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Degree-Extent Strip for Visuals Messages in this topic - RSS

Fritz Jooste
Fritz Jooste
Administrator
Posts: 6


3/31/2020
Fritz Jooste
Fritz Jooste
Administrator
Posts: 6
The Degree-Extent strip is designed to plot visual data collected in a Degree and Extent format. Degree and Extent Data can also be plotted in a bar chart format. See this post for details

The Degree-Extent will represent your data by colouring a representative length of each assessment area with the appropriate colour. In the example below, we show Degree = 1 (colour blue) and Extent = 1, mapped to 5% length for the area from 1000 m to 1100 m. Similarly, in the area from 1200 m to 1300 m, we used a Degree = 3 (colour yellow), and Extent 3 (mapped to 30% area). So the idea is that the colours plotted in an area give you a visual idea of the extent of the distress.




Below is an example of how you need to define a Degree-Extent strip in your Stripmap Setup file. The figure below highlights the most important properties that need to be defined for a Degree-Extent strip. For all the other properties, please use the values shown in this example, even though these properties are not explicitly used by the Degree-Extent strip.


Note that the value you supply for the "Decimals" property is used as the Random seed value to randomly position bars over the specified extent. If you do not like the random way the bars are placed, you can try using another value in the Decimals property field. Keeping this value fixed will ensure your plot looks the same every time, unless you change the value in the Decimals field.

You will also note that for the example above, we are retrieving our data from the "Visuals" sheet (you can use any name you want). Also, we are retrieving our Degree ratings from the column "Croc_D" and we get the Extent (%) rating from the "Croc_Perc" column. The figure below shows how your data will typically be defined for this strip type. Note that we are using Excel's VLOOKUP function to convert Extent RATINGS (values typically 1 to 5) to Extent Percentages. For your strip, you need to point to the column that holds the Extent Percentage, and not to the Extent Rating.




To specify the colour ratings for various Degree ratings, you can define and then use an Interpretation Range such as shown below:



Finally, below is an example of a finalized stripmap that includes a Degree-Extent strip at the bottom. You can download the template that was used to create this strip by clicking on the attachments link at the bottom of this post.


edited by Fritz Jooste on 3/31/2020
edited by Fritz Jooste on 3/31/2020
edited by on 9/15/2020
edited by on 11/20/2020
edited by on 11/20/2020
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