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Map Filtering
I am using a map to display some data. I would like to be able to filter the data (for example, by state), and have the image effectively zoom to only view the map section which holds the filtered data.
I am able to get close to this, by setting the option "Always show entire image to false". However, the image appears to always include the bottom left corner in the view. Therefore, if I filter values in the upper right corner, the rest of the map is shown, even though there is no information in it. When I filter to only include data in the lower left corner, the map zooms to that data as I would expect it to.
Additionally, there appears to be some dependence on the zero axis of the map coordinate system. I am able to kludge it by transposing my coordinates so that the zero axis is toward the center of the map. Are there any better ways to address this?
Thanks!
Devon
Comments
One possibility is that you may have NULL values in your data. By default, NULLs are plotted as if they were 0.
You can change this by:
- right-click the field on the shelf, select Format
- change tabs to "Pane"
- at the bottom there is a section for Special Values
- Change the pull-down menu for "Marks" to "Hide"
You may need to do this for both your X-axis and Y-axis fields.