• A Java applet is required to use the WebViewer. The first time that you visit the WebViewer site, approve the installation of the Java program if you are prompted to do so.
• When using the viewer, the basic toolbar buttons which are the most useful are listed and shown below with a red arrow. Use the WebViewer toolbar, not the browser tool bar.

Open  Refresh       Print        AOI   Zoom Extent       Previous  Zoom In / Out  Pan                               Identify (line)           Options Help Exit

• The most important buttons are the Refresh Map button, the navigation buttons and the Identify button.
• The Open Map Site button applies only if you have access to more than one mapping view.
• The Refresh Map button needs to be clicked after selecting any new layers boxes.
• Print - printer options, setup and Print Preview
• AOI (Area of Interest) - Map views can be saved to return to Areas of Interest.
• Zoom to Map Extent - zooms to the USA map
• Previous - goes to your previous view.
• Zoom In - To zoom in, click on the Zoom In button and click on the map or drag a rectangle on the map. The map will zoom in each time that you click on the map or drag a rectangle, until you click on the Zoom Out button.
• Zoom Out - To zoom out, click on the Zoom Out button and click on the map or drag a rectangle on the map. The map will zoom out each time that you click on the map or drag a rectangle, until you click on the Zoom In button.
• Pan - When you are at a satisfactory zoom level, click on the Pan button and click and hold the map with the left mouse button to drag the map.
• Identify - For detailed line or 3D information (parameters, mileage, price, etc.), click on the Identify button then click on a line or a 3D outline. If you want information on more than one line or 3D at a time, drag a rectangle around the area of interest.
• Options - to set map display units, colors, toolbar configuration, etc.
• Help - detailed Tobin WebViewer help information
• Exit - exits the WebViewer completely. If you want to come back to the WebViewer soon, minimize the window, and you will not have to log-in again.
• To make map viewing faster, the map layers boxes which are open should not be clicked until you have zoomed in to your area of interest.
• After you have zoomed in to your area of interest, the LINES layer box will open and will need to be checked to view 2D data. The 3D layer box needs to be checked to view 3D data. To view Township/Ranges and Sections the TOWNSHIPS_JEFF and SECTIONS_JEFF layers boxes need to be checked when they appear open. To view Texas surveys the TX_GRANTEE and TX_SECTION layers boxes need to be checked when they appear open.
• Remember to click the Refresh Map button after selecting any new layers boxes.
• To make map viewing faster, map layers or open boxes are set to appear at these zoom levels:

SEI 2D Lines  Townships  Sections  Texas Surveys  Counties - Low Resolution  Counties - High Resolution States - Low Resolution  States - High Resolution  Federal Offshore Blks.  State Offshore Blks.

1:3,250,000  1:1,200,000  1:800,000  1:500,000  1:1,680,000 (not below) 1:1,680,000  1:1,680,000 (not below) 1:1,680,00  1:1,500,000  1:1,500,000

• To determine the Latitude-Longitude of the center of your area of interest, put the cursor at the center of your area of interest and read the Latitude-Longitude at the lower left of the window. You can then use this geocenter to request an automatically generated map from SEI REQUEST 2D and 3D MAP
• To extract shape file sets of SEI proprietary 2D (stick lines) and SEI proprietary 3D (outlines):

- Zoom in so that the red active layer box is visible. Double-click to change the active layer.

- Select 2D and/or 3D layers by clicking the boxes, then click Refresh Map.

- Zoom and Pan to the map view that you want to extract shape files for.

- Do not select too large an area, as the large extracted file size will cause a slow download.

- Go to File - Extract. If a script error box pops up, double-click Yes to continue.

- Select Shape File Extract and click Extract to Shape File. The shape files will be zipped.

- If a pop-up with the zipped files does not appear, turn off your browser's pop-up blocker and hold down the CTRL key.

- 2D lines will be in the LINES set, and 3D outlines will be in the 3D set.

- The set names do not change on later selections, so save them to a different folder.

 -The projection of the shape file sets is Geographic (latitude-longitude) NAD 27.

 

 

For any problems contact WebHelp@seismicexchange.com.