1. What is a DRG map and what does it stand for? 2. What is the shipping policy? 3.What is the refund and exchange policy? 4. What is the order acceptance policy? 5. What is DRG Maps' contact information? 6. Why are there excessive black horizontal streaks across the maps when I open them in Windows? 7. What do I need to view the maps? 8. How do I install the included software? 9. How do I view/open the maps? 10. How do I print maps? 11. What is the difference between map scales? 12. How do I remove the collars from the maps? 13. How do I mosaic the maps? 14. How do I project maps that are not GeoTIFFs and do not automatically project? 15. Where can I find metadata? 16. What is the difference between TIFF and GeoTIFF format? 17. Can maps in TIFF format without GeoTIFF tags be saved with GeoTIFF tags? 18. What are the system requirements? Windows? Macintosh? 1. What is a DRG Map and what does it stand for? DRG stands for Digital Raster Graphic. A DRG is a scanned image of a U.S. Geological Survey (USGS) standard series topographic map. The image is georeferenced to the surface of the earth and fit to the Universal Transverse Mercator projection or other projection. The horizontal positional accuracy and datum of the DRG matches the accuracy and datum of the source map. The map is usually scanned at a resolution of 250 or 500 dots per inch. For more information please visit the USGS. 2. What is the shipping policy? Orders are normally shipped 2-5 business days (except holidays) after placement via USPS (except National Geographic products which usually ship UPS Ground and USGS paper maps which usually ship FedEx Ground). All shipping charges are final and cannot and will not be refunded for any reason. International orders are not accepted unless prior arrangements are made. 3. What is the refund and exchange policy? All sales are final. There are no refunds or exchanges of the products unless they are defective. All defective products will be replaced at our discretion. 4. What is the order acceptance policy? Item availability and prices are subject to change at any time, without notice. DRG Maps reserves the right to accept, refuse, or limit your order for any reason, including, but not limited to, credit review, the unavailability of a product or errors in the prices and product descriptions posted anywhere on this web site. In the event your order is not accepted, you will be notified of cancellation by e-mail, and we will process a refund. By placing your order, you agree that DRG Maps' total liability, under any legal theory or claim, shall be limited to the purchase price actually paid to DRG Maps for the product giving rise to DRG Maps' liability. DRG Maps reserves the right to change any of these policies at any time without notice. Updated 02/09/2004. 5. What is DRG Maps' contact information? email DRG Maps 4408 SE Meadowcrest CT Milwaukie, OR 97222 6. Why are there excessive black horizontal streaks across the maps when I open them in Windows? In most cases, you cannont use a Windows viewer to view the maps properly. You need to have GIS viewing software installed (see question 7. & 8.) or open the maps in a photo editing program like photoshop. 7. What do I need to view the maps? All you need is a computer and the CD-ROM discs that come with your order. You can use free viewing software or upgrade to Global Mapper. Free viewing software is included on the last CD-ROM disc of any set ordered to allow you to view and manipulate the maps. Please visit the Sofware Section for more information on what software is included. You can use the included software or any GIS or photo editing software. You can upgrade from the included dlgv32 Pro viewing software to the full version of Global Mapper for an additional fee. 8. How do I install the included software? Insert the last CD-ROM of the set you ordered into your CD-ROM, CD-RW, DVD-ROM, or DVD-RW drive. Navigate to the contents of the CD-ROM (using My Computer, Explorer...) and double-click on dlgvview.exe to install dlgv32 Pro or arcexplr.exe for ArcExplorer 2. Follown on-screen instructions. 9. How do I view/open the maps? You will need to have a viewing software like dlgv32 Pro installed. Read question 7. for details on how to do this. Open the dlgv32 Pro program. To open/view the desired map, Click File then Open As New. The open dialog box will pop up. Slect the map you want and click Open. 10. How do I print maps? Open up the map you want to print using the dlgv32 Pro program. If you do not have this program, install it from the last CD-ROM or download it by visiting the software section. After the map is open, zoom to desired level with the desired portion of the map on the screen. Click File then Print Setup. The Print Setup dialog box will pop up. Change the orientation to landscape. Click OK. Next, click File then Print. The Print dialog box will pop up. Click OK to begin printing. You can also open up the maps in a photo editing program like PhotoShop and print from there. 11. What is the difference between map scales? The 1°x2° (1:250k) scale is the farthest zoom out. It is an overview scale and the least detailed. The next scale, 30'x60' (1:100k), is a little more detailed then the 1°x2° scale. Four 30'x60' maps equal one 1°x2° map. The most detailed, scale 7.5' (1:24k), is the closest zoom and shows all the details of an area. Thrirty-two 7.5' maps equal one 30'x60' map and one-hundred and twenty-eight equal one 1°x2° map. 12. How do I remove the collars from the maps? You will need to have dlgv32 Pro installed. See question 7. for details on how to do this. Open the dlgv32 Pro program and the desired map (see question 8.). Click Tools then Control Center. The Overlay Control Center dialog box will pop up. Select the desired map and then click Options. Put a checkmark next to Auto-clip Collar and then click OK. Click Close to close the Overlay Control Pannel. 13. How do I mosaic the maps? You will need to have dlgv32 Pro installed. See question 7. for details on how to do this. Open the dlgv32 Pro program and then open the first map (see question 8.) you want to use in your mosaic of maps. Next, click Open Into Current. The Open dialog box will pop up. Select the desired map you want to add to your mosaic and click Open. If your maps have collars, you may want to use the auto-clip feature (see question 11.) in dlgv32 Pro to remove them and make all your maps connect seamlessly. 14. How do I project maps that are not GeoTIFFs and do not automatically project? You will need to have dlgv32 Pro or Global Mapper installed. See question 7. for details on how to do this. Open the dlgv32 Pro or Global Mapper program and the desired map (see question 8.). A Global Mapper dialog box should pop up, since the map is not a GeoTIFF, saying, "Based on the filename, the projection of this file was guessed to be: ..." Click No. Another Global Mapper dialog box will pop up saying, "TIFF file does not contain projection information. Please select the projection/datum for this file. etc." (The second dialog box may be the only one that pop ups up.) Click OK and the Select File Projection dialog box will pop up. Refer to the product description on this website for the product you purchased. It will list the projection and datum information. For Wisconsin, select WTM83/91 (Wisc Transverse Me in the Projection: drop-down box, leave everything else the same, and click OK. The map will be loaded correctly. Repeat this procedure for any maps you want to open and other states whose maps are not GeoTIFFs. 15. Where can I find metadata? Visit the Example Maps section of this website and download the appropriate file. 16. What is the difference between TIFF and GeoTIFF format? Both TIFF and GeoTIFF formatted maps are .tif images. The only difference is GeoTIFFs have georeferencing information imbedded into the file. When you open a GeoTIFF map, it is autmatically georeferenced. You have to manually reference TIFF formatted maps (see question 14). 17. Can maps in TIFF format without GeoTIFF tags be saved with GeoTIFF tags? Yes. You need a GIS application, like Global Mapper, which can export GeoTIFF files. 18. What are the system requirements? Windows? Macitosh? Windows 95 and higher, 64+ MB RAM (128+ MB recommended). Viewing software is not Mac compatible, but most of the maps (DRGs) are compatible. The native projection maps work very well with MacGPS Pro. These are the GeoTIFF maps in UTM/NAD27. The 'State Plane' projected maps do not seem to work with MacGPS Pro.