SMS:Contour Options: Difference between revisions
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{{SMS_at_a_glance_contours|Heading====At a glance===}} | {{SMS_at_a_glance_contours|Heading====At a glance===}} | ||
SMS can generate contours from a scalar [[SMS: | SMS can generate contours from a scalar [[SMS:Datasets|dataset]]. Contour display is enabled using in the [[SMS:Display Options|Display Options]] dialog. Unique contour display options can be set for each [[SMS:Modules|module]] that uses scalar data sets. Contour options can also be set for an individual data set. | ||
The module contour options can be edited by: | The module contour options can be edited by: | ||
* The menu command ''Data | Contour Options''. The data menu is available in most modules. See [[SMS:Menu_Bar#Module_Specific_Menus|Module Specific Menus]] for more information. | * The menu command ''Data | Contour Options''. The data menu is available in most modules. See [[SMS:Menu_Bar#Module_Specific_Menus|Module Specific Menus]] for more information. | ||
* Opening the [[SMS:Display Options|Display Options]] dialog | * Opening the [[SMS:Display Options|Display Options]] dialog | ||
* The Contour Options [[SMS:Macros|Macro]] [[Image:Contour Options.bmp]] | * The ''Contour Options [[SMS:Macros|Macro]]'' [[Image:Contour Options.bmp]] | ||
The | The dataset specific contour options for an individual dataset can be edited by: | ||
* Right click on the | * Right click on the dataset in the [[SMS:Project Explorer|Project Explorer]] and choose "Dataset Contour Options". This will open a dialog where you can define dataset specific contour options. If you want to go back to using the module contour options, right click on the dataset in the Project Explorer and choose ''"Clear Dataset Contour Options."'' | ||
== Data Range == | == Data Range == | ||
The name, minimum value, and maximum value for the active timestep of the | The name, minimum value, and maximum value for the active timestep of the dataset are shown. These values are sometimes useful when choosing an appropriate contour interval. | ||
A minimum and maximum contour value can be specified, restricting the contours interval which will be shown. If the range is not specified, SMS will automatically choose a range based on the minimum and maximum value for the active timestep. | A minimum and maximum contour value can be specified, restricting the contours interval which will be shown. If the range is not specified, SMS will automatically choose a range based on the minimum and maximum value for the active timestep. | ||
== Contour Interval == | == Contour Interval == | ||
The contour interval is user controlled. Options include: | The contour interval is user controlled. Options include: | ||
* Number of Contours | * ''Number of Contours'' – Specify the number of contours to use. SMS will automatically determine the value for each interval based on the specified range or data set range. | ||
* Specified Interval | * ''Specified Interval'' – Specify the interval to use for contours. SMS will automatically determine the number of contours needed based on the specified range or dataset range. | ||
* Specified Values | * ''Specified Values'' – Specify the number of contours to use and interval. | ||
The items in the upper right section of the Contour Options dialog control the display of a contour legend and the option to accentuate some of the contours. If the Show | The items in the upper right section of the ''Contour Options'' dialog control the display of a contour legend and the option to accentuate some of the contours. If the ''Show Color Legend'' option is selected, and the contours are not being displayed as a single color, a legend of colors and corresponding data set values is displayed in a corner of Graphics Window. For color filled contours, this legend is a vertical strip of colors with text labels for the contour levels. If the contours are being displayed as linear segments or cubic splines, the legend is displayed as a series of contour level values and a line drawn in the color corresponding to that level. The size, location, label and font for the legend are set using the Legend Options dialog. If the user enters the title "DS" for the legend title, the name of the current dataset is used. If the user enters "DS:TS" the current dataset and time step are used as the title. | ||
The options in the middle of the right side of the dialog control how the contours are computed and displayed. Three contouring methods are available: | The options in the middle of the right side of the dialog control how the contours are computed and displayed. Three contouring methods are available: | ||
* The default method is Normal Linear Contours and causes the contours to be displayed as piece-wise linear strings. | * The default method is ''Normal Linear Contours'' and causes the contours to be displayed as piece-wise linear strings. | ||
* If using the Color fill between contours method, the same linear contour strings are computed, but the regions between adjacent contour lines is filled with a solid color. | * If using the Color fill between contours method, the same linear contour strings are computed, but the regions between adjacent contour lines is filled with a solid color. | ||
* If using the Cubic Spline Contours method, the contours are computed in strings and drawn as cubic splines. Drawing the contours as splines can cause the contours to appear smoother. Occasionally, loops appear in the splines or the splines cross neighboring contour splines. These problems can sometimes be fixed by adding tension to the splines. A tension factor greater than zero causes the cubic spline to be blended with or converge to a linear spline based on the same set of points. A tension factor of unity causes the cubic spline to coincide with the linear spline. | * If using the Cubic Spline Contours method, the contours are computed in strings and drawn as cubic splines. Drawing the contours as splines can cause the contours to appear smoother. Occasionally, loops appear in the splines or the splines cross neighboring contour splines. These problems can sometimes be fixed by adding tension to the splines. A tension factor greater than zero causes the cubic spline to be blended with or converge to a linear spline based on the same set of points. A tension factor of unity causes the cubic spline to coincide with the linear spline. | ||
In the lower right corner of the Contour Options dialog, two buttons allow the user to specify the contour colors and the contour labeling options. | In the lower right corner of the ''Contour Options'' dialog, two buttons allow the user to specify the contour colors and the contour labeling options. | ||
==Related Topics== | ==Related Topics== | ||
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{{Template:Display Options}} | {{Template:Display Options}} | ||
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[[Category:SMS Display Options|Contour Display Options]] | [[Category:SMS Display Options|Contour Display Options]] | ||
Revision as of 16:18, 14 November 2012
At a glance
- Visualize scalar datasets
- Linear, color filled or both at the same time
- Variable level of transparency
- Full control of ranges and colors
- Precision control for labels and legends
SMS can generate contours from a scalar dataset. Contour display is enabled using in the Display Options dialog. Unique contour display options can be set for each module that uses scalar data sets. Contour options can also be set for an individual data set.
