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Hi, in this demonstration we will show how to include raster data into Skyline's 3D digital globe.
In this case my base data is 5 Km imagery with no elevation data included.
To give the scene better definition, I will now add a low resolution TIFF image from my local file system.
I am going to select Create Resolution Pyramid from the Tools menu to make the multiple
levels of resolution needed to display the source efficiently at all distances.
Note the source file is now visible at all distances.
To enhance the scene, let's add a data source for an urban area at a much better resolution.
Now I am going to add another image located adjacent to the first.
TerraExplorer Pro will automatically detect a file type, but for this demonstration, we'll use
the files of type to show other supported formats.
Some times you may need to enter a new projection, which is not included on the select menu.
In these cases, projection information can be entered into the Well-Known Text box as I'll show.
Unfortunately reprojecting the data to Lat/Long, has created black rectangles around each source.
in order to remove the sniffer source i will add a clip polygon water mask of
these black areas.
TerraExplorer Pro allows me to add a complex clip polygon to a raster layer right
inside the program, or I can import a premade SHP file to act as a clip.
As I'll demonstrate in the second image,
you can use the Remove Null Values function inside the Properties Sheet to remove a specific
color from a raster automatically.
When using elevation files, you can also remove a specific elevation value from the source.
Showing the two sources side by side you can see a gap in the hi-resolution data.
This will be overcome in a moment by importing an imagery file with a larger footprint
Now that we have several image rasters in the scene, I will add some elevation data.
You can now see that the terrain changes.
You will notice specifically the elevation difference in the mountains.
As I inspect the new elevation data, I come back to the seam in my higher-res imagery.
I previously used our application TerraBuilder,
to tile several images into an easy to manage reference file, called a TLT.
Bringing in this TLT file into TerraExplorer Pro as an imagery file closes the gap.
To add more imagery to the scene on top of these local imagery and elevation files,
we can also add data from a TerraGate or from WMS sources.
You'll notice how the foreground and background are now consistent. This layer imports the contents
of the selected Direct Connect project as a datasource.
Seeing that the SkylineGlobe layer has now drawn on top of the TLT I brought in first.
I need to adjust the draw order of the TLT using its Properties Sheet.
This feature is useful when handling many overlays at once.
You'll note the difference in color balances for each source when seen up close.
I can also load raster data by WMS.
My previously connected WMS servers are already stored in the Server Address dropdown.
In order to establish a connection and begin pulling data,
I must at least select a Lat-Long Units Per Pixel value.
The data will stream up to and including only that designated Lat-Long UPP resolution as I zoom in.
In this video, we began with a simple base MPT and loaded rasters to enhance the scene,
including local imagery and elevation data.
Then we enhanced the scene further with clipped layers and layers added from TerraGate and WMS.