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7/30/2019 Global Swiss

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Global Mapper:

The Swiss Army Knife For GIS!

Kent D. Brown, and J. Buck Ehler

Utah Geological Survey

Moscow, Idaho

May 18-21, 2008

Warning: Sensible discretion is advised. Any resemblance to a Global Mapper shill is purely coincidental!


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Global Mapper includes powerful data

manipulation and translation tools at

significant performance increases overother traditional methods, and at a

very low cost!

Global Mapper: The Swiss Army Knife For GIS!


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Global Mapper: Mosaic Elevation and Raster Data

Lets review some of the tools!


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Mosaic any number of digital orthos, topo maps,

shaded relief maps, elevation models, etc., very

quickly.



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Mosaic Elevation Data: Traditional Method


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Mosaic Elevation Data: Traditional Method

Standard ArcMap

display of multiple

elevation data sets,

using same color

ramp.

ArcMap renderseach layer based on

its elevation range

causing

conspicuous seams

between layers


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Here we are viewing

the same elevation

grids in Global

Mapper using a

similar color ramp.

Global Mapperautomatically merges

all loaded elevation

datasets together

regardless of type,

projection, or

resolution.


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shaded relief maps, elevation models, etc., very

quickly.

Create better quality shaded relief maps from any

elevation data.



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Creating Shaded Relief Maps: Traditional Method

Only limited settings available, and only

one hillshade can be created at a time.

Rendering of hillshade is not shown until

calculations are complete. Changes to

settings require creation of new hillshade.

Output formats limited to:

ERDAS Imagine, GRID, and GeoTIFF


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Global Mapper: Improved Shaded-Relief Maps

Global Mapper settings:

sun angle

azimuth ambient lighting

vertical exaggeration

hill shading shadow darkness

water display at a specific elevation

water transparency

color intensity

transparency


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Global Mapper: Improved Shaded-Relief MapsOn-the-fly shaded-relief

rendering of any number of

elevation data sets.

No need to calculate

multiple shaded relief

images to get a feel for the

best settings of an area.

A wide variety of shaded

relief settings allow the user

more control over the look

of their shaded relief,

including rendering water

levels.

Raster export formats:* BIL/BIP/BSQ

* ECW

* Erdas Imagine

* GeoTIFF

* KML/KMZ raster tiles

* Google Maps tiles

* Idrisi

* JPG

* JPG2000* PNG


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Global Mapper: Improved Shaded-Relief Maps

Comparison:

The result from

Global Mapper is

more appropriate

for display under

geologic data, and

will compliment

the topographic

base map. Also,the ability to

model water

elevations can be

useful for what-

if scenarios and

inundation maps.

The example fromArcMap will

obscure the GIS

data themes in the

shadow areas.

Global Mapper ArcMap

Sun angle and azimuth are the same in both examples


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shaded relief maps, elevation models, etc., veryquickly.


elevation data.

Easy mass-clipping of rectified images to quad

boundaries (crop collars from topos instantly!).



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Global Mapper: Mass-Clipping Raster Data

Easily remove DRGcollars, in a snap!


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These four quadswere clipped in less

than 3 seconds; no

need need to select

clip features!


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Zoom in to inspectresults.

Now you can export

the image as one of

these raster formats:

* BIL/BIP/BSQ

* ECW

* Erdas Imagine

* GeoTIFF

* KML/KMZ raster tiles

* Google Maps tiles

* Idrisi

* JPG* JPG2000

* PNG


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elevation data.



Raster blending of multiple raster images using the

multiple tool.



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Global Mapper: Raster Blending

Start with the DRGs.

Now add the shaded-

relief.

Setup the blending

options for the raster

layers. Choose

multiple.


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Now we have a nice

shaded-relief base foruse under polygons!

We can blend the

DRGs with theorthos.

Or...

Or...

We can blend the

DRGs, orthos, and

the shaded relief.

Or..?


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Now we can save

these blended imagesas a single file in any

of these formats:

* BIL/BIP/BSQ

* ECW

* Erdas Imagine

* GeoTIFF* KML/KMZ raster tiles

* Google Maps tiles

* Idrisi

* JPG

* JPG2000

* PNG


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Global Mapper: Raster Blending - Comparison

Here we compare the

results exported from

both ArcMap and

Global Mapper.

Notice the differencein quality with the

contours and text.

Global MapperArcMap


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elevation data.




multiple tool.

Batch re-projection and format conversion.



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Global Mapper: Data Re-projection and Conversion

Here we batch processDRGs, changing image

format and projection.

This can be done with

any raster, vector, or

elevation data, to anyprojection or supported

data format.


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Global Mapper: Data Re-projection and Conversion

Result:

JPEG2000 files in

Lambert Azimuthal

Equal-Area projection.

This batch processing

works for all raster,

vector, and elevation

data.


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elevation data.




multiple tool.


Export raster and vector data to KML/KMZ files.



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Global Mapper: Export to Google Earth KML/KMZ

We started with araster of the polygon

fills. Over this we add

symbolized geology

lines exploded from

CAD vectors.


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Now we export theraster as a JPG, TIFF,

or PNG tiled KMZ

format image.


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Next is the geologyvectors, exported as

KML format.


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View theresults in

Google

Earth.


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elevation data.




multiple tool.



3-D surface profile generation.



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Global Mapper: 3-D surface profile generation

Create 3D profiles of

cross-section lines, roads,

trails, etc., from loaded

elevation data.

Import your own lines or

create them with the

digitizer tool.

Profile of imported cross-section line

Profile of irregular, digitized line

Run the profile tool to

create an image of the

profile that can be saved

out as a raster.

Or


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Global Mapper: 3-D surface profile generation

Now you can import the

XY ASCII text file to

create this vector profile.

Save the profile line as

an ASCII text file with

XY (distance/elevation)

values that can be used

as the basis for creating

a cross-section.

A grid display can be

configured with the

profile. The result canthen be used for drawing

the geologic cross-section.


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elevation data.




multiple tool.



3-D surface profile generation.



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Opens ESRI shape files, .E00 files, and coverages, without conversion!! Maintains data table attributes from imported features.

Open files directly from tar.gz or .zip archives, even straight from the Webwithout downloading (awesome for SDTS data!).

Supports on-the-fly re-projection.

Geospatial rectification of raster and vector data. Access data directly from any Web Map Service (WMS), e.g., DigitalGlobe,Microsoft TerraServer-USA.

Generate contours from elevation data.

Create elevation data (grids) from contours or 3-D points.

View your data layers in 3-D using the included 3-D viewer.

and so much more!

Other Features


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What Global Mapper does NOT do!

Is not a GIS, per se.

Does not read or write geodatabase feature classes, yet!

Weak on searching and editing feature data tables.

Limited point, line, and area symbolization.

Does not provide a print layout tool.

Very simplified vector creation and editing tools.

Postscript_20100324: These facts were current as of Global Mapper version 9. The current version 11 now supports many of these

former weak points and ESRI personal geodatabases are now supported; lets hope file geodatabase support follows soon!


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Thank you!

Contact info: Kent BrownUtah Geological Survey

[email protected]

http://geology.utah.gov

Global Mapper LLC - http://www.globalmapper.com/

Buck EhlerUtah Geological Survey

[email protected]

Under $300!!
http://www.globalmapper.com/http://www.globalmapper.com/

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