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What is on the Main Map page of this web site?



The Main Map page is the menu (map) where you access the LiDAR images of Samoa.


LiDAR Sample
Area Selection Map/Menu

Select Area on map to view LiDAR
[Show/Hide Archaeolopgical Features]
Archaeological Features
Archaeological Features

On the Main Map page you will see a clickable image map of Samoa. (See the image to the left.)


Simply place the courser (which changes from an arrow to hand) over the area on the map you wish to explore.


Notice the area name that appears in a white box below the hand. This gives you an idea of which area you are selecting. (See insert on map to left.)


Upon clicking the left mouse button you are taken to the LiDAR map for the area you selected (be patient, the speed at which the LiDAR image appears will depend on the speed of your internet connection).



A map with or without the locations of viewable Archaeological Features, shown in red, can be displayed by selecting the [Show/Hide Archaeolopgical Features] link under the Select Area on map to view LiDAR text above the map. (See the image to the left.)





LiDAR Map Page Layout


•    The LiDAR Map Page contains 11 basic part:


LiDAR Map Page
LiDAR Map Page


 1.
Zoon In/Out
 7.
Aerial Photo
Opacity Slider


 2.
Scale

 8.
Layer Menu

 3.
Visitor Counter

 9.
LiDAR Legend

 4.
LiDAR Map

 10.
On Page Help

 5.
Layer List

 11.
Show/Hide
LiDAR Legend


 6.
Web Page Menu



Select an item to learn more or
slide down the page.





1.
The Zoom In/Out button zoomcontrol.jpg allows you to zoon in and out on the LiDAR Map to get a better view of the area. The map can be moved around on the screen by using the left mouse button and the hand hand.png to drag the image.

    There are 3 ways to zoom in and out:
        1. Select + or - on the Zoom In/Out Button with a left mouse click to zoom in/out
        2. Use the scroll wheel on the mouse.
        3. Do a box zoom (drag with your mouse while
            pressing the shift key on the keyboard)

HINT: To see most archaeological features you need to zoom in to where the scale (see #2: Map Scale) shows 50m. This can be done by pressing the + button "6" times.

Please make sure to look over the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.

[Back to LiDAR Map Page Layout Menu]





2.
The Map Scale  scale.jpg  displays the scale for your current map zoom level. The scale changes as you change the zoom level of the map to give you an idea of the size of the object you see on the screen.

Please make sure to look over the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.

[Back to LiDAR Map Page Layout Menu]






3.
The Visitor Counter  Lidar Map.jpg  displays the number of times that the LiDAR Maps have been viewed. This gives us some idea of how useful/used the web page is.

Please make sure to look over the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.

[Back to LiDAR Map Page Layout Menu]





4.

The LiDAR Map displays the LiDAR images and archaeological features for the selected area of Samoa. With the map tools available on this page you can move around, zoom in and out, manipulate the maps, and change the layers to better see the archaeological features on the LiDAR images.
Blank areas within the map indicate areas of "bad" LiDAR caused by heavy clouds in the area during the collection of the LiDAR data.

Lidar Map.jpg

Please make sure to look over the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.

[Back to LiDAR Map Page Layout Menu]





5.

The Layer List is activated by placing the mouse (Hand: hand.png ) over the Layer Menu (#8 below). From the Layer List you can then select other layers of the map to view: Roads, Rivers, Contours, and/or Villages.
If the box in front of the layer is checked Main Menu it is turned on and can be seen, if their is no check mark Main Menu it is turned off and does not display. The check is turned on/off with a left mouse click.

layerlist.jpg

Please make sure to look over the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.

[Back to LiDAR Map Page Layout Menu]





6.

The Web Page Menu allows you to move around within the Map Server web page.

pagemenu.jpg


Home Button
Home Button
The Home button connects you to the Home/Main page of the Map Server web page.
This page explains what the Map Server web page is and why it was created.

Main Map Button
Main Map Button
The Main Map button connects you to the menu (map) where you access the LiDAR images of Samoa, (see: What is on the Main Map page of this web site? [above]).
         Backgrond Button
Background Button
The Backgrond button takes you to the "Centre for Samoan Studies Samoan Heritage Project/AFCP" page that contains some background on the "Samoan Heritage Survey and Database" along with additional information from the project.

LiDAR Info Button
LiDAR Info Button
The LiDAR Info button takes you to a short explaination of what LiDAR is and a Tutorial to help you recognize the archaeological and modern features seen on the LiDAR images and Aerial Photos.

Help Button
Help Button
The Help button takes you to the page you are currently viewing that gives you information on how to use the web page.

Please make sure to look over the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.

[Back to LiDAR Map Page Layout Menu]







7.
The Aerial Photo Opacity Slider  Lidar Map.jpg   is a slider that allows you to overlay an aerial photo/image over the top of the current LiDAR image.
Moving the sider down decreases the opacity, making the areial photo more transparent. Moving the slider up increases the opacity of the areial photo, making the arial photo move visable. This allows you to readily compare the modern featrues as seen on the areial photo with the archaeological features easily seen on LiDAR (see the examples below).

Lidar Map.jpgLidar Map.jpgLidar Map.jpg

Please make sure to look over the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.

[Back to LiDAR Map Page Layout Menu]





8.
The Layer Menu  Lidar Map.jpg  allows you to access the Layer List (#5 above). Simply move the hand  hand.png  over the Layer Menu to see the Layer List.

Please make sure to look over the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.

[Back to LiDAR Map Page Layout Menu]




9.
The LiDAR Legend displays samples of the archaeological features you will likely encounter on the LiDAR images displayed on the Map Server web page. Keep in mind that these are only samples and that there is quite a bit of variability in the archeaological features.

Lidar Map.jpg

More detailed information about these features is given in the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.

[Back to LiDAR Map Page Layout Menu]




10.
The On Page Help gives you direct access to pop up widows of page specific help. Click on link to see help about a specific topic. These help pages can be closed when no longer needed.

PageHelp.png

Please make sure to look over the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.

[Back to LiDAR Map Page Layout Menu]





11.
The Show/Hide LiDAR Legend button  hideshowlegend.jpg  allows you to hide or show the LiDAR Legend (#9 above). Click once to hide/show legend.

Please make sure to look over the LiDAR Info section of this web page so that you can develop a better understanding of what you are seeing on the images.


[Back to LiDAR Map Page Layout Menu]




LiDAR curtesy of MNRE
(C) 2018 Centre for Samoan Studies, National University of Samoa. All Rights Reserved.