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Plot Layout

Sophisticated layouts are possible in Metview, with multiple plots on a single page as shown below:

To demonstrate the plot layout facility in Metview, let's re-create the above plotting:

  • create a new Display Window icon and edit it.
  • click on the Add new frame button to create the first frame. By default, this contains just a single plot scene which uses a Geographic View. 
  • select (left-click) this plot scene and click Expand selected frames to make it fill the whole area.
  • divide it up into three areas as follows:
    • click Split selected frames, select 2x1 in order to obtain two vertically stacked frames and click OK.
    • select (left-click) the lower frame, click Split selected frames and select 1x2.
  • give a different View to each scene:
    • drag a Cross Section View icon (either one you previously created or else a new one) into the top scene.
    • drag a Vertical Profile View icon into the bottom-left scene.
    • drag a Geographic View of your choice into the bottom-right scene.

Your Display Window editor should look like this:


  
Create a new Display Window icon and edit it.

Click on the Add new frame button to create the first frame. By default, this contains just a single plot scene which uses a Geographic View. Now select (left-click) this plot scene and click Expand selected frames to make it fill the whole area.

Now divide it up into three areas as follows. Click Split selected frames, select 2x1 in order to obtain two vertically stacked frames and click OK. Select (left-click) the lower frame, click Split selected frames and select 1x2.

Now we will give a different View to each scene. Drag a Cross Section View icon (either one you previously created or else a new one) into the top scene. Drag a Vertical Profile View icon into the bottom-left scene. Drag a Geographic View of your choice into the bottom-right scene. Your Display Window editor should look like this:

Now do the following:

  • Apply your changes and Visualise this icon.
  • drag the t_fc96.grib icon into all three of the scenes in the Display Window.
  • apply some Visdefs:
    • drag shade icon into the cross section scene.
    • drag vdline into the vertical profile scene.

Your result should look something like the plot at the start of this section.

If you look at the Frames and, more interestingly, the Layers tabs, you will see that they are linked to only one of these scenes at a time. Try using the Active scene control to change which on is used. You can also right-click on a scene and choose “Select as active scene” from the context menu.

Legend

Legends are an important part of any scientific or operational plot. If enabled, an automatic legend will be built from the data provided.

To enable a legend, parameter Legend needs to be set to On. This parameter is available in some of the Visual Definition icons (e.g.  Contouring, Graph Plotting and Wind Plotting).

To specify how a plot's legend is displayed, Metview provides a special icon, named Legend. It controls features such as the legend's position, style and fonts.

To demonstrate the Legend's concept, do the following:

  • Visualise icon t_fc24.grib.
  • drop icon shade into the Display Window (certify that parameter Legend is set to On).

The result shows a default legend sitting at the top of the plot. Let's move the plot legend to the right of the map:

  • create a new Legend icon and rename it to xsdiff. Edit it and do the following:

 

 

- The Legend icon contains parameters to make it 'Positional'

instead of 'Automatic'

 

Annotation View

 

 

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