data values. The next contour would be placed at the value which is 55 percent of the way between the minimum and maximum data values, and so forth.
The N levels and Percent selection options also allow you to select the data range between which to interpolate the levels, if you select the Limits toggle button. When the Limits toggle is on, you can specify a minimum and/or maximum value, and the interpolation algorithm will select levels based linearly between those values, though all data will be displayed.
If you want to restrict the range of data used by the contour plot to generate its levels, this is the option to use. Once you select the button, the Min and Max text fields become active, and you can enter in the range to use. You can change one or both fields.
This option is only active when the Select by option is set to either N levels or Percent .
This text field becomes active once the Limits toggle button is selected. When the field contains the string "off," the actual data minimum is used, else the contour plot uses the number entered in the text field as the minimum number for calculating where contour levels are placed. Contour levels are always placed between the minimum and maximum values.
This text field becomes active once the Limits toggle button is selected. When the field contains the string "off," the actual data maximum is used, else the contour plot uses the number entered in the text field as the maximum number for calculating where contour levels are placed. Contour levels are always placed between the minimum and maximum values.