The module contour options can be edited by:
- The menu command Data | Contour Options. The data menu is available in most modules. See Module Specific Menus for more information.
- Opening the Display Options dialog
- The Contour Options Macro File:Contour Options.bmp
The dataset specific contour options for an individual dataset can be edited by:
- Right click on the dataset in the Project Explorer and choose "Dataset Contour Options". This will open a dialog where you can define dataset specific contour options. If you want to go back to using the module contour options, right click on the dataset in the Project Explorer and choose "Clear Dataset Contour Options."
Data Range
The name, minimum value, and maximum value for the active timestep of the dataset are shown. These values are sometimes useful when choosing an appropriate contour interval. A minimum and maximum contour value can be specified, restricting the contours interval which will be shown. If the range is not specified, SMS will automatically choose a range based on the minimum and maximum value for the active timestep.
Contour Interval
The contour interval is user controlled. Options include:
- Number of Contours – Specify the number of contours to use. SMS will automatically determine the value for each interval based on the specified range or data set range.
- Specified Interval – Specify the interval to use for contours. SMS will automatically determine the number of contours needed based on the specified range or dataset range.
- Specified Values – Specify the number of contours to use and interval.
The items in the upper right section of the Contour Options dialog control the display of a contour legend and the option to accentuate some of the contours. If the Show Color Legend option is selected, and the contours are not being displayed as a single color, a legend of colors and corresponding data set values is displayed in a corner of Graphics Window. For color filled contours, this legend is a vertical strip of colors with text labels for the contour levels. If the contours are being displayed as linear segments or cubic splines, the legend is displayed as a series of contour level values and a line drawn in the color corresponding to that level. The size, location, label and font for the legend are set using the Legend Options dialog. If the user enters the title "DS" for the legend title, the name of the current dataset is used. If the user enters "DS:TS" the current dataset and time step are used as the title.
The options in the middle of the right side of the dialog control how the contours are computed and displayed. Three contouring methods are available:
- The default method is Normal Linear Contours and causes the contours to be displayed as piece-wise linear strings.
- If using the Color fill between contours method, the same linear contour strings are computed, but the regions between adjacent contour lines is filled with a solid color.
- If using the Cubic Spline Contours method, the contours are computed in strings and drawn as cubic splines. Drawing the contours as splines can cause the contours to appear smoother. Occasionally, loops appear in the splines or the splines cross neighboring contour splines. These problems can sometimes be fixed by adding tension to the splines. A tension factor greater than zero causes the cubic spline to be blended with or converge to a linear spline based on the same set of points. A tension factor of unity causes the cubic spline to coincide with the linear spline.
In the lower right corner of the Contour Options dialog, two buttons allow the user to specify the contour colors and the contour labeling options.
Related Topics
SMS – Surface-water Modeling System | ||
|---|---|---|
| Modules: | 1D Grid • Cartesian Grid • Curvilinear Grid • GIS • Map • Mesh • Particle • Quadtree • Raster • Scatter • UGrid |  |
| General Models: | 3D Structure • FVCOM • Generic • PTM | |
| Coastal Models: | ADCIRC • BOUSS-2D • CGWAVE • CMS-Flow • CMS-Wave • GenCade • STWAVE • WAM | |
| Riverine/Estuarine Models: | AdH • HEC-RAS • HYDRO AS-2D • RMA2 • RMA4 • SRH-2D • TUFLOW • TUFLOW FV | |
| Aquaveo • SMS Tutorials • SMS Workflows | ||
