The Axes window permits editing of the X axis maximum, the number of tick marks on the X axis and the number of default classes displayed. X and Y axis gridlines may also be added. Edit any of the values in the fields provided.
| Example 6 |
The user wants to customise the active plot. |
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Press Axes button. |
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Axes window is opened |
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Click in required field and type in new value. |
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Click OK then Cancel when complete. |
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Plot is shown with modified features. |
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This function adds a small legend box in all plot frames showing the filename and data description of the displayed data (e.g. Element area, trajectory length etc). This function toggles the legend on and off and does not have an action window. The legend boxes may be moved around the plot area by clicking and dragging using the mouse.
| Example 7 |
The user wants to add a legend to the plot. |
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Press Legend button. |
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A Legend box appears in each plot frame containing data. |
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Determines the arrangement of the plot frames in the display window. The default arrangement is 2 x 2 plot frames. This can be changed by clicking on the appropriate square in the Arrange window then press OK.
| Example 8 |
The user wants to change the number of plot frames in the display area. |
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Press Arrange button. |
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Arrange window opens showing current arrangement of plot frames. |
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Click on a small square to produce the required arrangement (ie. for a 2 x 3 arrangement click the square at column 2, row 3) then press OK. |
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New plot frame arrangement is displayed. |
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The Options button allow you to customise the data entry into Topog_Xhistog. Click on the Options button to display the options dialog box. Options available are:
- Specify your own class limits using a Class File.
- Perform statistical calculations only on certain elements in the catchment by specifying an Underlay File.
- Save statistical calculations to a file by specifying an Output file.
- Weight each elements attribute by its area, to give Area Weighted statistics.
- Select a limited range of days to perform calculations on (in the case of a time series file)
9.5.10.1 Class File
The format of the class file is a list of values, 1 value per line, in ascending order. Enter the name of the class file in the Class File editing box, and press OK. The file in the active plot area will be re-read (this may take some time depending on file size) and will be redisplayed using the new class limits.
An example Class File is shown below.
0.25
0.5
0.75
1.0
2.0
3.0 |
9.5.10.2 Underlay File
If the data values for the file in the active plot area are such that each value corresponds to a single element in a catchment (e.g. attribute file or simulation files) then an underlay file (created using Topog_Underlay) may be specified. The underlay file specifies which elements to consider when reading in the data file, and hence a small subsection of the catchment may be analysed.
9.5.10.3 Output File
Specify the name of the output file you wish to save the data to and press OK. If the file already exists, the data will be appended to the end of the file. Only statistics and percentiles are written to the output file.
9.5.10.4 Area weighting
If the data values for the file in the active plot area are such that each value corresponds to a single element in a catchment (e.g. attribute file or simulation files) then the data values may be weighted by element area. The project name for the catchment will be assumed to be the basename of the data filename in the current plot window. E.g. if the plot area filename is brooks.wet then it will be assumed that the corresponding element attribute file will be brooks.atr. Area weighting is sometimes useful because TOPOG elements have irregular sizes, as opposed to regular grid based models which use regularly sized cells.
9.5.10.5 Day Min/Max
If the data file in the active plot area is a time series file, then a day minimum and maximum can be specified here, so that only a subset of the total data period can be scrutinised.
Produces a screen dump of the display window and writes this to a file called Dump_File. A beep will sound followed by two beeps when the file has been written. This file must then be converted to the correct format for printing or plotting (see section 14.5 on Topog_Xprint).
Quits the Topog_Xhistog session and returns to the command prompt.
